| 1 | package responses |
| 2 | |
| 3 | import ( |
| 4 | "reasonix/internal/provider" |
| 5 | "slices" |
| 6 | "strings" |
| 7 | ) |
| 8 | |
| 9 | // RequiresToolCallReasoning tells the agent to preserve stateless vendors' |
| 10 | // reasoning on assistant tool-call turns so the follow-up can replay it. |
| 11 | // DeepSeek and MiMo document this requirement for multi-turn tool calls. |
| 12 | func (c *client) RequiresToolCallReasoning() bool { |
| 13 | return c != nil && c.caps.toolCallReasoning && !responsesReasoningDisabled(c.effort) |
| 14 | } |
| 15 | |
| 16 | // AllowsEmptyReasoningFallback reports that a Responses tool turn remains |
| 17 | // replayable when the provider emitted no reasoning item. DeepSeek and MiMo |
| 18 | // both accept the function_call/function_call_output pair without fabricating |
| 19 | // a reasoning item; any reasoning that was emitted is still preserved above. |
| 20 | func (c *client) AllowsEmptyReasoningFallback() bool { |
| 21 | return c.RequiresToolCallReasoning() |
| 22 | } |
| 23 | |
| 24 | func (c *client) MissingToolCallReasoningWarningIdentity() string { |
| 25 | if c == nil { |
| 26 | return "" |
| 27 | } |
| 28 | return strings.Join([]string{ |
| 29 | "responses", strings.TrimSpace(c.name), strings.TrimSpace(c.requestURL), |
| 30 | strings.TrimSpace(c.model), strings.TrimSpace(c.vendor), strings.TrimSpace(c.mode), strings.TrimSpace(c.effort), |
| 31 | }, "\x00") |
| 32 | } |
| 33 | |
| 34 | // WarnOnMissingToolCallReasoning reports a tool_calls turn that arrived |
| 35 | // without reasoning only for vendors whose endpoint reliably emits it. |
| 36 | // DeepSeek's official API emits tool-call reasoning for its pro-tier models, |
| 37 | // so a missing chain-of-thought there is a real degradation worth one warning. |
| 38 | // MiMo documents reasoning alongside tool calls but does not guarantee it on |
| 39 | // every round (observed: mimo-v2.5-pro tool-call turn with empty reasoning), |
| 40 | // so a missing chain-of-thought is endpoint-conditional, not a degradation |
| 41 | // signal — silence the warning. Capability-driven (review #7234): |
| 42 | // toolCallReasoning=false vendors (DashScope) never warn — no round-trip |
| 43 | // contract; singleSegmentReasoning=true vendors (MiMo) never warn — their |
| 44 | // tool-call thinking is a single optional segment. Only multi-segment |
| 45 | // thinking vendors that require replay (DeepSeek) warn, scoped to non-flash. |
| 46 | func (c *client) WarnOnMissingToolCallReasoning() bool { |
| 47 | if !c.RequiresToolCallReasoning() || c.caps.singleSegmentReasoning { |
| 48 | return false |
| 49 | } |
| 50 | model := strings.ToLower(strings.TrimSpace(c.model)) |
| 51 | // Flash-tier DeepSeek models do not emit tool-call reasoning (same carve |
| 52 | // as openai.go expectsDeepSeekToolCallReasoning). |
| 53 | return !strings.Contains(model, "flash") |
| 54 | } |
| 55 | |
| 56 | func (c *client) RequiresAssistantReasoningReplay(m provider.Message) bool { |
| 57 | if slices.ContainsFunc(m.ResponsesItems, provider.IsReplayableResponsesReasoning) { |
| 58 | return true |
| 59 | } |
| 60 | |
| 61 | return c.RequiresToolCallReasoning() && (len(m.ToolCