| 1 | //! Chat Completions API helpers for DeepSeek's OpenAI-compatible endpoint. |
| 2 | //! |
| 3 | //! This is the production code path. Streaming (`create_message_stream`), |
| 4 | //! request building (`build_chat_messages*`), and SSE parsing |
| 5 | //! (`parse_sse_chunk_with_reasoning_style`) all live here. |
| 6 | |
| 7 | use std::collections::{HashMap, HashSet}; |
| 8 | use std::io::Write; |
| 9 | use std::pin::Pin; |
| 10 | use std::time::Duration; |
| 11 | |
| 12 | use anyhow::{Context, Result}; |
| 13 | use serde::{Deserialize, Serialize}; |
| 14 | use serde_json::{Value, json}; |
| 15 | use tokio::time::timeout as tokio_timeout; |
| 16 | |
| 17 | use crate::config::{ |
| 18 | TOGETHER_INKLING_MODEL, is_exact_direct_moonshot_k3_route, is_exact_kimi_code_k3_route, |
| 19 | is_exact_zai_chat_route, is_exact_zai_tiered_effort_route, |
| 20 | minimax_m3_route_uses_max_completion_tokens, wire_model_for_provider_route, |
| 21 | }; |
| 22 | |
| 23 | // The bounded response-header wait (`stream_open_timeout`) and its env |
| 24 | // override live in the shared stream-entry seam; every streaming adapter |
| 25 | // (Chat Completions / Anthropic Messages / Responses) uses the same policy. |
| 26 | use super::stream_entry::stream_open_timeout; |
| 27 | |
| 28 | fn stream_idle_timeout_message( |
| 29 | idle: Duration, |
| 30 | bytes_received: usize, |
| 31 | stream_age: Duration, |
| 32 | since_last_chunk: Duration, |
| 33 | ) -> String { |
| 34 | // Shared seam: Chat Completions / Anthropic / Responses keep one message shape. |
| 35 | super::stream_entry::idle_timeout_message(idle, bytes_received, stream_age, since_last_chunk) |
| 36 | } |
| 37 | |
| 38 | use crate::config::ApiProvider; |
| 39 | use crate::llm_client::StreamEventBox; |
| 40 | use crate::llm_client::sanitize_http_error_body; |
| 41 | use crate::logging; |
| 42 | use crate::models::{ |
| 43 | ContentBlock, ContentBlockStart, Delta, Message, MessageDelta, MessageRequest, MessageResponse, |
| 44 | StreamEvent, SystemPrompt, Tool, ToolCaller, Usage, is_openai_gpt_56_api_model, |
| 45 | model_is_openai_reasoning_family, model_supports_reasoning, |
| 46 | }; |
| 47 | |
| 48 | use super::{ |
| 49 | DeepSeekClient, ERROR_BODY_MAX_BYTES, SSE_BACKPRESSURE_HIGH_WATERMARK, |
| 50 | SSE_BACKPRESSURE_SLEEP_MS, SSE_MAX_LINES_PER_CHUNK, acquire_stream_buffer, |
| 51 | apply_reasoning_effort, bounded_error_text, from_api_tool_name, parse_usage, |
| 52 | release_stream_buffer, system_to_instructions, to_api_tool_name, |
| 53 | }; |
| 54 | |
| 55 | fn apply_provider_token_limit( |
| 56 | body: &mut Value, |
| 57 | provider: ApiProvider, |
| 58 | base_url: &str, |
| 59 | model: &str, |
| 60 | max_tokens: u32, |
| 61 | ) { |
| 62 | let use_max_completion_tokens = provider == ApiProvider::XiaomiMimo |
| 63 | || (provider == ApiProvider::Openai && model_is_openai_reasoning_family(model)) |
| 64 | || minimax_m3_route_uses_max_completion_tokens(provider, base_url, model) |
| 65 | || is_exact_direct_moonshot_k3_route(provider, base_url, model); |
| 66 | if !use_max_completion_tokens { |
| 67 | return; |
| 68 | } |
| 69 | |
| 70 | if let Some(object) = body.as_object_mut() { |
| 71 | object.remove("max_tokens"); |
| 72 | } |
| 73 | body["max_completion_tokens"] = json!(max_tokens); |
| 74 | } |
| 75 | |
| 76 | fn apply_openai_reasoning_effort( |
| 77 | body: &mut Value, |
| 78 | provider: ApiProvider, |
| 79 | model: &str, |
| 80 | effort: Option<&str>, |
| 81 | ) { |
| 82 | let model_lower = model.trim().to_ascii_lowercase(); |
| 83 | let is_gpt_56 = |
| 84 | provider == ApiProvider::Openai && is_openai_gpt_56_api_model(model_lower.as_str()); |
| 85 | let is_openai_reasoning = |
| 86 | provider == ApiProvider::Openai && model_is_openai_reasoning_family(model); |
| 87 | let is_muse_spark = provider == ApiProvider::Meta |
| 88 | && matches!( |
| 89 | model_lower.as_str(), |
| 90 | "muse-spark-1.1" | "muse-spark-1.2" | "muse-spark-1.2-contributor" |
| 91 | ); |
| 92 | if !is_openai_reasoning && !is_muse_spark { |
| 93 | return; |
| 94 | } |
| 95 | let Some(effort) = |
| 96 | effort.and_then(|value| openai_compatible_reasoning_effort(value, is_gpt_56, !is_gpt_56)) |
| 97 | else { |
| 98 | return; |
| 99 | }; |
| 100 | body["reasoning_effort"] = json!(effort); |
| 101 | } |
| 102 | |
| 103 | fn apply_inkling_reasoning_effort( |
| 104 | body: &mut Value, |
| 105 | provider: ApiProvider, |
| 106 | model: &str, |
| 107 | effort: Option<&str>, |
| 108 | ) { |
| 109 | if provider != ApiProvider::Together |
| 110 | || !model.trim().eq_ignore_ascii_case(TOGETHER_INKLING_MODEL) |
| 111 | { |
| 112 | return; |
| 113 | } |
| 114 | |
| 115 | // Inkling's official chat template accepts OpenAI's top-level |
| 116 | // `reasoning_effort` field with this exact vocabulary. It does not use |
| 117 | // Together's generic `thinking` extension or the `xhigh` wire value. |
| 118 | if let Some(object) = body.as_object_mut() { |
| 119 | object.remove("thinking"); |
| 120 | } |
| 121 | let Some(effort) = effort else { |
| 122 | return; |
| 123 | }; |
| 124 | let wire_effort = match effort.trim().to_ascii_lowercase().as_str() { |
| 125 | "off" | "disabled" | "none" | "false" => "none", |
| 126 | "minimal" => "minimal", |
| 127 | "low" => "low", |
| 128 | "medium" | "mid" | "" => "medium", |
| 129 | "high" => "high", |
| 130 | "max" | "xhigh" | "highest" | "ultracode" => "max", |
| 131 | _ => return, |
| 132 | }; |
| 133 | body["reasoning_effort"] = json!(wire_effort); |
| 134 | } |
| 135 | |
| 136 | /// Apply Kimi Code K3's route-specific nested thinking effort after the |
| 137 | /// generic Moonshot shaping. Other Moonshot and Kimi-compatible routes accept |
| 138 | /// only the generic enabled/disabled form, so the exact endpoint and bare |
| 139 | /// model identifier are both part of this guard. |
| 140 | fn apply_kimi_code_k3_reasoning_effort( |
| 141 | body: &mut Value, |
| 142 | provider: ApiProvider, |
| 143 | base_url: &str, |
| 144 | model: &str, |
| 145 | effort: Option<&str>, |
| 146 | ) { |
| 147 | if !is_exact_kimi_code_k3_route(provider, base_url, model) { |
| 148 | return; |
| 149 | } |
| 150 | let Some(effort) = effort else { |
| 151 | return; |
| 152 | }; |
| 153 | |
| 154 | let thinking = match effort.trim().to_ascii_lowercase().as_str() { |
| 155 | "off" | "none" | "disabled" | "false" | "low" | "minimum" | "minimal" | "light" => { |
| 156 | json!({ "type": "enabled", "effort": "low" }) |
| 157 | } |
| 158 | "medium" | "high" => json!({ "type": "enabled", "effort": "high" }), |
| 159 | "xhigh" | "ultra" | "max" => json!({ "type": "enabled", "effort": "max" }), |
| 160 | _ => return, |
| 161 | }; |
| 162 | |
| 163 | // K3 uses the nested `thinking.effort` dialect. Do not leave an |
| 164 | // OpenAI-style effort value behind if another shaping layer was added |
| 165 | // before this route-specific override. |
| 166 | if let Some(object) = body.as_object_mut() { |
| 167 | object.remove("reasoning_effort"); |
| 168 | } |
| 169 | body["thinking"] = thinking; |
| 170 | } |
| 171 | |
| 172 | /// Apply Moonshot's direct K3 reasoning dialect. |
| 173 | /// |
| 174 | /// The pay-as-you-go K3 endpoint is always-thinking and accepts only the |
| 175 | /// top-level `reasoning_effort` values low/high/max. In particular, a generic |
| 176 | /// Moonshot `thinking: {type: disabled}` payload is not truthful for this |
| 177 | /// route. Treat a legacy raw `off` as the lowest supported tier defensively; |
| 178 | /// route-aware callers normalize it before it reaches this layer. |
| 179 | fn apply_direct_moonshot_k3_reasoning_effort( |
| 180 | body: &mut Value, |
| 181 | provider: ApiProvider, |
| 182 | base_url: &str, |
| 183 | model: &str, |
| 184 | effort: Option<&str>, |
| 185 | ) { |
| 186 | if !is_exact_direct_moonshot_k3_route(provider, base_url, model) { |
| 187 | return; |
| 188 | } |
| 189 | |
| 190 | if let Some(object) = body.as_object_mut() { |
| 191 | object.remove("thinking"); |
| 192 | object.remove("reasoning_effort"); |
| 193 | } |
| 194 | let Some(effort) = effort else { |
| 195 | return; |
| 196 | }; |
| 197 | let wire_effort = match effort.trim().to_ascii_lowercase().as_str() { |
| 198 | "off" | "none" | "disabled" | "false" | "low" | "minimum" | "minimal" | "light" => "low", |
| 199 | "medium" | "mid" | "high" | "" => "high", |
| 200 | "xhigh" | "ultra" | "max" | "highest" | "ultracode" => "max", |
| 201 | // `auto` and unknown legacy values leave the field omitted so the |
| 202 | // direct API owns its documented default (`max`). |
| 203 | _ => return, |
| 204 | }; |
| 205 | body["reasoning_effort"] = json!(wire_effort); |
| 206 | } |
| 207 | |
| 208 | /// Keep Z.ai controls on exact first-party routes only. The tiered-effort GLM |
| 209 | /// models (5.2, and 5.3 which inherits its reasoning options) receive the |
| 210 | /// documented top-level effort, GLM-5.1 and GLM-5-Turbo keep only the generic |
| 211 | /// thinking toggle, and compatible gateways receive neither field because their |
| 212 | /// request dialect is not known from provider/model selection alone. |
| 213 | fn apply_zai_route_reasoning_controls( |
| 214 | body: &mut Value, |
| 215 | provider: ApiProvider, |
| 216 | base_url: &str, |
| 217 | model: &str, |
| 218 | effort: Option<&str>, |
| 219 | ) { |
| 220 | if provider != ApiProvider::Zai { |
| 221 | return; |
| 222 | } |
| 223 | |
| 224 | if let Some(object) = body.as_object_mut() { |
| 225 | object.remove("reasoning_effort"); |
| 226 | if !is_exact_zai_chat_route(provider, base_url) { |
| 227 | // A compatible gateway owns its own request dialect. Provider/model |
| 228 | // selection alone is not evidence that Z.ai's `thinking` object is |
| 229 | // supported there, so fail closed instead of leaking it. |
| 230 | object.remove("thinking"); |
| 231 | return; |
| 232 | } |
| 233 | } |
| 234 | if !crate::config::is_exact_known_zai_reasoning_route(provider, base_url, model) { |
| 235 | if let Some(object) = body.as_object_mut() { |
| 236 | object.remove("thinking"); |
| 237 | } |
| 238 | return; |
| 239 | } |
| 240 | if !is_exact_zai_tiered_effort_route(provider, base_url, model) { |
| 241 | // Exact first-party GLM-5-Turbo and GLM-5.1 keep only the generic |
| 242 | // enabled/disabled thinking control. |
| 243 | return; |
| 244 | } |
| 245 | match effort |
| 246 | .map(|value| value.trim().to_ascii_lowercase()) |
| 247 | .as_deref() |
| 248 | { |
| 249 | Some("high") => body["reasoning_effort"] = json!("high"), |
| 250 | Some("xhigh") | Some("max") | Some("highest") | Some("ultracode") => { |
| 251 | body["reasoning_effort"] = json!("max"); |
| 252 | } |
| 253 | // Off, lower tiers, omitted effort, and unknown legacy values retain |
| 254 | // only the generic Z.ai thinking control. |
| 255 | _ => {} |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | /// Add MiniMax's Chat-only reasoning controls only when endpoint and model |
| 260 | /// prove the exact first-party M3 route. A provider label alone is not enough |
| 261 | /// to send MiniMax-specific fields to a compatible gateway or unknown model. |
| 262 | fn apply_minimax_route_reasoning_controls( |
| 263 | body: &mut Value, |
| 264 | provider: ApiProvider, |
| 265 | base_url: &str, |
| 266 | model: &str, |
| 267 | effort: Option<&str>, |
| 268 | ) { |
| 269 | if provider != ApiProvider::Minimax { |
| 270 | return; |
| 271 | } |
| 272 | if let Some(object) = body.as_object_mut() { |
| 273 | object.remove("reasoning_split"); |
| 274 | object.remove("thinking"); |
| 275 | } |
| 276 | if !crate::config::is_exact_minimax_m3_route(provider, base_url, model) { |
| 277 | return; |
| 278 | } |
| 279 | |
| 280 | body["reasoning_split"] = json!(true); |
| 281 | match effort |
| 282 | .map(|value| value.trim().to_ascii_lowercase()) |
| 283 | .as_deref() |
| 284 | { |
| 285 | Some("off" | "disabled" | "none" | "false") => { |
| 286 | body["thinking"] = json!({ "type": "disabled" }); |
| 287 | } |
| 288 | Some( |
| 289 | "low" | "minimal" | "medium" | "mid" | "high" | "xhigh" | "max" | "highest" |
| 290 | | "ultracode" | "", |
| 291 | ) => { |
| 292 | body["thinking"] = json!({ "type": "adaptive" }); |
| 293 | } |
| 294 | _ => {} |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | /// Model Studio's OpenAI-compatible API uses its own top-level reasoning |
| 299 | /// controls. Keep them on verified Alibaba Chat Completions routes: a custom |
| 300 | /// `base_url` points the same provider identity at an arbitrary gateway, and |
| 301 | /// that gateway must not be handed Alibaba's dialect. |
| 302 | /// |
| 303 | /// This is the *sole* writer of Model Studio reasoning fields — |
| 304 | /// `apply_reasoning_effort` deliberately writes nothing for the `Modelstudio*` |
| 305 | /// identities — so the strip below runs for all four variants, including the |
| 306 | /// two Anthropic-dialect ones. Those normally reach the Messages adapter |
| 307 | /// instead, but `wire = "openai"` can route them here, and an unmatched |
| 308 | /// `enable_thinking` left in the body would then go out unguarded. |
| 309 | fn apply_modelstudio_route_reasoning_controls( |
| 310 | body: &mut Value, |
| 311 | provider: ApiProvider, |
| 312 | base_url: &str, |
| 313 | model: &str, |
| 314 | effort: Option<&str>, |
| 315 | ) { |
| 316 | if !matches!( |
| 317 | provider, |
| 318 | ApiProvider::ModelstudioTokenPlan |
| 319 | | ApiProvider::ModelstudioTokenPlanAnthropic |
| 320 | | ApiProvider::ModelstudioCodingPlan |
| 321 | | ApiProvider::ModelstudioCodingPlanAnthropic |
| 322 | ) { |
| 323 | return; |
| 324 | } |
| 325 | |
| 326 | if let Some(object) = body.as_object_mut() { |
| 327 | object.remove("thinking"); |
| 328 | object.remove("enable_thinking"); |
| 329 | object.remove("preserve_thinking"); |
| 330 | object.remove("reasoning_effort"); |
| 331 | } |
| 332 | if !is_exact_modelstudio_chat_route(provider, base_url) { |
| 333 | return; |
| 334 | } |
| 335 | |
| 336 | let thinking_only = modelstudio_model_is_thinking_only(model); |
| 337 | if !thinking_only && !modelstudio_model_is_hybrid(model) { |
| 338 | return; |
| 339 | } |
| 340 | |
| 341 | let thinking_enabled = !modelstudio_effort_disables_thinking(effort); |
| 342 | // Thinking-only models emit `reasoning_content` but reject an |
| 343 | // enable/disable control. Hybrid models use `enable_thinking`. |
| 344 | if !thinking_only { |
| 345 | body["enable_thinking"] = json!(thinking_enabled); |
| 346 | } |
| 347 | if modelstudio_model_supports_preserve_thinking(model) { |
| 348 | // Model Studio otherwise drops assistant `reasoning_content` from the |
| 349 | // next turn's context. This applies even when the provider default |
| 350 | // leaves thinking enabled and no explicit UI effort was selected. |
| 351 | body["preserve_thinking"] = json!(thinking_only || thinking_enabled); |
| 352 | } |
| 353 | if !thinking_only |
| 354 | && thinking_enabled |
| 355 | && let Some(effort) = effort.and_then(modelstudio_reasoning_effort_for_model) |
| 356 | && modelstudio_model_supports_reasoning_effort(model) |
| 357 | { |
| 358 | body["reasoning_effort"] = json!(effort); |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | /// Fail-closed host guard: only Alibaba's own OpenAI-compatible Chat |
| 363 | /// Completions URL shapes count. Anything else (a proxy, a self-hosted |
| 364 | /// gateway, a typo) gets the Model Studio fields stripped and nothing added. |
| 365 | fn is_exact_modelstudio_chat_route(provider: ApiProvider, base_url: &str) -> bool { |
| 366 | let trimmed = base_url.trim().trim_end_matches('/').to_ascii_lowercase(); |
| 367 | let Some((host, path)) = trimmed |
| 368 | .strip_prefix("https://") |
| 369 | .and_then(|rest| rest.split_once('/')) |
| 370 | else { |
| 371 | return false; |
| 372 | }; |
| 373 | |
| 374 | // Includes Token Plan's default and workspace-scoped |
| 375 | // `{workspace}.<region>.maas.aliyuncs.com/compatible-mode/v1` hosts. |
| 376 | let token_plan_chat = host.ends_with(".maas.aliyuncs.com") && path == "compatible-mode/v1"; |
| 377 | let coding_plan_chat = host == "coding-intl.dashscope.aliyuncs.com" && path == "v1"; |
| 378 | // Alibaba's classic pay-as-you-go DashScope endpoints serve the same |
| 379 | // models and the same dialect; leaving them off the allowlist silently |
| 380 | // stripped every reasoning control on a genuine Alibaba host |
| 381 | // (2026-08-04 review). The intl spelling matches the repo's own |
| 382 | // provider defaults. |
| 383 | let classic_dashscope_chat = matches!( |
| 384 | host, |
| 385 | "dashscope.aliyuncs.com" | "dashscope-intl.aliyuncs.com" |
| 386 | ) && path == "compatible-mode/v1"; |
| 387 | |
| 388 | match provider { |
| 389 | // The primary Model Studio provider selects Coding Plan through |
| 390 | // `mode = "coding-plan"`, which resolves this base URL without |
| 391 | // changing the provider enum. Legacy Coding Plan identities remain |
| 392 | // supported as well, so recognize either official Chat route for the |
| 393 | // complete Model Studio OpenAI family. The `*Anthropic` identities |
| 394 | // speak the Messages dialect and are never verified here. |
| 395 | ApiProvider::ModelstudioTokenPlan | ApiProvider::ModelstudioCodingPlan => { |
| 396 | token_plan_chat || coding_plan_chat || classic_dashscope_chat |
| 397 | } |
| 398 | _ => false, |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | fn is_exact_modelstudio_thinking_only_route( |
| 403 | provider: ApiProvider, |
| 404 | base_url: &str, |
| 405 | model: &str, |
| 406 | ) -> bool { |
| 407 | is_exact_modelstudio_chat_route(provider, base_url) && modelstudio_model_is_thinking_only(model) |
| 408 | } |
| 409 | |
| 410 | fn modelstudio_effort_disables_thinking(effort: Option<&str>) -> bool { |
| 411 | effort.is_some_and(|value| { |
| 412 | matches!( |
| 413 | value.trim().to_ascii_lowercase().as_str(), |
| 414 | "off" | "disabled" | "none" | "false" |
| 415 | ) |
| 416 | }) |
| 417 | } |
| 418 | |
| 419 | /// Models with no enable/disable control at all. `models_dev.bundled.json` |
| 420 | /// lists `qwen3.8-max` as `thinking: always_on` and gives `qwen3.8-max-preview` |
| 421 | /// effort/budget options with no `toggle`, so sending `enable_thinking` to |
| 422 | /// either is at best ignored and at worst a 400. |
| 423 | fn modelstudio_model_is_thinking_only(model: &str) -> bool { |
| 424 | let model = model.trim().to_ascii_lowercase(); |
| 425 | matches!(model.as_str(), "qwen3.8-max" | "qwen3.8-max-preview") |
| 426 | // Kimi K2.7 Code on Model Studio is reported always-thinking and |
| 427 | // supporting preserve_thinking. Keep it separate from hybrid Kimi |
| 428 | // variants so we do not send the unsupported enable_thinking switch. |
| 429 | || model.starts_with("kimi-k2.7-code") |
| 430 | } |
| 431 | |
| 432 | fn modelstudio_model_is_hybrid(model: &str) -> bool { |
| 433 | let model = model.trim().to_ascii_lowercase(); |
| 434 | model.starts_with("qwen3.7-") |
| 435 | || model.starts_with("qwen3.6-") |
| 436 | || model.starts_with("qwen3.5-") |
| 437 | || model.starts_with("qwen3-") |
| 438 | || model.starts_with("deepseek-v4") |
| 439 | || model.starts_with("deepseek-v3.2") |
| 440 | || model.starts_with("deepseek-v3.1") |
| 441 | || model.starts_with("kimi-k2.6") |
| 442 | || model.starts_with("kimi-k2.5") |
| 443 | || model.starts_with("glm-") |
| 444 | } |
| 445 | |
| 446 | fn modelstudio_model_supports_preserve_thinking(model: &str) -> bool { |
| 447 | let model = model.trim().to_ascii_lowercase(); |
| 448 | model.starts_with("qwen3.7-max") |
| 449 | || model.starts_with("qwen3.7-plus") |
| 450 | || model.starts_with("qwen3.6-max-preview") |
| 451 | || model.starts_with("qwen3.6-plus") |
| 452 | || model.starts_with("qwen3.6-flash") |
| 453 | || model.starts_with("kimi-k2.6") |
| 454 | || model.starts_with("kimi-k2.7-code") |
| 455 | } |
| 456 | |
| 457 | fn modelstudio_model_supports_reasoning_effort(model: &str) -> bool { |
| 458 | let model = model.trim().to_ascii_lowercase(); |
| 459 | model.starts_with("deepseek-v4") || matches!(model.as_str(), "glm-5.2" | "glm-5.1" | "glm-5") |
| 460 | } |
| 461 | |
| 462 | fn modelstudio_reasoning_effort_for_model(effort: &str) -> Option<&'static str> { |
| 463 | match effort.trim().to_ascii_lowercase().as_str() { |
| 464 | // Model Studio documents low and medium as aliases for high. |
| 465 | "minimal" | "low" | "medium" | "mid" | "high" | "" => Some("high"), |
| 466 | "xhigh" | "max" | "highest" | "ultracode" => Some("max"), |
| 467 | _ => None, |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | /// Final reasoning-control pass shared by streaming and non-streaming Chat |
| 472 | /// Completions requests. Route-specific shapers run after the generic provider |
| 473 | /// layer so they can remove fields that are invalid for their exact endpoint. |
| 474 | pub(super) fn apply_route_reasoning_controls( |
| 475 | body: &mut Value, |
| 476 | provider: ApiProvider, |
| 477 | base_url: &str, |
| 478 | model: &str, |
| 479 | effort: Option<&str>, |
| 480 | ) { |
| 481 | apply_reasoning_effort(body, effort, provider); |
| 482 | apply_modelstudio_route_reasoning_controls(body, provider, base_url, model, effort); |
| 483 | apply_minimax_route_reasoning_controls(body, provider, base_url, model, effort); |
| 484 | apply_inkling_reasoning_effort(body, provider, model, effort); |
| 485 | apply_openai_reasoning_effort(body, provider, model, effort); |
| 486 | apply_direct_moonshot_k3_reasoning_effort(body, provider, base_url, model, effort); |
| 487 | apply_kimi_code_k3_reasoning_effort(body, provider, base_url, model, effort); |
| 488 | apply_zai_route_reasoning_controls(body, provider, base_url, model, effort); |
| 489 | } |
| 490 | |
| 491 | /// The direct K3 Chat Completions schema exposes fixed sampling behavior and |
| 492 | /// omits `temperature` and `top_p`. Strip legacy/generic values only from the |
| 493 | /// exact first-party route so compatible gateways keep their own contract. |
| 494 | /// Source: <https://platform.kimi.ai/docs/guide/kimi-k3-quickstart> (verified 2026-07-20). |
| 495 | fn apply_direct_moonshot_k3_fixed_sampling( |
| 496 | body: &mut Value, |
| 497 | provider: ApiProvider, |
| 498 | base_url: &str, |
| 499 | model: &str, |
| 500 | ) { |
| 501 | if !is_exact_direct_moonshot_k3_route(provider, base_url, model) { |
| 502 | return; |
| 503 | } |
| 504 | if let Some(object) = body.as_object_mut() { |
| 505 | object.remove("temperature"); |
| 506 | object.remove("top_p"); |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | fn openai_compatible_reasoning_effort( |
| 511 | effort: &str, |
| 512 | supports_max: bool, |
| 513 | supports_minimal: bool, |
| 514 | ) -> Option<&'static str> { |
| 515 | match effort.trim().to_ascii_lowercase().as_str() { |
| 516 | "off" | "disabled" | "none" | "false" => Some("none"), |
| 517 | "minimal" if supports_minimal => Some("minimal"), |
| 518 | "minimal" => Some("low"), |
| 519 | "low" => Some("low"), |
| 520 | "medium" | "mid" | "" => Some("medium"), |
| 521 | "high" => Some("high"), |
| 522 | "xhigh" => Some("xhigh"), |
| 523 | "max" | "highest" | "ultracode" if supports_max => Some("max"), |
| 524 | "max" | "highest" | "ultracode" => Some("xhigh"), |
| 525 | _ => None, |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | fn mirror_minimax_reasoning_details_for_messages(messages: &mut [Value]) { |
| 530 | for message in messages { |
| 531 | if message.get("role").and_then(Value::as_str) != Some("assistant") { |
| 532 | continue; |
| 533 | } |
| 534 | if message.get("reasoning_details").is_some() { |
| 535 | continue; |
| 536 | } |
| 537 | let Some(reasoning) = message |
| 538 | .get("reasoning_content") |
| 539 | .and_then(Value::as_str) |
| 540 | .filter(|reasoning| !reasoning.trim().is_empty()) |
| 541 | .map(str::to_string) |
| 542 | else { |
| 543 | continue; |
| 544 | }; |
| 545 | message["reasoning_details"] = json!([ |
| 546 | { |
| 547 | "type": "text", |
| 548 | "text": reasoning, |
| 549 | } |
| 550 | ]); |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | fn mirror_minimax_reasoning_details_for_body(body: &mut Value, provider: ApiProvider) { |
| 555 | if provider != ApiProvider::Minimax { |
| 556 | return; |
| 557 | } |
| 558 | let Some(messages) = body.get_mut("messages").and_then(Value::as_array_mut) else { |
| 559 | return; |
| 560 | }; |
| 561 | mirror_minimax_reasoning_details_for_messages(messages); |
| 562 | } |
| 563 | |
| 564 | fn sanitize_moonshot_chat_tools(chat_tools: &mut [Value]) -> Result<()> { |
| 565 | for tool in chat_tools { |
| 566 | let Some(function) = tool |
| 567 | .as_object_mut() |
| 568 | .and_then(|tool| tool.get_mut("function")) |
| 569 | .and_then(Value::as_object_mut) |
| 570 | else { |
| 571 | continue; |
| 572 | }; |
| 573 | let Some(parameters) = function.get_mut("parameters") else { |
| 574 | continue; |
| 575 | }; |
| 576 | let note = crate::tools::schema_sanitize::sanitize_for_kimi_parameters(parameters) |
| 577 | .map_err(|error| { |
| 578 | anyhow::anyhow!( |
| 579 | "Moonshot function parameters failed safe compatibility validation: {error}" |
| 580 | ) |
| 581 | })?; |
| 582 | if let Some(note) = note { |
| 583 | let description = function |
| 584 | .get("description") |
| 585 | .and_then(Value::as_str) |
| 586 | .unwrap_or_default(); |
| 587 | let description = if description.is_empty() { |
| 588 | note |
| 589 | } else { |
| 590 | format!("{description} {note}") |
| 591 | }; |
| 592 | function.insert("description".to_string(), json!(description)); |
| 593 | } |
| 594 | } |
| 595 | Ok(()) |
| 596 | } |
| 597 | |
| 598 | /// The final Chat Completions wire payload for one request. |
| 599 | /// |
| 600 | /// Produced by [`build_chat_wire_body`], the single place where a |
| 601 | /// `MessageRequest` becomes Chat-shaped JSON. It is reached only through |
| 602 | /// [`super::DeepSeekClient::prepare_outbound_request`], the shared outbound |
| 603 | /// seam that the blocking transport, the streaming transport, and |
| 604 | /// `/preview-request` all consume — so a preview cannot drift from what would |
| 605 | /// be sent, and no other dialect is projected through this builder. |
| 606 | /// |
| 607 | /// Seam concept harvested from PR #1099 (`build_sanitized_chat_completion_body`) |
| 608 | /// by TaoMu (GTC2080); re-implemented against the current client shape. |
| 609 | pub(crate) struct ChatWireBody { |
| 610 | /// Provider-shaped JSON body, post-sanitizers. |
| 611 | pub(crate) body: Value, |
| 612 | /// The model id actually placed on the wire (may differ from the |
| 613 | /// configured/display model for routed providers). |
| 614 | pub(crate) model: String, |
| 615 | /// Tokens re-sent because thinking-mode replay substituted |
| 616 | /// `reasoning_content`. Only computed on the streaming path, which is the |
| 617 | /// only path that runs the replay sanitizer today. |
| 618 | pub(crate) replay_input_tokens: Option<u32>, |
| 619 | } |
| 620 | |
| 621 | /// Build the Chat Completions wire body for `request`. |
| 622 | /// |
| 623 | /// `stream` selects the streaming shape (`stream` + `stream_options`) and, to |
| 624 | /// preserve historical behavior exactly, also gates the thinking-mode replay |
| 625 | /// sanitizer — the blocking path has never run it. |
| 626 | pub(crate) fn build_chat_wire_body( |
| 627 | request: &MessageRequest, |
| 628 | provider: ApiProvider, |
| 629 | base_url: &str, |
| 630 | stream: bool, |
| 631 | ) -> Result<ChatWireBody> { |
| 632 | let messages = |
| 633 | build_chat_messages_for_request_and_provider_and_route(request, provider, base_url); |
| 634 | let model = { |
| 635 | let wire = wire_model_for_provider_route(provider, base_url, &request.model); |
| 636 | crate::models::effective_muse_wire_id(&wire).to_string() |
| 637 | }; |
| 638 | let mut body = if stream { |
| 639 | json!({ |
| 640 | "model": model.clone(), |
| 641 | "messages": messages, |
| 642 | "max_tokens": request.max_tokens, |
| 643 | "stream": true, |
| 644 | "stream_options": { |
| 645 | "include_usage": true |
| 646 | }, |
| 647 | }) |
| 648 | } else { |
| 649 | json!({ |
| 650 | "model": model.clone(), |
| 651 | "messages": messages, |
| 652 | "max_tokens": request.max_tokens, |
| 653 | }) |
| 654 | }; |
| 655 | apply_provider_token_limit(&mut body, provider, base_url, &model, request.max_tokens); |
| 656 | |
| 657 | if let Some(temperature) = request.temperature { |
| 658 | body["temperature"] = json!(temperature); |
| 659 | } |
| 660 | if let Some(top_p) = request.top_p { |
| 661 | body["top_p"] = json!(top_p); |
| 662 | } |
| 663 | if let Some(tools) = request.tools.as_ref() { |
| 664 | let mut chat_tools: Vec<_> = tools |
| 665 | .iter() |
| 666 | .map(|tool| tool_to_chat_for_base_url(tool, base_url)) |
| 667 | .collect(); |
| 668 | // Moonshot function parameters must end at a plain object root. |
| 669 | // Flatten root composition, preserve valid nested anyOf, and fail |
| 670 | // closed before transport when an internal root ref is unsafe. |
| 671 | if matches!(provider, crate::config::ApiProvider::Moonshot) { |
| 672 | sanitize_moonshot_chat_tools(&mut chat_tools)?; |
| 673 | } |
| 674 | // xAI rejects a parameters root that is not a plain object schema |
| 675 | // (e.g. apply_patch's root `oneOf` required-groups) with a 400. |
| 676 | if matches!(provider, crate::config::ApiProvider::Xai) { |
| 677 | for t in &mut chat_tools { |
| 678 | let Some(function) = t |
| 679 | .as_object_mut() |
| 680 | .and_then(|t| t.get_mut("function")) |
| 681 | .and_then(|f| f.as_object_mut()) |
| 682 | else { |
| 683 | continue; |
| 684 | }; |
| 685 | let note = function.get_mut("parameters").and_then(|parameters| { |
| 686 | crate::tools::schema_sanitize::sanitize_for_xai_parameters(parameters) |
| 687 | }); |
| 688 | if let Some(note) = note |
| 689 | && let Some(description) = function |
| 690 | .get_mut("description") |
| 691 | .and_then(|d| d.as_str().map(str::to_string)) |
| 692 | { |
| 693 | function.insert( |
| 694 | "description".to_string(), |
| 695 | json!(format!("{description} {note}")), |
| 696 | ); |
| 697 | } |
| 698 | } |
| 699 | } |
| 700 | body["tools"] = json!(chat_tools); |
| 701 | } |
| 702 | if should_send_tool_choice_for_chat(provider, request.reasoning_effort.as_deref()) |
| 703 | && let Some(choice) = request.tool_choice.as_ref() |
| 704 | && let Some(mapped) = map_tool_choice_for_chat(choice) |
| 705 | { |
| 706 | body["tool_choice"] = mapped; |
| 707 | } |
| 708 | apply_route_reasoning_controls( |
| 709 | &mut body, |
| 710 | provider, |
| 711 | base_url, |
| 712 | &model, |
| 713 | request.reasoning_effort.as_deref(), |
| 714 | ); |
| 715 | apply_direct_moonshot_k3_fixed_sampling(&mut body, provider, base_url, &model); |
| 716 | |
| 717 | // Bulletproof final sanitizer: walk the wire payload and force |
| 718 | // `reasoning_content` onto any assistant message that has tool_calls |
| 719 | // but no reasoning_content. DeepSeek's thinking-mode API rejects |
| 720 | // such messages with a 400. This is the last line of defense after |
| 721 | // engine-side and build-side substitution; if either upstream path |
| 722 | // misses a case (e.g. a session restored from disk, a sub-agent |
| 723 | // adding messages directly, or a cached prefix mismatch), this pass |
| 724 | // still produces a valid request. |
| 725 | let replay_input_tokens = if stream { |
| 726 | sanitize_thinking_mode_messages_for_route( |
| 727 | &mut body, |
| 728 | &model, |
| 729 | request.reasoning_effort.as_deref(), |
| 730 | provider, |
| 731 | base_url, |
| 732 | ) |
| 733 | } else { |
| 734 | None |
| 735 | }; |
| 736 | mirror_minimax_reasoning_details_for_body(&mut body, provider); |
| 737 | |
| 738 | Ok(ChatWireBody { |
| 739 | body, |
| 740 | model, |
| 741 | replay_input_tokens, |
| 742 | }) |
| 743 | } |
| 744 | |
| 745 | impl DeepSeekClient { |
| 746 | pub(super) async fn create_message_chat( |
| 747 | &self, |
| 748 | prepared: &super::PreparedOutboundRequest, |
| 749 | cacheable: bool, |
| 750 | ) -> Result<MessageResponse> { |
| 751 | let body = &prepared.body; |
| 752 | |
| 753 | let response_cache_key = if cacheable { |
| 754 | let wire_body = |
| 755 | serde_json::to_vec(&body).context("Failed to serialize Chat API cache key")?; |
| 756 | let key = crate::llm_response_cache::ResponseCache::make_key( |
| 757 | self.api_provider.as_str(), |
| 758 | &self.base_url, |
| 759 | self.path_suffix.as_deref(), |
| 760 | &self.api_key, |
| 761 | &wire_body, |
| 762 | ); |
| 763 | if let Some(cached) = crate::llm_response_cache::response_cache().get(&key) { |
| 764 | return Ok(cached); |
| 765 | } |
| 766 | Some(key) |
| 767 | } else { |
| 768 | None |
| 769 | }; |
| 770 | |
| 771 | // The endpoint was resolved by the shared seam alongside the body, so |
| 772 | // a route-shape decision (e.g. DeepSeek's strict-tools `/beta` path) |
| 773 | // cannot be made twice with two different answers. |
| 774 | let url = prepared.endpoint.url.as_str(); |
| 775 | let response = self.send_json_with_retry(url, body).await?; |
| 776 | |
| 777 | let status = response.status(); |
| 778 | crate::client::record_provider_response(self.api_provider, status.as_u16()); |
| 779 | if !status.is_success() { |
| 780 | let raw_error_text = bounded_error_text(response, ERROR_BODY_MAX_BYTES).await; |
| 781 | let error_text = sanitize_http_error_body( |
| 782 | Some(self.api_provider.display_name()), |
| 783 | status.as_u16(), |
| 784 | &raw_error_text, |
| 785 | ); |
| 786 | anyhow::bail!("Failed to call DeepSeek Chat API: HTTP {status}: {error_text}"); |
| 787 | } |
| 788 | |
| 789 | let response_text = response |
| 790 | .text() |
| 791 | .await |
| 792 | .context("Failed to read Chat API response body")?; |
| 793 | let value: Value = |
| 794 | serde_json::from_str(&response_text).context("Failed to parse Chat API JSON")?; |
| 795 | let parsed = parse_chat_message(&value)?; |
| 796 | if let Some(key) = response_cache_key { |
| 797 | crate::llm_response_cache::response_cache().put(key, parsed.clone()); |
| 798 | } |
| 799 | Ok(parsed) |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | impl DeepSeekClient { |
| 804 | async fn open_chat_stream_response( |
| 805 | &self, |
| 806 | url: &str, |
| 807 | body: &Value, |
| 808 | ) -> Result<(reqwest::Response, Duration)> { |
| 809 | let open_req = super::stream_entry::StreamOpenRequest::new( |
| 810 | stream_open_timeout(), |
| 811 | self.stream_idle_timeout, |
| 812 | ); |
| 813 | let idle_timeout = open_req.idle_timeout; |
| 814 | let response = super::stream_entry::open_sse_response(&open_req, |policy| async move { |
| 815 | match policy { |
| 816 | // The prebuilt HTTP/1.1 twin carries the same default |
| 817 | // headers/auth; send once, without the JSON retry loop |
| 818 | // (matching the pre-seam H1-pin behavior). |
| 819 | super::stream_entry::StreamHttpPolicy::Http1Only => { |
| 820 | let client = super::stream_entry::client_for_policy( |
| 821 | &self.http_client, |
| 822 | self.http1_fallback_client(), |
| 823 | policy, |
| 824 | ); |
| 825 | Ok(client |
| 826 | .post(url) |
| 827 | .header(reqwest::header::CONTENT_TYPE, "application/json") |
| 828 | .json(body) |
| 829 | .send() |
| 830 | .await?) |
| 831 | } |
| 832 | super::stream_entry::StreamHttpPolicy::DualWithH1Fallback => { |
| 833 | self.send_json_with_retry(url, body).await |
| 834 | } |
| 835 | } |
| 836 | }) |
| 837 | .await?; |
| 838 | Ok((response, idle_timeout)) |
| 839 | } |
| 840 | |
| 841 | pub(super) async fn handle_chat_completion_stream( |
| 842 | &self, |
| 843 | prepared: super::PreparedOutboundRequest, |
| 844 | ) -> Result<StreamEventBox> { |
| 845 | // Try true SSE streaming via chat completions (widely supported). |
| 846 | // Body and endpoint both come from the shared prepared-request seam, |
| 847 | // so a preview or a non-stream call can never diverge from the |
| 848 | // streamed request. |
| 849 | let super::PreparedOutboundRequest { |
| 850 | body, |
| 851 | wire_model: model, |
| 852 | replay_input_tokens, |
| 853 | endpoint, |
| 854 | .. |
| 855 | } = prepared; |
| 856 | let url = endpoint.url; |
| 857 | |
| 858 | let (response, stream_idle_timeout) = self.open_chat_stream_response(&url, &body).await?; |
| 859 | |
| 860 | let status = response.status(); |
| 861 | crate::client::record_provider_response(self.api_provider, status.as_u16()); |
| 862 | if !status.is_success() { |
| 863 | let raw_error_text = bounded_error_text(response, ERROR_BODY_MAX_BYTES).await; |
| 864 | let error_text = sanitize_http_error_body( |
| 865 | Some(self.api_provider.display_name()), |
| 866 | status.as_u16(), |
| 867 | &raw_error_text, |
| 868 | ); |
| 869 | // If DeepSeek rejected for missing reasoning_content despite the |
| 870 | // sanitizer, dump the offending indices so we can diagnose where |
| 871 | // they came from on the next failure. |
| 872 | if error_text.contains("reasoning_content") { |
| 873 | log_thinking_mode_violations(&body); |
| 874 | } |
| 875 | anyhow::bail!("SSE stream request failed: HTTP {status}: {error_text}"); |
| 876 | } |
| 877 | |
| 878 | let api_provider = self.api_provider; |
| 879 | let base_url = self.base_url.clone(); |
| 880 | |
| 881 | // Capture transport-shape headers before we consume `response` into |
| 882 | // `bytes_stream()`. They are surfaced in the decode-error log path so |
| 883 | // we can tell HTTP/2 RST_STREAM from chunked-encoding corruption from |
| 884 | // gzip-compressor failure when investigating #103. |
| 885 | let response_headers = format_stream_headers(response.headers()); |
| 886 | let byte_stream = response.bytes_stream(); |
| 887 | let configured_reasoning_stream_style = self.reasoning_stream_style.clone(); |
| 888 | |
| 889 | let stream = async_stream::stream! { |
| 890 | use futures_util::StreamExt; |
| 891 | |
| 892 | // Emit a synthetic MessageStart |
| 893 | yield Ok(StreamEvent::MessageStart { |
| 894 | message: MessageResponse { |
| 895 | id: String::new(), |
| 896 | r#type: "message".to_string(), |
| 897 | role: "assistant".to_string(), |
| 898 | content: Vec::new(), |
| 899 | model: model.clone(), |
| 900 | stop_reason: None, |
| 901 | stop_sequence: None, |
| 902 | container: None, |
| 903 | usage: Usage { |
| 904 | input_tokens: 0, |
| 905 | output_tokens: 0, |
| 906 | ..Usage::default() |
| 907 | }, |
| 908 | }, |
| 909 | }); |
| 910 | |
| 911 | let mut line_buf = String::new(); |
| 912 | let mut byte_buf = acquire_stream_buffer(); |
| 913 | let mut content_index: u32 = 0; |
| 914 | let mut text_started = false; |
| 915 | let mut thinking_started = false; |
| 916 | let mut tool_indices: std::collections::HashMap<u32, u32> = std::collections::HashMap::new(); |
| 917 | let mut reasoning_detail_buffers: std::collections::HashMap<u32, String> = std::collections::HashMap::new(); |
| 918 | let mut inline_reasoning_tags = InlineReasoningTagState::default(); |
| 919 | let reasoning_stream_style = reasoning_stream_style_for_route( |
| 920 | api_provider, |
| 921 | &base_url, |
| 922 | &model, |
| 923 | configured_reasoning_stream_style.as_deref(), |
| 924 | ); |
| 925 | |
| 926 | let mut byte_stream = std::pin::pin!(byte_stream); |
| 927 | let idle = stream_idle_timeout; |
| 928 | |
| 929 | // Telemetry for #103 stream-decode diagnostics: bytes received |
| 930 | // since the start of this stream and last successful event time. |
| 931 | // Surfaces in the error log when reqwest yields a chunk error so |
| 932 | // we can tell HTTP/2 RST_STREAM from chunk-decode-failure from |
| 933 | // gzip-corruption when investigating a flaky session. |
| 934 | let stream_start = std::time::Instant::now(); |
| 935 | let mut last_event_at = std::time::Instant::now(); |
| 936 | let mut bytes_received: usize = 0; |
| 937 | // Set when a `[DONE]` sentinel was seen, so the post-loop flush does |
| 938 | // not re-process trailing post-DONE bytes. |
| 939 | let mut saw_done = false; |
| 940 | |
| 941 | 'stream: loop { |
| 942 | let chunk_result = match tokio_timeout(idle, byte_stream.next()).await { |
| 943 | Ok(Some(result)) => result, |
| 944 | Ok(None) => break, // Stream ended normally |
| 945 | Err(_elapsed) => { |
| 946 | yield Err(anyhow::anyhow!(stream_idle_timeout_message( |
| 947 | idle, |
| 948 | bytes_received, |
| 949 | stream_start.elapsed(), |
| 950 | last_event_at.elapsed(), |
| 951 | ))); |
| 952 | break; |
| 953 | } |
| 954 | }; |
| 955 | let chunk = match chunk_result { |
| 956 | Ok(bytes) => bytes, |
| 957 | Err(e) => { |
| 958 | // Walk the error source chain so reqwest's underlying |
| 959 | // hyper / h2 / io error is visible — without this the |
| 960 | // outer "error decoding response body" message tells |
| 961 | // us nothing about WHY the stream died. |
| 962 | let mut error_chain = format!("{e}"); |
| 963 | let mut current: Option<&(dyn std::error::Error + 'static)> = |
| 964 | std::error::Error::source(&e); |
| 965 | while let Some(source) = current { |
| 966 | error_chain.push_str(&format!(" -> {source}")); |
| 967 | current = std::error::Error::source(source); |
| 968 | } |
| 969 | crate::logging::warn(format!( |
| 970 | "Stream read error: {error_chain} \ |
| 971 | (elapsed: {}ms, bytes_received: {}, ms_since_last_event: {}, headers: {})", |
| 972 | stream_start.elapsed().as_millis(), |
| 973 | bytes_received, |
| 974 | last_event_at.elapsed().as_millis(), |
| 975 | response_headers, |
| 976 | )); |
| 977 | yield Err(anyhow::anyhow!("Stream read error: {e}")); |
| 978 | break; |
| 979 | } |
| 980 | }; |
| 981 | |
| 982 | bytes_received = bytes_received.saturating_add(chunk.len()); |
| 983 | last_event_at = std::time::Instant::now(); |
| 984 | byte_buf.extend_from_slice(&chunk); |
| 985 | |
| 986 | // Guard against unbounded buffer growth (e.g., malformed stream without newlines) |
| 987 | const MAX_SSE_BUF: usize = 10 * 1024 * 1024; // 10 MB |
| 988 | if byte_buf.len() > MAX_SSE_BUF { |
| 989 | yield Err(anyhow::anyhow!("SSE buffer exceeded {MAX_SSE_BUF} bytes — aborting stream")); |
| 990 | break; |
| 991 | } |
| 992 | |
| 993 | if byte_buf.len() > SSE_BACKPRESSURE_HIGH_WATERMARK { |
| 994 | tokio::time::sleep(Duration::from_millis(SSE_BACKPRESSURE_SLEEP_MS)).await; |
| 995 | } |
| 996 | |
| 997 | // Process complete SSE lines from the buffer |
| 998 | let mut lines_processed = 0usize; |
| 999 | while let Some(newline_pos) = byte_buf.iter().position(|&b| b == b'\n') { |
| 1000 | let mut end = newline_pos; |
| 1001 | if end > 0 && byte_buf[end - 1] == b'\r' { |
| 1002 | end -= 1; |
| 1003 | } |
| 1004 | let line = String::from_utf8_lossy(&byte_buf[..end]).into_owned(); |
| 1005 | byte_buf.drain(..newline_pos + 1); |
| 1006 | |
| 1007 | if line.is_empty() { |
| 1008 | // Empty line = event boundary, process accumulated data |
| 1009 | if !line_buf.is_empty() { |
| 1010 | let data = std::mem::take(&mut line_buf); |
| 1011 | match parse_sse_data_frame( |
| 1012 | &data, |
| 1013 | &mut content_index, |
| 1014 | &mut text_started, |
| 1015 | &mut thinking_started, |
| 1016 | &mut tool_indices, |
| 1017 | &mut reasoning_detail_buffers, |
| 1018 | &mut inline_reasoning_tags, |
| 1019 | reasoning_stream_style, |
| 1020 | ) { |
| 1021 | SseDataFrame::Done => { |
| 1022 | saw_done = true; |
| 1023 | break 'stream; |
| 1024 | } |
| 1025 | SseDataFrame::Events(events) => { |
| 1026 | for mut event in events { |
| 1027 | // Stamp the client-side replay-token estimate |
| 1028 | // onto the final usage so the UI can surface |
| 1029 | // it (#30). We compute it pre-request and |
| 1030 | // overlay it on the server-reported usage at |
| 1031 | // stream completion. |
| 1032 | if let Some(tokens) = replay_input_tokens |
| 1033 | && let StreamEvent::MessageDelta { |
| 1034 | usage: Some(usage), |
| 1035 | .. |
| 1036 | } = &mut event |
| 1037 | { |
| 1038 | usage.reasoning_replay_tokens = Some(tokens); |
| 1039 | } |
| 1040 | yield Ok(event); |
| 1041 | } |
| 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | continue; |
| 1046 | } |
| 1047 | |
| 1048 | if let Some(data) = super::extract_sse_data_value(&line) { |
| 1049 | // The SSE spec joins multiple `data:` fields within one |
| 1050 | // event with '\n'; concatenating with no separator would |
| 1051 | // yield `{…}{…}` and fail JSON parsing, silently dropping |
| 1052 | // the frame. |
| 1053 | if !line_buf.is_empty() { |
| 1054 | line_buf.push('\n'); |
| 1055 | } |
| 1056 | line_buf.push_str(data); |
| 1057 | } |
| 1058 | // Ignore other SSE fields (event:, id:, retry:) |
| 1059 | |
| 1060 | lines_processed = lines_processed.saturating_add(1); |
| 1061 | if lines_processed >= SSE_MAX_LINES_PER_CHUNK { |
| 1062 | // Yield backpressure relief to avoid starving downstream consumers. |
| 1063 | break; |
| 1064 | } |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | // Flush a final SSE frame that arrived without a terminating blank |
| 1069 | // line (the stream closed straight after the last `data:` line, or |
| 1070 | // that line lacked a trailing newline). Without this the final delta |
| 1071 | // — last tokens, finish_reason, and usage — is silently dropped. |
| 1072 | // Skipped after `[DONE]`, whose frame was already processed. |
| 1073 | if !saw_done { |
| 1074 | if !byte_buf.is_empty() { |
| 1075 | let mut end = byte_buf.len(); |
| 1076 | if end > 0 && byte_buf[end - 1] == b'\r' { |
| 1077 | end -= 1; |
| 1078 | } |
| 1079 | let line = String::from_utf8_lossy(&byte_buf[..end]).into_owned(); |
| 1080 | if let Some(data) = super::extract_sse_data_value(&line) { |
| 1081 | if !line_buf.is_empty() { |
| 1082 | line_buf.push('\n'); |
| 1083 | } |
| 1084 | line_buf.push_str(data); |
| 1085 | } |
| 1086 | } |
| 1087 | if !line_buf.is_empty() { |
| 1088 | let data = std::mem::take(&mut line_buf); |
| 1089 | if let SseDataFrame::Events(events) = parse_sse_data_frame( |
| 1090 | &data, |
| 1091 | &mut content_index, |
| 1092 | &mut text_started, |
| 1093 | &mut thinking_started, |
| 1094 | &mut tool_indices, |
| 1095 | &mut reasoning_detail_buffers, |
| 1096 | &mut inline_reasoning_tags, |
| 1097 | reasoning_stream_style, |
| 1098 | ) { |
| 1099 | for mut event in events { |
| 1100 | if let Some(tokens) = replay_input_tokens |
| 1101 | && let StreamEvent::MessageDelta { |
| 1102 | usage: Some(usage), .. |
| 1103 | } = &mut event |
| 1104 | { |
| 1105 | usage.reasoning_replay_tokens = Some(tokens); |
| 1106 | } |
| 1107 | yield Ok(event); |
| 1108 | } |
| 1109 | } |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | // Close any open blocks — content_index points to the |
| 1114 | // currently active open block (it is only incremented |
| 1115 | // *after* a block is closed, not when opened). |
| 1116 | if thinking_started || text_started { |
| 1117 | yield Ok(StreamEvent::ContentBlockStop { index: content_index }); |
| 1118 | } |
| 1119 | |
| 1120 | release_stream_buffer(byte_buf); |
| 1121 | yield Ok(StreamEvent::MessageStop); |
| 1122 | }; |
| 1123 | |
| 1124 | Ok(Pin::from(Box::new(stream) |
| 1125 | as Box< |
| 1126 | dyn futures_util::Stream<Item = Result<StreamEvent>> + Send, |
| 1127 | >)) |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | // === Chat Completions Helpers === |
| 1132 | |
| 1133 | #[cfg(test)] |
| 1134 | pub(super) fn build_chat_messages( |
| 1135 | system: Option<&SystemPrompt>, |
| 1136 | messages: &[Message], |
| 1137 | model: &str, |
| 1138 | ) -> Vec<Value> { |
| 1139 | build_chat_messages_with_reasoning( |
| 1140 | system, |
| 1141 | messages, |
| 1142 | model, |
| 1143 | should_replay_reasoning_content(model, None), |
| 1144 | false, |
| 1145 | ) |
| 1146 | } |
| 1147 | |
| 1148 | #[cfg(test)] |
| 1149 | pub(super) fn build_chat_messages_for_request(request: &MessageRequest) -> Vec<Value> { |
| 1150 | PromptBuilder::for_request(request).build() |
| 1151 | } |
| 1152 | |
| 1153 | #[cfg(test)] |
| 1154 | pub(super) fn build_chat_messages_for_request_and_provider( |
| 1155 | request: &MessageRequest, |
| 1156 | provider: ApiProvider, |
| 1157 | ) -> Vec<Value> { |
| 1158 | build_chat_messages_for_request_and_provider_and_route(request, provider, "") |
| 1159 | } |
| 1160 | |
| 1161 | /// Build a wire prompt for one fully resolved provider route. |
| 1162 | /// |
| 1163 | /// Most provider behavior is keyed only by the provider kind and model. Kimi |
| 1164 | /// Code K3 is deliberately narrower: the bare `k3` model owns reasoning |
| 1165 | /// replay only on its official membership-plan endpoint, so callers that have |
| 1166 | /// a concrete base URL must retain it through prompt construction. |
| 1167 | pub(super) fn build_chat_messages_for_request_and_provider_and_route( |
| 1168 | request: &MessageRequest, |
| 1169 | provider: ApiProvider, |
| 1170 | base_url: &str, |
| 1171 | ) -> Vec<Value> { |
| 1172 | PromptBuilder::for_request(request).build_for_provider_and_route(provider, base_url) |
| 1173 | } |
| 1174 | |
| 1175 | pub(crate) fn inspect_prompt_for_request(request: &MessageRequest) -> PromptInspection { |
| 1176 | PromptBuilder::for_request(request).inspect() |
| 1177 | } |
| 1178 | |
| 1179 | pub(crate) fn build_cache_warmup_request(request: &MessageRequest) -> MessageRequest { |
| 1180 | PromptBuilder::for_request(request).build_cache_warmup_request() |
| 1181 | } |
| 1182 | |
| 1183 | struct PromptBuilder<'a> { |
| 1184 | system: Option<&'a SystemPrompt>, |
| 1185 | messages: &'a [Message], |
| 1186 | tools: Option<&'a [Tool]>, |
| 1187 | model: &'a str, |
| 1188 | reasoning_effort: Option<&'a str>, |
| 1189 | } |
| 1190 | |
| 1191 | impl<'a> PromptBuilder<'a> { |
| 1192 | fn for_request(request: &'a MessageRequest) -> Self { |
| 1193 | Self { |
| 1194 | system: request.system.as_ref(), |
| 1195 | messages: &request.messages, |
| 1196 | tools: request.tools.as_deref(), |
| 1197 | model: &request.model, |
| 1198 | reasoning_effort: request.reasoning_effort.as_deref(), |
| 1199 | } |
| 1200 | } |
| 1201 | |
| 1202 | #[cfg(test)] |
| 1203 | fn build(self) -> Vec<Value> { |
| 1204 | build_chat_messages_with_reasoning( |
| 1205 | self.system, |
| 1206 | self.messages, |
| 1207 | self.model, |
| 1208 | should_replay_reasoning_content(self.model, self.reasoning_effort), |
| 1209 | false, |
| 1210 | ) |
| 1211 | } |
| 1212 | |
| 1213 | fn build_for_provider_and_route(self, provider: ApiProvider, base_url: &str) -> Vec<Value> { |
| 1214 | let mut messages = build_chat_messages_with_reasoning( |
| 1215 | self.system, |
| 1216 | self.messages, |
| 1217 | self.model, |
| 1218 | should_replay_reasoning_content_for_provider_on_route( |
| 1219 | provider, |
| 1220 | base_url, |
| 1221 | self.model, |
| 1222 | self.reasoning_effort, |
| 1223 | ), |
| 1224 | false, |
| 1225 | ); |
| 1226 | dump_system_prompt_if_requested(&messages); |
| 1227 | if provider == ApiProvider::Arcee { |
| 1228 | apply_arcee_waf_safe_message_encoding(&mut messages); |
| 1229 | } |
| 1230 | if provider == ApiProvider::Minimax { |
| 1231 | mirror_minimax_reasoning_details_for_messages(&mut messages); |
| 1232 | } |
| 1233 | messages |
| 1234 | } |
| 1235 | |
| 1236 | fn inspect(self) -> PromptInspection { |
| 1237 | let messages = build_chat_messages_with_reasoning( |
| 1238 | self.system, |
| 1239 | self.messages, |
| 1240 | self.model, |
| 1241 | should_replay_reasoning_content(self.model, self.reasoning_effort), |
| 1242 | true, |
| 1243 | ); |
| 1244 | inspect_wire_request(self.tools, &messages) |
| 1245 | } |
| 1246 | |
| 1247 | fn build_cache_warmup_request(self) -> MessageRequest { |
| 1248 | let system = stable_system_prompt(self.system); |
| 1249 | let mut messages = stable_history_messages(self.messages); |
| 1250 | let tools = self |
| 1251 | .tools |
| 1252 | .filter(|tools| !tools.is_empty()) |
| 1253 | .map(<[Tool]>::to_vec); |
| 1254 | let tool_choice = tools.as_ref().map(|_| json!("none")); |
| 1255 | messages.push(Message { |
| 1256 | role: "user".to_string(), |
| 1257 | content: vec![ContentBlock::Text { |
| 1258 | text: CACHE_WARMUP_USER_TAIL.to_string(), |
| 1259 | cache_control: None, |
| 1260 | }], |
| 1261 | }); |
| 1262 | |
| 1263 | MessageRequest { |
| 1264 | model: self.model.to_string(), |
| 1265 | messages, |
| 1266 | max_tokens: 8, |
| 1267 | system, |
| 1268 | tools, |
| 1269 | tool_choice, |
| 1270 | metadata: None, |
| 1271 | thinking: None, |
| 1272 | reasoning_effort: self.reasoning_effort.map(str::to_string), |
| 1273 | stream: None, |
| 1274 | temperature: Some(0.0), |
| 1275 | top_p: None, |
| 1276 | } |
| 1277 | } |
| 1278 | } |
| 1279 | |
| 1280 | const SYSTEM_PROMPT_DUMP_ENV: &str = "CODEWHALE_DUMP_SYSTEM_PROMPT"; |
| 1281 | const SYSTEM_PROMPT_DUMP_BEGIN: &str = "<<<CODEWHALE_SYSTEM_PROMPT_BEGIN>>>"; |
| 1282 | const SYSTEM_PROMPT_DUMP_END: &str = "<<<CODEWHALE_SYSTEM_PROMPT_END>>>"; |
| 1283 | const ARCEE_WAF_TEXT_SPLIT_TRIGGERS: &[(&str, &str, &str)] = &[("python -c", "python ", "-c")]; |
| 1284 | |
| 1285 | fn dump_system_prompt_if_requested(messages: &[Value]) { |
| 1286 | let Ok(flag) = std::env::var(SYSTEM_PROMPT_DUMP_ENV) else { |
| 1287 | return; |
| 1288 | }; |
| 1289 | if !matches!(flag.trim(), "1" | "true" | "TRUE" | "yes" | "YES") { |
| 1290 | return; |
| 1291 | } |
| 1292 | let Some(prompt) = messages.iter().find_map(system_message_text) else { |
| 1293 | return; |
| 1294 | }; |
| 1295 | let mut stderr = std::io::stderr().lock(); |
| 1296 | let _ = writeln!(stderr, "{SYSTEM_PROMPT_DUMP_BEGIN}"); |
| 1297 | let _ = writeln!(stderr, "{prompt}"); |
| 1298 | let _ = writeln!(stderr, "{SYSTEM_PROMPT_DUMP_END}"); |
| 1299 | } |
| 1300 | |
| 1301 | fn system_message_text(message: &Value) -> Option<String> { |
| 1302 | if message.get("role").and_then(Value::as_str) != Some("system") { |
| 1303 | return None; |
| 1304 | } |
| 1305 | match message.get("content")? { |
| 1306 | Value::String(text) => Some(text.clone()), |
| 1307 | Value::Array(parts) => { |
| 1308 | let text = parts |
| 1309 | .iter() |
| 1310 | .filter_map(|part| part.get("text").and_then(Value::as_str)) |
| 1311 | .collect::<Vec<_>>() |
| 1312 | .join(""); |
| 1313 | (!text.is_empty()).then_some(text) |
| 1314 | } |
| 1315 | _ => None, |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | fn apply_arcee_waf_safe_message_encoding(messages: &mut [Value]) { |
| 1320 | for message in messages { |
| 1321 | if message.get("role").and_then(Value::as_str) != Some("system") { |
| 1322 | continue; |
| 1323 | } |
| 1324 | let Some(content) = message.get("content").and_then(Value::as_str) else { |
| 1325 | continue; |
| 1326 | }; |
| 1327 | let Some(parts) = arcee_waf_safe_text_parts(content) else { |
| 1328 | continue; |
| 1329 | }; |
| 1330 | message["content"] = json!(parts); |
| 1331 | } |
| 1332 | } |
| 1333 | |
| 1334 | fn arcee_waf_safe_text_parts(content: &str) -> Option<Vec<Value>> { |
| 1335 | let mut parts = Vec::new(); |
| 1336 | let mut cursor = 0usize; |
| 1337 | let mut split_any = false; |
| 1338 | |
| 1339 | while cursor < content.len() { |
| 1340 | let Some((trigger_start, trigger, left, right)) = next_arcee_waf_trigger(content, cursor) |
| 1341 | else { |
| 1342 | push_text_part(&mut parts, &content[cursor..]); |
| 1343 | break; |
| 1344 | }; |
| 1345 | |
| 1346 | push_text_part(&mut parts, &content[cursor..trigger_start]); |
| 1347 | push_text_part(&mut parts, left); |
| 1348 | push_text_part(&mut parts, right); |
| 1349 | cursor = trigger_start + trigger.len(); |
| 1350 | split_any = true; |
| 1351 | } |
| 1352 | |
| 1353 | split_any.then_some(parts) |
| 1354 | } |
| 1355 | |
| 1356 | fn next_arcee_waf_trigger(content: &str, cursor: usize) -> Option<(usize, &str, &str, &str)> { |
| 1357 | ARCEE_WAF_TEXT_SPLIT_TRIGGERS |
| 1358 | .iter() |
| 1359 | .filter_map(|(trigger, left, right)| { |
| 1360 | content[cursor..] |
| 1361 | .find(trigger) |
| 1362 | .map(|offset| (cursor + offset, *trigger, *left, *right)) |
| 1363 | }) |
| 1364 | .min_by_key(|(start, _, _, _)| *start) |
| 1365 | } |
| 1366 | |
| 1367 | fn push_text_part(parts: &mut Vec<Value>, text: &str) { |
| 1368 | if !text.is_empty() { |
| 1369 | parts.push(json!({ |
| 1370 | "type": "text", |
| 1371 | "text": text, |
| 1372 | })); |
| 1373 | } |
| 1374 | } |
| 1375 | |
| 1376 | pub(crate) const CACHE_WARMUP_USER_TAIL: &str = "请只回复 OK"; |
| 1377 | const TOOL_RESULT_SENT_CHAR_BUDGET: usize = 12_000; |
| 1378 | const TOOL_RESULT_HEAD_CHARS: usize = 4_000; |
| 1379 | const TOOL_RESULT_TAIL_CHARS: usize = 4_000; |
| 1380 | /// Tool results shorter than this stay inline even when repeated. The |
| 1381 | /// extra prompt bytes are cheaper than adding an earlier-message reference |
| 1382 | /// for tiny command outputs. |
| 1383 | const TOOL_RESULT_DEDUP_MIN_CHARS: usize = 1_024; |
| 1384 | |
| 1385 | #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] |
| 1386 | pub(crate) struct PromptInspection { |
| 1387 | pub base_static_prefix_hash: String, |
| 1388 | pub full_request_prefix_hash: String, |
| 1389 | /// Hash of the rendered tool catalog JSON, or empty when no tools were supplied. |
| 1390 | pub tool_catalog_hash: String, |
| 1391 | pub layers: Vec<PromptLayerInspection>, |
| 1392 | } |
| 1393 | |
| 1394 | /// Identifies the stable prefix that a cache warmup primes. |
| 1395 | #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] |
| 1396 | pub(crate) struct CacheWarmupKey { |
| 1397 | pub provider: String, |
| 1398 | pub model: String, |
| 1399 | pub base_url: String, |
| 1400 | pub static_prefix_hash: String, |
| 1401 | pub tool_catalog_hash: String, |
| 1402 | pub project_pack_hash: String, |
| 1403 | pub skills_hash: String, |
| 1404 | } |
| 1405 | |
| 1406 | impl CacheWarmupKey { |
| 1407 | pub(crate) fn from_inspection( |
| 1408 | provider: &str, |
| 1409 | model: &str, |
| 1410 | base_url: &str, |
| 1411 | inspection: &PromptInspection, |
| 1412 | ) -> Self { |
| 1413 | Self { |
| 1414 | provider: provider.to_string(), |
| 1415 | model: model.to_string(), |
| 1416 | base_url: base_url.to_string(), |
| 1417 | static_prefix_hash: inspection.base_static_prefix_hash.clone(), |
| 1418 | tool_catalog_hash: inspection.tool_catalog_hash.clone(), |
| 1419 | project_pack_hash: layer_hash(inspection, "Project context pack"), |
| 1420 | skills_hash: layer_hash(inspection, "Skills"), |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | pub(crate) fn hash_short(&self) -> String { |
| 1425 | let json = serde_json::to_string(self).unwrap_or_default(); |
| 1426 | let hash = sha256_hex(json.as_bytes()); |
| 1427 | hash[..hash.len().min(12)].to_string() |
| 1428 | } |
| 1429 | } |
| 1430 | |
| 1431 | fn layer_hash(inspection: &PromptInspection, name: &str) -> String { |
| 1432 | inspection |
| 1433 | .layers |
| 1434 | .iter() |
| 1435 | .find(|layer| layer.name == name) |
| 1436 | .map(|layer| layer.sha256.clone()) |
| 1437 | .unwrap_or_default() |
| 1438 | } |
| 1439 | |
| 1440 | #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] |
| 1441 | pub(crate) struct PromptLayerInspection { |
| 1442 | pub name: String, |
| 1443 | pub stability: PromptLayerStability, |
| 1444 | pub char_len: usize, |
| 1445 | pub byte_len: usize, |
| 1446 | /// Rough token estimate for quick before/after cache-hit reports. |
| 1447 | pub token_estimate: usize, |
| 1448 | pub sha256: String, |
| 1449 | pub tool_result: Option<ToolResultInspection>, |
| 1450 | pub turn_meta: Option<TurnMetaInspection>, |
| 1451 | } |
| 1452 | |
| 1453 | #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] |
| 1454 | pub(crate) struct ToolResultInspection { |
| 1455 | pub original_chars: usize, |
| 1456 | pub sent_chars: usize, |
| 1457 | pub truncated: bool, |
| 1458 | pub deduplicated: bool, |
| 1459 | } |
| 1460 | |
| 1461 | #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] |
| 1462 | pub(crate) struct TurnMetaInspection { |
| 1463 | pub original_chars: usize, |
| 1464 | pub sent_chars: usize, |
| 1465 | pub deduplicated: bool, |
| 1466 | pub sha256: String, |
| 1467 | } |
| 1468 | |
| 1469 | #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)] |
| 1470 | pub(crate) enum PromptLayerStability { |
| 1471 | Static, |
| 1472 | History, |
| 1473 | Dynamic, |
| 1474 | } |
| 1475 | |
| 1476 | impl PromptLayerStability { |
| 1477 | pub(crate) fn label(self) -> &'static str { |
| 1478 | match self { |
| 1479 | Self::Static => "static", |
| 1480 | Self::History => "history", |
| 1481 | Self::Dynamic => "dynamic", |
| 1482 | } |
| 1483 | } |
| 1484 | } |
| 1485 | |
| 1486 | fn inspect_wire_request(tools: Option<&[Tool]>, messages: &[Value]) -> PromptInspection { |
| 1487 | let mut layers = Vec::new(); |
| 1488 | let mut base_static_prefix_parts = Vec::new(); |
| 1489 | let mut full_request_prefix_parts = Vec::new(); |
| 1490 | let mut tool_catalog_hash = String::new(); |
| 1491 | let mut start_index = 0; |
| 1492 | |
| 1493 | if let Some(message) = messages.first() { |
| 1494 | let role = message |
| 1495 | .get("role") |
| 1496 | .and_then(Value::as_str) |
| 1497 | .unwrap_or("unknown"); |
| 1498 | let content = message_content_for_inspect(message); |
| 1499 | if role == "system" { |
| 1500 | for (name, stability, body) in split_system_layers(&content) { |
| 1501 | if stability == PromptLayerStability::Static { |
| 1502 | base_static_prefix_parts.push(body.to_string()); |
| 1503 | } |
| 1504 | if stability != PromptLayerStability::Dynamic { |
| 1505 | full_request_prefix_parts.push(body.to_string()); |
| 1506 | } |
| 1507 | layers.push(prompt_layer(name, stability, body)); |
| 1508 | } |
| 1509 | start_index = 1; |
| 1510 | } |
| 1511 | } |
| 1512 | |
| 1513 | if let Some(tool_catalog) = tool_catalog_for_inspect(tools) { |
| 1514 | tool_catalog_hash = sha256_hex(tool_catalog.as_bytes()); |
| 1515 | base_static_prefix_parts.push(tool_catalog.clone()); |
| 1516 | full_request_prefix_parts.push(tool_catalog.clone()); |
| 1517 | layers.push(prompt_layer( |
| 1518 | "Tool catalog".to_string(), |
| 1519 | PromptLayerStability::Static, |
| 1520 | &tool_catalog, |
| 1521 | )); |
| 1522 | } |
| 1523 | |
| 1524 | for (index, message) in messages.iter().enumerate().skip(start_index) { |
| 1525 | let role = message |
| 1526 | .get("role") |
| 1527 | .and_then(Value::as_str) |
| 1528 | .unwrap_or("unknown"); |
| 1529 | let content = message_content_for_inspect(message); |
| 1530 | let is_last = index + 1 == messages.len(); |
| 1531 | let stability = if (is_last && role == "user") || role == "tool" { |
| 1532 | PromptLayerStability::Dynamic |
| 1533 | } else { |
| 1534 | PromptLayerStability::History |
| 1535 | }; |
| 1536 | let name = if is_last && role == "user" { |
| 1537 | "User task".to_string() |
| 1538 | } else { |
| 1539 | format!("Message #{index} {role}") |
| 1540 | }; |
| 1541 | if stability != PromptLayerStability::Dynamic { |
| 1542 | full_request_prefix_parts.push(content.clone()); |
| 1543 | } |
| 1544 | let mut layer = prompt_layer(name, stability, &content); |
| 1545 | layer.tool_result = tool_result_inspection_for_message(message); |
| 1546 | layer.turn_meta = turn_meta_inspection_for_message(message); |
| 1547 | layers.push(layer); |
| 1548 | } |
| 1549 | |
| 1550 | let base_static_prefix = base_static_prefix_parts.join("\n"); |
| 1551 | let full_request_prefix = full_request_prefix_parts.join("\n"); |
| 1552 | |
| 1553 | PromptInspection { |
| 1554 | base_static_prefix_hash: sha256_hex(base_static_prefix.as_bytes()), |
| 1555 | full_request_prefix_hash: sha256_hex(full_request_prefix.as_bytes()), |
| 1556 | tool_catalog_hash, |
| 1557 | layers, |
| 1558 | } |
| 1559 | } |
| 1560 | |
| 1561 | fn tool_catalog_for_inspect(tools: Option<&[Tool]>) -> Option<String> { |
| 1562 | let tools = tools.filter(|tools| !tools.is_empty())?; |
| 1563 | serde_json::to_string(&tools.iter().map(tool_to_chat).collect::<Vec<_>>()).ok() |
| 1564 | } |
| 1565 | |
| 1566 | fn message_content_for_inspect(message: &Value) -> String { |
| 1567 | let mut parts = Vec::new(); |
| 1568 | if let Some(content) = message.get("content").and_then(Value::as_str) |
| 1569 | && !content.is_empty() |
| 1570 | { |
| 1571 | parts.push(content.to_string()); |
| 1572 | } |
| 1573 | if let Some(content) = message.get("content").and_then(Value::as_array) { |
| 1574 | for part in content { |
| 1575 | match part.get("type").and_then(Value::as_str) { |
| 1576 | Some("text") => { |
| 1577 | if let Some(text) = part.get("text").and_then(Value::as_str) |
| 1578 | && !text.is_empty() |
| 1579 | { |
| 1580 | parts.push(text.to_string()); |
| 1581 | } |
| 1582 | } |
| 1583 | Some("image_url") => { |
| 1584 | let url = part |
| 1585 | .get("image_url") |
| 1586 | .and_then(|image_url| image_url.get("url")) |
| 1587 | .and_then(Value::as_str) |
| 1588 | .unwrap_or(""); |
| 1589 | parts.push(format!( |
| 1590 | "[image_url:{}]", |
| 1591 | summarize_image_url_for_inspect(url) |
| 1592 | )); |
| 1593 | } |
| 1594 | _ => {} |
| 1595 | } |
| 1596 | } |
| 1597 | } |
| 1598 | if let Some(reasoning) = message.get("reasoning_content").and_then(Value::as_str) |
| 1599 | && !reasoning.is_empty() |
| 1600 | { |
| 1601 | parts.push(reasoning.to_string()); |
| 1602 | } |
| 1603 | if let Some(tool_calls) = message.get("tool_calls") { |
| 1604 | parts.push(tool_calls.to_string()); |
| 1605 | } |
| 1606 | parts.join("\n") |
| 1607 | } |
| 1608 | |
| 1609 | fn summarize_image_url_for_inspect(url: &str) -> String { |
| 1610 | let Some((prefix, encoded)) = url.split_once(";base64,") else { |
| 1611 | return first_chars(url, 96); |
| 1612 | }; |
| 1613 | format!("{prefix};base64,<{} chars>", encoded.len()) |
| 1614 | } |
| 1615 | |
| 1616 | fn tool_result_inspection_for_message(message: &Value) -> Option<ToolResultInspection> { |
| 1617 | if message.get("role").and_then(Value::as_str) != Some("tool") { |
| 1618 | return None; |
| 1619 | } |
| 1620 | let budget = message.get("_tool_result_budget")?; |
| 1621 | Some(ToolResultInspection { |
| 1622 | original_chars: budget |
| 1623 | .get("original_chars") |
| 1624 | .and_then(Value::as_u64) |
| 1625 | .and_then(|n| usize::try_from(n).ok())?, |
| 1626 | sent_chars: budget |
| 1627 | .get("sent_chars") |
| 1628 | .and_then(Value::as_u64) |
| 1629 | .and_then(|n| usize::try_from(n).ok())?, |
| 1630 | truncated: budget |
| 1631 | .get("truncated") |
| 1632 | .and_then(Value::as_bool) |
| 1633 | .unwrap_or(false), |
| 1634 | deduplicated: budget |
| 1635 | .get("deduplicated") |
| 1636 | .and_then(Value::as_bool) |
| 1637 | .unwrap_or(false), |
| 1638 | }) |
| 1639 | } |
| 1640 | |
| 1641 | fn turn_meta_inspection_for_message(message: &Value) -> Option<TurnMetaInspection> { |
| 1642 | let budget = message.get("_turn_meta_budget")?; |
| 1643 | Some(TurnMetaInspection { |
| 1644 | original_chars: budget |
| 1645 | .get("original_chars") |
| 1646 | .and_then(Value::as_u64) |
| 1647 | .and_then(|n| usize::try_from(n).ok())?, |
| 1648 | sent_chars: budget |
| 1649 | .get("sent_chars") |
| 1650 | .and_then(Value::as_u64) |
| 1651 | .and_then(|n| usize::try_from(n).ok())?, |
| 1652 | deduplicated: budget |
| 1653 | .get("deduplicated") |
| 1654 | .and_then(Value::as_bool) |
| 1655 | .unwrap_or(false), |
| 1656 | sha256: budget |
| 1657 | .get("sha256") |
| 1658 | .and_then(Value::as_str) |
| 1659 | .map(str::to_string)?, |
| 1660 | }) |
| 1661 | } |
| 1662 | |
| 1663 | fn split_system_layers(content: &str) -> Vec<(String, PromptLayerStability, &str)> { |
| 1664 | let markers = [ |
| 1665 | ("Project context", "<project_instructions"), |
| 1666 | ("Project context pack", "## Project Context Pack"), |
| 1667 | ("Environment", "## Environment"), |
| 1668 | ("Configured instructions", "<instructions "), |
| 1669 | ("User memory", "## User Memory"), |
| 1670 | ("Current session goal", "## Current Session Goal"), |
| 1671 | ("Skills", "## Skills"), |
| 1672 | ("Core execution", "## Core Execution"), |
| 1673 | ("Compact template", "## Compact"), |
| 1674 | ("Previous session relay", "## Previous Session Relay"), |
| 1675 | ]; |
| 1676 | |
| 1677 | let mut starts: Vec<(usize, &str)> = markers |
| 1678 | .iter() |
| 1679 | .filter_map(|(name, marker)| content.find(marker).map(|idx| (idx, *name))) |
| 1680 | .collect(); |
| 1681 | starts.sort_by_key(|(idx, _)| *idx); |
| 1682 | |
| 1683 | let mut layers = Vec::new(); |
| 1684 | let first_marker = starts.first().map_or(content.len(), |(idx, _)| *idx); |
| 1685 | if first_marker > 0 { |
| 1686 | layers.push(( |
| 1687 | "Global system prefix".to_string(), |
| 1688 | PromptLayerStability::Static, |
| 1689 | content[..first_marker].trim(), |
| 1690 | )); |
| 1691 | } |
| 1692 | |
| 1693 | for (i, (start, name)) in starts.iter().enumerate() { |
| 1694 | let end = starts.get(i + 1).map_or(content.len(), |(idx, _)| *idx); |
| 1695 | let stability = if *name == "Previous session relay" { |
| 1696 | PromptLayerStability::Dynamic |
| 1697 | } else if is_static_base_layer(name) { |
| 1698 | PromptLayerStability::Static |
| 1699 | } else { |
| 1700 | PromptLayerStability::History |
| 1701 | }; |
| 1702 | layers.push(((*name).to_string(), stability, content[*start..end].trim())); |
| 1703 | } |
| 1704 | |
| 1705 | if layers.is_empty() { |
| 1706 | layers.push(( |
| 1707 | "Global system prefix".to_string(), |
| 1708 | PromptLayerStability::Static, |
| 1709 | content.trim(), |
| 1710 | )); |
| 1711 | } |
| 1712 | layers |
| 1713 | } |
| 1714 | |
| 1715 | fn is_static_base_layer(name: &str) -> bool { |
| 1716 | matches!( |
| 1717 | name, |
| 1718 | "Global system prefix" |
| 1719 | | "Environment" |
| 1720 | | "Skills" |
| 1721 | | "Project context" |
| 1722 | | "Project context pack" |
| 1723 | | "Core execution" |
| 1724 | | "Compact template" |
| 1725 | ) |
| 1726 | } |
| 1727 | |
| 1728 | fn stable_system_prompt(system: Option<&SystemPrompt>) -> Option<SystemPrompt> { |
| 1729 | let instructions = system_to_instructions(system.cloned())?; |
| 1730 | let stable = split_system_layers(&instructions) |
| 1731 | .into_iter() |
| 1732 | .filter_map(|(_, stability, body)| { |
| 1733 | (stability == PromptLayerStability::Static).then_some(body) |
| 1734 | }) |
| 1735 | .collect::<Vec<_>>() |
| 1736 | .join("\n\n"); |
| 1737 | if stable.trim().is_empty() { |
| 1738 | None |
| 1739 | } else { |
| 1740 | Some(SystemPrompt::Text(stable)) |
| 1741 | } |
| 1742 | } |
| 1743 | |
| 1744 | fn stable_history_messages(messages: &[Message]) -> Vec<Message> { |
| 1745 | let mut end = messages.len(); |
| 1746 | if messages |
| 1747 | .last() |
| 1748 | .is_some_and(|message| message.role.as_str() == "user") |
| 1749 | { |
| 1750 | end = end.saturating_sub(1); |
| 1751 | } |
| 1752 | messages[..end].to_vec() |
| 1753 | } |
| 1754 | |
| 1755 | fn prompt_layer( |
| 1756 | name: String, |
| 1757 | stability: PromptLayerStability, |
| 1758 | content: &str, |
| 1759 | ) -> PromptLayerInspection { |
| 1760 | let char_len = content.chars().count(); |
| 1761 | let token_estimate = if char_len == 0 { |
| 1762 | 0 |
| 1763 | } else if content.is_ascii() { |
| 1764 | (char_len / 4).max(1) |
| 1765 | } else { |
| 1766 | char_len.max(1) |
| 1767 | }; |
| 1768 | PromptLayerInspection { |
| 1769 | name, |
| 1770 | stability, |
| 1771 | char_len, |
| 1772 | byte_len: content.len(), |
| 1773 | token_estimate, |
| 1774 | sha256: sha256_hex(content.as_bytes()), |
| 1775 | tool_result: None, |
| 1776 | turn_meta: None, |
| 1777 | } |
| 1778 | } |
| 1779 | |
| 1780 | fn sha256_hex(bytes: &[u8]) -> String { |
| 1781 | crate::hashing::sha256_hex(bytes) |
| 1782 | } |
| 1783 | |
| 1784 | #[derive(Clone)] |
| 1785 | struct PendingToolCallInfo { |
| 1786 | tool_name: String, |
| 1787 | input: Value, |
| 1788 | } |
| 1789 | |
| 1790 | struct SeenToolResult { |
| 1791 | message_label: String, |
| 1792 | original_chars: usize, |
| 1793 | } |
| 1794 | |
| 1795 | struct WireToolResult { |
| 1796 | content: String, |
| 1797 | original_chars: usize, |
| 1798 | sent_chars: usize, |
| 1799 | truncated: bool, |
| 1800 | deduplicated: bool, |
| 1801 | } |
| 1802 | |
| 1803 | #[derive(Clone)] |
| 1804 | struct TurnMetaBudget { |
| 1805 | original_chars: usize, |
| 1806 | sent_chars: usize, |
| 1807 | deduplicated: bool, |
| 1808 | sha256: String, |
| 1809 | } |
| 1810 | |
| 1811 | struct LastFullTurnMeta { |
| 1812 | sha256: String, |
| 1813 | } |
| 1814 | |
| 1815 | fn render_turn_meta_for_wire( |
| 1816 | text: &str, |
| 1817 | last_full_turn_meta: &mut Option<LastFullTurnMeta>, |
| 1818 | ) -> (String, TurnMetaBudget) { |
| 1819 | let original_chars = text.chars().count(); |
| 1820 | let sha = sha256_hex(text.as_bytes()); |
| 1821 | |
| 1822 | if last_full_turn_meta |
| 1823 | .as_ref() |
| 1824 | .is_some_and(|previous| previous.sha256 == sha) |
| 1825 | { |
| 1826 | // Keep the repeated metadata slot short without surfacing an |
| 1827 | // opaque hash the model cannot resolve. |
| 1828 | let rendered = "<turn_meta_unchanged />".to_string(); |
| 1829 | let budget = TurnMetaBudget { |
| 1830 | original_chars, |
| 1831 | sent_chars: rendered.chars().count(), |
| 1832 | deduplicated: true, |
| 1833 | sha256: sha, |
| 1834 | }; |
| 1835 | return (rendered, budget); |
| 1836 | } |
| 1837 | |
| 1838 | *last_full_turn_meta = Some(LastFullTurnMeta { |
| 1839 | sha256: sha.clone(), |
| 1840 | }); |
| 1841 | ( |
| 1842 | text.to_string(), |
| 1843 | TurnMetaBudget { |
| 1844 | original_chars, |
| 1845 | sent_chars: original_chars, |
| 1846 | deduplicated: false, |
| 1847 | sha256: sha, |
| 1848 | }, |
| 1849 | ) |
| 1850 | } |
| 1851 | |
| 1852 | fn is_turn_meta_text(text: &str) -> bool { |
| 1853 | text.trim_start().starts_with("<turn_meta>") |
| 1854 | } |
| 1855 | |
| 1856 | fn turn_meta_budget_json(turn_meta: &TurnMetaBudget) -> Value { |
| 1857 | json!({ |
| 1858 | "original_chars": turn_meta.original_chars, |
| 1859 | "sent_chars": turn_meta.sent_chars, |
| 1860 | "deduplicated": turn_meta.deduplicated, |
| 1861 | "sha256": turn_meta.sha256, |
| 1862 | }) |
| 1863 | } |
| 1864 | |
| 1865 | /// Mutating/write tools whose result body is a *confirmation* (it embeds |
| 1866 | /// the unified diff + summary of what was just written), not retrievable |
| 1867 | /// reference data. Two identical large `write_file` calls must each keep |
| 1868 | /// their full confirmation inline: collapsing the later one to a |
| 1869 | /// `<TOOL_RESULT_REF sha="..." />` makes the model lose the write-success |
| 1870 | /// context and behave as if the file is missing (issue #1695). Read-style |
| 1871 | /// tools (`read_file`, `grep_files`, `exec_shell`, …) may deduplicate medium |
| 1872 | /// outputs by pointing at an earlier full message in the same request. They |
| 1873 | /// never advertise a process-wide SHA as retrievable: that store cannot prove |
| 1874 | /// session ownership. |
| 1875 | fn is_mutation_tool(tool_name: &str) -> bool { |
| 1876 | matches!(tool_name, "write_file" | "edit_file" | "apply_patch") |
| 1877 | } |
| 1878 | |
| 1879 | fn compact_tool_result_for_wire( |
| 1880 | tool_name: &str, |
| 1881 | input: &Value, |
| 1882 | content: &str, |
| 1883 | message_label: &str, |
| 1884 | seen_tool_results: &mut HashMap<String, SeenToolResult>, |
| 1885 | ) -> WireToolResult { |
| 1886 | let original_chars = content.chars().count(); |
| 1887 | let sha = sha256_hex(content.as_bytes()); |
| 1888 | |
| 1889 | // Only medium, non-mutation results can point back to a full earlier |
| 1890 | // message in this one request. Oversized results are already excerpts, so |
| 1891 | // a back-reference would falsely imply the exact bytes remain available. |
| 1892 | let dedup_eligible = (TOOL_RESULT_DEDUP_MIN_CHARS..=TOOL_RESULT_SENT_CHAR_BUDGET) |
| 1893 | .contains(&original_chars) |
| 1894 | && !is_mutation_tool(tool_name); |
| 1895 | |
| 1896 | if dedup_eligible && let Some(previous) = seen_tool_results.get(&sha) { |
| 1897 | let content = format!( |
| 1898 | "<TOOL_RESULT_REF sha=\"{sha}\" original_message=\"{label}\" chars=\"{chars}\">\n\ |
| 1899 | source: full content appears in {label} earlier in this request\n\ |
| 1900 | </TOOL_RESULT_REF>", |
| 1901 | label = previous.message_label, |
| 1902 | chars = previous.original_chars, |
| 1903 | ); |
| 1904 | return WireToolResult { |
| 1905 | sent_chars: content.chars().count(), |
| 1906 | content, |
| 1907 | original_chars, |
| 1908 | truncated: false, |
| 1909 | deduplicated: true, |
| 1910 | }; |
| 1911 | } |
| 1912 | |
| 1913 | if dedup_eligible { |
| 1914 | seen_tool_results.insert( |
| 1915 | sha.clone(), |
| 1916 | SeenToolResult { |
| 1917 | message_label: message_label.to_string(), |
| 1918 | original_chars, |
| 1919 | }, |
| 1920 | ); |
| 1921 | } |
| 1922 | |
| 1923 | if original_chars <= TOOL_RESULT_SENT_CHAR_BUDGET { |
| 1924 | return WireToolResult { |
| 1925 | content: content.to_string(), |
| 1926 | original_chars, |
| 1927 | sent_chars: original_chars, |
| 1928 | truncated: false, |
| 1929 | deduplicated: false, |
| 1930 | }; |
| 1931 | } |
| 1932 | |
| 1933 | // Content already bounded by the adaptive evidence envelope carries its |
| 1934 | // own honest footer: the omitted count, the on-disk artifact path, and a |
| 1935 | // recovery instruction. Truncating it again here would destroy that |
| 1936 | // recovery contract and falsely report that no session-owned artifact |
| 1937 | // was recorded, so pass it through untouched. |
| 1938 | if content.contains(crate::tools::truncate::SPILLOVER_RECOVERY_HINT) { |
| 1939 | return WireToolResult { |
| 1940 | content: content.to_string(), |
| 1941 | original_chars, |
| 1942 | sent_chars: original_chars, |
| 1943 | truncated: false, |
| 1944 | deduplicated: false, |
| 1945 | }; |
| 1946 | } |
| 1947 | |
| 1948 | let head = first_chars(content, TOOL_RESULT_HEAD_CHARS); |
| 1949 | let tail = last_chars(content, TOOL_RESULT_TAIL_CHARS); |
| 1950 | let kept = head.chars().count() + tail.chars().count(); |
| 1951 | let omitted = original_chars.saturating_sub(kept); |
| 1952 | let compacted = format!( |
| 1953 | "[TOOL_RESULT_TRUNCATED]\n\ |
| 1954 | tool_name: {tool_name}\n\ |
| 1955 | command_or_query: {}\n\ |
| 1956 | exit_status: {}\n\ |
| 1957 | original_chars: {original_chars}\n\ |
| 1958 | sha256: {sha}\n\ |
| 1959 | exact_detail: unavailable; no session-owned artifact was recorded\n\ |
| 1960 | first_chars:\n\ |
| 1961 | {head}\n\n\ |
| 1962 | [... truncated {omitted} chars from middle ...]\n\n\ |
| 1963 | last_chars:\n\ |
| 1964 | {tail}", |
| 1965 | tool_command_or_query(input), |
| 1966 | tool_exit_status(content) |
| 1967 | ); |
| 1968 | |
| 1969 | WireToolResult { |
| 1970 | sent_chars: compacted.chars().count(), |
| 1971 | content: compacted, |
| 1972 | original_chars, |
| 1973 | truncated: true, |
| 1974 | deduplicated: false, |
| 1975 | } |
| 1976 | } |
| 1977 | |
| 1978 | fn tool_command_or_query(input: &Value) -> String { |
| 1979 | for key in ["command", "cmd", "query", "q", "pattern", "path", "url"] { |
| 1980 | if let Some(value) = input.get(key) { |
| 1981 | return summarize_for_metadata(value, 500); |
| 1982 | } |
| 1983 | } |
| 1984 | summarize_for_metadata(input, 500) |
| 1985 | } |
| 1986 | |
| 1987 | fn tool_exit_status(content: &str) -> String { |
| 1988 | if let Ok(value) = serde_json::from_str::<Value>(content) { |
| 1989 | for key in ["exit_code", "exit_status", "status", "code"] { |
| 1990 | if let Some(value) = value.get(key) { |
| 1991 | return summarize_for_metadata(value, 120); |
| 1992 | } |
| 1993 | } |
| 1994 | } |
| 1995 | |
| 1996 | for line in content.lines().take(20) { |
| 1997 | let trimmed = line.trim(); |
| 1998 | for prefix in ["Exit code:", "exit code:", "Exit status:", "exit status:"] { |
| 1999 | if let Some(value) = trimmed.strip_prefix(prefix) { |
| 2000 | return value.trim().to_string(); |
| 2001 | } |
| 2002 | } |
| 2003 | } |
| 2004 | "unknown".to_string() |
| 2005 | } |
| 2006 | |
| 2007 | fn summarize_for_metadata(value: &Value, max_chars: usize) -> String { |
| 2008 | let raw = value |
| 2009 | .as_str() |
| 2010 | .map(str::to_string) |
| 2011 | .unwrap_or_else(|| value.to_string()); |
| 2012 | let mut summarized = first_chars(&raw.replace('\n', "\\n"), max_chars); |
| 2013 | if raw.chars().count() > max_chars { |
| 2014 | summarized.push_str("..."); |
| 2015 | } |
| 2016 | summarized |
| 2017 | } |
| 2018 | |
| 2019 | fn first_chars(value: &str, count: usize) -> String { |
| 2020 | value.chars().take(count).collect() |
| 2021 | } |
| 2022 | |
| 2023 | fn last_chars(value: &str, count: usize) -> String { |
| 2024 | let mut chars: Vec<char> = value.chars().rev().take(count).collect(); |
| 2025 | chars.reverse(); |
| 2026 | chars.into_iter().collect() |
| 2027 | } |
| 2028 | |
| 2029 | fn build_chat_messages_with_reasoning( |
| 2030 | system: Option<&SystemPrompt>, |
| 2031 | messages: &[Message], |
| 2032 | _model: &str, |
| 2033 | include_reasoning: bool, |
| 2034 | include_tool_budget_metadata: bool, |
| 2035 | ) -> Vec<Value> { |
| 2036 | let mut out = Vec::new(); |
| 2037 | let mut pending_tool_calls: HashMap<String, PendingToolCallInfo> = HashMap::new(); |
| 2038 | let mut seen_tool_results: HashMap<String, SeenToolResult> = HashMap::new(); |
| 2039 | let mut last_full_turn_meta: Option<LastFullTurnMeta> = None; |
| 2040 | |
| 2041 | if let Some(instructions) = system_to_instructions(system.cloned()) |
| 2042 | && !instructions.trim().is_empty() |
| 2043 | { |
| 2044 | out.push(json!({ |
| 2045 | "role": "system", |
| 2046 | "content": instructions, |
| 2047 | })); |
| 2048 | } |
| 2049 | |
| 2050 | for (message_index, message) in messages.iter().enumerate() { |
| 2051 | let role = message.role.as_str(); |
| 2052 | let mut text_parts = Vec::new(); |
| 2053 | let mut image_parts = Vec::new(); |
| 2054 | let mut thinking_parts = Vec::new(); |
| 2055 | let mut tool_calls = Vec::new(); |
| 2056 | let mut tool_call_infos = Vec::new(); |
| 2057 | let mut tool_results: Vec<(String, String, String)> = Vec::new(); |
| 2058 | let mut turn_meta_budget: Option<TurnMetaBudget> = None; |
| 2059 | |
| 2060 | for block in &message.content { |
| 2061 | match block { |
| 2062 | ContentBlock::Text { text, .. } => { |
| 2063 | if is_turn_meta_text(text) { |
| 2064 | let (rendered, budget) = |
| 2065 | render_turn_meta_for_wire(text, &mut last_full_turn_meta); |
| 2066 | text_parts.push(rendered); |
| 2067 | turn_meta_budget = Some(budget); |
| 2068 | } else { |
| 2069 | text_parts.push(text.clone()); |
| 2070 | } |
| 2071 | } |
| 2072 | ContentBlock::ImageUrl { image_url } => { |
| 2073 | image_parts.push(json!({ |
| 2074 | "type": "image_url", |
| 2075 | "image_url": { |
| 2076 | "url": image_url.url.clone(), |
| 2077 | }, |
| 2078 | })); |
| 2079 | } |
| 2080 | ContentBlock::Thinking { thinking, .. } => thinking_parts.push(thinking.clone()), |
| 2081 | ContentBlock::ToolUse { |
| 2082 | id, |
| 2083 | name, |
| 2084 | input, |
| 2085 | caller, |
| 2086 | .. |
| 2087 | } => { |
| 2088 | let args = serde_json::to_string(input).unwrap_or_else(|_| input.to_string()); |
| 2089 | let mut call = json!({ |
| 2090 | "id": id, |
| 2091 | "type": "function", |
| 2092 | "function": { |
| 2093 | "name": to_api_tool_name(name), |
| 2094 | "arguments": args, |
| 2095 | } |
| 2096 | }); |
| 2097 | if let Some(caller) = caller { |
| 2098 | call["caller"] = json!({ |
| 2099 | "type": caller.caller_type, |
| 2100 | "tool_id": caller.tool_id, |
| 2101 | }); |
| 2102 | } |
| 2103 | tool_calls.push(call); |
| 2104 | tool_call_infos.push(( |
| 2105 | id.clone(), |
| 2106 | PendingToolCallInfo { |
| 2107 | tool_name: name.clone(), |
| 2108 | input: input.clone(), |
| 2109 | }, |
| 2110 | )); |
| 2111 | } |
| 2112 | ContentBlock::ToolResult { |
| 2113 | tool_use_id, |
| 2114 | content, |
| 2115 | .. |
| 2116 | } => { |
| 2117 | let message_label = format!("Message #{message_index}"); |
| 2118 | tool_results.push((tool_use_id.clone(), content.clone(), message_label)); |
| 2119 | } |
| 2120 | ContentBlock::ServerToolUse { .. } |
| 2121 | | ContentBlock::ToolSearchToolResult { .. } |
| 2122 | | ContentBlock::CodeExecutionToolResult { .. } => {} |
| 2123 | } |
| 2124 | } |
| 2125 | |
| 2126 | if role == "assistant" || role == crate::models::INTERRUPTED_ASSISTANT_ROLE { |
| 2127 | let content = if role == crate::models::INTERRUPTED_ASSISTANT_ROLE { |
| 2128 | format!( |
| 2129 | "{}{}", |
| 2130 | crate::models::INTERRUPTED_ASSISTANT_CONTEXT_PREFIX, |
| 2131 | text_parts.join("\n") |
| 2132 | ) |
| 2133 | } else { |
| 2134 | text_parts.join("\n") |
| 2135 | }; |
| 2136 | let mut reasoning_content = thinking_parts.join("\n"); |
| 2137 | let has_text = !content.trim().is_empty(); |
| 2138 | let has_tool_calls = !tool_calls.is_empty(); |
| 2139 | // Reasoning replay must be a function of the stored message ONLY, |
| 2140 | // never of later history. DeepSeek's prefix cache hashes the raw |
| 2141 | // bytes of every message; flipping `reasoning_content` on/off |
| 2142 | // depending on whether a follow-up user turn exists rewrites a |
| 2143 | // historical message between turns and busts the cache from that |
| 2144 | // point onwards. Always emit `reasoning_content` when the model |
| 2145 | // requires replay AND the stored message carries thinking text. |
| 2146 | // Tool-call messages with empty thinking still need a placeholder |
| 2147 | // (DeepSeek 400s without it), but text-only assistant messages |
| 2148 | // simply omit the field when there's nothing to replay. |
| 2149 | let mut has_reasoning = include_reasoning && !reasoning_content.trim().is_empty(); |
| 2150 | if include_reasoning && has_tool_calls && !has_reasoning { |
| 2151 | logging::warn( |
| 2152 | "Substituting placeholder reasoning_content for DeepSeek tool-call assistant message", |
| 2153 | ); |
| 2154 | reasoning_content = String::from("(reasoning omitted)"); |
| 2155 | has_reasoning = true; |
| 2156 | } |
| 2157 | |
| 2158 | // DeepSeek rejects assistant messages where both `content` and |
| 2159 | // `tool_calls` are missing/null. Skip such entries even if they |
| 2160 | // carry reasoning-only metadata unless we can send a non-null |
| 2161 | // placeholder content field. |
| 2162 | if !has_text && !has_tool_calls && !has_reasoning { |
| 2163 | pending_tool_calls.clear(); |
| 2164 | continue; |
| 2165 | } |
| 2166 | |
| 2167 | let mut msg = json!({ |
| 2168 | "role": "assistant", |
| 2169 | "content": if has_text { |
| 2170 | json!(content) |
| 2171 | } else if has_reasoning { |
| 2172 | json!("") |
| 2173 | } else { |
| 2174 | Value::Null |
| 2175 | }, |
| 2176 | }); |
| 2177 | if has_reasoning { |
| 2178 | msg["reasoning_content"] = json!(reasoning_content); |
| 2179 | } |
| 2180 | if has_tool_calls { |
| 2181 | msg["tool_calls"] = json!(tool_calls); |
| 2182 | pending_tool_calls = tool_call_infos.into_iter().collect(); |
| 2183 | } else { |
| 2184 | pending_tool_calls.clear(); |
| 2185 | } |
| 2186 | out.push(msg); |
| 2187 | } else if role == "system" { |
| 2188 | let content = text_parts.join("\n"); |
| 2189 | if !content.trim().is_empty() { |
| 2190 | let mut msg = json!({ |
| 2191 | "role": "system", |
| 2192 | "content": content, |
| 2193 | }); |
| 2194 | if include_tool_budget_metadata && let Some(turn_meta) = &turn_meta_budget { |
| 2195 | msg["_turn_meta_budget"] = turn_meta_budget_json(turn_meta); |
| 2196 | } |
| 2197 | out.push(msg); |
| 2198 | } |
| 2199 | } else if role == "user" { |
| 2200 | let content = text_parts.join("\n"); |
| 2201 | let has_text = !content.trim().is_empty(); |
| 2202 | let has_images = !image_parts.is_empty(); |
| 2203 | if has_text || has_images { |
| 2204 | let wire_content = if has_images { |
| 2205 | let mut parts = Vec::new(); |
| 2206 | if has_text { |
| 2207 | parts.push(json!({ |
| 2208 | "type": "text", |
| 2209 | "text": content, |
| 2210 | })); |
| 2211 | } |
| 2212 | parts.extend(image_parts); |
| 2213 | json!(parts) |
| 2214 | } else { |
| 2215 | json!(content) |
| 2216 | }; |
| 2217 | let mut msg = json!({ |
| 2218 | "role": "user", |
| 2219 | "content": wire_content, |
| 2220 | }); |
| 2221 | if include_tool_budget_metadata && let Some(turn_meta) = &turn_meta_budget { |
| 2222 | msg["_turn_meta_budget"] = turn_meta_budget_json(turn_meta); |
| 2223 | } |
| 2224 | out.push(msg); |
| 2225 | } |
| 2226 | } |
| 2227 | |
| 2228 | if !tool_results.is_empty() { |
| 2229 | if pending_tool_calls.is_empty() { |
| 2230 | logging::warn("Dropping tool results without matching tool_calls"); |
| 2231 | } else { |
| 2232 | for (tool_id, content, message_label) in tool_results { |
| 2233 | if let Some(tool_info) = pending_tool_calls.remove(&tool_id) { |
| 2234 | let wire_result = compact_tool_result_for_wire( |
| 2235 | &tool_info.tool_name, |
| 2236 | &tool_info.input, |
| 2237 | &content, |
| 2238 | &message_label, |
| 2239 | &mut seen_tool_results, |
| 2240 | ); |
| 2241 | let mut tool_msg = json!({ |
| 2242 | "role": "tool", |
| 2243 | "tool_call_id": tool_id, |
| 2244 | "content": wire_result.content, |
| 2245 | }); |
| 2246 | if include_tool_budget_metadata { |
| 2247 | tool_msg["_tool_result_budget"] = json!({ |
| 2248 | "original_chars": wire_result.original_chars, |
| 2249 | "sent_chars": wire_result.sent_chars, |
| 2250 | "truncated": wire_result.truncated, |
| 2251 | "deduplicated": wire_result.deduplicated, |
| 2252 | }); |
| 2253 | } |
| 2254 | out.push(tool_msg); |
| 2255 | } else { |
| 2256 | logging::warn(format!( |
| 2257 | "Dropping tool result for unknown tool_call_id: {tool_id}" |
| 2258 | )); |
| 2259 | } |
| 2260 | } |
| 2261 | } |
| 2262 | } else if role != "assistant" && role != crate::models::INTERRUPTED_ASSISTANT_ROLE { |
| 2263 | pending_tool_calls.clear(); |
| 2264 | } |
| 2265 | } |
| 2266 | |
| 2267 | // Safety net: after compaction, an assistant message may have tool_calls |
| 2268 | // whose results were summarized away. The API rejects these, so strip |
| 2269 | // the tool_calls (downgrading to a plain assistant message) and remove |
| 2270 | // the now-orphaned tool result messages. |
| 2271 | let mut i = 0; |
| 2272 | while i < out.len() { |
| 2273 | let is_assistant_with_tools = out[i].get("role").and_then(Value::as_str) |
| 2274 | == Some("assistant") |
| 2275 | && out[i].get("tool_calls").is_some(); |
| 2276 | |
| 2277 | if is_assistant_with_tools { |
| 2278 | let expected_ids: HashSet<String> = out[i] |
| 2279 | .get("tool_calls") |
| 2280 | .and_then(Value::as_array) |
| 2281 | .map(|calls| { |
| 2282 | calls |
| 2283 | .iter() |
| 2284 | .filter_map(|c| c.get("id").and_then(Value::as_str).map(String::from)) |
| 2285 | .collect() |
| 2286 | }) |
| 2287 | .unwrap_or_default(); |
| 2288 | |
| 2289 | // Collect tool result IDs immediately following this assistant message. |
| 2290 | let mut found_ids: HashSet<String> = HashSet::new(); |
| 2291 | let mut tool_result_end = i + 1; |
| 2292 | while tool_result_end < out.len() { |
| 2293 | if out[tool_result_end].get("role").and_then(Value::as_str) == Some("tool") { |
| 2294 | if let Some(id) = out[tool_result_end] |
| 2295 | .get("tool_call_id") |
| 2296 | .and_then(Value::as_str) |
| 2297 | { |
| 2298 | found_ids.insert(id.to_string()); |
| 2299 | } |
| 2300 | tool_result_end += 1; |
| 2301 | } else { |
| 2302 | break; |
| 2303 | } |
| 2304 | } |
| 2305 | |
| 2306 | // Also scan non-contiguous tool results up to the next assistant message |
| 2307 | // in case compaction left gaps. |
| 2308 | let mut scan = tool_result_end; |
| 2309 | while scan < out.len() { |
| 2310 | if out[scan].get("role").and_then(Value::as_str) == Some("assistant") { |
| 2311 | break; |
| 2312 | } |
| 2313 | if out[scan].get("role").and_then(Value::as_str) == Some("tool") |
| 2314 | && let Some(id) = out[scan].get("tool_call_id").and_then(Value::as_str) |
| 2315 | { |
| 2316 | found_ids.insert(id.to_string()); |
| 2317 | } |
| 2318 | scan += 1; |
| 2319 | } |
| 2320 | |
| 2321 | if !expected_ids.is_subset(&found_ids) { |
| 2322 | let missing: Vec<_> = expected_ids.difference(&found_ids).collect(); |
| 2323 | logging::warn(format!( |
| 2324 | "Stripping orphaned tool_calls from assistant message \ |
| 2325 | (expected {} tool results, found {}, missing: {:?})", |
| 2326 | expected_ids.len(), |
| 2327 | found_ids.len(), |
| 2328 | missing |
| 2329 | )); |
| 2330 | if let Some(obj) = out[i].as_object_mut() { |
| 2331 | obj.remove("tool_calls"); |
| 2332 | } |
| 2333 | // If tool_calls were the only assistant content, remove the now-invalid |
| 2334 | // assistant message entirely (DeepSeek requires content or tool_calls). |
| 2335 | let assistant_content_empty = out[i] |
| 2336 | .get("content") |
| 2337 | .is_none_or(|v| v.is_null() || v.as_str().is_some_and(str::is_empty)); |
| 2338 | if assistant_content_empty { |
| 2339 | // Remove orphaned tool results tied to this stripped assistant call set. |
| 2340 | let mut j = out.len(); |
| 2341 | while j > i + 1 { |
| 2342 | j -= 1; |
| 2343 | if out[j].get("role").and_then(Value::as_str) == Some("tool") |
| 2344 | && let Some(id) = out[j].get("tool_call_id").and_then(Value::as_str) |
| 2345 | && expected_ids.contains(id) |
| 2346 | { |
| 2347 | out.remove(j); |
| 2348 | } |
| 2349 | } |
| 2350 | out.remove(i); |
| 2351 | i = i.saturating_sub(1); |
| 2352 | continue; |
| 2353 | } |
| 2354 | // Remove contiguous tool results first |
| 2355 | if tool_result_end > i + 1 { |
| 2356 | out.drain((i + 1)..tool_result_end); |
| 2357 | } |
| 2358 | // Remove any remaining non-contiguous tool results referencing expected_ids |
| 2359 | // (scan backward to avoid index shifting issues) |
| 2360 | let mut j = out.len(); |
| 2361 | while j > i + 1 { |
| 2362 | j -= 1; |
| 2363 | if out[j].get("role").and_then(Value::as_str) == Some("tool") |
| 2364 | && let Some(id) = out[j].get("tool_call_id").and_then(Value::as_str) |
| 2365 | && expected_ids.contains(id) |
| 2366 | { |
| 2367 | out.remove(j); |
| 2368 | } |
| 2369 | } |
| 2370 | } |
| 2371 | } |
| 2372 | i += 1; |
| 2373 | } |
| 2374 | |
| 2375 | out |
| 2376 | } |
| 2377 | |
| 2378 | pub(super) fn tool_to_chat(tool: &Tool) -> Value { |
| 2379 | let mut value = json!({ |
| 2380 | "type": "function", |
| 2381 | "function": { |
| 2382 | "name": to_api_tool_name(&tool.name), |
| 2383 | "description": tool.description, |
| 2384 | "parameters": tool.input_schema, |
| 2385 | } |
| 2386 | }); |
| 2387 | if let Some(strict) = tool.strict |
| 2388 | && let Some(function) = value.get_mut("function") |
| 2389 | { |
| 2390 | function["strict"] = json!(strict); |
| 2391 | } |
| 2392 | value |
| 2393 | } |
| 2394 | |
| 2395 | pub(super) fn tool_to_chat_for_base_url(tool: &Tool, base_url: &str) -> Value { |
| 2396 | let mut value = tool_to_chat(tool); |
| 2397 | if !deepseek_base_url_supports_strict_tools(base_url) |
| 2398 | && let Some(function) = value.get_mut("function") |
| 2399 | && let Some(obj) = function.as_object_mut() |
| 2400 | { |
| 2401 | obj.remove("strict"); |
| 2402 | } |
| 2403 | value |
| 2404 | } |
| 2405 | |
| 2406 | fn deepseek_base_url_supports_strict_tools(base_url: &str) -> bool { |
| 2407 | let trimmed = base_url.trim_end_matches('/').to_ascii_lowercase(); |
| 2408 | let is_deepseek = trimmed == "https://api.deepseek.com" |
| 2409 | || trimmed == "https://api.deepseek.com/v1" |
| 2410 | || trimmed == "https://api.deepseek.com/beta" |
| 2411 | || trimmed == "https://api.deepseeki.com" |
| 2412 | || trimmed == "https://api.deepseeki.com/v1" |
| 2413 | || trimmed == "https://api.deepseeki.com/beta"; |
| 2414 | !is_deepseek || trimmed.ends_with("/beta") |
| 2415 | } |
| 2416 | |
| 2417 | fn map_tool_choice_for_chat(choice: &Value) -> Option<Value> { |
| 2418 | if let Some(choice_str) = choice.as_str() { |
| 2419 | return Some(json!(choice_str)); |
| 2420 | } |
| 2421 | let Some(choice_type) = choice.get("type").and_then(Value::as_str) else { |
| 2422 | return Some(choice.clone()); |
| 2423 | }; |
| 2424 | |
| 2425 | match choice_type { |
| 2426 | "auto" | "none" => Some(json!(choice_type)), |
| 2427 | "any" => Some(json!("auto")), |
| 2428 | "tool" => choice.get("name").and_then(Value::as_str).map(|name| { |
| 2429 | json!({ |
| 2430 | "type": "function", |
| 2431 | "function": { "name": to_api_tool_name(name) } |
| 2432 | }) |
| 2433 | }), |
| 2434 | _ => Some(choice.clone()), |
| 2435 | } |
| 2436 | } |
| 2437 | |
| 2438 | fn should_send_tool_choice_for_chat(provider: ApiProvider, effort: Option<&str>) -> bool { |
| 2439 | if !matches!(provider, ApiProvider::Deepseek | ApiProvider::DeepseekCN) { |
| 2440 | return true; |
| 2441 | } |
| 2442 | !reasoning_effort_enables_thinking(effort) |
| 2443 | } |
| 2444 | |
| 2445 | fn reasoning_effort_enables_thinking(effort: Option<&str>) -> bool { |
| 2446 | let Some(effort) = effort else { |
| 2447 | return false; |
| 2448 | }; |
| 2449 | !matches!( |
| 2450 | effort.trim().to_ascii_lowercase().as_str(), |
| 2451 | "off" | "disabled" | "none" | "false" |
| 2452 | ) |
| 2453 | } |
| 2454 | |
| 2455 | /// Final-pass sanitizer over the outgoing chat-completions JSON payload. |
| 2456 | /// Forces a non-empty `reasoning_content` onto assistant messages that carry |
| 2457 | /// `tool_calls`, when the model + effort combination requires it. DeepSeek's |
| 2458 | /// thinking-mode API rejects such messages with a 400 error; substituting a |
| 2459 | /// placeholder keeps the conversation chain intact. Non-tool assistant |
| 2460 | /// reasoning can stay omitted once a later user text turn begins. |
| 2461 | /// |
| 2462 | /// Also tallies the size of all replayed `reasoning_content` and logs it, so |
| 2463 | /// users on `RUST_LOG=codewhale_tui=debug` can see how much of their input |
| 2464 | /// budget is being spent re-sending prior thinking traces. |
| 2465 | #[cfg(test)] |
| 2466 | pub(super) fn sanitize_thinking_mode_messages( |
| 2467 | body: &mut Value, |
| 2468 | model: &str, |
| 2469 | effort: Option<&str>, |
| 2470 | provider: ApiProvider, |
| 2471 | ) -> Option<u32> { |
| 2472 | sanitize_thinking_mode_messages_for_route(body, model, effort, provider, "") |
| 2473 | } |
| 2474 | |
| 2475 | /// Route-aware variant of `sanitize_thinking_mode_messages`. |
| 2476 | /// |
| 2477 | /// The wrapper above remains intentionally route-agnostic for existing test |
| 2478 | /// helpers and generic callers. Production chat requests call this version so |
| 2479 | /// exact Kimi Code K3 assistant tool turns retain the reasoning trace that |
| 2480 | /// K3 expects on the next request. |
| 2481 | pub(super) fn sanitize_thinking_mode_messages_for_route( |
| 2482 | body: &mut Value, |
| 2483 | model: &str, |
| 2484 | effort: Option<&str>, |
| 2485 | provider: ApiProvider, |
| 2486 | base_url: &str, |
| 2487 | ) -> Option<u32> { |
| 2488 | if !should_replay_reasoning_content_for_provider_on_route(provider, base_url, model, effort) { |
| 2489 | return None; |
| 2490 | } |
| 2491 | let messages = body.get_mut("messages").and_then(Value::as_array_mut)?; |
| 2492 | let mut substitutions: u32 = 0; |
| 2493 | let mut replay_chars: u64 = 0; |
| 2494 | let mut replay_messages: u32 = 0; |
| 2495 | for (idx, msg) in messages.iter_mut().enumerate() { |
| 2496 | if msg.get("role").and_then(Value::as_str) != Some("assistant") { |
| 2497 | continue; |
| 2498 | } |
| 2499 | let has_tool_calls = msg.get("tool_calls").is_some(); |
| 2500 | let needs_placeholder = msg |
| 2501 | .get("reasoning_content") |
| 2502 | .and_then(Value::as_str) |
| 2503 | .is_none_or(|s| s.trim().is_empty()); |
| 2504 | if has_tool_calls && needs_placeholder { |
| 2505 | msg["reasoning_content"] = json!("(reasoning omitted)"); |
| 2506 | substitutions = substitutions.saturating_add(1); |
| 2507 | logging::warn(format!( |
| 2508 | "Final sanitizer: forced reasoning_content placeholder on assistant[{idx}]", |
| 2509 | )); |
| 2510 | } |
| 2511 | if let Some(reasoning) = msg.get("reasoning_content").and_then(Value::as_str) { |
| 2512 | let len = reasoning.len() as u64; |
| 2513 | if len > 0 { |
| 2514 | replay_chars = replay_chars.saturating_add(len); |
| 2515 | replay_messages = replay_messages.saturating_add(1); |
| 2516 | } |
| 2517 | } |
| 2518 | } |
| 2519 | if substitutions > 0 { |
| 2520 | logging::warn(format!( |
| 2521 | "Final sanitizer: {substitutions} assistant message(s) needed reasoning_content placeholder", |
| 2522 | )); |
| 2523 | } |
| 2524 | if replay_messages == 0 { |
| 2525 | return None; |
| 2526 | } |
| 2527 | // ~4 chars/token is the standard rough estimate; DeepSeek tokens skew |
| 2528 | // a touch shorter on Chinese/code but this is order-of-magnitude info. |
| 2529 | let approx_tokens = (replay_chars / 4).min(u64::from(u32::MAX)) as u32; |
| 2530 | logging::info(format!( |
| 2531 | "Reasoning-content replay: {replay_messages} assistant message(s), ~{approx_tokens} input tokens ({replay_chars} chars) being re-sent in this request", |
| 2532 | )); |
| 2533 | Some(approx_tokens) |
| 2534 | } |
| 2535 | |
| 2536 | /// Sums the byte length of `reasoning_content` across all assistant messages in |
| 2537 | /// an outgoing chat-completions body. Used by tests; the production sanitizer |
| 2538 | /// computes the same number inline and logs it. |
| 2539 | #[cfg(test)] |
| 2540 | pub(super) fn count_reasoning_replay_chars(body: &Value) -> u64 { |
| 2541 | let Some(messages) = body.get("messages").and_then(Value::as_array) else { |
| 2542 | return 0; |
| 2543 | }; |
| 2544 | messages |
| 2545 | .iter() |
| 2546 | .filter(|m| m.get("role").and_then(Value::as_str) == Some("assistant")) |
| 2547 | .filter_map(|m| m.get("reasoning_content").and_then(Value::as_str)) |
| 2548 | .map(|s| s.len() as u64) |
| 2549 | .sum() |
| 2550 | } |
| 2551 | |
| 2552 | /// Render the transport-shape headers we care about for #103 diagnostics. |
| 2553 | /// Always returns SOMETHING printable so the decode-error log line is parseable |
| 2554 | /// even when the server stripped a header we expected. |
| 2555 | fn format_stream_headers(headers: &reqwest::header::HeaderMap) -> String { |
| 2556 | const FIELDS: &[&str] = &[ |
| 2557 | "content-encoding", |
| 2558 | "transfer-encoding", |
| 2559 | "connection", |
| 2560 | "server", |
| 2561 | ]; |
| 2562 | let mut parts: Vec<String> = Vec::with_capacity(FIELDS.len()); |
| 2563 | for field in FIELDS { |
| 2564 | let rendered = headers |
| 2565 | .get(*field) |
| 2566 | .and_then(|v| v.to_str().ok()) |
| 2567 | .unwrap_or("(absent)"); |
| 2568 | parts.push(format!("{field}={rendered}")); |
| 2569 | } |
| 2570 | parts.join(", ") |
| 2571 | } |
| 2572 | |
| 2573 | /// Diagnostic logger fired when DeepSeek rejects the request despite the |
| 2574 | /// sanitizer. Walks the body and logs which assistant messages have tool_calls |
| 2575 | /// but no `reasoning_content` — useful to track down a code path that bypasses |
| 2576 | /// the sanitizer entirely. |
| 2577 | fn log_thinking_mode_violations(body: &Value) { |
| 2578 | let Some(messages) = body.get("messages").and_then(Value::as_array) else { |
| 2579 | logging::warn("400-after-sanitizer: body has no `messages` array"); |
| 2580 | return; |
| 2581 | }; |
| 2582 | let mut violations: Vec<String> = Vec::new(); |
| 2583 | for (idx, msg) in messages.iter().enumerate() { |
| 2584 | if msg.get("role").and_then(Value::as_str) != Some("assistant") { |
| 2585 | continue; |
| 2586 | } |
| 2587 | let reasoning = msg |
| 2588 | .get("reasoning_content") |
| 2589 | .and_then(Value::as_str) |
| 2590 | .unwrap_or(""); |
| 2591 | let has_tc = msg.get("tool_calls").is_some(); |
| 2592 | if reasoning.trim().is_empty() { |
| 2593 | violations.push(format!( |
| 2594 | "assistant[{idx}] (reasoning_content missing, tool_calls={has_tc})" |
| 2595 | )); |
| 2596 | } |
| 2597 | } |
| 2598 | if violations.is_empty() { |
| 2599 | logging::warn( |
| 2600 | "400-after-sanitizer: all assistant messages have reasoning_content — DeepSeek rejected for a different reason", |
| 2601 | ); |
| 2602 | } else { |
| 2603 | logging::warn(format!( |
| 2604 | "400-after-sanitizer: {} assistant message(s) lack reasoning_content despite sanitizer: {}", |
| 2605 | violations.len(), |
| 2606 | violations.join(", ") |
| 2607 | )); |
| 2608 | } |
| 2609 | } |
| 2610 | |
| 2611 | fn requires_reasoning_content(model: &str) -> bool { |
| 2612 | let lower = model.to_lowercase(); |
| 2613 | // V4-family direct model IDs. |
| 2614 | lower.contains("deepseek-v4") |
| 2615 | // Public DeepSeek API aliases routed server-side to the V4 family. |
| 2616 | // `deepseek-chat` resolves to `deepseek-v4-flash` and `deepseek-reasoner` |
| 2617 | // resolves to `deepseek-v4-pro`; both have thinking mode enabled by |
| 2618 | // default, so any assistant message carrying tool_calls must replay |
| 2619 | // `reasoning_content` on subsequent turns or the API returns 400. |
| 2620 | || lower.starts_with("deepseek-chat") |
| 2621 | || lower.starts_with("deepseek-reasoner") |
| 2622 | // Generic reasoning markers used by custom/proxied deployments. |
| 2623 | || lower.contains("reasoner") |
| 2624 | || lower.contains("-reasoning") |
| 2625 | || lower.contains("-thinking") |
| 2626 | || has_deepseek_r_series_marker(&lower) |
| 2627 | } |
| 2628 | |
| 2629 | fn should_replay_reasoning_content(model: &str, effort: Option<&str>) -> bool { |
| 2630 | if effort |
| 2631 | .map(|value| { |
| 2632 | matches!( |
| 2633 | value.trim().to_ascii_lowercase().as_str(), |
| 2634 | "off" | "disabled" | "none" | "false" |
| 2635 | ) |
| 2636 | }) |
| 2637 | .unwrap_or(false) |
| 2638 | { |
| 2639 | return false; |
| 2640 | } |
| 2641 | |
| 2642 | requires_reasoning_content(model) |
| 2643 | } |
| 2644 | |
| 2645 | #[cfg(test)] |
| 2646 | fn should_replay_reasoning_content_for_provider( |
| 2647 | provider: ApiProvider, |
| 2648 | model: &str, |
| 2649 | effort: Option<&str>, |
| 2650 | ) -> bool { |
| 2651 | should_replay_reasoning_content_for_provider_on_route(provider, "", model, effort) |
| 2652 | } |
| 2653 | |
| 2654 | /// Route-aware reasoning replay policy. |
| 2655 | /// |
| 2656 | /// Keep the bare K3 identifier out of the global model catalog: direct |
| 2657 | /// Moonshot and arbitrary OpenAI-compatible routes can also expose a `k3` |
| 2658 | /// model name, but only Kimi Code's exact membership-plan endpoint has this |
| 2659 | /// replay contract. |
| 2660 | fn should_replay_reasoning_content_for_provider_on_route( |
| 2661 | provider: ApiProvider, |
| 2662 | base_url: &str, |
| 2663 | model: &str, |
| 2664 | effort: Option<&str>, |
| 2665 | ) -> bool { |
| 2666 | // Both exact K3 routes and Model Studio's thinking-only models are |
| 2667 | // always-thinking. A stale caller may still carry `off` before route |
| 2668 | // normalization; retaining the assistant reasoning trace is required for |
| 2669 | // multi-turn/tool-call continuity regardless. |
| 2670 | if is_exact_direct_moonshot_k3_route(provider, base_url, model) |
| 2671 | || is_exact_kimi_code_k3_route(provider, base_url, model) |
| 2672 | || is_exact_modelstudio_thinking_only_route(provider, base_url, model) |
| 2673 | { |
| 2674 | return true; |
| 2675 | } |
| 2676 | if effort |
| 2677 | .map(|value| { |
| 2678 | matches!( |
| 2679 | value.trim().to_ascii_lowercase().as_str(), |
| 2680 | "off" | "disabled" | "none" | "false" |
| 2681 | ) |
| 2682 | }) |
| 2683 | .unwrap_or(false) |
| 2684 | { |
| 2685 | return false; |
| 2686 | } |
| 2687 | |
| 2688 | if requires_reasoning_content(model) { |
| 2689 | return true; |
| 2690 | } |
| 2691 | |
| 2692 | // Model Studio replay is deliberately narrower than PR #5233 proposed: |
| 2693 | // only models Alibaba documents as accepting `preserve_thinking` get their |
| 2694 | // `reasoning_content` sent back. `deepseek-v3.1`, `deepseek-v3.2` and the |
| 2695 | // `glm-*` ids stay stripped until someone with a Model Studio key confirms |
| 2696 | // DashScope does not 400 on `reasoning_content` in input messages. |
| 2697 | // `deepseek-v4*` already replays via `requires_reasoning_content` above, so |
| 2698 | // this narrowing removes nothing that exists. |
| 2699 | if is_exact_modelstudio_chat_route(provider, base_url) |
| 2700 | && modelstudio_model_supports_preserve_thinking(model) |
| 2701 | { |
| 2702 | return true; |
| 2703 | } |
| 2704 | |
| 2705 | if !provider_accepts_reasoning_content(provider) { |
| 2706 | // Generic non-DeepSeek model on a provider that rejects the field: |
| 2707 | // keep stripping it (preserves the #1542 fix). But a known DeepSeek |
| 2708 | // reasoning model pointed at a DeepSeek-compatible endpoint via the |
| 2709 | // generic `openai` provider still requires reasoning_content replay, |
| 2710 | // or the thinking-mode API returns 400 (#1739 / #1694). |
| 2711 | return false; |
| 2712 | } |
| 2713 | |
| 2714 | model_supports_reasoning(model) |
| 2715 | } |
| 2716 | |
| 2717 | /// Should the SSE parser treat incoming `reasoning_content` deltas as thinking |
| 2718 | /// (vs. inlining them as answer text)? |
| 2719 | /// |
| 2720 | /// DeepSeek-family models are classified on any provider because their API |
| 2721 | /// requires `reasoning_content` replay on later turns (#1739 / #1694). Other |
| 2722 | /// known reasoning-capable large models are classified only on providers whose |
| 2723 | /// streaming shape exposes reasoning fields, so `reasoning`/`reasoning_content` |
| 2724 | /// deltas become Thinking cells instead of leaking as normal answer text. |
| 2725 | #[cfg(test)] |
| 2726 | fn is_reasoning_model_for_stream(provider: ApiProvider, model: &str) -> bool { |
| 2727 | is_reasoning_model_for_stream_on_route(provider, "", model) |
| 2728 | } |
| 2729 | |
| 2730 | /// Route-aware stream classification for providers that share model names. |
| 2731 | fn is_reasoning_model_for_stream_on_route( |
| 2732 | provider: ApiProvider, |
| 2733 | base_url: &str, |
| 2734 | model: &str, |
| 2735 | ) -> bool { |
| 2736 | if is_exact_kimi_code_k3_route(provider, base_url, model) |
| 2737 | || is_exact_direct_moonshot_k3_route(provider, base_url, model) |
| 2738 | { |
| 2739 | return true; |
| 2740 | } |
| 2741 | |
| 2742 | if requires_reasoning_content(model) { |
| 2743 | return true; |
| 2744 | } |
| 2745 | |
| 2746 | // Model Studio's OpenAI-compatible endpoints (Token Plan / Coding Plan) |
| 2747 | // stream hybrid-model reasoning as `delta.reasoning_content` (DashScope |
| 2748 | // dialect) whenever thinking is on — and for the qwen3.x families thinking |
| 2749 | // is on by server default. Surface those deltas as Thinking instead of |
| 2750 | // inlining them into the answer text. `reasoning_content` is deliberately |
| 2751 | // NOT replayed back on later turns (the provider is absent from |
| 2752 | // `provider_accepts_reasoning_content`): DashScope does not require the |
| 2753 | // reasoning field in request history. |
| 2754 | if matches!( |
| 2755 | provider, |
| 2756 | ApiProvider::ModelstudioTokenPlan |
| 2757 | | ApiProvider::ModelstudioTokenPlanAnthropic |
| 2758 | | ApiProvider::ModelstudioCodingPlan |
| 2759 | | ApiProvider::ModelstudioCodingPlanAnthropic |
| 2760 | ) && model_supports_reasoning(model) |
| 2761 | { |
| 2762 | return true; |
| 2763 | } |
| 2764 | |
| 2765 | provider_accepts_reasoning_content(provider) && model_supports_reasoning(model) |
| 2766 | } |
| 2767 | |
| 2768 | #[derive(Debug, Clone, Copy, PartialEq, Eq)] |
| 2769 | pub(super) enum ReasoningStreamStyle { |
| 2770 | SeparateField, |
| 2771 | InlineTags, |
| 2772 | None, |
| 2773 | } |
| 2774 | |
| 2775 | #[cfg(test)] |
| 2776 | fn reasoning_stream_style_for_stream( |
| 2777 | provider: ApiProvider, |
| 2778 | model: &str, |
| 2779 | configured: Option<&str>, |
| 2780 | ) -> ReasoningStreamStyle { |
| 2781 | reasoning_stream_style_for_route(provider, "", model, configured) |
| 2782 | } |
| 2783 | |
| 2784 | /// Choose stream decoding semantics for a fully resolved provider route. |
| 2785 | fn reasoning_stream_style_for_route( |
| 2786 | provider: ApiProvider, |
| 2787 | base_url: &str, |
| 2788 | model: &str, |
| 2789 | configured: Option<&str>, |
| 2790 | ) -> ReasoningStreamStyle { |
| 2791 | if let Some(configured) = configured { |
| 2792 | if let Some(style) = parse_reasoning_stream_style(configured) { |
| 2793 | return style; |
| 2794 | } |
| 2795 | logging::warn(format!( |
| 2796 | "Ignoring unrecognized reasoning_stream_style `{configured}`; expected separate_field, inline_tags, or none" |
| 2797 | )); |
| 2798 | } |
| 2799 | if is_reasoning_model_for_stream_on_route(provider, base_url, model) { |
| 2800 | ReasoningStreamStyle::SeparateField |
| 2801 | } else { |
| 2802 | ReasoningStreamStyle::None |
| 2803 | } |
| 2804 | } |
| 2805 | |
| 2806 | fn parse_reasoning_stream_style(value: &str) -> Option<ReasoningStreamStyle> { |
| 2807 | match value.trim().to_ascii_lowercase().replace('-', "_").as_str() { |
| 2808 | "separate_field" | "separate" | "field" => Some(ReasoningStreamStyle::SeparateField), |
| 2809 | "inline_tags" | "inline" | "think_tags" | "thinking_tags" => { |
| 2810 | Some(ReasoningStreamStyle::InlineTags) |
| 2811 | } |
| 2812 | "none" | "text" | "disabled" | "off" => Some(ReasoningStreamStyle::None), |
| 2813 | _ => None, |
| 2814 | } |
| 2815 | } |
| 2816 | |
| 2817 | /// Providers whose chat-completions API both returns and accepts a dedicated |
| 2818 | /// `reasoning_content` field on assistant messages. |
| 2819 | /// |
| 2820 | /// Arcee is intentionally included. Trinity-Large-Thinking natively emits |
| 2821 | /// `<think>...</think>` traces, but Arcee's hosted API serves it through vLLM |
| 2822 | /// with `--reasoning-parser deepseek_r1`, which parses those blocks into a |
| 2823 | /// `reasoning_content` field (verified live against `api.arcee.ai`: thinking |
| 2824 | /// streams as `delta.reasoning_content`, the answer as `delta.content`, with no |
| 2825 | /// `<think>` tags on the wire). Arcee's docs require replaying `reasoning_content` |
| 2826 | /// on assistant tool-call turns; dropping it makes the model emit tool calls as |
| 2827 | /// raw XML inside its thinking ("xml_in_reasoning" pitfall). Do not remove Arcee |
| 2828 | /// here without new live evidence — see docs.arcee.ai/capabilities/reasoning-traces. |
| 2829 | fn provider_accepts_reasoning_content(provider: ApiProvider) -> bool { |
| 2830 | matches!( |
| 2831 | provider, |
| 2832 | ApiProvider::Deepseek |
| 2833 | | ApiProvider::DeepseekCN |
| 2834 | | ApiProvider::NvidiaNim |
| 2835 | | ApiProvider::Openrouter |
| 2836 | | ApiProvider::XiaomiMimo |
| 2837 | | ApiProvider::Novita |
| 2838 | | ApiProvider::Fireworks |
| 2839 | | ApiProvider::Siliconflow |
| 2840 | | ApiProvider::SiliconflowCn |
| 2841 | | ApiProvider::Volcengine |
| 2842 | | ApiProvider::Arcee |
| 2843 | | ApiProvider::Minimax |
| 2844 | | ApiProvider::Sglang |
| 2845 | | ApiProvider::Zai |
| 2846 | | ApiProvider::Moonshot // #3016: Kimi thinking traces use reasoning_content |
| 2847 | ) |
| 2848 | } |
| 2849 | |
| 2850 | fn has_deepseek_r_series_marker(model_lower: &str) -> bool { |
| 2851 | const PREFIX: &str = "deepseek-r"; |
| 2852 | model_lower.match_indices(PREFIX).any(|(idx, _)| { |
| 2853 | model_lower[idx + PREFIX.len()..] |
| 2854 | .chars() |
| 2855 | .next() |
| 2856 | .is_some_and(|ch| ch.is_ascii_digit()) |
| 2857 | }) |
| 2858 | } |
| 2859 | |
| 2860 | fn reasoning_delta( |
| 2861 | value: &Value, |
| 2862 | choice_index: u32, |
| 2863 | reasoning_detail_buffers: &mut std::collections::HashMap<u32, String>, |
| 2864 | ) -> Option<String> { |
| 2865 | if let Some(reasoning) = value |
| 2866 | .get("reasoning_content") |
| 2867 | .or_else(|| value.get("reasoning")) |
| 2868 | .and_then(Value::as_str) |
| 2869 | { |
| 2870 | return Some(reasoning.to_string()); |
| 2871 | } |
| 2872 | |
| 2873 | let details = value.get("reasoning_details").and_then(Value::as_array)?; |
| 2874 | let full_text = details |
| 2875 | .iter() |
| 2876 | .filter_map(|detail| detail.get("text").and_then(Value::as_str)) |
| 2877 | .collect::<String>(); |
| 2878 | if full_text.is_empty() { |
| 2879 | return None; |
| 2880 | } |
| 2881 | |
| 2882 | let previous = reasoning_detail_buffers.entry(choice_index).or_default(); |
| 2883 | let delta = full_text |
| 2884 | .strip_prefix(previous.as_str()) |
| 2885 | .unwrap_or(&full_text) |
| 2886 | .to_string(); |
| 2887 | *previous = full_text; |
| 2888 | Some(delta) |
| 2889 | } |
| 2890 | |
| 2891 | fn reasoning_message_text(value: &Value) -> Option<String> { |
| 2892 | if let Some(reasoning) = value |
| 2893 | .get("reasoning_content") |
| 2894 | .or_else(|| value.get("reasoning")) |
| 2895 | .and_then(Value::as_str) |
| 2896 | { |
| 2897 | return Some(reasoning.to_string()); |
| 2898 | } |
| 2899 | value |
| 2900 | .get("reasoning_details") |
| 2901 | .and_then(Value::as_array) |
| 2902 | .map(|details| { |
| 2903 | details |
| 2904 | .iter() |
| 2905 | .filter_map(|detail| detail.get("text").and_then(Value::as_str)) |
| 2906 | .collect::<String>() |
| 2907 | }) |
| 2908 | } |
| 2909 | |
| 2910 | pub(super) fn parse_chat_message(payload: &Value) -> Result<MessageResponse> { |
| 2911 | let id = payload |
| 2912 | .get("id") |
| 2913 | .and_then(Value::as_str) |
| 2914 | .unwrap_or("chatcmpl") |
| 2915 | .to_string(); |
| 2916 | let model = payload |
| 2917 | .get("model") |
| 2918 | .and_then(Value::as_str) |
| 2919 | .unwrap_or("unknown") |
| 2920 | .to_string(); |
| 2921 | |
| 2922 | let choices = payload |
| 2923 | .get("choices") |
| 2924 | .and_then(Value::as_array) |
| 2925 | .context("Chat API response missing choices")?; |
| 2926 | let choice = choices |
| 2927 | .first() |
| 2928 | .context("Chat API response missing first choice")?; |
| 2929 | let message = choice |
| 2930 | .get("message") |
| 2931 | .context("Chat API response missing message")?; |
| 2932 | |
| 2933 | let mut content_blocks = Vec::new(); |
| 2934 | if let Some(reasoning) = |
| 2935 | reasoning_message_text(message).filter(|reasoning| !reasoning.trim().is_empty()) |
| 2936 | { |
| 2937 | content_blocks.push(ContentBlock::Thinking { |
| 2938 | signature: None, |
| 2939 | thinking: reasoning.to_string(), |
| 2940 | }); |
| 2941 | } |
| 2942 | if let Some(text) = message.get("content").and_then(Value::as_str) |
| 2943 | && !text.trim().is_empty() |
| 2944 | { |
| 2945 | content_blocks.push(ContentBlock::Text { |
| 2946 | text: text.to_string(), |
| 2947 | cache_control: None, |
| 2948 | }); |
| 2949 | } |
| 2950 | |
| 2951 | if let Some(tool_calls) = message.get("tool_calls").and_then(Value::as_array) { |
| 2952 | for call in tool_calls { |
| 2953 | let id = call |
| 2954 | .get("id") |
| 2955 | .and_then(Value::as_str) |
| 2956 | .unwrap_or("tool_call") |
| 2957 | .to_string(); |
| 2958 | let function = call.get("function"); |
| 2959 | let name = tool_name_or_fallback( |
| 2960 | function.and_then(|f| f.get("name")).and_then(Value::as_str), |
| 2961 | &id, |
| 2962 | "Non-streaming response", |
| 2963 | ); |
| 2964 | let arguments = function |
| 2965 | .and_then(|f| f.get("arguments")) |
| 2966 | .and_then(Value::as_str) |
| 2967 | .map(|raw| serde_json::from_str(raw).unwrap_or(Value::String(raw.to_string()))) |
| 2968 | .unwrap_or(Value::Null); |
| 2969 | let caller = call.get("caller").and_then(|v| { |
| 2970 | v.get("type") |
| 2971 | .and_then(Value::as_str) |
| 2972 | .map(|caller_type| ToolCaller { |
| 2973 | caller_type: caller_type.to_string(), |
| 2974 | tool_id: v |
| 2975 | .get("tool_id") |
| 2976 | .and_then(Value::as_str) |
| 2977 | .map(std::string::ToString::to_string), |
| 2978 | }) |
| 2979 | }); |
| 2980 | |
| 2981 | content_blocks.push(ContentBlock::ToolUse { |
| 2982 | id, |
| 2983 | name: from_api_tool_name(&name), |
| 2984 | input: arguments, |
| 2985 | caller, |
| 2986 | }); |
| 2987 | } |
| 2988 | } |
| 2989 | |
| 2990 | let usage = parse_usage(payload.get("usage")); |
| 2991 | |
| 2992 | Ok(MessageResponse { |
| 2993 | id, |
| 2994 | r#type: "message".to_string(), |
| 2995 | role: "assistant".to_string(), |
| 2996 | content: content_blocks, |
| 2997 | model, |
| 2998 | stop_reason: choice |
| 2999 | .get("finish_reason") |
| 3000 | .and_then(Value::as_str) |
| 3001 | .map(str::to_string), |
| 3002 | stop_sequence: None, |
| 3003 | container: None, |
| 3004 | usage, |
| 3005 | }) |
| 3006 | } |
| 3007 | |
| 3008 | #[derive(Debug, Default)] |
| 3009 | struct InlineReasoningTagState { |
| 3010 | inside_think: bool, |
| 3011 | pending: String, |
| 3012 | } |
| 3013 | |
| 3014 | #[derive(Debug, PartialEq, Eq)] |
| 3015 | enum ReasoningSegment { |
| 3016 | Text(String), |
| 3017 | Thinking(String), |
| 3018 | } |
| 3019 | |
| 3020 | fn inline_reasoning_segments( |
| 3021 | content: &str, |
| 3022 | state: &mut InlineReasoningTagState, |
| 3023 | flush: bool, |
| 3024 | ) -> Vec<ReasoningSegment> { |
| 3025 | state.pending.push_str(content); |
| 3026 | let mut segments = Vec::new(); |
| 3027 | |
| 3028 | loop { |
| 3029 | if state.pending.is_empty() { |
| 3030 | break; |
| 3031 | } |
| 3032 | |
| 3033 | if state.inside_think { |
| 3034 | if let Some(close_at) = state.pending.find("</think>") { |
| 3035 | push_reasoning_segment( |
| 3036 | &mut segments, |
| 3037 | ReasoningSegment::Thinking(state.pending[..close_at].to_string()), |
| 3038 | ); |
| 3039 | state.pending.drain(..close_at + "</think>".len()); |
| 3040 | state.inside_think = false; |
| 3041 | continue; |
| 3042 | } |
| 3043 | |
| 3044 | let hold_len = if flush { |
| 3045 | 0 |
| 3046 | } else { |
| 3047 | trailing_tag_prefix_len(&state.pending, "</think>") |
| 3048 | }; |
| 3049 | let emit_len = state.pending.len().saturating_sub(hold_len); |
| 3050 | if emit_len > 0 { |
| 3051 | push_reasoning_segment( |
| 3052 | &mut segments, |
| 3053 | ReasoningSegment::Thinking(state.pending[..emit_len].to_string()), |
| 3054 | ); |
| 3055 | state.pending.drain(..emit_len); |
| 3056 | } |
| 3057 | break; |
| 3058 | } |
| 3059 | |
| 3060 | if let Some(open_at) = state.pending.find("<think>") { |
| 3061 | push_reasoning_segment( |
| 3062 | &mut segments, |
| 3063 | ReasoningSegment::Text(state.pending[..open_at].to_string()), |
| 3064 | ); |
| 3065 | state.pending.drain(..open_at + "<think>".len()); |
| 3066 | state.inside_think = true; |
| 3067 | continue; |
| 3068 | } |
| 3069 | |
| 3070 | let hold_len = if flush { |
| 3071 | 0 |
| 3072 | } else { |
| 3073 | trailing_tag_prefix_len(&state.pending, "<think>") |
| 3074 | }; |
| 3075 | let emit_len = state.pending.len().saturating_sub(hold_len); |
| 3076 | if emit_len > 0 { |
| 3077 | push_reasoning_segment( |
| 3078 | &mut segments, |
| 3079 | ReasoningSegment::Text(state.pending[..emit_len].to_string()), |
| 3080 | ); |
| 3081 | state.pending.drain(..emit_len); |
| 3082 | } |
| 3083 | break; |
| 3084 | } |
| 3085 | |
| 3086 | segments |
| 3087 | } |
| 3088 | |
| 3089 | fn trailing_tag_prefix_len(content: &str, tag: &str) -> usize { |
| 3090 | let max_len = tag.len().min(content.len()); |
| 3091 | for len in (1..=max_len).rev() { |
| 3092 | let start = content.len() - len; |
| 3093 | if content.is_char_boundary(start) && tag.starts_with(&content[start..]) { |
| 3094 | return len; |
| 3095 | } |
| 3096 | } |
| 3097 | 0 |
| 3098 | } |
| 3099 | |
| 3100 | fn push_reasoning_segment(segments: &mut Vec<ReasoningSegment>, segment: ReasoningSegment) { |
| 3101 | match &segment { |
| 3102 | ReasoningSegment::Text(text) | ReasoningSegment::Thinking(text) if text.is_empty() => {} |
| 3103 | _ => segments.push(segment), |
| 3104 | } |
| 3105 | } |
| 3106 | |
| 3107 | fn push_text_delta( |
| 3108 | events: &mut Vec<StreamEvent>, |
| 3109 | content_index: &mut u32, |
| 3110 | text_started: &mut bool, |
| 3111 | thinking_started: &mut bool, |
| 3112 | text: String, |
| 3113 | ) { |
| 3114 | if *thinking_started { |
| 3115 | events.push(StreamEvent::ContentBlockStop { |
| 3116 | index: *content_index, |
| 3117 | }); |
| 3118 | *content_index += 1; |
| 3119 | *thinking_started = false; |
| 3120 | } |
| 3121 | if !*text_started { |
| 3122 | events.push(StreamEvent::ContentBlockStart { |
| 3123 | index: *content_index, |
| 3124 | content_block: ContentBlockStart::Text { |
| 3125 | text: String::new(), |
| 3126 | }, |
| 3127 | }); |
| 3128 | *text_started = true; |
| 3129 | } |
| 3130 | events.push(StreamEvent::ContentBlockDelta { |
| 3131 | index: *content_index, |
| 3132 | delta: Delta::TextDelta { text }, |
| 3133 | }); |
| 3134 | } |
| 3135 | |
| 3136 | fn push_thinking_delta( |
| 3137 | events: &mut Vec<StreamEvent>, |
| 3138 | content_index: &mut u32, |
| 3139 | text_started: &mut bool, |
| 3140 | thinking_started: &mut bool, |
| 3141 | thinking: String, |
| 3142 | ) { |
| 3143 | if *text_started { |
| 3144 | events.push(StreamEvent::ContentBlockStop { |
| 3145 | index: *content_index, |
| 3146 | }); |
| 3147 | *content_index += 1; |
| 3148 | *text_started = false; |
| 3149 | } |
| 3150 | if !*thinking_started { |
| 3151 | events.push(StreamEvent::ContentBlockStart { |
| 3152 | index: *content_index, |
| 3153 | content_block: ContentBlockStart::Thinking { |
| 3154 | thinking: String::new(), |
| 3155 | }, |
| 3156 | }); |
| 3157 | *thinking_started = true; |
| 3158 | } |
| 3159 | events.push(StreamEvent::ContentBlockDelta { |
| 3160 | index: *content_index, |
| 3161 | delta: Delta::ThinkingDelta { thinking }, |
| 3162 | }); |
| 3163 | } |
| 3164 | |
| 3165 | // === SSE Chunk Parser === |
| 3166 | |
| 3167 | enum SseDataFrame { |
| 3168 | Done, |
| 3169 | Events(Vec<StreamEvent>), |
| 3170 | } |
| 3171 | |
| 3172 | // The six `&mut` streaming-state fields plus the style flag are a deliberate, |
| 3173 | // shared parser-state set (mirrored by `parse_sse_chunk*`); bundling them into a |
| 3174 | // struct would only add reborrow noise on this hot SSE path. |
| 3175 | #[allow(clippy::too_many_arguments)] |
| 3176 | fn parse_sse_data_frame( |
| 3177 | data: &str, |
| 3178 | content_index: &mut u32, |
| 3179 | text_started: &mut bool, |
| 3180 | thinking_started: &mut bool, |
| 3181 | tool_indices: &mut std::collections::HashMap<u32, u32>, |
| 3182 | reasoning_detail_buffers: &mut std::collections::HashMap<u32, String>, |
| 3183 | inline_reasoning_tags: &mut InlineReasoningTagState, |
| 3184 | reasoning_stream_style: ReasoningStreamStyle, |
| 3185 | ) -> SseDataFrame { |
| 3186 | if data.trim() == "[DONE]" { |
| 3187 | return SseDataFrame::Done; |
| 3188 | } |
| 3189 | let events = serde_json::from_str::<Value>(data).map_or_else( |
| 3190 | |_| Vec::new(), |
| 3191 | |chunk_json| { |
| 3192 | parse_sse_chunk_with_reasoning_style( |
| 3193 | &chunk_json, |
| 3194 | content_index, |
| 3195 | text_started, |
| 3196 | thinking_started, |
| 3197 | tool_indices, |
| 3198 | reasoning_detail_buffers, |
| 3199 | inline_reasoning_tags, |
| 3200 | reasoning_stream_style, |
| 3201 | ) |
| 3202 | }, |
| 3203 | ); |
| 3204 | SseDataFrame::Events(events) |
| 3205 | } |
| 3206 | |
| 3207 | /// Parse a single SSE chunk from the Chat Completions streaming API into |
| 3208 | /// our internal `StreamEvent` representation. |
| 3209 | #[cfg(test)] |
| 3210 | pub(super) fn parse_sse_chunk( |
| 3211 | chunk: &Value, |
| 3212 | content_index: &mut u32, |
| 3213 | text_started: &mut bool, |
| 3214 | thinking_started: &mut bool, |
| 3215 | tool_indices: &mut std::collections::HashMap<u32, u32>, |
| 3216 | reasoning_detail_buffers: &mut std::collections::HashMap<u32, String>, |
| 3217 | is_reasoning_model: bool, |
| 3218 | ) -> Vec<StreamEvent> { |
| 3219 | let mut inline_reasoning_tags = InlineReasoningTagState::default(); |
| 3220 | let reasoning_stream_style = if is_reasoning_model { |
| 3221 | ReasoningStreamStyle::SeparateField |
| 3222 | } else { |
| 3223 | ReasoningStreamStyle::None |
| 3224 | }; |
| 3225 | parse_sse_chunk_with_reasoning_style( |
| 3226 | chunk, |
| 3227 | content_index, |
| 3228 | text_started, |
| 3229 | thinking_started, |
| 3230 | tool_indices, |
| 3231 | reasoning_detail_buffers, |
| 3232 | &mut inline_reasoning_tags, |
| 3233 | reasoning_stream_style, |
| 3234 | ) |
| 3235 | } |
| 3236 | |
| 3237 | // Same deliberate shared parser-state set as `parse_sse_data_frame`. |
| 3238 | #[allow(clippy::too_many_arguments)] |
| 3239 | fn parse_sse_chunk_with_reasoning_style( |
| 3240 | chunk: &Value, |
| 3241 | content_index: &mut u32, |
| 3242 | text_started: &mut bool, |
| 3243 | thinking_started: &mut bool, |
| 3244 | tool_indices: &mut std::collections::HashMap<u32, u32>, |
| 3245 | reasoning_detail_buffers: &mut std::collections::HashMap<u32, String>, |
| 3246 | inline_reasoning_tags: &mut InlineReasoningTagState, |
| 3247 | reasoning_stream_style: ReasoningStreamStyle, |
| 3248 | ) -> Vec<StreamEvent> { |
| 3249 | let mut events = Vec::new(); |
| 3250 | |
| 3251 | let Some(choices) = chunk.get("choices").and_then(Value::as_array) else { |
| 3252 | // Usage-only chunk (sent at end with stream_options) |
| 3253 | if let Some(usage_val) = chunk.get("usage") { |
| 3254 | let usage = parse_usage(Some(usage_val)); |
| 3255 | events.push(StreamEvent::MessageDelta { |
| 3256 | delta: MessageDelta { |
| 3257 | stop_reason: None, |
| 3258 | stop_sequence: None, |
| 3259 | }, |
| 3260 | usage: Some(usage), |
| 3261 | }); |
| 3262 | } |
| 3263 | return events; |
| 3264 | }; |
| 3265 | |
| 3266 | if choices.is_empty() { |
| 3267 | if let Some(usage_val) = chunk.get("usage") { |
| 3268 | let usage = parse_usage(Some(usage_val)); |
| 3269 | events.push(StreamEvent::MessageDelta { |
| 3270 | delta: MessageDelta { |
| 3271 | stop_reason: None, |
| 3272 | stop_sequence: None, |
| 3273 | }, |
| 3274 | usage: Some(usage), |
| 3275 | }); |
| 3276 | } |
| 3277 | return events; |
| 3278 | } |
| 3279 | |
| 3280 | for choice in choices { |
| 3281 | let choice_index = choice.get("index").and_then(Value::as_u64).unwrap_or(0) as u32; |
| 3282 | let delta = choice.get("delta"); |
| 3283 | let finish_reason = choice |
| 3284 | .get("finish_reason") |
| 3285 | .and_then(Value::as_str) |
| 3286 | .map(str::to_string); |
| 3287 | |
| 3288 | if let Some(delta) = delta { |
| 3289 | let reasoning_text = reasoning_delta(delta, choice_index, reasoning_detail_buffers) |
| 3290 | .filter(|s| !s.is_empty()); |
| 3291 | let content_text = delta |
| 3292 | .get("content") |
| 3293 | .and_then(Value::as_str) |
| 3294 | .filter(|s| !s.is_empty()) |
| 3295 | .map(str::to_string); |
| 3296 | |
| 3297 | // Handle reasoning_content / reasoning thinking deltas. |
| 3298 | if reasoning_stream_style == ReasoningStreamStyle::SeparateField |
| 3299 | && let Some(reasoning) = reasoning_text.as_deref() |
| 3300 | { |
| 3301 | push_thinking_delta( |
| 3302 | &mut events, |
| 3303 | content_index, |
| 3304 | text_started, |
| 3305 | thinking_started, |
| 3306 | reasoning.to_string(), |
| 3307 | ); |
| 3308 | } |
| 3309 | |
| 3310 | // Generic OpenAI-compatible proxies sometimes stream answer text |
| 3311 | // in `reasoning_content`. If this route is configured with no |
| 3312 | // reasoning semantics, render that field as normal text when no |
| 3313 | // `content` delta is present. |
| 3314 | match (content_text, reasoning_stream_style) { |
| 3315 | (Some(content), ReasoningStreamStyle::InlineTags) => { |
| 3316 | for segment in inline_reasoning_segments(&content, inline_reasoning_tags, false) |
| 3317 | { |
| 3318 | match segment { |
| 3319 | ReasoningSegment::Text(text) => push_text_delta( |
| 3320 | &mut events, |
| 3321 | content_index, |
| 3322 | text_started, |
| 3323 | thinking_started, |
| 3324 | text, |
| 3325 | ), |
| 3326 | ReasoningSegment::Thinking(thinking) => push_thinking_delta( |
| 3327 | &mut events, |
| 3328 | content_index, |
| 3329 | text_started, |
| 3330 | thinking_started, |
| 3331 | thinking, |
| 3332 | ), |
| 3333 | } |
| 3334 | } |
| 3335 | } |
| 3336 | (Some(content), _) => push_text_delta( |
| 3337 | &mut events, |
| 3338 | content_index, |
| 3339 | text_started, |
| 3340 | thinking_started, |
| 3341 | content, |
| 3342 | ), |
| 3343 | (None, ReasoningStreamStyle::None) => { |
| 3344 | if let Some(content) = reasoning_text { |
| 3345 | push_text_delta( |
| 3346 | &mut events, |
| 3347 | content_index, |
| 3348 | text_started, |
| 3349 | thinking_started, |
| 3350 | content, |
| 3351 | ); |
| 3352 | } |
| 3353 | } |
| 3354 | (None, _) => {} |
| 3355 | } |
| 3356 | |
| 3357 | // Handle tool calls |
| 3358 | if let Some(tool_calls) = delta.get("tool_calls").and_then(Value::as_array) { |
| 3359 | for tc in tool_calls { |
| 3360 | let tc_index = tc.get("index").and_then(Value::as_u64).unwrap_or(0) as u32; |
| 3361 | let tool_block_index = match tool_indices.entry(tc_index) { |
| 3362 | std::collections::hash_map::Entry::Occupied(entry) => *entry.get(), |
| 3363 | std::collections::hash_map::Entry::Vacant(entry) => { |
| 3364 | // Close text block if transitioning to tool use |
| 3365 | if *text_started { |
| 3366 | events.push(StreamEvent::ContentBlockStop { |
| 3367 | index: *content_index, |
| 3368 | }); |
| 3369 | *content_index += 1; |
| 3370 | *text_started = false; |
| 3371 | } |
| 3372 | if *thinking_started { |
| 3373 | events.push(StreamEvent::ContentBlockStop { |
| 3374 | index: *content_index, |
| 3375 | }); |
| 3376 | *content_index += 1; |
| 3377 | *thinking_started = false; |
| 3378 | } |
| 3379 | |
| 3380 | let block_index = *content_index; |
| 3381 | let id = tc |
| 3382 | .get("id") |
| 3383 | .and_then(Value::as_str) |
| 3384 | .map(str::to_string) |
| 3385 | // Some upstream gateways (and the responses-API |
| 3386 | // bridge) elide the `id` on the first chunk of a |
| 3387 | // tool call. Falling back to a constant string |
| 3388 | // collides when the model emits parallel tool |
| 3389 | // calls in the same delta — every call ended up |
| 3390 | // with the same id and downstream tool-result |
| 3391 | // routing matched the first one twice. Index by |
| 3392 | // the content-block position to keep the |
| 3393 | // fallback unique within the response. |
| 3394 | .unwrap_or_else(|| format!("call_{block_index}")); |
| 3395 | let name = tc |
| 3396 | .get("function") |
| 3397 | .and_then(|f| f.get("name")) |
| 3398 | .and_then(Value::as_str); |
| 3399 | let name = tool_name_or_fallback(name, &id, "Streaming response chunk"); |
| 3400 | let caller = tc.get("caller").and_then(|v| { |
| 3401 | v.get("type").and_then(Value::as_str).map(|caller_type| { |
| 3402 | ToolCaller { |
| 3403 | caller_type: caller_type.to_string(), |
| 3404 | tool_id: v |
| 3405 | .get("tool_id") |
| 3406 | .and_then(Value::as_str) |
| 3407 | .map(std::string::ToString::to_string), |
| 3408 | } |
| 3409 | }) |
| 3410 | }); |
| 3411 | |
| 3412 | events.push(StreamEvent::ContentBlockStart { |
| 3413 | index: block_index, |
| 3414 | content_block: ContentBlockStart::ToolUse { |
| 3415 | id, |
| 3416 | name: from_api_tool_name(&name), |
| 3417 | input: json!({}), |
| 3418 | caller, |
| 3419 | }, |
| 3420 | }); |
| 3421 | *content_index = (*content_index).saturating_add(1); |
| 3422 | entry.insert(block_index); |
| 3423 | block_index |
| 3424 | } |
| 3425 | }; |
| 3426 | |
| 3427 | // Stream tool call arguments |
| 3428 | if let Some(args) = tc |
| 3429 | .get("function") |
| 3430 | .and_then(|f| f.get("arguments")) |
| 3431 | .and_then(Value::as_str) |
| 3432 | && !args.is_empty() |
| 3433 | { |
| 3434 | events.push(StreamEvent::ContentBlockDelta { |
| 3435 | index: tool_block_index, |
| 3436 | delta: Delta::InputJsonDelta { |
| 3437 | partial_json: args.to_string(), |
| 3438 | }, |
| 3439 | }); |
| 3440 | } |
| 3441 | } |
| 3442 | } |
| 3443 | } |
| 3444 | |
| 3445 | // Handle finish reason |
| 3446 | if let Some(reason) = finish_reason { |
| 3447 | if reasoning_stream_style == ReasoningStreamStyle::InlineTags { |
| 3448 | for segment in inline_reasoning_segments("", inline_reasoning_tags, true) { |
| 3449 | match segment { |
| 3450 | ReasoningSegment::Text(text) => push_text_delta( |
| 3451 | &mut events, |
| 3452 | content_index, |
| 3453 | text_started, |
| 3454 | thinking_started, |
| 3455 | text, |
| 3456 | ), |
| 3457 | ReasoningSegment::Thinking(thinking) => push_thinking_delta( |
| 3458 | &mut events, |
| 3459 | content_index, |
| 3460 | text_started, |
| 3461 | thinking_started, |
| 3462 | thinking, |
| 3463 | ), |
| 3464 | } |
| 3465 | } |
| 3466 | } |
| 3467 | // Close any open blocks |
| 3468 | if *text_started { |
| 3469 | events.push(StreamEvent::ContentBlockStop { |
| 3470 | index: *content_index, |
| 3471 | }); |
| 3472 | *text_started = false; |
| 3473 | } |
| 3474 | if *thinking_started { |
| 3475 | events.push(StreamEvent::ContentBlockStop { |
| 3476 | index: *content_index, |
| 3477 | }); |
| 3478 | *thinking_started = false; |
| 3479 | } |
| 3480 | // Close tool blocks |
| 3481 | let mut open_tool_indices: Vec<u32> = |
| 3482 | tool_indices.drain().map(|(_, idx)| idx).collect(); |
| 3483 | open_tool_indices.sort_unstable(); |
| 3484 | for tool_block_index in open_tool_indices { |
| 3485 | events.push(StreamEvent::ContentBlockStop { |
| 3486 | index: tool_block_index, |
| 3487 | }); |
| 3488 | } |
| 3489 | |
| 3490 | // Emit usage from the chunk if available |
| 3491 | let chunk_usage = chunk.get("usage").map(|u| parse_usage(Some(u))); |
| 3492 | events.push(StreamEvent::MessageDelta { |
| 3493 | delta: MessageDelta { |
| 3494 | stop_reason: Some(reason), |
| 3495 | stop_sequence: None, |
| 3496 | }, |
| 3497 | usage: chunk_usage, |
| 3498 | }); |
| 3499 | } |
| 3500 | } |
| 3501 | |
| 3502 | events |
| 3503 | } |
| 3504 | |
| 3505 | fn tool_name_or_fallback(name: Option<&str>, id: &str, source: &str) -> String { |
| 3506 | let trimmed = name.unwrap_or("").trim(); |
| 3507 | if trimmed.is_empty() { |
| 3508 | logging::warn(format!( |
| 3509 | "{source} returned an empty tool name for call {id}; using unknown_tool" |
| 3510 | )); |
| 3511 | "unknown_tool".to_string() |
| 3512 | } else { |
| 3513 | trimmed.to_string() |
| 3514 | } |
| 3515 | } |
| 3516 | |
| 3517 | // === #103 Phase 1: stream-decode diagnostics =================================== |
| 3518 | |
| 3519 | #[cfg(test)] |
| 3520 | mod stream_diagnostics_tests { |
| 3521 | use super::*; |
| 3522 | use reqwest::header::{HeaderMap, HeaderValue}; |
| 3523 | |
| 3524 | #[test] |
| 3525 | fn stream_idle_timeout_reports_progress_and_timing() { |
| 3526 | let message = stream_idle_timeout_message( |
| 3527 | Duration::from_secs(240), |
| 3528 | 8192, |
| 3529 | Duration::from_millis(73_500), |
| 3530 | Duration::from_millis(41_250), |
| 3531 | ); |
| 3532 | |
| 3533 | assert_eq!( |
| 3534 | message, |
| 3535 | "SSE stream idle timeout after 240s — no data received \ |
| 3536 | (bytes_received=8192, stream_age_ms=73500, ms_since_last_chunk=41250)" |
| 3537 | ); |
| 3538 | } |
| 3539 | |
| 3540 | #[test] |
| 3541 | fn deepseek_thinking_omits_tool_choice() { |
| 3542 | for effort in [Some("high"), Some("max"), Some("medium"), Some("")] { |
| 3543 | assert!( |
| 3544 | !should_send_tool_choice_for_chat(ApiProvider::Deepseek, effort), |
| 3545 | "DeepSeek thinking rejects explicit tool_choice for {effort:?}" |
| 3546 | ); |
| 3547 | assert!( |
| 3548 | !should_send_tool_choice_for_chat(ApiProvider::DeepseekCN, effort), |
| 3549 | "DeepSeek CN thinking rejects explicit tool_choice for {effort:?}" |
| 3550 | ); |
| 3551 | } |
| 3552 | |
| 3553 | for effort in [ |
| 3554 | None, |
| 3555 | Some("off"), |
| 3556 | Some("disabled"), |
| 3557 | Some("none"), |
| 3558 | Some("false"), |
| 3559 | ] { |
| 3560 | assert!(should_send_tool_choice_for_chat( |
| 3561 | ApiProvider::Deepseek, |
| 3562 | effort |
| 3563 | )); |
| 3564 | } |
| 3565 | assert!(should_send_tool_choice_for_chat( |
| 3566 | ApiProvider::Openrouter, |
| 3567 | Some("high") |
| 3568 | )); |
| 3569 | } |
| 3570 | |
| 3571 | #[test] |
| 3572 | fn format_stream_headers_renders_all_fields_when_present() { |
| 3573 | let mut headers = HeaderMap::new(); |
| 3574 | headers.insert("content-encoding", HeaderValue::from_static("gzip")); |
| 3575 | headers.insert("transfer-encoding", HeaderValue::from_static("chunked")); |
| 3576 | headers.insert("connection", HeaderValue::from_static("keep-alive")); |
| 3577 | headers.insert("server", HeaderValue::from_static("openresty/1.25.3.1")); |
| 3578 | |
| 3579 | let rendered = format_stream_headers(&headers); |
| 3580 | // Order is fixed by FIELDS in the helper; assert each field appears. |
| 3581 | assert!( |
| 3582 | rendered.contains("content-encoding=gzip"), |
| 3583 | "got: {rendered}" |
| 3584 | ); |
| 3585 | assert!( |
| 3586 | rendered.contains("transfer-encoding=chunked"), |
| 3587 | "got: {rendered}" |
| 3588 | ); |
| 3589 | assert!( |
| 3590 | rendered.contains("connection=keep-alive"), |
| 3591 | "got: {rendered}" |
| 3592 | ); |
| 3593 | assert!( |
| 3594 | rendered.contains("server=openresty/1.25.3.1"), |
| 3595 | "got: {rendered}" |
| 3596 | ); |
| 3597 | } |
| 3598 | |
| 3599 | #[test] |
| 3600 | fn format_stream_headers_marks_missing_fields_as_absent() { |
| 3601 | // DeepSeek frequently omits content-encoding when not compressing. |
| 3602 | // The diagnostic must still produce a parseable line so log scrapers |
| 3603 | // don't lose the slot. |
| 3604 | let headers = HeaderMap::new(); |
| 3605 | let rendered = format_stream_headers(&headers); |
| 3606 | assert!( |
| 3607 | rendered.contains("content-encoding=(absent)"), |
| 3608 | "missing field must be explicitly marked; got: {rendered}" |
| 3609 | ); |
| 3610 | assert!( |
| 3611 | rendered.contains("transfer-encoding=(absent)"), |
| 3612 | "missing field must be explicitly marked; got: {rendered}" |
| 3613 | ); |
| 3614 | } |
| 3615 | |
| 3616 | #[test] |
| 3617 | fn format_stream_headers_handles_non_ascii_value_gracefully() { |
| 3618 | // If a header value isn't UTF-8, `.to_str()` fails — we must not panic |
| 3619 | // and should still produce a parseable line. |
| 3620 | let mut headers = HeaderMap::new(); |
| 3621 | // 0xFF is a valid byte but invalid UTF-8 start byte. |
| 3622 | headers.insert( |
| 3623 | "server", |
| 3624 | HeaderValue::from_bytes(b"\xff\xfemystery").expect("header value"), |
| 3625 | ); |
| 3626 | let rendered = format_stream_headers(&headers); |
| 3627 | assert!( |
| 3628 | rendered.contains("server=(absent)"), |
| 3629 | "non-UTF8 header values fall back to (absent); got: {rendered}" |
| 3630 | ); |
| 3631 | } |
| 3632 | } |
| 3633 | |
| 3634 | #[cfg(test)] |
| 3635 | mod arcee_waf_message_encoding_tests { |
| 3636 | use super::build_chat_messages_for_request_and_provider; |
| 3637 | use crate::config::ApiProvider; |
| 3638 | use crate::models::{MessageRequest, SystemPrompt}; |
| 3639 | use serde_json::Value; |
| 3640 | |
| 3641 | fn request_with_system(system: &str) -> MessageRequest { |
| 3642 | MessageRequest { |
| 3643 | model: "trinity-large-thinking".to_string(), |
| 3644 | messages: Vec::new(), |
| 3645 | max_tokens: 16, |
| 3646 | system: Some(SystemPrompt::Text(system.to_string())), |
| 3647 | tools: None, |
| 3648 | tool_choice: None, |
| 3649 | metadata: None, |
| 3650 | thinking: None, |
| 3651 | reasoning_effort: None, |
| 3652 | stream: None, |
| 3653 | temperature: None, |
| 3654 | top_p: None, |
| 3655 | } |
| 3656 | } |
| 3657 | |
| 3658 | fn decoded_content(content: &Value) -> String { |
| 3659 | if let Some(text) = content.as_str() { |
| 3660 | return text.to_string(); |
| 3661 | } |
| 3662 | content |
| 3663 | .as_array() |
| 3664 | .expect("content parts") |
| 3665 | .iter() |
| 3666 | .map(|part| part.get("text").and_then(Value::as_str).expect("text part")) |
| 3667 | .collect() |
| 3668 | } |
| 3669 | |
| 3670 | #[test] |
| 3671 | fn arcee_splits_waf_trigger_without_changing_decoded_system_prompt() { |
| 3672 | let system = "Run calculations with `python -c 'print(1)'` when a tool is available."; |
| 3673 | let request = request_with_system(system); |
| 3674 | |
| 3675 | let messages = build_chat_messages_for_request_and_provider(&request, ApiProvider::Arcee); |
| 3676 | let content = &messages[0]["content"]; |
| 3677 | |
| 3678 | assert!( |
| 3679 | content.is_array(), |
| 3680 | "Arcee system content with a WAF trigger should be encoded as text parts" |
| 3681 | ); |
| 3682 | assert_eq!(decoded_content(content), system); |
| 3683 | let serialized = serde_json::to_string(&messages).expect("serialize messages"); |
| 3684 | assert!( |
| 3685 | !serialized.contains("python -c"), |
| 3686 | "wire JSON should not contain the Cloudflare trigger contiguously: {serialized}" |
| 3687 | ); |
| 3688 | } |
| 3689 | |
| 3690 | #[test] |
| 3691 | fn non_arcee_providers_keep_system_prompt_as_string() { |
| 3692 | let system = "Run calculations with `python -c 'print(1)'` when a tool is available."; |
| 3693 | let request = request_with_system(system); |
| 3694 | |
| 3695 | let messages = build_chat_messages_for_request_and_provider(&request, ApiProvider::Openai); |
| 3696 | |
| 3697 | assert_eq!(messages[0]["content"].as_str(), Some(system)); |
| 3698 | } |
| 3699 | |
| 3700 | #[test] |
| 3701 | fn arcee_keeps_non_triggering_system_prompt_as_string() { |
| 3702 | let system = "Use read-only tools to inspect files before reporting results."; |
| 3703 | let request = request_with_system(system); |
| 3704 | |
| 3705 | let messages = build_chat_messages_for_request_and_provider(&request, ApiProvider::Arcee); |
| 3706 | |
| 3707 | assert_eq!(messages[0]["content"].as_str(), Some(system)); |
| 3708 | } |
| 3709 | } |
| 3710 | |
| 3711 | #[cfg(test)] |
| 3712 | mod minimax_reasoning_replay_tests { |
| 3713 | use super::{ |
| 3714 | build_chat_messages_for_request_and_provider, |
| 3715 | build_chat_messages_for_request_and_provider_and_route, |
| 3716 | }; |
| 3717 | use crate::config::{ |
| 3718 | ApiProvider, DEFAULT_KIMI_CODE_BASE_URL, DEFAULT_MINIMAX_MODEL, DEFAULT_MOONSHOT_BASE_URL, |
| 3719 | KIMI_CODE_K3_MODEL, |
| 3720 | }; |
| 3721 | use crate::models::{ContentBlock, Message, MessageRequest}; |
| 3722 | |
| 3723 | fn request_with_assistant_thinking() -> MessageRequest { |
| 3724 | MessageRequest { |
| 3725 | model: DEFAULT_MINIMAX_MODEL.to_string(), |
| 3726 | messages: vec![Message { |
| 3727 | role: "assistant".to_string(), |
| 3728 | content: vec![ |
| 3729 | ContentBlock::Thinking { |
| 3730 | thinking: "Inspect tool state".to_string(), |
| 3731 | signature: None, |
| 3732 | }, |
| 3733 | ContentBlock::Text { |
| 3734 | text: "Done.".to_string(), |
| 3735 | cache_control: None, |
| 3736 | }, |
| 3737 | ], |
| 3738 | }], |
| 3739 | max_tokens: 16, |
| 3740 | system: None, |
| 3741 | tools: None, |
| 3742 | tool_choice: None, |
| 3743 | metadata: None, |
| 3744 | thinking: None, |
| 3745 | reasoning_effort: None, |
| 3746 | stream: None, |
| 3747 | temperature: None, |
| 3748 | top_p: None, |
| 3749 | } |
| 3750 | } |
| 3751 | |
| 3752 | #[test] |
| 3753 | fn minimax_history_replays_thinking_as_reasoning_details() { |
| 3754 | let request = request_with_assistant_thinking(); |
| 3755 | |
| 3756 | let messages = build_chat_messages_for_request_and_provider(&request, ApiProvider::Minimax); |
| 3757 | let assistant = &messages[0]; |
| 3758 | |
| 3759 | assert_eq!( |
| 3760 | assistant |
| 3761 | .get("reasoning_content") |
| 3762 | .and_then(|value| value.as_str()), |
| 3763 | Some("Inspect tool state") |
| 3764 | ); |
| 3765 | assert_eq!( |
| 3766 | assistant |
| 3767 | .pointer("/reasoning_details/0/type") |
| 3768 | .and_then(|value| value.as_str()), |
| 3769 | Some("text") |
| 3770 | ); |
| 3771 | assert_eq!( |
| 3772 | assistant |
| 3773 | .pointer("/reasoning_details/0/text") |
| 3774 | .and_then(|value| value.as_str()), |
| 3775 | Some("Inspect tool state") |
| 3776 | ); |
| 3777 | } |
| 3778 | |
| 3779 | #[test] |
| 3780 | fn kimi_code_k3_replays_thinking_only_on_the_exact_membership_route() { |
| 3781 | let mut request = request_with_assistant_thinking(); |
| 3782 | request.model = KIMI_CODE_K3_MODEL.to_string(); |
| 3783 | |
| 3784 | let exact = build_chat_messages_for_request_and_provider_and_route( |
| 3785 | &request, |
| 3786 | ApiProvider::Moonshot, |
| 3787 | DEFAULT_KIMI_CODE_BASE_URL, |
| 3788 | ); |
| 3789 | assert_eq!( |
| 3790 | exact[0] |
| 3791 | .get("reasoning_content") |
| 3792 | .and_then(serde_json::Value::as_str), |
| 3793 | Some("Inspect tool state") |
| 3794 | ); |
| 3795 | |
| 3796 | let neighbor = build_chat_messages_for_request_and_provider_and_route( |
| 3797 | &request, |
| 3798 | ApiProvider::Moonshot, |
| 3799 | DEFAULT_MOONSHOT_BASE_URL, |
| 3800 | ); |
| 3801 | assert!( |
| 3802 | neighbor[0].get("reasoning_content").is_none(), |
| 3803 | "a generic Moonshot k3 identifier must not inherit Kimi Code replay" |
| 3804 | ); |
| 3805 | } |
| 3806 | } |
| 3807 | |
| 3808 | // === #103 Phase 4: SSE decoder behavior on canned chunk sequences ============ |
| 3809 | |
| 3810 | #[cfg(test)] |
| 3811 | mod stream_decoder_tests { |
| 3812 | //! Drive `parse_sse_chunk` (the in-place SSE event extractor) over canned |
| 3813 | //! chunk sequences. The full `handle_chat_completion_stream` path needs a |
| 3814 | //! live `reqwest::Response` so it isn't unit-testable without a mock HTTP |
| 3815 | //! harness (issue #69 tracks that). For #103 we exercise the chunk decoder |
| 3816 | //! directly to verify each "class of stream failure" the engine relies on. |
| 3817 | use super::*; |
| 3818 | use crate::models::{ContentBlockStart, Delta, StreamEvent}; |
| 3819 | |
| 3820 | /// Decode a raw SSE-data JSON chunk into our internal events, mirroring |
| 3821 | /// the per-event call shape used by `handle_chat_completion_stream`. |
| 3822 | fn decode_chunk(json_text: &str) -> Vec<StreamEvent> { |
| 3823 | decode_chunk_with_reasoning(json_text, true) |
| 3824 | } |
| 3825 | |
| 3826 | fn decode_chunk_with_reasoning(json_text: &str, is_reasoning_model: bool) -> Vec<StreamEvent> { |
| 3827 | let chunk: Value = serde_json::from_str(json_text).expect("valid SSE JSON"); |
| 3828 | let mut content_index = 0u32; |
| 3829 | let mut text_started = false; |
| 3830 | let mut thinking_started = false; |
| 3831 | let mut tool_indices = std::collections::HashMap::new(); |
| 3832 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 3833 | parse_sse_chunk( |
| 3834 | &chunk, |
| 3835 | &mut content_index, |
| 3836 | &mut text_started, |
| 3837 | &mut thinking_started, |
| 3838 | &mut tool_indices, |
| 3839 | &mut reasoning_detail_buffers, |
| 3840 | is_reasoning_model, |
| 3841 | ) |
| 3842 | } |
| 3843 | |
| 3844 | fn decode_chunks_with_style( |
| 3845 | chunks: &[&str], |
| 3846 | reasoning_stream_style: ReasoningStreamStyle, |
| 3847 | ) -> Vec<StreamEvent> { |
| 3848 | let mut content_index = 0u32; |
| 3849 | let mut text_started = false; |
| 3850 | let mut thinking_started = false; |
| 3851 | let mut tool_indices = std::collections::HashMap::new(); |
| 3852 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 3853 | let mut inline_reasoning_tags = InlineReasoningTagState::default(); |
| 3854 | let mut events = Vec::new(); |
| 3855 | |
| 3856 | for chunk in chunks { |
| 3857 | let value: Value = serde_json::from_str(chunk).expect("valid SSE JSON"); |
| 3858 | events.extend(parse_sse_chunk_with_reasoning_style( |
| 3859 | &value, |
| 3860 | &mut content_index, |
| 3861 | &mut text_started, |
| 3862 | &mut thinking_started, |
| 3863 | &mut tool_indices, |
| 3864 | &mut reasoning_detail_buffers, |
| 3865 | &mut inline_reasoning_tags, |
| 3866 | reasoning_stream_style, |
| 3867 | )); |
| 3868 | } |
| 3869 | events |
| 3870 | } |
| 3871 | |
| 3872 | fn text_delta_text(events: &[StreamEvent]) -> String { |
| 3873 | events |
| 3874 | .iter() |
| 3875 | .filter_map(|event| match event { |
| 3876 | StreamEvent::ContentBlockDelta { |
| 3877 | delta: Delta::TextDelta { text }, |
| 3878 | .. |
| 3879 | } => Some(text.as_str()), |
| 3880 | _ => None, |
| 3881 | }) |
| 3882 | .collect() |
| 3883 | } |
| 3884 | |
| 3885 | fn thinking_delta_text(events: &[StreamEvent]) -> String { |
| 3886 | events |
| 3887 | .iter() |
| 3888 | .filter_map(|event| match event { |
| 3889 | StreamEvent::ContentBlockDelta { |
| 3890 | delta: Delta::ThinkingDelta { thinking }, |
| 3891 | .. |
| 3892 | } => Some(thinking.as_str()), |
| 3893 | _ => None, |
| 3894 | }) |
| 3895 | .collect() |
| 3896 | } |
| 3897 | |
| 3898 | #[test] |
| 3899 | fn decoder_emits_text_delta_for_content_chunk() { |
| 3900 | // The "happy" first chunk: a normal content delta. The engine treats |
| 3901 | // this as `any_content_received = true` and would NOT transparently |
| 3902 | // retry on a subsequent error. |
| 3903 | let events = decode_chunk(r#"{"choices":[{"delta":{"content":"hello"}}]}"#); |
| 3904 | assert!( |
| 3905 | matches!( |
| 3906 | events.first(), |
| 3907 | Some(StreamEvent::ContentBlockStart { |
| 3908 | content_block: ContentBlockStart::Text { .. }, |
| 3909 | .. |
| 3910 | }) |
| 3911 | ), |
| 3912 | "first event should open a text block; got {events:?}" |
| 3913 | ); |
| 3914 | assert!( |
| 3915 | events |
| 3916 | .iter() |
| 3917 | .any(|e| matches!(e, StreamEvent::ContentBlockDelta { |
| 3918 | delta: Delta::TextDelta { text }, |
| 3919 | .. |
| 3920 | } if text == "hello")), |
| 3921 | "should yield a TextDelta carrying 'hello'; got {events:?}" |
| 3922 | ); |
| 3923 | } |
| 3924 | |
| 3925 | #[test] |
| 3926 | fn decoder_emits_thinking_delta_for_reasoning_chunk() { |
| 3927 | // V4 thinking models surface reasoning_content first — the engine |
| 3928 | // also counts these as content received (so a subsequent stream error |
| 3929 | // surfaces rather than retrying transparently). |
| 3930 | let events = decode_chunk(r#"{"choices":[{"delta":{"reasoning_content":"plan..."}}]}"#); |
| 3931 | assert!( |
| 3932 | matches!( |
| 3933 | events.first(), |
| 3934 | Some(StreamEvent::ContentBlockStart { |
| 3935 | content_block: ContentBlockStart::Thinking { .. }, |
| 3936 | .. |
| 3937 | }) |
| 3938 | ), |
| 3939 | "first event should open a thinking block; got {events:?}" |
| 3940 | ); |
| 3941 | assert!( |
| 3942 | events |
| 3943 | .iter() |
| 3944 | .any(|e| matches!(e, StreamEvent::ContentBlockDelta { |
| 3945 | delta: Delta::ThinkingDelta { thinking }, |
| 3946 | .. |
| 3947 | } if thinking == "plan...")), |
| 3948 | "should yield a ThinkingDelta carrying 'plan...'; got {events:?}" |
| 3949 | ); |
| 3950 | } |
| 3951 | |
| 3952 | #[test] |
| 3953 | fn decoder_streams_moonshot_multi_chunk_reasoning_as_thinking() { |
| 3954 | // #3016: recorded shape from Moonshot's native endpoint — kimi-k2.6 |
| 3955 | // streams `reasoning_content` deltas before the answer text. The |
| 3956 | // thinking deltas must accumulate into ONE thinking block and the |
| 3957 | // answer must arrive as text, not be glued into the trace. |
| 3958 | let chunks = [ |
| 3959 | r#"{"id":"cmpl-kimi","model":"kimi-k2.6","choices":[{"index":0,"delta":{"role":"assistant","reasoning_content":"Let me check"}}]}"#, |
| 3960 | r#"{"id":"cmpl-kimi","model":"kimi-k2.6","choices":[{"index":0,"delta":{"reasoning_content":" the config."}}]}"#, |
| 3961 | r#"{"id":"cmpl-kimi","model":"kimi-k2.6","choices":[{"index":0,"delta":{"content":"The answer is 42."}}]}"#, |
| 3962 | ]; |
| 3963 | |
| 3964 | let is_reasoning = |
| 3965 | is_reasoning_model_for_stream(crate::config::ApiProvider::Moonshot, "kimi-k2.6"); |
| 3966 | let mut content_index = 0u32; |
| 3967 | let mut text_started = false; |
| 3968 | let mut thinking_started = false; |
| 3969 | let mut tool_indices = std::collections::HashMap::new(); |
| 3970 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 3971 | let mut events = Vec::new(); |
| 3972 | for chunk in chunks { |
| 3973 | let value: Value = serde_json::from_str(chunk).expect("valid SSE JSON"); |
| 3974 | events.extend(parse_sse_chunk( |
| 3975 | &value, |
| 3976 | &mut content_index, |
| 3977 | &mut text_started, |
| 3978 | &mut thinking_started, |
| 3979 | &mut tool_indices, |
| 3980 | &mut reasoning_detail_buffers, |
| 3981 | is_reasoning, |
| 3982 | )); |
| 3983 | } |
| 3984 | |
| 3985 | let thinking: String = events |
| 3986 | .iter() |
| 3987 | .filter_map(|event| match event { |
| 3988 | StreamEvent::ContentBlockDelta { |
| 3989 | delta: Delta::ThinkingDelta { thinking }, |
| 3990 | .. |
| 3991 | } => Some(thinking.as_str()), |
| 3992 | _ => None, |
| 3993 | }) |
| 3994 | .collect(); |
| 3995 | assert_eq!(thinking, "Let me check the config."); |
| 3996 | |
| 3997 | let thinking_starts = events |
| 3998 | .iter() |
| 3999 | .filter(|event| { |
| 4000 | matches!( |
| 4001 | event, |
| 4002 | StreamEvent::ContentBlockStart { |
| 4003 | content_block: ContentBlockStart::Thinking { .. }, |
| 4004 | .. |
| 4005 | } |
| 4006 | ) |
| 4007 | }) |
| 4008 | .count(); |
| 4009 | assert_eq!(thinking_starts, 1, "one thinking block: {events:?}"); |
| 4010 | |
| 4011 | let text: String = events |
| 4012 | .iter() |
| 4013 | .filter_map(|event| match event { |
| 4014 | StreamEvent::ContentBlockDelta { |
| 4015 | delta: Delta::TextDelta { text }, |
| 4016 | .. |
| 4017 | } => Some(text.as_str()), |
| 4018 | _ => None, |
| 4019 | }) |
| 4020 | .collect(); |
| 4021 | assert_eq!(text, "The answer is 42."); |
| 4022 | } |
| 4023 | |
| 4024 | #[test] |
| 4025 | fn decoder_accepts_openrouter_reasoning_delta_with_extra_fields() { |
| 4026 | let events = decode_chunk( |
| 4027 | r#"{"id":"or-1","choices":[{"delta":{"reasoning":"openrouter thought","reasoning_details":[{"type":"summary","text":"extra"}],"native_finish_reason":null}}],"usage":{"completion_tokens_details":{"reasoning_tokens":3}}}"#, |
| 4028 | ); |
| 4029 | |
| 4030 | assert!( |
| 4031 | events.iter().any(|e| matches!( |
| 4032 | e, |
| 4033 | StreamEvent::ContentBlockDelta { |
| 4034 | delta: Delta::ThinkingDelta { thinking }, |
| 4035 | .. |
| 4036 | } if thinking == "openrouter thought" |
| 4037 | )), |
| 4038 | "OpenRouter-style reasoning deltas with extra fields should not crash decoding; got {events:?}" |
| 4039 | ); |
| 4040 | } |
| 4041 | |
| 4042 | #[test] |
| 4043 | fn decoder_streams_minimax_reasoning_details_as_incremental_thinking() { |
| 4044 | // MiniMax's reasoning_split stream reports reasoning_details text as |
| 4045 | // a cumulative buffer. Emit only the suffix so the Thinking cell does |
| 4046 | // not duplicate earlier reasoning chunks. |
| 4047 | let chunks = [ |
| 4048 | r#"{"id":"minimax-1","choices":[{"index":0,"delta":{"reasoning_details":[{"type":"text","text":"Inspect"}]}}]}"#, |
| 4049 | r#"{"id":"minimax-1","choices":[{"index":0,"delta":{"reasoning_details":[{"type":"text","text":"Inspect config"}]}}]}"#, |
| 4050 | r#"{"id":"minimax-1","choices":[{"index":0,"delta":{"content":"Done."}}]}"#, |
| 4051 | ]; |
| 4052 | |
| 4053 | let is_reasoning = is_reasoning_model_for_stream(ApiProvider::Minimax, "MiniMax-M3"); |
| 4054 | let mut content_index = 0u32; |
| 4055 | let mut text_started = false; |
| 4056 | let mut thinking_started = false; |
| 4057 | let mut tool_indices = std::collections::HashMap::new(); |
| 4058 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 4059 | let mut events = Vec::new(); |
| 4060 | for chunk in chunks { |
| 4061 | let value: Value = serde_json::from_str(chunk).expect("valid SSE JSON"); |
| 4062 | events.extend(parse_sse_chunk( |
| 4063 | &value, |
| 4064 | &mut content_index, |
| 4065 | &mut text_started, |
| 4066 | &mut thinking_started, |
| 4067 | &mut tool_indices, |
| 4068 | &mut reasoning_detail_buffers, |
| 4069 | is_reasoning, |
| 4070 | )); |
| 4071 | } |
| 4072 | |
| 4073 | let thinking: String = events |
| 4074 | .iter() |
| 4075 | .filter_map(|event| match event { |
| 4076 | StreamEvent::ContentBlockDelta { |
| 4077 | delta: Delta::ThinkingDelta { thinking }, |
| 4078 | .. |
| 4079 | } => Some(thinking.as_str()), |
| 4080 | _ => None, |
| 4081 | }) |
| 4082 | .collect(); |
| 4083 | assert_eq!(thinking, "Inspect config"); |
| 4084 | |
| 4085 | assert!(!events.iter().any(|event| matches!( |
| 4086 | event, |
| 4087 | StreamEvent::ContentBlockDelta { |
| 4088 | delta: Delta::TextDelta { text }, |
| 4089 | .. |
| 4090 | } if text == "Inspect" || text == "Inspect config" |
| 4091 | ))); |
| 4092 | } |
| 4093 | |
| 4094 | #[test] |
| 4095 | fn modelstudio_streams_reasoning_content_as_thinking() { |
| 4096 | // Recorded-style DashScope OpenAI-compatible frames (shape lifted from |
| 4097 | // Model Studio's deep-thinking docs): reasoning streams in |
| 4098 | // `delta.reasoning_content`, the answer in `delta.content`, and a |
| 4099 | // trailing usage-only chunk closes the stream. |
| 4100 | let chunks = [ |
| 4101 | r#"{"choices":[{"delta":{"content":null,"role":"assistant","reasoning_content":""},"index":0,"logprobs":null,"finish_reason":null}],"object":"chat.completion.chunk","usage":null,"model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4102 | r#"{"choices":[{"delta":{"reasoning_content":"Let me think"},"index":0}],"object":"chat.completion.chunk","model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4103 | r#"{"choices":[{"delta":{"reasoning_content":" about this."},"index":0}],"object":"chat.completion.chunk","model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4104 | r#"{"choices":[{"delta":{"content":"The answer."},"index":0}],"object":"chat.completion.chunk","model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4105 | r#"{"choices":[{"finish_reason":"stop","delta":{"content":"","reasoning_content":null},"index":0}],"object":"chat.completion.chunk","model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4106 | r#"{"choices":[],"object":"chat.completion.chunk","usage":{"prompt_tokens":10,"completion_tokens":30,"total_tokens":40,"completion_tokens_details":{"reasoning_tokens":20}},"model":"qwen3.8-max","id":"chatcmpl-ms-1"}"#, |
| 4107 | ]; |
| 4108 | |
| 4109 | // Both OpenAI-dialect plans classify their reasoning catalog. |
| 4110 | for (provider, base_url, model) in [ |
| 4111 | ( |
| 4112 | ApiProvider::ModelstudioTokenPlan, |
| 4113 | crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL, |
| 4114 | "qwen3.8-max", |
| 4115 | ), |
| 4116 | ( |
| 4117 | ApiProvider::ModelstudioCodingPlan, |
| 4118 | crate::config::DEFAULT_MODELSTUDIO_CODING_PLAN_BASE_URL, |
| 4119 | "qwen3.7-plus", |
| 4120 | ), |
| 4121 | ] { |
| 4122 | let style = reasoning_stream_style_for_route(provider, base_url, model, None); |
| 4123 | assert_eq!(style, ReasoningStreamStyle::SeparateField, "{provider:?}"); |
| 4124 | |
| 4125 | let mut content_index = 0u32; |
| 4126 | let mut text_started = false; |
| 4127 | let mut thinking_started = false; |
| 4128 | let mut tool_indices = std::collections::HashMap::new(); |
| 4129 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 4130 | let mut inline_reasoning_tags = InlineReasoningTagState::default(); |
| 4131 | let mut events = Vec::new(); |
| 4132 | for chunk in chunks { |
| 4133 | let value: Value = serde_json::from_str(chunk).expect("valid SSE JSON"); |
| 4134 | events.extend(parse_sse_chunk_with_reasoning_style( |
| 4135 | &value, |
| 4136 | &mut content_index, |
| 4137 | &mut text_started, |
| 4138 | &mut thinking_started, |
| 4139 | &mut tool_indices, |
| 4140 | &mut reasoning_detail_buffers, |
| 4141 | &mut inline_reasoning_tags, |
| 4142 | style, |
| 4143 | )); |
| 4144 | } |
| 4145 | |
| 4146 | let thinking: String = events |
| 4147 | .iter() |
| 4148 | .filter_map(|event| match event { |
| 4149 | StreamEvent::ContentBlockDelta { |
| 4150 | delta: Delta::ThinkingDelta { thinking }, |
| 4151 | .. |
| 4152 | } => Some(thinking.as_str()), |
| 4153 | _ => None, |
| 4154 | }) |
| 4155 | .collect(); |
| 4156 | assert_eq!(thinking, "Let me think about this.", "{provider:?}"); |
| 4157 | |
| 4158 | let text: String = events |
| 4159 | .iter() |
| 4160 | .filter_map(|event| match event { |
| 4161 | StreamEvent::ContentBlockDelta { |
| 4162 | delta: Delta::TextDelta { text }, |
| 4163 | .. |
| 4164 | } => Some(text.as_str()), |
| 4165 | _ => None, |
| 4166 | }) |
| 4167 | .collect(); |
| 4168 | assert_eq!(text, "The answer.", "{provider:?}"); |
| 4169 | |
| 4170 | // The trailing usage chunk still surfaces token accounting. |
| 4171 | assert!( |
| 4172 | events.iter().any(|event| matches!( |
| 4173 | event, |
| 4174 | StreamEvent::MessageDelta { usage: Some(usage), .. } |
| 4175 | if usage.output_tokens == 30 |
| 4176 | )), |
| 4177 | "{provider:?}: {events:?}" |
| 4178 | ); |
| 4179 | } |
| 4180 | |
| 4181 | // A non-reasoning model id on the same route keeps the old |
| 4182 | // pass-through semantics (no fabricated Thinking surface). |
| 4183 | let style = reasoning_stream_style_for_route( |
| 4184 | ApiProvider::ModelstudioTokenPlan, |
| 4185 | crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL, |
| 4186 | "qwen3.8-max-lite-unknown", |
| 4187 | None, |
| 4188 | ); |
| 4189 | assert_eq!(style, ReasoningStreamStyle::None); |
| 4190 | } |
| 4191 | |
| 4192 | #[test] |
| 4193 | fn decoder_does_not_render_reasoning_as_text_for_known_provider_models() { |
| 4194 | let mut content_index = 0u32; |
| 4195 | let mut text_started = false; |
| 4196 | let mut thinking_started = false; |
| 4197 | let mut tool_indices = std::collections::HashMap::new(); |
| 4198 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 4199 | let is_reasoning_model = |
| 4200 | is_reasoning_model_for_stream(ApiProvider::XiaomiMimo, "mimo-v2.5-pro"); |
| 4201 | let events = parse_sse_chunk( |
| 4202 | &serde_json::json!({ |
| 4203 | "choices": [{ |
| 4204 | "delta": { |
| 4205 | "reasoning_content": "private plan" |
| 4206 | } |
| 4207 | }] |
| 4208 | }), |
| 4209 | &mut content_index, |
| 4210 | &mut text_started, |
| 4211 | &mut thinking_started, |
| 4212 | &mut tool_indices, |
| 4213 | &mut reasoning_detail_buffers, |
| 4214 | is_reasoning_model, |
| 4215 | ); |
| 4216 | |
| 4217 | assert!(events.iter().any(|event| matches!( |
| 4218 | event, |
| 4219 | StreamEvent::ContentBlockDelta { |
| 4220 | delta: Delta::ThinkingDelta { thinking }, |
| 4221 | .. |
| 4222 | } if thinking == "private plan" |
| 4223 | ))); |
| 4224 | assert!(!events.iter().any(|event| matches!( |
| 4225 | event, |
| 4226 | StreamEvent::ContentBlockDelta { |
| 4227 | delta: Delta::TextDelta { text }, |
| 4228 | .. |
| 4229 | } if text == "private plan" |
| 4230 | ))); |
| 4231 | } |
| 4232 | |
| 4233 | #[test] |
| 4234 | fn decoder_treats_reasoning_content_as_text_when_provider_does_not_support_reasoning() { |
| 4235 | let events = decode_chunk_with_reasoning( |
| 4236 | r#"{"choices":[{"delta":{"reasoning_content":"hello"}}]}"#, |
| 4237 | false, |
| 4238 | ); |
| 4239 | |
| 4240 | assert!( |
| 4241 | matches!( |
| 4242 | events.first(), |
| 4243 | Some(StreamEvent::ContentBlockStart { |
| 4244 | content_block: ContentBlockStart::Text { .. }, |
| 4245 | .. |
| 4246 | }) |
| 4247 | ), |
| 4248 | "first event should open a text block; got {events:?}" |
| 4249 | ); |
| 4250 | assert!( |
| 4251 | events.iter().any(|e| matches!( |
| 4252 | e, |
| 4253 | StreamEvent::ContentBlockDelta { |
| 4254 | delta: Delta::TextDelta { text }, |
| 4255 | .. |
| 4256 | } if text == "hello" |
| 4257 | )), |
| 4258 | "should yield a TextDelta carrying 'hello'; got {events:?}" |
| 4259 | ); |
| 4260 | assert!( |
| 4261 | !events.iter().any(|e| matches!( |
| 4262 | e, |
| 4263 | StreamEvent::ContentBlockDelta { |
| 4264 | delta: Delta::ThinkingDelta { .. }, |
| 4265 | .. |
| 4266 | } |
| 4267 | )), |
| 4268 | "should not emit thinking deltas for generic providers; got {events:?}" |
| 4269 | ); |
| 4270 | } |
| 4271 | |
| 4272 | #[test] |
| 4273 | fn reasoning_style_separate_field_routes_reasoning_to_thinking() { |
| 4274 | let events = decode_chunks_with_style( |
| 4275 | &[ |
| 4276 | r#"{"choices":[{"delta":{"reasoning_content":"private plan"}}]}"#, |
| 4277 | r#"{"choices":[{"delta":{"content":"Public answer."}}]}"#, |
| 4278 | ], |
| 4279 | ReasoningStreamStyle::SeparateField, |
| 4280 | ); |
| 4281 | |
| 4282 | assert_eq!(thinking_delta_text(&events), "private plan"); |
| 4283 | assert_eq!(text_delta_text(&events), "Public answer."); |
| 4284 | } |
| 4285 | |
| 4286 | #[test] |
| 4287 | fn exact_kimi_code_k3_streams_reasoning_content_as_thinking() { |
| 4288 | let style = reasoning_stream_style_for_route( |
| 4289 | ApiProvider::Moonshot, |
| 4290 | crate::config::DEFAULT_KIMI_CODE_BASE_URL, |
| 4291 | crate::config::KIMI_CODE_K3_MODEL, |
| 4292 | None, |
| 4293 | ); |
| 4294 | assert_eq!(style, ReasoningStreamStyle::SeparateField); |
| 4295 | |
| 4296 | let events = decode_chunks_with_style( |
| 4297 | &[r#"{"choices":[{"delta":{"reasoning_content":"private K3 plan"}}]}"#], |
| 4298 | style, |
| 4299 | ); |
| 4300 | assert_eq!(thinking_delta_text(&events), "private K3 plan"); |
| 4301 | assert_eq!(text_delta_text(&events), ""); |
| 4302 | |
| 4303 | let generic_style = reasoning_stream_style_for_route( |
| 4304 | ApiProvider::Moonshot, |
| 4305 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 4306 | crate::config::KIMI_CODE_K3_MODEL, |
| 4307 | None, |
| 4308 | ); |
| 4309 | assert_eq!(generic_style, ReasoningStreamStyle::None); |
| 4310 | } |
| 4311 | |
| 4312 | #[test] |
| 4313 | fn reasoning_style_inline_tags_routes_think_blocks_to_thinking() { |
| 4314 | let events = decode_chunks_with_style( |
| 4315 | &[ |
| 4316 | r#"{"choices":[{"delta":{"content":"Before <thi"}}]}"#, |
| 4317 | r#"{"choices":[{"delta":{"content":"nk>private plan</thi"}}]}"#, |
| 4318 | r#"{"choices":[{"delta":{"content":"nk> after."}}]}"#, |
| 4319 | ], |
| 4320 | ReasoningStreamStyle::InlineTags, |
| 4321 | ); |
| 4322 | |
| 4323 | assert_eq!(thinking_delta_text(&events), "private plan"); |
| 4324 | assert_eq!(text_delta_text(&events), "Before after."); |
| 4325 | assert!( |
| 4326 | !text_delta_text(&events).contains("<think>"), |
| 4327 | "inline reasoning tags must not leak into visible text: {events:?}" |
| 4328 | ); |
| 4329 | } |
| 4330 | |
| 4331 | #[test] |
| 4332 | fn reasoning_style_inline_tags_flushes_unclosed_think_at_stream_end() { |
| 4333 | let events = decode_chunks_with_style( |
| 4334 | &[ |
| 4335 | r#"{"choices":[{"delta":{"content":"Before <think>partial reasoning"}}]}"#, |
| 4336 | r#"{"choices":[{"finish_reason":"stop"}]}"#, |
| 4337 | ], |
| 4338 | ReasoningStreamStyle::InlineTags, |
| 4339 | ); |
| 4340 | |
| 4341 | assert_eq!(thinking_delta_text(&events), "partial reasoning"); |
| 4342 | assert_eq!(text_delta_text(&events), "Before "); |
| 4343 | } |
| 4344 | |
| 4345 | #[test] |
| 4346 | fn reasoning_style_inline_tags_ignores_separate_reasoning_field() { |
| 4347 | let events = decode_chunks_with_style( |
| 4348 | &[ |
| 4349 | r#"{"choices":[{"delta":{"reasoning_content":"metadata","content":"<think>tagged</think> answer"}}]}"#, |
| 4350 | ], |
| 4351 | ReasoningStreamStyle::InlineTags, |
| 4352 | ); |
| 4353 | |
| 4354 | assert_eq!(thinking_delta_text(&events), "tagged"); |
| 4355 | assert_eq!(text_delta_text(&events), " answer"); |
| 4356 | } |
| 4357 | |
| 4358 | #[test] |
| 4359 | fn reasoning_style_none_keeps_inline_tags_visible_text() { |
| 4360 | let events = decode_chunks_with_style( |
| 4361 | &[r#"{"choices":[{"delta":{"content":"<think>visible</think> answer"}}]}"#], |
| 4362 | ReasoningStreamStyle::None, |
| 4363 | ); |
| 4364 | |
| 4365 | assert_eq!(thinking_delta_text(&events), ""); |
| 4366 | assert_eq!(text_delta_text(&events), "<think>visible</think> answer"); |
| 4367 | } |
| 4368 | |
| 4369 | #[test] |
| 4370 | fn configured_reasoning_style_overrides_route_default() { |
| 4371 | assert_eq!( |
| 4372 | reasoning_stream_style_for_stream(ApiProvider::Openai, "custom-minimax", None), |
| 4373 | ReasoningStreamStyle::None |
| 4374 | ); |
| 4375 | assert_eq!( |
| 4376 | reasoning_stream_style_for_stream( |
| 4377 | ApiProvider::Openai, |
| 4378 | "custom-minimax", |
| 4379 | Some("inline-tags") |
| 4380 | ), |
| 4381 | ReasoningStreamStyle::InlineTags |
| 4382 | ); |
| 4383 | assert_eq!( |
| 4384 | reasoning_stream_style_for_stream(ApiProvider::XiaomiMimo, "mimo-v2.5-pro", None), |
| 4385 | ReasoningStreamStyle::SeparateField |
| 4386 | ); |
| 4387 | assert_eq!( |
| 4388 | reasoning_stream_style_for_stream( |
| 4389 | ApiProvider::XiaomiMimo, |
| 4390 | "mimo-v2.5-pro", |
| 4391 | Some("none") |
| 4392 | ), |
| 4393 | ReasoningStreamStyle::None |
| 4394 | ); |
| 4395 | } |
| 4396 | |
| 4397 | #[test] |
| 4398 | fn decoder_yields_no_events_for_keepalive_chunk() { |
| 4399 | // DeepSeek often sends `{"choices":[]}` keepalive chunks before |
| 4400 | // emitting real content. The engine MUST treat a stream error after |
| 4401 | // these as "no content received" and be eligible for transparent |
| 4402 | // retry — assert here that the decoder yields no payload events. |
| 4403 | let events = decode_chunk(r#"{"choices":[]}"#); |
| 4404 | assert!( |
| 4405 | events.is_empty(), |
| 4406 | "empty-choices chunk must produce no events; got {events:?}" |
| 4407 | ); |
| 4408 | } |
| 4409 | |
| 4410 | #[test] |
| 4411 | fn decoder_treats_done_frame_as_terminal() { |
| 4412 | let mut content_index = 0u32; |
| 4413 | let mut text_started = false; |
| 4414 | let mut thinking_started = false; |
| 4415 | let mut tool_indices = std::collections::HashMap::new(); |
| 4416 | let mut reasoning_detail_buffers = std::collections::HashMap::new(); |
| 4417 | let mut inline_reasoning_tags = InlineReasoningTagState::default(); |
| 4418 | |
| 4419 | let outcome = parse_sse_data_frame( |
| 4420 | " [DONE] ", |
| 4421 | &mut content_index, |
| 4422 | &mut text_started, |
| 4423 | &mut thinking_started, |
| 4424 | &mut tool_indices, |
| 4425 | &mut reasoning_detail_buffers, |
| 4426 | &mut inline_reasoning_tags, |
| 4427 | ReasoningStreamStyle::SeparateField, |
| 4428 | ); |
| 4429 | |
| 4430 | assert!( |
| 4431 | matches!(outcome, SseDataFrame::Done), |
| 4432 | "`data: [DONE]` must terminate the stream instead of waiting for the HTTP connection to close" |
| 4433 | ); |
| 4434 | assert_eq!(content_index, 0); |
| 4435 | assert!(!text_started); |
| 4436 | assert!(!thinking_started); |
| 4437 | assert!(tool_indices.is_empty()); |
| 4438 | } |
| 4439 | |
| 4440 | #[test] |
| 4441 | fn decoder_emits_tool_use_block_for_tool_call_delta() { |
| 4442 | // Tool-call deltas are content too — once one arrives, transparent |
| 4443 | // retry must be off (the model has committed to a tool invocation |
| 4444 | // path that DeepSeek has billed for). |
| 4445 | let events = decode_chunk( |
| 4446 | r#"{"choices":[{"delta":{"tool_calls":[{"index":0,"id":"call_1","function":{"name":"grep_files","arguments":"{\"pattern\":\"foo\"}"}}]}}]}"#, |
| 4447 | ); |
| 4448 | assert!( |
| 4449 | events.iter().any(|e| matches!( |
| 4450 | e, |
| 4451 | StreamEvent::ContentBlockStart { |
| 4452 | content_block: ContentBlockStart::ToolUse { name, .. }, |
| 4453 | .. |
| 4454 | } if name == "grep_files" |
| 4455 | )), |
| 4456 | "should open a ToolUse block for grep_files; got {events:?}" |
| 4457 | ); |
| 4458 | assert!( |
| 4459 | events.iter().any(|e| matches!( |
| 4460 | e, |
| 4461 | StreamEvent::ContentBlockDelta { |
| 4462 | delta: Delta::InputJsonDelta { partial_json }, |
| 4463 | .. |
| 4464 | } if partial_json.contains("\"pattern\"") |
| 4465 | )), |
| 4466 | "should yield InputJsonDelta carrying the tool args; got {events:?}" |
| 4467 | ); |
| 4468 | } |
| 4469 | |
| 4470 | #[test] |
| 4471 | fn decoder_uses_fallback_name_for_empty_streaming_tool_name() { |
| 4472 | let events = decode_chunk( |
| 4473 | r#"{"choices":[{"delta":{"tool_calls":[{"index":0,"id":"call_empty","function":{"name":"","arguments":"{}"}}]}}]}"#, |
| 4474 | ); |
| 4475 | |
| 4476 | assert!( |
| 4477 | events.iter().any(|event| matches!( |
| 4478 | event, |
| 4479 | StreamEvent::ContentBlockStart { |
| 4480 | content_block: ContentBlockStart::ToolUse { name, .. }, |
| 4481 | .. |
| 4482 | } if name == "unknown_tool" |
| 4483 | )), |
| 4484 | "empty upstream tool names should render as unknown_tool; got {events:?}" |
| 4485 | ); |
| 4486 | } |
| 4487 | |
| 4488 | #[test] |
| 4489 | fn non_streaming_response_uses_fallback_name_for_missing_tool_name() { |
| 4490 | let payload: Value = serde_json::from_str( |
| 4491 | r#"{ |
| 4492 | "id": "chatcmpl_1", |
| 4493 | "model": "deepseek-v4-pro", |
| 4494 | "choices": [{ |
| 4495 | "message": { |
| 4496 | "role": "assistant", |
| 4497 | "tool_calls": [{ |
| 4498 | "id": "call_missing", |
| 4499 | "function": { "arguments": "{}" } |
| 4500 | }] |
| 4501 | }, |
| 4502 | "finish_reason": "tool_calls" |
| 4503 | }] |
| 4504 | }"#, |
| 4505 | ) |
| 4506 | .expect("valid response"); |
| 4507 | |
| 4508 | let parsed = parse_chat_message(&payload).expect("message parses"); |
| 4509 | let tool_name = parsed.content.iter().find_map(|block| match block { |
| 4510 | ContentBlock::ToolUse { name, .. } => Some(name.as_str()), |
| 4511 | _ => None, |
| 4512 | }); |
| 4513 | |
| 4514 | assert_eq!(tool_name, Some("unknown_tool")); |
| 4515 | } |
| 4516 | |
| 4517 | /// Regression for the parallel-tool-calls-without-id collision (audit |
| 4518 | /// Finding 8): when the upstream chunk omits the `id` field, the |
| 4519 | /// fallback used to be the literal string `"tool_call"` for every |
| 4520 | /// parallel call, so two tool calls in one delta ended up sharing an |
| 4521 | /// id. Downstream routing then matched the first call's tool_result |
| 4522 | /// twice and the second call hung. The fallback is now indexed by the |
| 4523 | /// content-block position, keeping each call unique within the |
| 4524 | /// response. |
| 4525 | #[test] |
| 4526 | fn decoder_assigns_unique_fallback_ids_to_parallel_tool_calls_missing_id() { |
| 4527 | let events = decode_chunk( |
| 4528 | r#"{"choices":[{"delta":{"tool_calls":[ |
| 4529 | {"index":0,"function":{"name":"grep_files","arguments":"{\"pattern\":\"a\"}"}}, |
| 4530 | {"index":1,"function":{"name":"read_file","arguments":"{\"path\":\"x\"}"}} |
| 4531 | ]}}]}"#, |
| 4532 | ); |
| 4533 | |
| 4534 | let ids: Vec<&str> = events |
| 4535 | .iter() |
| 4536 | .filter_map(|e| match e { |
| 4537 | StreamEvent::ContentBlockStart { |
| 4538 | content_block: ContentBlockStart::ToolUse { id, .. }, |
| 4539 | .. |
| 4540 | } => Some(id.as_str()), |
| 4541 | _ => None, |
| 4542 | }) |
| 4543 | .collect(); |
| 4544 | |
| 4545 | assert_eq!( |
| 4546 | ids.len(), |
| 4547 | 2, |
| 4548 | "expected two tool-use blocks for parallel tool calls; got {events:?}" |
| 4549 | ); |
| 4550 | assert_ne!( |
| 4551 | ids[0], ids[1], |
| 4552 | "parallel tool calls without upstream `id` must get distinct fallback ids; got {ids:?}" |
| 4553 | ); |
| 4554 | } |
| 4555 | |
| 4556 | #[test] |
| 4557 | fn decoder_preserves_upstream_tool_call_id_when_present() { |
| 4558 | // Counter-test to the fallback regression: when the upstream chunk |
| 4559 | // does include `id`, we forward it verbatim — we shouldn't quietly |
| 4560 | // rewrite ids the API gave us just because we have a fallback path. |
| 4561 | let events = decode_chunk( |
| 4562 | r#"{"choices":[{"delta":{"tool_calls":[{"index":0,"id":"call_xyz","function":{"name":"grep_files","arguments":"{}"}}]}}]}"#, |
| 4563 | ); |
| 4564 | let id = events |
| 4565 | .iter() |
| 4566 | .find_map(|e| match e { |
| 4567 | StreamEvent::ContentBlockStart { |
| 4568 | content_block: ContentBlockStart::ToolUse { id, .. }, |
| 4569 | .. |
| 4570 | } => Some(id.as_str()), |
| 4571 | _ => None, |
| 4572 | }) |
| 4573 | .expect("tool-use block present"); |
| 4574 | assert_eq!(id, "call_xyz"); |
| 4575 | } |
| 4576 | |
| 4577 | #[test] |
| 4578 | fn request_builder_preserves_internal_system_messages() { |
| 4579 | let messages = vec![Message { |
| 4580 | role: "system".to_string(), |
| 4581 | content: vec![ContentBlock::Text { |
| 4582 | text: "internal runtime event".to_string(), |
| 4583 | cache_control: None, |
| 4584 | }], |
| 4585 | }]; |
| 4586 | |
| 4587 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4588 | |
| 4589 | assert_eq!(built.len(), 1); |
| 4590 | assert_eq!(built[0]["role"], "system"); |
| 4591 | assert_eq!(built[0]["content"], "internal runtime event"); |
| 4592 | } |
| 4593 | |
| 4594 | fn tool_use_message(id: &str, name: &str, input: Value) -> Message { |
| 4595 | Message { |
| 4596 | role: "assistant".to_string(), |
| 4597 | content: vec![ContentBlock::ToolUse { |
| 4598 | id: id.to_string(), |
| 4599 | name: name.to_string(), |
| 4600 | input, |
| 4601 | caller: None, |
| 4602 | }], |
| 4603 | } |
| 4604 | } |
| 4605 | |
| 4606 | fn tool_result_message(id: &str, content: &str) -> Message { |
| 4607 | Message { |
| 4608 | role: "user".to_string(), |
| 4609 | content: vec![ContentBlock::ToolResult { |
| 4610 | tool_use_id: id.to_string(), |
| 4611 | content: content.to_string(), |
| 4612 | is_error: None, |
| 4613 | content_blocks: None, |
| 4614 | }], |
| 4615 | } |
| 4616 | } |
| 4617 | |
| 4618 | fn user_message_with_turn_meta(turn_meta: &str, task: &str) -> Message { |
| 4619 | Message { |
| 4620 | role: "user".to_string(), |
| 4621 | content: vec![ |
| 4622 | ContentBlock::Text { |
| 4623 | text: turn_meta.to_string(), |
| 4624 | cache_control: None, |
| 4625 | }, |
| 4626 | ContentBlock::Text { |
| 4627 | text: task.to_string(), |
| 4628 | cache_control: None, |
| 4629 | }, |
| 4630 | ], |
| 4631 | } |
| 4632 | } |
| 4633 | |
| 4634 | fn user_message_with_tail_turn_meta(task: &str, turn_meta: &str) -> Message { |
| 4635 | Message { |
| 4636 | role: "user".to_string(), |
| 4637 | content: vec![ |
| 4638 | ContentBlock::Text { |
| 4639 | text: task.to_string(), |
| 4640 | cache_control: None, |
| 4641 | }, |
| 4642 | ContentBlock::Text { |
| 4643 | text: turn_meta.to_string(), |
| 4644 | cache_control: None, |
| 4645 | }, |
| 4646 | ], |
| 4647 | } |
| 4648 | } |
| 4649 | |
| 4650 | fn tool_message_content(messages: &[Value], index: usize) -> &str { |
| 4651 | messages |
| 4652 | .iter() |
| 4653 | .filter(|message| message.get("role").and_then(Value::as_str) == Some("tool")) |
| 4654 | .nth(index) |
| 4655 | .and_then(|message| message.get("content").and_then(Value::as_str)) |
| 4656 | .expect("tool message content") |
| 4657 | } |
| 4658 | |
| 4659 | fn user_message_content(messages: &[Value], index: usize) -> &str { |
| 4660 | messages |
| 4661 | .iter() |
| 4662 | .filter(|message| message.get("role").and_then(Value::as_str) == Some("user")) |
| 4663 | .nth(index) |
| 4664 | .and_then(|message| message.get("content").and_then(Value::as_str)) |
| 4665 | .expect("user message content") |
| 4666 | } |
| 4667 | |
| 4668 | fn with_tool_result_sha_spillover_root<T>(f: impl FnOnce() -> T) -> T { |
| 4669 | let _guard = crate::tools::truncate::TEST_SPILLOVER_GUARD |
| 4670 | .lock() |
| 4671 | .unwrap_or_else(|err| err.into_inner()); |
| 4672 | let tmp = tempfile::tempdir().expect("tempdir"); |
| 4673 | let prior = crate::tools::truncate::set_test_spillover_root(Some( |
| 4674 | tmp.path().join(".deepseek").join("tool_outputs"), |
| 4675 | )); |
| 4676 | struct Restore(Option<std::path::PathBuf>); |
| 4677 | impl Drop for Restore { |
| 4678 | fn drop(&mut self) { |
| 4679 | crate::tools::truncate::set_test_spillover_root(self.0.take()); |
| 4680 | } |
| 4681 | } |
| 4682 | let _restore = Restore(prior); |
| 4683 | f() |
| 4684 | } |
| 4685 | |
| 4686 | #[test] |
| 4687 | fn request_builder_deduplicates_consecutive_identical_turn_meta_for_wire() { |
| 4688 | let turn_meta = "<turn_meta>\nCurrent local date: 2026-05-09\n</turn_meta>"; |
| 4689 | let messages = vec![ |
| 4690 | user_message_with_turn_meta(turn_meta, "first task"), |
| 4691 | Message { |
| 4692 | role: "assistant".to_string(), |
| 4693 | content: vec![ContentBlock::Text { |
| 4694 | text: "first answer".to_string(), |
| 4695 | cache_control: None, |
| 4696 | }], |
| 4697 | }, |
| 4698 | user_message_with_turn_meta(turn_meta, "second task"), |
| 4699 | ]; |
| 4700 | |
| 4701 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4702 | let first = user_message_content(&built, 0); |
| 4703 | let second = user_message_content(&built, 1); |
| 4704 | let expected_ref = "<turn_meta_unchanged />"; |
| 4705 | |
| 4706 | assert!(first.starts_with(turn_meta), "got: {first}"); |
| 4707 | assert!(second.starts_with(expected_ref), "got: {second}"); |
| 4708 | assert!(second.ends_with("second task"), "got: {second}"); |
| 4709 | assert_eq!( |
| 4710 | second, |
| 4711 | format!("{expected_ref}\nsecond task"), |
| 4712 | "ref text must stay stable" |
| 4713 | ); |
| 4714 | } |
| 4715 | |
| 4716 | #[test] |
| 4717 | fn request_builder_keeps_tail_turn_meta_after_user_text_for_wire() { |
| 4718 | let turn_meta = "<turn_meta>\nCurrent local date: 2026-05-09\n</turn_meta>"; |
| 4719 | let messages = vec![ |
| 4720 | user_message_with_tail_turn_meta("first task", turn_meta), |
| 4721 | Message { |
| 4722 | role: "assistant".to_string(), |
| 4723 | content: vec![ContentBlock::Text { |
| 4724 | text: "first answer".to_string(), |
| 4725 | cache_control: None, |
| 4726 | }], |
| 4727 | }, |
| 4728 | user_message_with_tail_turn_meta("second task", turn_meta), |
| 4729 | ]; |
| 4730 | |
| 4731 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4732 | let first = user_message_content(&built, 0); |
| 4733 | let second = user_message_content(&built, 1); |
| 4734 | let expected_ref = "<turn_meta_unchanged />"; |
| 4735 | |
| 4736 | assert_eq!(first, format!("first task\n{turn_meta}")); |
| 4737 | assert_eq!(second, format!("second task\n{expected_ref}")); |
| 4738 | } |
| 4739 | |
| 4740 | #[test] |
| 4741 | fn request_builder_keeps_changed_turn_meta_full_and_updates_recent_hash() { |
| 4742 | let first_meta = "<turn_meta>\nCurrent local date: 2026-05-09\n</turn_meta>"; |
| 4743 | let second_meta = |
| 4744 | "<turn_meta>\nCurrent local date: 2026-05-09\nWorking set: src/lib.rs\n</turn_meta>"; |
| 4745 | let messages = vec![ |
| 4746 | user_message_with_turn_meta(first_meta, "first task"), |
| 4747 | user_message_with_turn_meta(second_meta, "second task"), |
| 4748 | ]; |
| 4749 | |
| 4750 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4751 | let first = user_message_content(&built, 0); |
| 4752 | let second = user_message_content(&built, 1); |
| 4753 | |
| 4754 | assert!(first.starts_with(first_meta), "got: {first}"); |
| 4755 | assert!(second.starts_with(second_meta), "got: {second}"); |
| 4756 | assert!(!second.contains("<TURN_META_REF"), "got: {second}"); |
| 4757 | } |
| 4758 | |
| 4759 | #[test] |
| 4760 | fn turn_meta_dedup_is_wire_only_and_does_not_mutate_session_message() { |
| 4761 | let turn_meta = "<turn_meta>\nCurrent local date: 2026-05-09\n</turn_meta>"; |
| 4762 | let messages = vec![ |
| 4763 | user_message_with_turn_meta(turn_meta, "first task"), |
| 4764 | user_message_with_turn_meta(turn_meta, "second task"), |
| 4765 | ]; |
| 4766 | |
| 4767 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4768 | assert!( |
| 4769 | user_message_content(&built, 1).starts_with("<turn_meta_unchanged />"), |
| 4770 | "got: {}", |
| 4771 | user_message_content(&built, 1) |
| 4772 | ); |
| 4773 | |
| 4774 | match &messages[1].content[0] { |
| 4775 | ContentBlock::Text { text, .. } => assert_eq!(text, turn_meta), |
| 4776 | other => panic!("expected text block, got {other:?}"), |
| 4777 | } |
| 4778 | } |
| 4779 | |
| 4780 | #[test] |
| 4781 | fn cache_inspect_reports_turn_meta_dedup_metadata() { |
| 4782 | let turn_meta = format!( |
| 4783 | "<turn_meta>\nCurrent local date: 2026-05-09\n{}\n</turn_meta>", |
| 4784 | "Working set: src/lib.rs\n".repeat(20) |
| 4785 | ); |
| 4786 | let request = MessageRequest { |
| 4787 | model: "deepseek-v4-flash".to_string(), |
| 4788 | messages: vec![ |
| 4789 | user_message_with_turn_meta(&turn_meta, "first task"), |
| 4790 | user_message_with_turn_meta(&turn_meta, "second task"), |
| 4791 | ], |
| 4792 | max_tokens: 0, |
| 4793 | system: None, |
| 4794 | tools: None, |
| 4795 | tool_choice: None, |
| 4796 | metadata: None, |
| 4797 | thinking: None, |
| 4798 | reasoning_effort: None, |
| 4799 | stream: None, |
| 4800 | temperature: None, |
| 4801 | top_p: None, |
| 4802 | }; |
| 4803 | |
| 4804 | let inspection = inspect_prompt_for_request(&request); |
| 4805 | let turn_meta_layers: Vec<_> = inspection |
| 4806 | .layers |
| 4807 | .iter() |
| 4808 | .filter_map(|layer| layer.turn_meta.as_ref()) |
| 4809 | .collect(); |
| 4810 | |
| 4811 | assert_eq!(turn_meta_layers.len(), 2); |
| 4812 | assert_eq!( |
| 4813 | turn_meta_layers[0].original_chars, |
| 4814 | turn_meta.chars().count() |
| 4815 | ); |
| 4816 | assert_eq!(turn_meta_layers[0].sent_chars, turn_meta.chars().count()); |
| 4817 | assert!(!turn_meta_layers[0].deduplicated); |
| 4818 | assert_eq!(turn_meta_layers[0].sha256, sha256_hex(turn_meta.as_bytes())); |
| 4819 | assert_eq!( |
| 4820 | turn_meta_layers[1].original_chars, |
| 4821 | turn_meta.chars().count() |
| 4822 | ); |
| 4823 | assert!(turn_meta_layers[1].sent_chars < turn_meta_layers[1].original_chars); |
| 4824 | assert!(turn_meta_layers[1].deduplicated); |
| 4825 | assert_eq!(turn_meta_layers[1].sha256, turn_meta_layers[0].sha256); |
| 4826 | } |
| 4827 | |
| 4828 | #[test] |
| 4829 | fn request_builder_truncates_large_tool_result_for_wire() { |
| 4830 | let long_output = format!("{}{}", "A".repeat(7_000), "Z".repeat(7_000)); |
| 4831 | let messages = vec![ |
| 4832 | tool_use_message( |
| 4833 | "tool-long", |
| 4834 | "shell_command", |
| 4835 | json!({"command": "cargo test"}), |
| 4836 | ), |
| 4837 | tool_result_message("tool-long", &long_output), |
| 4838 | ]; |
| 4839 | |
| 4840 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4841 | let sent = tool_message_content(&built, 0); |
| 4842 | |
| 4843 | assert!(sent.contains("[TOOL_RESULT_TRUNCATED]"), "got: {sent}"); |
| 4844 | assert!(sent.contains("tool_name: shell_command"), "got: {sent}"); |
| 4845 | assert!(sent.contains("command_or_query: cargo test"), "got: {sent}"); |
| 4846 | assert!(sent.contains("original_chars: 14000"), "got: {sent}"); |
| 4847 | assert!(sent.contains("sha256:"), "got: {sent}"); |
| 4848 | assert!( |
| 4849 | sent.contains("exact_detail: unavailable; no session-owned artifact was recorded"), |
| 4850 | "got: {sent}" |
| 4851 | ); |
| 4852 | assert!(!sent.contains("retrieve_tool_result"), "got: {sent}"); |
| 4853 | assert!(sent.contains(&"A".repeat(4_000)), "got: {sent}"); |
| 4854 | assert!(sent.contains(&"Z".repeat(4_000)), "got: {sent}"); |
| 4855 | assert!( |
| 4856 | sent.contains("truncated 6000 chars from middle"), |
| 4857 | "got: {sent}" |
| 4858 | ); |
| 4859 | assert_ne!(sent, long_output); |
| 4860 | } |
| 4861 | |
| 4862 | #[test] |
| 4863 | fn request_builder_keeps_unowned_extreme_tool_output_bounded_without_false_hint() { |
| 4864 | with_tool_result_sha_spillover_root(|| { |
| 4865 | let huge_output = format!( |
| 4866 | "{}{}{}", |
| 4867 | "DIFF_HEAD\n".repeat(10_000), |
| 4868 | "MIDDLE_POISON\n".repeat(10_000), |
| 4869 | "DIFF_TAIL\n".repeat(10_000) |
| 4870 | ); |
| 4871 | let sha = sha256_hex(huge_output.as_bytes()); |
| 4872 | let messages = vec![ |
| 4873 | tool_use_message("tool-huge", "exec_shell", json!({"command": "git diff"})), |
| 4874 | tool_result_message("tool-huge", &huge_output), |
| 4875 | ]; |
| 4876 | |
| 4877 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4878 | let sent = tool_message_content(&built, 0); |
| 4879 | |
| 4880 | assert!(sent.contains("[TOOL_RESULT_TRUNCATED]"), "got: {sent}"); |
| 4881 | assert!(sent.contains("tool_name: exec_shell"), "got: {sent}"); |
| 4882 | assert!(sent.contains("command_or_query: git diff"), "got: {sent}"); |
| 4883 | assert!(sent.contains(&format!("sha256: {sha}")), "got: {sent}"); |
| 4884 | assert!(sent.contains("exact_detail: unavailable"), "got: {sent}"); |
| 4885 | assert!(!sent.contains("retrieve_tool_result"), "got: {sent}"); |
| 4886 | assert!( |
| 4887 | sent.chars().count() <= TOOL_RESULT_SENT_CHAR_BUDGET, |
| 4888 | "truncated result should stay bounded, sent {} chars", |
| 4889 | sent.chars().count() |
| 4890 | ); |
| 4891 | assert!( |
| 4892 | !sent.contains("MIDDLE_POISON"), |
| 4893 | "omitted middle should not be sent to the next model turn" |
| 4894 | ); |
| 4895 | assert_ne!(sent, huge_output); |
| 4896 | }); |
| 4897 | } |
| 4898 | |
| 4899 | #[test] |
| 4900 | fn request_builder_does_not_dedup_short_tool_results_for_wire() { |
| 4901 | let output = "same tool output"; |
| 4902 | let messages = vec![ |
| 4903 | tool_use_message("tool-1", "read_file", json!({"path": "README.md"})), |
| 4904 | tool_result_message("tool-1", output), |
| 4905 | tool_use_message("tool-2", "read_file", json!({"path": "README.md"})), |
| 4906 | tool_result_message("tool-2", output), |
| 4907 | ]; |
| 4908 | |
| 4909 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4910 | let first = tool_message_content(&built, 0); |
| 4911 | let second = tool_message_content(&built, 1); |
| 4912 | |
| 4913 | assert_eq!(first, output); |
| 4914 | assert_eq!(second, output); |
| 4915 | assert!(!second.contains("<TOOL_RESULT_REF"), "got: {second}"); |
| 4916 | } |
| 4917 | |
| 4918 | #[test] |
| 4919 | fn request_builder_deduplicates_medium_identical_tool_results_to_earlier_message() { |
| 4920 | with_tool_result_sha_spillover_root(|| { |
| 4921 | // 2,000 chars is intentionally above TOOL_RESULT_DEDUP_MIN_CHARS |
| 4922 | // (1,024) but below TOOL_RESULT_SENT_CHAR_BUDGET (12,000). This |
| 4923 | // verifies the cache-saving path for repeated medium outputs that |
| 4924 | // do not otherwise need truncation. |
| 4925 | let output = "A".repeat(2_000); |
| 4926 | let messages = vec![ |
| 4927 | tool_use_message("tool-1", "read_file", json!({"path": "README.md"})), |
| 4928 | tool_result_message("tool-1", &output), |
| 4929 | tool_use_message("tool-2", "read_file", json!({"path": "README.md"})), |
| 4930 | tool_result_message("tool-2", &output), |
| 4931 | ]; |
| 4932 | |
| 4933 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4934 | let first = tool_message_content(&built, 0); |
| 4935 | let second = tool_message_content(&built, 1); |
| 4936 | |
| 4937 | assert_eq!(first, output); |
| 4938 | assert!(!first.contains("[TOOL_RESULT_TRUNCATED]"), "got: {first}"); |
| 4939 | assert!( |
| 4940 | second.starts_with("<TOOL_RESULT_REF sha=\""), |
| 4941 | "got: {second}" |
| 4942 | ); |
| 4943 | assert!( |
| 4944 | second.contains("original_message=\"Message #1\""), |
| 4945 | "got: {second}" |
| 4946 | ); |
| 4947 | assert!(second.contains("chars=\"2000\""), "got: {second}"); |
| 4948 | assert!( |
| 4949 | second |
| 4950 | .contains("source: full content appears in Message #1 earlier in this request"), |
| 4951 | "got: {second}" |
| 4952 | ); |
| 4953 | assert!(!second.contains("retrieve_tool_result"), "got: {second}"); |
| 4954 | }); |
| 4955 | } |
| 4956 | |
| 4957 | #[test] |
| 4958 | fn request_builder_never_dedups_large_identical_write_file_confirmations() { |
| 4959 | with_tool_result_sha_spillover_root(|| { |
| 4960 | // A `write_file` result embeds the unified diff + summary; it is a |
| 4961 | // confirmation, not retrievable data. Two identical >1024-char |
| 4962 | // write_file results must BOTH stay inline — collapsing the second |
| 4963 | // to a SHA ref makes the model lose write-success context and |
| 4964 | // report the file as missing (#1695). |
| 4965 | let output = "A".repeat(2_000); |
| 4966 | let messages = vec![ |
| 4967 | tool_use_message("tool-1", "write_file", json!({"path": "big.txt"})), |
| 4968 | tool_result_message("tool-1", &output), |
| 4969 | tool_use_message("tool-2", "write_file", json!({"path": "big.txt"})), |
| 4970 | tool_result_message("tool-2", &output), |
| 4971 | ]; |
| 4972 | |
| 4973 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 4974 | let first = tool_message_content(&built, 0); |
| 4975 | let second = tool_message_content(&built, 1); |
| 4976 | |
| 4977 | assert_eq!(first, output); |
| 4978 | assert_eq!(second, output); |
| 4979 | assert!(!second.contains("<TOOL_RESULT_REF"), "got: {second}"); |
| 4980 | |
| 4981 | // Non-mutation tools still dedup: an identical medium read_file |
| 4982 | // result points back to the first full message in this request. |
| 4983 | let read_messages = vec![ |
| 4984 | tool_use_message("read-1", "read_file", json!({"path": "README.md"})), |
| 4985 | tool_result_message("read-1", &output), |
| 4986 | tool_use_message("read-2", "read_file", json!({"path": "README.md"})), |
| 4987 | tool_result_message("read-2", &output), |
| 4988 | ]; |
| 4989 | let read_built = build_chat_messages(None, &read_messages, "deepseek-v4-flash"); |
| 4990 | let read_first = tool_message_content(&read_built, 0); |
| 4991 | let read_second = tool_message_content(&read_built, 1); |
| 4992 | assert_eq!(read_first, output); |
| 4993 | assert!( |
| 4994 | read_second.starts_with("<TOOL_RESULT_REF sha=\""), |
| 4995 | "got: {read_second}" |
| 4996 | ); |
| 4997 | assert!(read_second.contains("source: full content appears in Message #1")); |
| 4998 | assert!(!read_second.contains("retrieve_tool_result")); |
| 4999 | }); |
| 5000 | } |
| 5001 | |
| 5002 | #[test] |
| 5003 | fn large_unowned_results_stay_bounded_without_false_retrieval_handles() { |
| 5004 | // The adaptive router normally replaces a large result with a |
| 5005 | // session-owned artifact receipt before this provider-wire fallback. |
| 5006 | // If legacy/raw history reaches here, it may be excerpted but must not |
| 5007 | // advertise the process-wide SHA store as retrievable. |
| 5008 | let big_diff = "D".repeat(20_000); |
| 5009 | let sha = sha256_hex(big_diff.as_bytes()); |
| 5010 | |
| 5011 | let messages = vec![ |
| 5012 | tool_use_message("w-1", "write_file", json!({"path": "huge.rs"})), |
| 5013 | tool_result_message("w-1", &big_diff), |
| 5014 | tool_use_message("w-2", "write_file", json!({"path": "huge.rs"})), |
| 5015 | tool_result_message("w-2", &big_diff), |
| 5016 | ]; |
| 5017 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 5018 | let first = tool_message_content(&built, 0); |
| 5019 | let second = tool_message_content(&built, 1); |
| 5020 | |
| 5021 | // Mutation confirmations are independently excerpted, never deduped. |
| 5022 | assert!( |
| 5023 | first.contains("[TOOL_RESULT_TRUNCATED]"), |
| 5024 | "first should be truncated, got: {first}" |
| 5025 | ); |
| 5026 | assert!( |
| 5027 | !first.contains("<TOOL_RESULT_REF"), |
| 5028 | "first must not be a dedup ref, got: {first}" |
| 5029 | ); |
| 5030 | assert!( |
| 5031 | !second.contains("<TOOL_RESULT_REF"), |
| 5032 | "second identical write_file must stay inline (#1695), got: {second}" |
| 5033 | ); |
| 5034 | assert!( |
| 5035 | second.contains("[TOOL_RESULT_TRUNCATED]"), |
| 5036 | "second should also be inline-truncated, got: {second}" |
| 5037 | ); |
| 5038 | assert!( |
| 5039 | first.contains(&format!("sha256: {sha}")), |
| 5040 | "truncation block should retain an integrity digest, got: {first}" |
| 5041 | ); |
| 5042 | assert!(first.contains("exact_detail: unavailable")); |
| 5043 | assert!(!first.contains("retrieve_tool_result")); |
| 5044 | |
| 5045 | // A huge non-mutation result cannot refer to an earlier *full* message, |
| 5046 | // because both wire messages are excerpts. It therefore stays a |
| 5047 | // truthful bounded excerpt too. |
| 5048 | let read_messages = vec![ |
| 5049 | tool_use_message("r-1", "read_file", json!({"path": "huge.rs"})), |
| 5050 | tool_result_message("r-1", &big_diff), |
| 5051 | tool_use_message("r-2", "read_file", json!({"path": "huge.rs"})), |
| 5052 | tool_result_message("r-2", &big_diff), |
| 5053 | ]; |
| 5054 | let read_built = build_chat_messages(None, &read_messages, "deepseek-v4-flash"); |
| 5055 | let read_second = tool_message_content(&read_built, 1); |
| 5056 | assert!(read_second.contains("[TOOL_RESULT_TRUNCATED]")); |
| 5057 | assert!(!read_second.contains("<TOOL_RESULT_REF")); |
| 5058 | assert!(!read_second.contains("retrieve_tool_result")); |
| 5059 | } |
| 5060 | |
| 5061 | #[test] |
| 5062 | fn tool_result_budget_is_wire_only_and_does_not_mutate_session_message() { |
| 5063 | let long_output = format!("{}{}", "A".repeat(7_000), "Z".repeat(7_000)); |
| 5064 | let messages = vec![ |
| 5065 | tool_use_message( |
| 5066 | "tool-long", |
| 5067 | "shell_command", |
| 5068 | json!({"command": "cargo test"}), |
| 5069 | ), |
| 5070 | tool_result_message("tool-long", &long_output), |
| 5071 | ]; |
| 5072 | |
| 5073 | let built = build_chat_messages(None, &messages, "deepseek-v4-flash"); |
| 5074 | let sent = tool_message_content(&built, 0); |
| 5075 | assert_ne!(sent, long_output); |
| 5076 | |
| 5077 | match &messages[1].content[0] { |
| 5078 | ContentBlock::ToolResult { content, .. } => assert_eq!(content, &long_output), |
| 5079 | other => panic!("expected tool result, got {other:?}"), |
| 5080 | } |
| 5081 | } |
| 5082 | |
| 5083 | #[test] |
| 5084 | fn cache_inspect_reports_bounded_unowned_tool_result_metadata() { |
| 5085 | let long_output = format!("{}{}", "A".repeat(7_000), "Z".repeat(7_000)); |
| 5086 | let request = MessageRequest { |
| 5087 | model: "deepseek-v4-flash".to_string(), |
| 5088 | messages: vec![ |
| 5089 | tool_use_message("tool-1", "shell_command", json!({"command": "cargo test"})), |
| 5090 | tool_result_message("tool-1", &long_output), |
| 5091 | tool_use_message("tool-2", "shell_command", json!({"command": "cargo test"})), |
| 5092 | tool_result_message("tool-2", &long_output), |
| 5093 | ], |
| 5094 | max_tokens: 0, |
| 5095 | system: None, |
| 5096 | tools: None, |
| 5097 | tool_choice: None, |
| 5098 | metadata: None, |
| 5099 | thinking: None, |
| 5100 | reasoning_effort: None, |
| 5101 | stream: None, |
| 5102 | temperature: None, |
| 5103 | top_p: None, |
| 5104 | }; |
| 5105 | |
| 5106 | let inspection = inspect_prompt_for_request(&request); |
| 5107 | let tool_layers: Vec<_> = inspection |
| 5108 | .layers |
| 5109 | .iter() |
| 5110 | .filter_map(|layer| layer.tool_result.as_ref()) |
| 5111 | .collect(); |
| 5112 | |
| 5113 | assert_eq!(tool_layers.len(), 2); |
| 5114 | for layer in tool_layers { |
| 5115 | assert_eq!(layer.original_chars, 14_000); |
| 5116 | assert!(layer.sent_chars < layer.original_chars); |
| 5117 | assert!(layer.truncated); |
| 5118 | assert!(!layer.deduplicated); |
| 5119 | } |
| 5120 | } |
| 5121 | } |
| 5122 | |
| 5123 | #[cfg(test)] |
| 5124 | mod alias_thinking_detection_tests { |
| 5125 | //! Regression coverage for the DeepSeek public model aliases. |
| 5126 | //! |
| 5127 | //! `deepseek-chat` and `deepseek-reasoner` are the canonical alias names |
| 5128 | //! published in DeepSeek's API docs. Server-side they resolve to V4-flash |
| 5129 | //! and V4-pro respectively, both of which have thinking mode enabled by |
| 5130 | //! default. If the TUI does not classify those aliases as reasoning |
| 5131 | //! models, the sanitizer skips replaying `reasoning_content` on tool-call |
| 5132 | //! assistant messages and DeepSeek returns a 400 ("the `reasoning_content` |
| 5133 | //! in the thinking mode must be passed back to the API") on the second |
| 5134 | //! turn. See upstream API docs: |
| 5135 | //! https://api-docs.deepseek.com/guides/thinking_mode |
| 5136 | use super::{ |
| 5137 | ReasoningStreamStyle, apply_direct_moonshot_k3_fixed_sampling, |
| 5138 | apply_inkling_reasoning_effort, apply_kimi_code_k3_reasoning_effort, |
| 5139 | apply_openai_reasoning_effort, apply_provider_token_limit, apply_route_reasoning_controls, |
| 5140 | is_reasoning_model_for_stream, is_reasoning_model_for_stream_on_route, |
| 5141 | provider_accepts_reasoning_content, reasoning_stream_style_for_route, |
| 5142 | requires_reasoning_content, should_replay_reasoning_content, |
| 5143 | should_replay_reasoning_content_for_provider, |
| 5144 | should_replay_reasoning_content_for_provider_on_route, |
| 5145 | }; |
| 5146 | use crate::config::ApiProvider; |
| 5147 | use serde_json::json; |
| 5148 | |
| 5149 | #[test] |
| 5150 | fn aliases_routed_to_v4_require_reasoning_content() { |
| 5151 | // Documented public aliases. |
| 5152 | assert!(requires_reasoning_content("deepseek-chat")); |
| 5153 | assert!(requires_reasoning_content("deepseek-reasoner")); |
| 5154 | // Case-insensitive: users sometimes copy/paste with capitalisation. |
| 5155 | assert!(requires_reasoning_content("DeepSeek-Chat")); |
| 5156 | assert!(requires_reasoning_content("DEEPSEEK-REASONER")); |
| 5157 | } |
| 5158 | |
| 5159 | #[test] |
| 5160 | fn explicit_v4_ids_still_require_reasoning_content() { |
| 5161 | // Direct V4 IDs continue to match (regression guard for the existing |
| 5162 | // `lower.contains("deepseek-v4")` branch). |
| 5163 | assert!(requires_reasoning_content("deepseek-v4-flash")); |
| 5164 | assert!(requires_reasoning_content("deepseek-v4-pro")); |
| 5165 | } |
| 5166 | |
| 5167 | #[test] |
| 5168 | fn non_thinking_aliases_remain_excluded() { |
| 5169 | // Legacy non-thinking IDs and unrelated provider models must not be |
| 5170 | // misclassified, otherwise we would force a placeholder |
| 5171 | // `reasoning_content` on providers that reject the field. |
| 5172 | assert!(!requires_reasoning_content("deepseek-v3")); |
| 5173 | assert!(!requires_reasoning_content("deepseek-coder")); |
| 5174 | assert!(!requires_reasoning_content("qwen3-coder")); |
| 5175 | assert!(!requires_reasoning_content("claude-sonnet-4-6")); |
| 5176 | } |
| 5177 | |
| 5178 | #[test] |
| 5179 | fn alias_prefix_handles_suffixed_variants() { |
| 5180 | // OpenRouter / proxy deployments occasionally suffix the canonical |
| 5181 | // alias (e.g. `deepseek-chat:free`). Those routes still hit V4 |
| 5182 | // server-side, so they must continue to require reasoning_content. |
| 5183 | assert!(requires_reasoning_content("deepseek-chat:free")); |
| 5184 | assert!(requires_reasoning_content("deepseek-reasoner-2025-05")); |
| 5185 | } |
| 5186 | |
| 5187 | #[test] |
| 5188 | fn explicit_reasoning_off_overrides_alias_detection() { |
| 5189 | // `reasoning_effort = "off"` is the documented escape hatch: even when |
| 5190 | // the model is in the thinking family, the user can opt out and the |
| 5191 | // sanitizer must respect that choice. |
| 5192 | assert!(!should_replay_reasoning_content( |
| 5193 | "deepseek-chat", |
| 5194 | Some("off") |
| 5195 | )); |
| 5196 | assert!(!should_replay_reasoning_content( |
| 5197 | "deepseek-reasoner", |
| 5198 | Some("disabled") |
| 5199 | )); |
| 5200 | // Without an explicit override, alias models still trigger replay. |
| 5201 | assert!(should_replay_reasoning_content("deepseek-chat", None)); |
| 5202 | assert!(should_replay_reasoning_content( |
| 5203 | "deepseek-reasoner", |
| 5204 | Some("medium") |
| 5205 | )); |
| 5206 | } |
| 5207 | |
| 5208 | #[test] |
| 5209 | fn generic_openai_provider_does_not_accept_reasoning_content_semantics() { |
| 5210 | assert!(!provider_accepts_reasoning_content(ApiProvider::Openai)); |
| 5211 | assert!(provider_accepts_reasoning_content(ApiProvider::Deepseek)); |
| 5212 | assert!(provider_accepts_reasoning_content(ApiProvider::NvidiaNim)); |
| 5213 | assert!(provider_accepts_reasoning_content(ApiProvider::XiaomiMimo)); |
| 5214 | assert!(provider_accepts_reasoning_content(ApiProvider::Arcee)); |
| 5215 | assert!(provider_accepts_reasoning_content(ApiProvider::Minimax)); |
| 5216 | assert!(provider_accepts_reasoning_content(ApiProvider::Zai)); |
| 5217 | // #3016: Moonshot's native endpoint streams Kimi thinking as |
| 5218 | // reasoning_content. |
| 5219 | assert!(provider_accepts_reasoning_content(ApiProvider::Moonshot)); |
| 5220 | } |
| 5221 | |
| 5222 | /// Alibaba's classic pay-as-you-go DashScope endpoints are genuine |
| 5223 | /// Alibaba Chat Completions hosts serving the same models; before |
| 5224 | /// 2026-08-04 they were missing from the verifier allowlist, so every |
| 5225 | /// reasoning control was silently stripped there (fail-closed feature |
| 5226 | /// loss, not a leak). The intl spelling matches provider_defaults. |
| 5227 | #[test] |
| 5228 | fn classic_dashscope_hosts_are_verified_modelstudio_chat_routes() { |
| 5229 | for base_url in [ |
| 5230 | "https://dashscope.aliyuncs.com/compatible-mode/v1", |
| 5231 | "https://dashscope-intl.aliyuncs.com/compatible-mode/v1", |
| 5232 | "https://dashscope-intl.aliyuncs.com/compatible-mode/v1/", |
| 5233 | ] { |
| 5234 | assert!( |
| 5235 | super::is_exact_modelstudio_chat_route(ApiProvider::ModelstudioTokenPlan, base_url), |
| 5236 | "{base_url}" |
| 5237 | ); |
| 5238 | let mut body = json!({}); |
| 5239 | apply_route_reasoning_controls( |
| 5240 | &mut body, |
| 5241 | ApiProvider::ModelstudioTokenPlan, |
| 5242 | base_url, |
| 5243 | "qwen3.7-plus", |
| 5244 | Some("off"), |
| 5245 | ); |
| 5246 | assert_eq!(body["enable_thinking"], json!(false), "{base_url}: {body}"); |
| 5247 | } |
| 5248 | // Lookalike hosts stay unverified — fail closed. |
| 5249 | for base_url in [ |
| 5250 | "https://dashscope.aliyuncs.com.evil.example/compatible-mode/v1", |
| 5251 | "https://notdashscope.aliyuncs.com/compatible-mode/v1", |
| 5252 | "https://dashscope.aliyuncs.com/other-path/v1", |
| 5253 | ] { |
| 5254 | assert!( |
| 5255 | !super::is_exact_modelstudio_chat_route( |
| 5256 | ApiProvider::ModelstudioTokenPlan, |
| 5257 | base_url |
| 5258 | ), |
| 5259 | "{base_url}" |
| 5260 | ); |
| 5261 | } |
| 5262 | } |
| 5263 | |
| 5264 | #[test] |
| 5265 | fn modelstudio_hybrid_routes_send_documented_thinking_controls() { |
| 5266 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5267 | for (effort, enabled) in [ |
| 5268 | (None, true), |
| 5269 | (Some("low"), true), |
| 5270 | (Some("high"), true), |
| 5271 | (Some("xhigh"), true), |
| 5272 | (Some("off"), false), |
| 5273 | ] { |
| 5274 | let mut body = json!({}); |
| 5275 | apply_route_reasoning_controls( |
| 5276 | &mut body, |
| 5277 | ApiProvider::ModelstudioTokenPlan, |
| 5278 | base_url, |
| 5279 | "qwen3.7-plus", |
| 5280 | effort, |
| 5281 | ); |
| 5282 | |
| 5283 | assert_eq!(body["enable_thinking"], json!(enabled), "{effort:?}"); |
| 5284 | assert_eq!(body["preserve_thinking"], json!(enabled), "{effort:?}"); |
| 5285 | assert!(body.get("thinking").is_none(), "{effort:?}: {body}"); |
| 5286 | assert!(body.get("reasoning_effort").is_none(), "{effort:?}: {body}"); |
| 5287 | } |
| 5288 | } |
| 5289 | |
| 5290 | #[test] |
| 5291 | fn modelstudio_deepseek_v4_maps_effort_to_documented_values() { |
| 5292 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5293 | for (requested, expected) in [("low", "high"), ("high", "high"), ("xhigh", "max")] { |
| 5294 | let mut body = json!({}); |
| 5295 | apply_route_reasoning_controls( |
| 5296 | &mut body, |
| 5297 | ApiProvider::ModelstudioTokenPlan, |
| 5298 | base_url, |
| 5299 | "deepseek-v4-pro", |
| 5300 | Some(requested), |
| 5301 | ); |
| 5302 | |
| 5303 | assert_eq!(body["enable_thinking"], json!(true), "{requested}"); |
| 5304 | assert_eq!(body["reasoning_effort"], json!(expected), "{requested}"); |
| 5305 | } |
| 5306 | } |
| 5307 | |
| 5308 | #[test] |
| 5309 | fn modelstudio_reasoning_controls_fail_closed_on_custom_gateways() { |
| 5310 | let mut body = json!({ |
| 5311 | "enable_thinking": true, |
| 5312 | "preserve_thinking": true, |
| 5313 | "reasoning_effort": "high", |
| 5314 | }); |
| 5315 | apply_route_reasoning_controls( |
| 5316 | &mut body, |
| 5317 | ApiProvider::ModelstudioTokenPlan, |
| 5318 | "https://proxy.example/v1", |
| 5319 | "qwen3.7-plus", |
| 5320 | Some("high"), |
| 5321 | ); |
| 5322 | |
| 5323 | assert!(body.get("enable_thinking").is_none()); |
| 5324 | assert!(body.get("preserve_thinking").is_none()); |
| 5325 | assert!(body.get("reasoning_effort").is_none()); |
| 5326 | } |
| 5327 | |
| 5328 | #[test] |
| 5329 | fn modelstudio_anthropic_identities_write_nothing_on_the_chat_path() { |
| 5330 | // The Messages adapter owns these two. If `wire = "openai"` ever routes |
| 5331 | // them through Chat Completions, the shaper must strip rather than |
| 5332 | // inherit the OpenAI-dialect fields — there is no provider-enum writer |
| 5333 | // left to re-add them. |
| 5334 | for provider in [ |
| 5335 | ApiProvider::ModelstudioTokenPlanAnthropic, |
| 5336 | ApiProvider::ModelstudioCodingPlanAnthropic, |
| 5337 | ] { |
| 5338 | for base_url in [ |
| 5339 | crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL, |
| 5340 | crate::config::MODELSTUDIO_TOKEN_PLAN_ANTHROPIC_BASE_URL, |
| 5341 | ] { |
| 5342 | let mut body = json!({ "enable_thinking": true }); |
| 5343 | apply_route_reasoning_controls( |
| 5344 | &mut body, |
| 5345 | provider, |
| 5346 | base_url, |
| 5347 | "qwen3.7-plus", |
| 5348 | Some("high"), |
| 5349 | ); |
| 5350 | assert_eq!(body, json!({}), "{provider:?} {base_url}"); |
| 5351 | } |
| 5352 | } |
| 5353 | } |
| 5354 | |
| 5355 | #[test] |
| 5356 | fn modelstudio_qwen38_route_classifies_reasoning_and_replays_history() { |
| 5357 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5358 | for model in ["qwen3.8-max", "qwen3.8-max-preview"] { |
| 5359 | // qwen3.8 is thinking-only. Effort selection must never hide its |
| 5360 | // separate reasoning stream, including the stale `off` state |
| 5361 | // that can arrive before route normalization. |
| 5362 | assert_eq!( |
| 5363 | reasoning_stream_style_for_route( |
| 5364 | ApiProvider::ModelstudioTokenPlan, |
| 5365 | base_url, |
| 5366 | model, |
| 5367 | None, |
| 5368 | ), |
| 5369 | ReasoningStreamStyle::SeparateField, |
| 5370 | "{model}" |
| 5371 | ); |
| 5372 | for effort in [None, Some("off"), Some("high"), Some("xhigh")] { |
| 5373 | assert!( |
| 5374 | should_replay_reasoning_content_for_provider_on_route( |
| 5375 | ApiProvider::ModelstudioTokenPlan, |
| 5376 | base_url, |
| 5377 | model, |
| 5378 | effort, |
| 5379 | ), |
| 5380 | "{model} {effort:?}" |
| 5381 | ); |
| 5382 | } |
| 5383 | // ...and no enable/disable switch is ever sent for them. |
| 5384 | let mut body = json!({}); |
| 5385 | apply_route_reasoning_controls( |
| 5386 | &mut body, |
| 5387 | ApiProvider::ModelstudioTokenPlan, |
| 5388 | base_url, |
| 5389 | model, |
| 5390 | Some("off"), |
| 5391 | ); |
| 5392 | assert!(body.get("enable_thinking").is_none(), "{model}: {body}"); |
| 5393 | } |
| 5394 | } |
| 5395 | |
| 5396 | #[test] |
| 5397 | fn modelstudio_hybrid_route_classifies_reasoning_and_replays_history() { |
| 5398 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5399 | assert_eq!( |
| 5400 | reasoning_stream_style_for_route( |
| 5401 | ApiProvider::ModelstudioTokenPlan, |
| 5402 | base_url, |
| 5403 | "qwen3.7-plus", |
| 5404 | None, |
| 5405 | ), |
| 5406 | ReasoningStreamStyle::SeparateField, |
| 5407 | ); |
| 5408 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5409 | ApiProvider::ModelstudioTokenPlan, |
| 5410 | base_url, |
| 5411 | "qwen3.7-plus", |
| 5412 | None, |
| 5413 | )); |
| 5414 | assert!(!should_replay_reasoning_content_for_provider_on_route( |
| 5415 | ApiProvider::ModelstudioTokenPlan, |
| 5416 | base_url, |
| 5417 | "qwen3.7-plus", |
| 5418 | Some("off"), |
| 5419 | )); |
| 5420 | } |
| 5421 | |
| 5422 | #[test] |
| 5423 | fn modelstudio_replay_stays_narrow_until_a_live_key_confirms_it() { |
| 5424 | // Deliberately narrower than PR #5233: only `preserve_thinking` models |
| 5425 | // replay. GLM and DeepSeek-V3.x on Model Studio stay stripped until |
| 5426 | // someone with a key confirms DashScope accepts `reasoning_content` in |
| 5427 | // input messages. deepseek-v4* is unaffected — it replays through |
| 5428 | // `requires_reasoning_content` on every provider. |
| 5429 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5430 | for model in ["glm-5.2", "deepseek-v3.2", "deepseek-v3.1"] { |
| 5431 | assert!( |
| 5432 | !should_replay_reasoning_content_for_provider_on_route( |
| 5433 | ApiProvider::ModelstudioTokenPlan, |
| 5434 | base_url, |
| 5435 | model, |
| 5436 | None, |
| 5437 | ), |
| 5438 | "{model}" |
| 5439 | ); |
| 5440 | } |
| 5441 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5442 | ApiProvider::ModelstudioTokenPlan, |
| 5443 | base_url, |
| 5444 | "deepseek-v4-pro", |
| 5445 | None, |
| 5446 | )); |
| 5447 | } |
| 5448 | |
| 5449 | #[test] |
| 5450 | fn modelstudio_coding_plan_chat_route_is_classified_for_all_supported_identities() { |
| 5451 | // The picker represents Coding Plan as mode = "coding-plan" under |
| 5452 | // the primary provider id, so the chat client receives |
| 5453 | // ModelstudioTokenPlan with the Coding Plan URL. Direct configuration |
| 5454 | // also retains the legacy ModelstudioCodingPlan identity. |
| 5455 | let base_url = crate::config::DEFAULT_MODELSTUDIO_CODING_PLAN_BASE_URL; |
| 5456 | for provider in [ |
| 5457 | ApiProvider::ModelstudioTokenPlan, |
| 5458 | ApiProvider::ModelstudioCodingPlan, |
| 5459 | ] { |
| 5460 | let mut body = json!({}); |
| 5461 | apply_route_reasoning_controls( |
| 5462 | &mut body, |
| 5463 | provider, |
| 5464 | base_url, |
| 5465 | "qwen3.7-plus", |
| 5466 | Some("high"), |
| 5467 | ); |
| 5468 | |
| 5469 | assert_eq!(body["enable_thinking"], json!(true), "{provider:?}"); |
| 5470 | assert_eq!(body["preserve_thinking"], json!(true), "{provider:?}"); |
| 5471 | assert_eq!( |
| 5472 | reasoning_stream_style_for_route(provider, base_url, "qwen3.7-plus", None), |
| 5473 | ReasoningStreamStyle::SeparateField, |
| 5474 | "{provider:?}", |
| 5475 | ); |
| 5476 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5477 | provider, |
| 5478 | base_url, |
| 5479 | "qwen3.7-plus", |
| 5480 | None, |
| 5481 | )); |
| 5482 | } |
| 5483 | } |
| 5484 | |
| 5485 | #[test] |
| 5486 | fn modelstudio_workspace_scoped_token_plan_route_is_recognized() { |
| 5487 | let workspace_url = |
| 5488 | "https://workspace-123.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1"; |
| 5489 | assert_eq!( |
| 5490 | reasoning_stream_style_for_route( |
| 5491 | ApiProvider::ModelstudioTokenPlan, |
| 5492 | workspace_url, |
| 5493 | "qwen3.8-max", |
| 5494 | None, |
| 5495 | ), |
| 5496 | ReasoningStreamStyle::SeparateField, |
| 5497 | ); |
| 5498 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5499 | ApiProvider::ModelstudioTokenPlan, |
| 5500 | workspace_url, |
| 5501 | "qwen3.8-max", |
| 5502 | None, |
| 5503 | )); |
| 5504 | } |
| 5505 | |
| 5506 | #[test] |
| 5507 | fn modelstudio_kimi_k27_code_is_thinking_only_and_preserves_trace() { |
| 5508 | // NOTE: unlike the qwen3.8 pair, this classification is asserted by |
| 5509 | // PR #5233 rather than corroborated by models_dev.bundled.json, which |
| 5510 | // lists kimi-k2.7-code with `reasoning: true` and no `always_on`. |
| 5511 | let base_url = crate::config::DEFAULT_MODELSTUDIO_TOKEN_PLAN_BASE_URL; |
| 5512 | let mut body = json!({}); |
| 5513 | apply_route_reasoning_controls( |
| 5514 | &mut body, |
| 5515 | ApiProvider::ModelstudioTokenPlan, |
| 5516 | base_url, |
| 5517 | "kimi-k2.7-code", |
| 5518 | Some("off"), |
| 5519 | ); |
| 5520 | |
| 5521 | assert!(body.get("enable_thinking").is_none()); |
| 5522 | assert_eq!(body["preserve_thinking"], json!(true)); |
| 5523 | assert_eq!( |
| 5524 | reasoning_stream_style_for_route( |
| 5525 | ApiProvider::ModelstudioTokenPlan, |
| 5526 | base_url, |
| 5527 | "kimi-k2.7-code", |
| 5528 | None, |
| 5529 | ), |
| 5530 | ReasoningStreamStyle::SeparateField, |
| 5531 | ); |
| 5532 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5533 | ApiProvider::ModelstudioTokenPlan, |
| 5534 | base_url, |
| 5535 | "kimi-k2.7-code", |
| 5536 | Some("off"), |
| 5537 | )); |
| 5538 | } |
| 5539 | |
| 5540 | #[test] |
| 5541 | fn stream_classifies_moonshot_kimi_as_reasoning() { |
| 5542 | // #3016: without this, Kimi thinking leaked into answer text. |
| 5543 | assert!(is_reasoning_model_for_stream( |
| 5544 | ApiProvider::Moonshot, |
| 5545 | "kimi-k2.6" |
| 5546 | )); |
| 5547 | assert!( |
| 5548 | is_reasoning_model_for_stream(ApiProvider::Moonshot, "kimi-for-coding"), |
| 5549 | "Kimi Code's stable model id now maps to K2.7 Code and streams reasoning_content" |
| 5550 | ); |
| 5551 | } |
| 5552 | |
| 5553 | #[test] |
| 5554 | fn moonshot_and_minimax_replay_reasoning_content_for_supported_models() { |
| 5555 | assert!(should_replay_reasoning_content_for_provider( |
| 5556 | ApiProvider::Moonshot, |
| 5557 | "kimi-k2.7-code", |
| 5558 | None, |
| 5559 | )); |
| 5560 | assert!(should_replay_reasoning_content_for_provider( |
| 5561 | ApiProvider::Moonshot, |
| 5562 | "kimi-for-coding", |
| 5563 | None, |
| 5564 | )); |
| 5565 | assert!(should_replay_reasoning_content_for_provider( |
| 5566 | ApiProvider::Minimax, |
| 5567 | "MiniMax-M3", |
| 5568 | None, |
| 5569 | )); |
| 5570 | assert!(should_replay_reasoning_content_for_provider( |
| 5571 | ApiProvider::Zai, |
| 5572 | "GLM-5.2", |
| 5573 | None, |
| 5574 | )); |
| 5575 | assert!(should_replay_reasoning_content_for_provider( |
| 5576 | ApiProvider::Zai, |
| 5577 | "GLM-5.3", |
| 5578 | None, |
| 5579 | )); |
| 5580 | assert!(!should_replay_reasoning_content_for_provider( |
| 5581 | ApiProvider::Moonshot, |
| 5582 | "kimi-for-coding", |
| 5583 | Some("off"), |
| 5584 | )); |
| 5585 | } |
| 5586 | |
| 5587 | #[test] |
| 5588 | fn bare_k3_reasoning_semantics_are_scoped_to_exact_kimi_code_route() { |
| 5589 | let kimi_code = crate::config::DEFAULT_KIMI_CODE_BASE_URL; |
| 5590 | let direct_moonshot = crate::config::DEFAULT_MOONSHOT_BASE_URL; |
| 5591 | |
| 5592 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5593 | ApiProvider::Moonshot, |
| 5594 | kimi_code, |
| 5595 | crate::config::KIMI_CODE_K3_MODEL, |
| 5596 | Some("high"), |
| 5597 | )); |
| 5598 | assert!(is_reasoning_model_for_stream_on_route( |
| 5599 | ApiProvider::Moonshot, |
| 5600 | kimi_code, |
| 5601 | crate::config::KIMI_CODE_K3_MODEL, |
| 5602 | )); |
| 5603 | assert_eq!( |
| 5604 | reasoning_stream_style_for_route( |
| 5605 | ApiProvider::Moonshot, |
| 5606 | kimi_code, |
| 5607 | crate::config::KIMI_CODE_K3_MODEL, |
| 5608 | None, |
| 5609 | ), |
| 5610 | ReasoningStreamStyle::SeparateField |
| 5611 | ); |
| 5612 | |
| 5613 | assert!(!should_replay_reasoning_content_for_provider_on_route( |
| 5614 | ApiProvider::Moonshot, |
| 5615 | direct_moonshot, |
| 5616 | crate::config::KIMI_CODE_K3_MODEL, |
| 5617 | Some("high"), |
| 5618 | )); |
| 5619 | assert!(!is_reasoning_model_for_stream_on_route( |
| 5620 | ApiProvider::Moonshot, |
| 5621 | direct_moonshot, |
| 5622 | crate::config::KIMI_CODE_K3_MODEL, |
| 5623 | )); |
| 5624 | assert_eq!( |
| 5625 | reasoning_stream_style_for_route( |
| 5626 | ApiProvider::Moonshot, |
| 5627 | direct_moonshot, |
| 5628 | crate::config::KIMI_CODE_K3_MODEL, |
| 5629 | None, |
| 5630 | ), |
| 5631 | ReasoningStreamStyle::None |
| 5632 | ); |
| 5633 | assert!( |
| 5634 | should_replay_reasoning_content_for_provider_on_route( |
| 5635 | ApiProvider::Moonshot, |
| 5636 | kimi_code, |
| 5637 | crate::config::KIMI_CODE_K3_MODEL, |
| 5638 | Some("off"), |
| 5639 | ), |
| 5640 | "exact membership K3 stays always-thinking even for a stale raw Off caller" |
| 5641 | ); |
| 5642 | } |
| 5643 | |
| 5644 | #[test] |
| 5645 | fn direct_moonshot_k3_is_always_thinking_and_replays_reasoning() { |
| 5646 | let direct = crate::config::DEFAULT_MOONSHOT_BASE_URL; |
| 5647 | let model = crate::config::MOONSHOT_KIMI_K3_MODEL; |
| 5648 | |
| 5649 | for effort in [Some("off"), Some("low"), Some("high"), Some("max"), None] { |
| 5650 | assert!(should_replay_reasoning_content_for_provider_on_route( |
| 5651 | ApiProvider::Moonshot, |
| 5652 | direct, |
| 5653 | model, |
| 5654 | effort, |
| 5655 | )); |
| 5656 | } |
| 5657 | assert_eq!( |
| 5658 | reasoning_stream_style_for_route(ApiProvider::Moonshot, direct, model, None), |
| 5659 | ReasoningStreamStyle::SeparateField |
| 5660 | ); |
| 5661 | } |
| 5662 | |
| 5663 | #[test] |
| 5664 | fn xiaomi_mimo_uses_max_completion_tokens_payload_key() { |
| 5665 | let mut body = json!({ |
| 5666 | "model": "mimo-v2.5-pro", |
| 5667 | "messages": [], |
| 5668 | "max_tokens": 8192, |
| 5669 | }); |
| 5670 | |
| 5671 | apply_provider_token_limit( |
| 5672 | &mut body, |
| 5673 | ApiProvider::XiaomiMimo, |
| 5674 | "https://api.xiaomimimo.com/v1", |
| 5675 | "mimo-v2.5-pro", |
| 5676 | 8192, |
| 5677 | ); |
| 5678 | |
| 5679 | assert!(body.get("max_tokens").is_none()); |
| 5680 | assert_eq!( |
| 5681 | body.get("max_completion_tokens") |
| 5682 | .and_then(serde_json::Value::as_u64), |
| 5683 | Some(8192) |
| 5684 | ); |
| 5685 | } |
| 5686 | |
| 5687 | #[test] |
| 5688 | fn openai_reasoning_model_uses_completion_token_limit_and_effort_field() { |
| 5689 | let mut body = json!({ |
| 5690 | "model": "gpt-5.5", |
| 5691 | "messages": [], |
| 5692 | "max_tokens": 4096, |
| 5693 | }); |
| 5694 | |
| 5695 | apply_provider_token_limit( |
| 5696 | &mut body, |
| 5697 | ApiProvider::Openai, |
| 5698 | "https://api.openai.com/v1", |
| 5699 | "gpt-5.5", |
| 5700 | 4096, |
| 5701 | ); |
| 5702 | apply_openai_reasoning_effort(&mut body, ApiProvider::Openai, "gpt-5.5", Some("high")); |
| 5703 | |
| 5704 | assert!(body.get("max_tokens").is_none()); |
| 5705 | assert_eq!( |
| 5706 | body.get("max_completion_tokens") |
| 5707 | .and_then(serde_json::Value::as_u64), |
| 5708 | Some(4096) |
| 5709 | ); |
| 5710 | assert_eq!( |
| 5711 | body.get("reasoning_effort") |
| 5712 | .and_then(serde_json::Value::as_str), |
| 5713 | Some("high") |
| 5714 | ); |
| 5715 | } |
| 5716 | |
| 5717 | #[test] |
| 5718 | fn gpt_56_uses_documented_max_reasoning_effort() { |
| 5719 | let mut body = json!({ |
| 5720 | "model": "gpt-5.6-sol", |
| 5721 | "messages": [], |
| 5722 | "max_tokens": 8192, |
| 5723 | }); |
| 5724 | |
| 5725 | apply_provider_token_limit( |
| 5726 | &mut body, |
| 5727 | ApiProvider::Openai, |
| 5728 | "https://api.openai.com/v1", |
| 5729 | "gpt-5.6-sol", |
| 5730 | 8192, |
| 5731 | ); |
| 5732 | apply_openai_reasoning_effort(&mut body, ApiProvider::Openai, "gpt-5.6-sol", Some("max")); |
| 5733 | |
| 5734 | assert!(body.get("max_tokens").is_none()); |
| 5735 | assert_eq!(body["max_completion_tokens"], json!(8192)); |
| 5736 | assert_eq!(body["reasoning_effort"], json!("max")); |
| 5737 | } |
| 5738 | |
| 5739 | #[test] |
| 5740 | fn inkling_uses_its_exact_reasoning_vocabulary_without_thinking_extension() { |
| 5741 | for (requested, expected) in [ |
| 5742 | ("off", "none"), |
| 5743 | ("minimal", "minimal"), |
| 5744 | ("low", "low"), |
| 5745 | ("medium", "medium"), |
| 5746 | ("high", "high"), |
| 5747 | ("max", "max"), |
| 5748 | ("xhigh", "max"), |
| 5749 | ] { |
| 5750 | let mut body = json!({ |
| 5751 | "thinking": { "type": "enabled" }, |
| 5752 | "reasoning_effort": "xhigh", |
| 5753 | }); |
| 5754 | |
| 5755 | apply_inkling_reasoning_effort( |
| 5756 | &mut body, |
| 5757 | ApiProvider::Together, |
| 5758 | "thinkingmachines/inkling", |
| 5759 | Some(requested), |
| 5760 | ); |
| 5761 | |
| 5762 | assert_eq!(body["reasoning_effort"], json!(expected)); |
| 5763 | assert!(body.get("thinking").is_none()); |
| 5764 | } |
| 5765 | } |
| 5766 | |
| 5767 | #[test] |
| 5768 | fn inkling_reasoning_override_is_scoped_to_the_exact_together_route() { |
| 5769 | let mut other_model = json!({ "thinking": { "type": "enabled" } }); |
| 5770 | apply_inkling_reasoning_effort( |
| 5771 | &mut other_model, |
| 5772 | ApiProvider::Together, |
| 5773 | "deepseek-ai/DeepSeek-V4-Pro", |
| 5774 | Some("max"), |
| 5775 | ); |
| 5776 | assert_eq!(other_model["thinking"]["type"], json!("enabled")); |
| 5777 | assert!(other_model.get("reasoning_effort").is_none()); |
| 5778 | |
| 5779 | let mut other_provider = json!({ "thinking": { "type": "enabled" } }); |
| 5780 | apply_inkling_reasoning_effort( |
| 5781 | &mut other_provider, |
| 5782 | ApiProvider::Openrouter, |
| 5783 | "thinkingmachines/inkling", |
| 5784 | Some("max"), |
| 5785 | ); |
| 5786 | assert_eq!(other_provider["thinking"]["type"], json!("enabled")); |
| 5787 | assert!(other_provider.get("reasoning_effort").is_none()); |
| 5788 | } |
| 5789 | |
| 5790 | #[test] |
| 5791 | fn kimi_code_k3_uses_documented_nested_thinking_effort() { |
| 5792 | for (requested, expected) in [ |
| 5793 | ("low", json!({ "type": "enabled", "effort": "low" })), |
| 5794 | ("minimum", json!({ "type": "enabled", "effort": "low" })), |
| 5795 | ("light", json!({ "type": "enabled", "effort": "low" })), |
| 5796 | ("medium", json!({ "type": "enabled", "effort": "high" })), |
| 5797 | ("high", json!({ "type": "enabled", "effort": "high" })), |
| 5798 | ("xhigh", json!({ "type": "enabled", "effort": "max" })), |
| 5799 | ("ultra", json!({ "type": "enabled", "effort": "max" })), |
| 5800 | ("max", json!({ "type": "enabled", "effort": "max" })), |
| 5801 | ("none", json!({ "type": "enabled", "effort": "low" })), |
| 5802 | ("off", json!({ "type": "enabled", "effort": "low" })), |
| 5803 | ] { |
| 5804 | let mut body = json!({ "reasoning_effort": "stale" }); |
| 5805 | apply_kimi_code_k3_reasoning_effort( |
| 5806 | &mut body, |
| 5807 | ApiProvider::Moonshot, |
| 5808 | crate::config::DEFAULT_KIMI_CODE_BASE_URL, |
| 5809 | crate::config::KIMI_CODE_K3_MODEL, |
| 5810 | Some(requested), |
| 5811 | ); |
| 5812 | |
| 5813 | assert_eq!(body["thinking"], expected, "requested {requested}"); |
| 5814 | assert!(body.get("reasoning_effort").is_none()); |
| 5815 | } |
| 5816 | } |
| 5817 | |
| 5818 | #[test] |
| 5819 | fn direct_moonshot_k3_uses_top_level_effort_and_never_disables_thinking() { |
| 5820 | for (requested, expected) in [ |
| 5821 | ("off", "low"), |
| 5822 | ("none", "low"), |
| 5823 | ("low", "low"), |
| 5824 | ("medium", "high"), |
| 5825 | ("high", "high"), |
| 5826 | ("xhigh", "max"), |
| 5827 | ("max", "max"), |
| 5828 | ] { |
| 5829 | let mut body = json!({ |
| 5830 | "model": crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5831 | "thinking": { "type": "disabled" }, |
| 5832 | }); |
| 5833 | apply_route_reasoning_controls( |
| 5834 | &mut body, |
| 5835 | ApiProvider::Moonshot, |
| 5836 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 5837 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5838 | Some(requested), |
| 5839 | ); |
| 5840 | |
| 5841 | assert_eq!(body["reasoning_effort"], json!(expected), "{requested}"); |
| 5842 | assert!(body.get("thinking").is_none(), "{requested}: {body}"); |
| 5843 | } |
| 5844 | |
| 5845 | let mut provider_default = json!({ "thinking": { "type": "enabled" } }); |
| 5846 | apply_route_reasoning_controls( |
| 5847 | &mut provider_default, |
| 5848 | ApiProvider::Moonshot, |
| 5849 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 5850 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5851 | Some("auto"), |
| 5852 | ); |
| 5853 | assert!(provider_default.get("thinking").is_none()); |
| 5854 | assert!(provider_default.get("reasoning_effort").is_none()); |
| 5855 | } |
| 5856 | |
| 5857 | #[test] |
| 5858 | fn direct_moonshot_k3_uses_modern_token_field_and_fixed_sampling_only_on_exact_route() { |
| 5859 | let mut direct = json!({ |
| 5860 | "max_tokens": 64, |
| 5861 | "temperature": 0.2, |
| 5862 | "top_p": 0.9, |
| 5863 | }); |
| 5864 | apply_provider_token_limit( |
| 5865 | &mut direct, |
| 5866 | ApiProvider::Moonshot, |
| 5867 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 5868 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5869 | 64, |
| 5870 | ); |
| 5871 | apply_direct_moonshot_k3_fixed_sampling( |
| 5872 | &mut direct, |
| 5873 | ApiProvider::Moonshot, |
| 5874 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 5875 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5876 | ); |
| 5877 | assert_eq!(direct["max_completion_tokens"], json!(64)); |
| 5878 | assert!(direct.get("max_tokens").is_none()); |
| 5879 | assert!(direct.get("temperature").is_none()); |
| 5880 | assert!(direct.get("top_p").is_none()); |
| 5881 | |
| 5882 | let mut neighbor = json!({ |
| 5883 | "max_tokens": 64, |
| 5884 | "temperature": 0.2, |
| 5885 | "top_p": 0.9, |
| 5886 | }); |
| 5887 | apply_provider_token_limit( |
| 5888 | &mut neighbor, |
| 5889 | ApiProvider::Moonshot, |
| 5890 | "https://proxy.example/v1", |
| 5891 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5892 | 64, |
| 5893 | ); |
| 5894 | apply_direct_moonshot_k3_fixed_sampling( |
| 5895 | &mut neighbor, |
| 5896 | ApiProvider::Moonshot, |
| 5897 | "https://proxy.example/v1", |
| 5898 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5899 | ); |
| 5900 | assert_eq!(neighbor["max_tokens"], json!(64)); |
| 5901 | assert!(neighbor.get("max_completion_tokens").is_none()); |
| 5902 | assert_eq!(neighbor["temperature"], json!(0.2)); |
| 5903 | assert_eq!(neighbor["top_p"], json!(0.9)); |
| 5904 | } |
| 5905 | |
| 5906 | #[test] |
| 5907 | fn direct_and_membership_k3_reasoning_dialects_do_not_cross_routes() { |
| 5908 | let mut membership = json!({}); |
| 5909 | apply_route_reasoning_controls( |
| 5910 | &mut membership, |
| 5911 | ApiProvider::Moonshot, |
| 5912 | crate::config::DEFAULT_KIMI_CODE_BASE_URL, |
| 5913 | crate::config::KIMI_CODE_K3_MODEL, |
| 5914 | Some("max"), |
| 5915 | ); |
| 5916 | assert_eq!( |
| 5917 | membership["thinking"], |
| 5918 | json!({ "type": "enabled", "effort": "max" }) |
| 5919 | ); |
| 5920 | assert!(membership.get("reasoning_effort").is_none()); |
| 5921 | |
| 5922 | for (base_url, model) in [ |
| 5923 | ( |
| 5924 | crate::config::DEFAULT_KIMI_CODE_BASE_URL, |
| 5925 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5926 | ), |
| 5927 | ( |
| 5928 | crate::config::DEFAULT_MOONSHOT_BASE_URL, |
| 5929 | crate::config::KIMI_CODE_K3_MODEL, |
| 5930 | ), |
| 5931 | ( |
| 5932 | "https://proxy.example/v1", |
| 5933 | crate::config::MOONSHOT_KIMI_K3_MODEL, |
| 5934 | ), |
| 5935 | ] { |
| 5936 | let mut neighbor = json!({}); |
| 5937 | apply_route_reasoning_controls( |
| 5938 | &mut neighbor, |
| 5939 | ApiProvider::Moonshot, |
| 5940 | base_url, |
| 5941 | model, |
| 5942 | Some("max"), |
| 5943 | ); |
| 5944 | assert_eq!( |
| 5945 | neighbor["thinking"], |
| 5946 | json!({ "type": "enabled" }), |
| 5947 | "{base_url} / {model}" |
| 5948 | ); |
| 5949 | assert!(neighbor.get("reasoning_effort").is_none()); |
| 5950 | assert!(neighbor.pointer("/thinking/effort").is_none()); |
| 5951 | } |
| 5952 | } |
| 5953 | |
| 5954 | #[test] |
| 5955 | fn kimi_code_k3_effort_override_never_leaks_to_neighbor_routes() { |
| 5956 | for (base_url, model) in [ |
| 5957 | (crate::config::DEFAULT_KIMI_CODE_BASE_URL, "kimi-k3"), |
| 5958 | ( |
| 5959 | crate::config::DEFAULT_KIMI_CODE_BASE_URL, |
| 5960 | crate::config::DEFAULT_KIMI_CODE_MODEL, |
| 5961 | ), |
| 5962 | (crate::config::DEFAULT_MOONSHOT_BASE_URL, "k3"), |
| 5963 | ] { |
| 5964 | let mut body = json!({ "thinking": { "type": "enabled" } }); |
| 5965 | apply_kimi_code_k3_reasoning_effort( |
| 5966 | &mut body, |
| 5967 | ApiProvider::Moonshot, |
| 5968 | base_url, |
| 5969 | model, |
| 5970 | Some("max"), |
| 5971 | ); |
| 5972 | |
| 5973 | assert_eq!(body["thinking"], json!({ "type": "enabled" })); |
| 5974 | assert!( |
| 5975 | body.pointer("/thinking/effort").is_none(), |
| 5976 | "{base_url} / {model}" |
| 5977 | ); |
| 5978 | assert!(body.get("reasoning_effort").is_none()); |
| 5979 | } |
| 5980 | } |
| 5981 | |
| 5982 | #[test] |
| 5983 | fn muse_spark_uses_meta_reasoning_effort_without_openai_token_rewrite() { |
| 5984 | let mut body = json!({ |
| 5985 | "model": "muse-spark-1.1", |
| 5986 | "messages": [], |
| 5987 | "max_tokens": 8192, |
| 5988 | }); |
| 5989 | |
| 5990 | apply_provider_token_limit( |
| 5991 | &mut body, |
| 5992 | ApiProvider::Meta, |
| 5993 | "https://api.meta.ai/v1", |
| 5994 | "muse-spark-1.1", |
| 5995 | 8192, |
| 5996 | ); |
| 5997 | apply_openai_reasoning_effort(&mut body, ApiProvider::Meta, "muse-spark-1.1", Some("max")); |
| 5998 | |
| 5999 | assert_eq!(body["max_tokens"], json!(8192)); |
| 6000 | assert!(body.get("max_completion_tokens").is_none()); |
| 6001 | assert_eq!(body["reasoning_effort"], json!("xhigh")); |
| 6002 | } |
| 6003 | |
| 6004 | #[test] |
| 6005 | fn openai_non_reasoning_model_omits_reasoning_only_fields() { |
| 6006 | let mut body = json!({ |
| 6007 | "model": "gpt-4o", |
| 6008 | "messages": [], |
| 6009 | "max_tokens": 4096, |
| 6010 | }); |
| 6011 | |
| 6012 | apply_provider_token_limit( |
| 6013 | &mut body, |
| 6014 | ApiProvider::Openai, |
| 6015 | "https://api.openai.com/v1", |
| 6016 | "gpt-4o", |
| 6017 | 4096, |
| 6018 | ); |
| 6019 | apply_openai_reasoning_effort(&mut body, ApiProvider::Openai, "gpt-4o", Some("high")); |
| 6020 | |
| 6021 | assert_eq!( |
| 6022 | body.get("max_tokens").and_then(serde_json::Value::as_u64), |
| 6023 | Some(4096) |
| 6024 | ); |
| 6025 | assert!(body.get("max_completion_tokens").is_none()); |
| 6026 | assert!(body.get("reasoning_effort").is_none()); |
| 6027 | } |
| 6028 | |
| 6029 | #[test] |
| 6030 | fn openai_provider_deepseek_compatible_model_keeps_chat_token_field() { |
| 6031 | let mut body = json!({ |
| 6032 | "model": "deepseek-v4-pro", |
| 6033 | "messages": [], |
| 6034 | "max_tokens": 4096, |
| 6035 | }); |
| 6036 | |
| 6037 | apply_provider_token_limit( |
| 6038 | &mut body, |
| 6039 | ApiProvider::Openai, |
| 6040 | "https://api.openai.com/v1", |
| 6041 | "deepseek-v4-pro", |
| 6042 | 4096, |
| 6043 | ); |
| 6044 | apply_openai_reasoning_effort( |
| 6045 | &mut body, |
| 6046 | ApiProvider::Openai, |
| 6047 | "deepseek-v4-pro", |
| 6048 | Some("high"), |
| 6049 | ); |
| 6050 | |
| 6051 | assert_eq!( |
| 6052 | body.get("max_tokens").and_then(serde_json::Value::as_u64), |
| 6053 | Some(4096) |
| 6054 | ); |
| 6055 | assert!(body.get("max_completion_tokens").is_none()); |
| 6056 | assert!(body.get("reasoning_effort").is_none()); |
| 6057 | } |
| 6058 | |
| 6059 | #[test] |
| 6060 | fn deepseek_model_on_openai_provider_still_replays_reasoning_content() { |
| 6061 | // #1739 / #1694: a DeepSeek thinking model pointed at a |
| 6062 | // DeepSeek-compatible endpoint via the generic `openai` provider must |
| 6063 | // still replay reasoning_content, even though the provider itself does |
| 6064 | // not accept the field. Otherwise the thinking-mode API returns 400. |
| 6065 | assert!(should_replay_reasoning_content_for_provider( |
| 6066 | ApiProvider::Openai, |
| 6067 | "deepseek-v4-flash", |
| 6068 | None, |
| 6069 | )); |
| 6070 | assert!(should_replay_reasoning_content_for_provider( |
| 6071 | ApiProvider::Openai, |
| 6072 | "deepseek-v4-pro", |
| 6073 | None, |
| 6074 | )); |
| 6075 | assert!(should_replay_reasoning_content_for_provider( |
| 6076 | ApiProvider::Openai, |
| 6077 | "deepseek-reasoner", |
| 6078 | Some("medium"), |
| 6079 | )); |
| 6080 | // The documented escape hatch still wins over model detection. |
| 6081 | assert!(!should_replay_reasoning_content_for_provider( |
| 6082 | ApiProvider::Openai, |
| 6083 | "deepseek-v4-flash", |
| 6084 | Some("off"), |
| 6085 | )); |
| 6086 | } |
| 6087 | |
| 6088 | #[test] |
| 6089 | fn generic_model_on_openai_provider_still_strips_reasoning_content() { |
| 6090 | // #1542 no-regression guard: a genuine non-DeepSeek model on the |
| 6091 | // openai provider must continue to have reasoning_content stripped. |
| 6092 | assert!(!should_replay_reasoning_content_for_provider( |
| 6093 | ApiProvider::Openai, |
| 6094 | "qwen3-coder", |
| 6095 | None, |
| 6096 | )); |
| 6097 | assert!(!should_replay_reasoning_content_for_provider( |
| 6098 | ApiProvider::Openai, |
| 6099 | "claude-sonnet-4-6", |
| 6100 | None, |
| 6101 | )); |
| 6102 | } |
| 6103 | |
| 6104 | #[test] |
| 6105 | fn stream_classifies_deepseek_model_on_openai_provider_as_reasoning() { |
| 6106 | // #1739: the SSE parser must treat a DeepSeek thinking model on the |
| 6107 | // generic `openai` provider (DeepSeek-compatible endpoint) as a |
| 6108 | // reasoning model, or incoming `reasoning_content` tokens are stored |
| 6109 | // as answer text and the subsequent replay still 400s. |
| 6110 | assert!(is_reasoning_model_for_stream( |
| 6111 | ApiProvider::Openai, |
| 6112 | "deepseek-v4-flash" |
| 6113 | )); |
| 6114 | assert!(is_reasoning_model_for_stream( |
| 6115 | ApiProvider::Openai, |
| 6116 | "deepseek-v4-pro" |
| 6117 | )); |
| 6118 | assert!(is_reasoning_model_for_stream( |
| 6119 | ApiProvider::Openai, |
| 6120 | "deepseek-reasoner" |
| 6121 | )); |
| 6122 | // Native DeepSeek provider was already correct; stays correct. |
| 6123 | assert!(is_reasoning_model_for_stream( |
| 6124 | ApiProvider::Deepseek, |
| 6125 | "deepseek-v4-pro" |
| 6126 | )); |
| 6127 | } |
| 6128 | |
| 6129 | #[test] |
| 6130 | fn zai_tiered_effort_applies_to_glm_5_2_and_glm_5_3_but_not_5_1() { |
| 6131 | let zai = crate::config::DEFAULT_ZAI_BASE_URL; |
| 6132 | // GLM-5.3 inherits GLM-5.2's reasoning_options (effort high/max), so it |
| 6133 | // must take the same tiered wire path — not the generic toggle. |
| 6134 | for model in [ |
| 6135 | crate::config::ZAI_GLM_5_2_MODEL, |
| 6136 | crate::config::ZAI_GLM_5_3_MODEL, |
| 6137 | ] { |
| 6138 | let mut body = json!({}); |
| 6139 | apply_route_reasoning_controls(&mut body, ApiProvider::Zai, zai, model, Some("max")); |
| 6140 | assert_eq!(body["reasoning_effort"], json!("max"), "{model} at max"); |
| 6141 | |
| 6142 | let mut body = json!({}); |
| 6143 | apply_route_reasoning_controls(&mut body, ApiProvider::Zai, zai, model, Some("high")); |
| 6144 | assert_eq!(body["reasoning_effort"], json!("high"), "{model} at high"); |
| 6145 | } |
| 6146 | |
| 6147 | // GLM-5.1 and GLM-5-Turbo keep only the generic thinking control. |
| 6148 | for model in [ |
| 6149 | crate::config::ZAI_GLM_5_1_MODEL, |
| 6150 | crate::config::ZAI_GLM_5_TURBO_MODEL, |
| 6151 | ] { |
| 6152 | let mut body = json!({}); |
| 6153 | apply_route_reasoning_controls(&mut body, ApiProvider::Zai, zai, model, Some("max")); |
| 6154 | assert!( |
| 6155 | body.get("reasoning_effort").is_none(), |
| 6156 | "{model} must not receive tiered effort" |
| 6157 | ); |
| 6158 | } |
| 6159 | |
| 6160 | // A compatible gateway is not evidence of the Z.ai dialect, for 5.3 |
| 6161 | // exactly as for 5.2. |
| 6162 | let mut body = json!({"thinking": {"type": "enabled"}}); |
| 6163 | apply_route_reasoning_controls( |
| 6164 | &mut body, |
| 6165 | ApiProvider::Zai, |
| 6166 | "https://gateway.example.com/v1", |
| 6167 | crate::config::ZAI_GLM_5_3_MODEL, |
| 6168 | Some("max"), |
| 6169 | ); |
| 6170 | assert!(body.get("reasoning_effort").is_none()); |
| 6171 | assert!(body.get("thinking").is_none()); |
| 6172 | } |
| 6173 | |
| 6174 | #[test] |
| 6175 | fn stream_classifies_known_large_reasoning_models_as_reasoning() { |
| 6176 | // Xiaomi MiMo and OpenRouter/Qwen/Trinity can stream private reasoning through a |
| 6177 | // `reasoning` delta without using a DeepSeek-looking model name. The |
| 6178 | // renderer must still route that field into Thinking cells instead |
| 6179 | // of plain assistant prose. |
| 6180 | assert!( |
| 6181 | is_reasoning_model_for_stream(ApiProvider::XiaomiMimo, "mimo-v2.5-pro"), |
| 6182 | "mimo-v2.5-pro should stream reasoning as thinking on Xiaomi MiMo" |
| 6183 | ); |
| 6184 | assert!( |
| 6185 | is_reasoning_model_for_stream(ApiProvider::Arcee, "trinity-large-thinking"), |
| 6186 | "trinity-large-thinking should stream reasoning as thinking on direct Arcee" |
| 6187 | ); |
| 6188 | assert!( |
| 6189 | is_reasoning_model_for_stream(ApiProvider::Zai, "GLM-5.2"), |
| 6190 | "GLM-5.2 should stream reasoning_content as thinking on direct Z.ai" |
| 6191 | ); |
| 6192 | assert!( |
| 6193 | is_reasoning_model_for_stream(ApiProvider::Zai, "GLM-5.3"), |
| 6194 | "GLM-5.3 inherits GLM-5.2's reasoning capability on direct Z.ai" |
| 6195 | ); |
| 6196 | for model in [ |
| 6197 | "arcee-ai/trinity-large-thinking", |
| 6198 | "minimax/minimax-m3", |
| 6199 | "xiaomi/mimo-v2.5-pro", |
| 6200 | ] { |
| 6201 | assert!( |
| 6202 | is_reasoning_model_for_stream(ApiProvider::Openrouter, model), |
| 6203 | "{model} should stream reasoning as thinking on OpenRouter" |
| 6204 | ); |
| 6205 | } |
| 6206 | } |
| 6207 | |
| 6208 | #[test] |
| 6209 | fn stream_does_not_classify_generic_model_as_reasoning() { |
| 6210 | // #1542 no-regression guard: a genuine non-DeepSeek model on the |
| 6211 | // openai provider must NOT be treated as a reasoning model, so the |
| 6212 | // parser keeps inlining any `reasoning_content` it emits as text. |
| 6213 | assert!(!is_reasoning_model_for_stream( |
| 6214 | ApiProvider::Openai, |
| 6215 | "qwen3-coder" |
| 6216 | )); |
| 6217 | assert!(!is_reasoning_model_for_stream( |
| 6218 | ApiProvider::Openai, |
| 6219 | "claude-sonnet-4-6" |
| 6220 | )); |
| 6221 | // Non-DeepSeek model on a reasoning-aware provider is also unchanged. |
| 6222 | assert!(!is_reasoning_model_for_stream( |
| 6223 | ApiProvider::Deepseek, |
| 6224 | "qwen3-coder" |
| 6225 | )); |
| 6226 | } |
| 6227 | |
| 6228 | #[test] |
| 6229 | fn stream_classification_matches_replay_predicate() { |
| 6230 | // The streaming classifier and the replay predicate must agree on |
| 6231 | // model identity, or stream parsing and message sanitisation disagree |
| 6232 | // about where reasoning tokens live. Effort=None isolates the |
| 6233 | // model/provider dimension shared by both. |
| 6234 | for model in ["deepseek-v4-pro", "deepseek-reasoner", "qwen3-coder"] { |
| 6235 | for provider in [ApiProvider::Openai, ApiProvider::Deepseek] { |
| 6236 | assert_eq!( |
| 6237 | is_reasoning_model_for_stream(provider, model), |
| 6238 | should_replay_reasoning_content_for_provider(provider, model, None), |
| 6239 | "stream vs replay disagree for {model} on {provider:?}" |
| 6240 | ); |
| 6241 | } |
| 6242 | } |
| 6243 | } |
| 6244 | } |
| 6245 | |
| 6246 | #[cfg(test)] |
| 6247 | mod image_block_wire_tests { |
| 6248 | //! The OpenAI-compatible projection of [`ContentBlock::ImageUrl`]. |
| 6249 | //! |
| 6250 | //! Chat Completions is the wire format behind the large majority of |
| 6251 | //! CodeWhale's provider routes, so a regression here is a regression for |
| 6252 | //! most of them at once. The shape is fixed by OpenAI's spec: a `user` |
| 6253 | //! message whose `content` is an array of parts, with the image as |
| 6254 | //! `{"type":"image_url","image_url":{"url":…}}`. |
| 6255 | use super::{ApiProvider, build_chat_wire_body}; |
| 6256 | use crate::models::{ContentBlock, ImageUrlContent, Message, MessageRequest}; |
| 6257 | |
| 6258 | const DATA_URL: &str = "data:image/png;base64,QUJD"; |
| 6259 | |
| 6260 | fn request_with_image() -> MessageRequest { |
| 6261 | MessageRequest { |
| 6262 | model: "gpt-4o".to_string(), |
| 6263 | messages: vec![Message { |
| 6264 | role: "user".to_string(), |
| 6265 | content: vec![ |
| 6266 | ContentBlock::Text { |
| 6267 | text: "what is in this screenshot?".to_string(), |
| 6268 | cache_control: None, |
| 6269 | }, |
| 6270 | ContentBlock::ImageUrl { |
| 6271 | image_url: ImageUrlContent { |
| 6272 | url: DATA_URL.to_string(), |
| 6273 | }, |
| 6274 | }, |
| 6275 | ], |
| 6276 | }], |
| 6277 | max_tokens: 128, |
| 6278 | system: None, |
| 6279 | tools: None, |
| 6280 | tool_choice: None, |
| 6281 | metadata: None, |
| 6282 | thinking: None, |
| 6283 | reasoning_effort: None, |
| 6284 | stream: None, |
| 6285 | temperature: None, |
| 6286 | top_p: None, |
| 6287 | } |
| 6288 | } |
| 6289 | |
| 6290 | #[test] |
| 6291 | fn user_image_becomes_a_multimodal_parts_array() { |
| 6292 | let body = build_chat_wire_body( |
| 6293 | &request_with_image(), |
| 6294 | ApiProvider::Openai, |
| 6295 | "https://api.openai.com/v1", |
| 6296 | false, |
| 6297 | ) |
| 6298 | .expect("wire body"); |
| 6299 | |
| 6300 | let messages = body.body["messages"].as_array().expect("messages"); |
| 6301 | let user = messages |
| 6302 | .iter() |
| 6303 | .find(|message| message["role"] == "user") |
| 6304 | .expect("a user message"); |
| 6305 | let parts = user["content"] |
| 6306 | .as_array() |
| 6307 | .expect("content must be a parts array once an image is present, not a bare string"); |
| 6308 | |
| 6309 | let image = parts |
| 6310 | .iter() |
| 6311 | .find(|part| part["type"] == "image_url") |
| 6312 | .expect("an image_url part"); |
| 6313 | assert_eq!(image["image_url"]["url"], DATA_URL); |
| 6314 | |
| 6315 | let text = parts |
| 6316 | .iter() |
| 6317 | .find(|part| part["type"] == "text") |
| 6318 | .expect("the accompanying text part"); |
| 6319 | assert!( |
| 6320 | text["text"] |
| 6321 | .as_str() |
| 6322 | .expect("text") |
| 6323 | .contains("what is in this screenshot?"), |
| 6324 | "the question must survive alongside the image: {user}" |
| 6325 | ); |
| 6326 | } |
| 6327 | |
| 6328 | #[test] |
| 6329 | fn a_message_with_no_image_keeps_its_plain_string_content() { |
| 6330 | // Promoting every user turn to a parts array would change the request |
| 6331 | // bytes for every text-only route, and with them the prompt-cache |
| 6332 | // prefix. Images must be the only thing that triggers the array form. |
| 6333 | let mut request = request_with_image(); |
| 6334 | request.messages[0] |
| 6335 | .content |
| 6336 | .retain(|block| !matches!(block, ContentBlock::ImageUrl { .. })); |
| 6337 | |
| 6338 | let body = build_chat_wire_body( |
| 6339 | &request, |
| 6340 | ApiProvider::Openai, |
| 6341 | "https://api.openai.com/v1", |
| 6342 | false, |
| 6343 | ) |
| 6344 | .expect("wire body"); |
| 6345 | |
| 6346 | let messages = body.body["messages"].as_array().expect("messages"); |
| 6347 | let user = messages |
| 6348 | .iter() |
| 6349 | .find(|message| message["role"] == "user") |
| 6350 | .expect("a user message"); |
| 6351 | assert!( |
| 6352 | user["content"].is_string(), |
| 6353 | "text-only turns must stay a plain string: {user}" |
| 6354 | ); |
| 6355 | } |
| 6356 | } |
| 6357 |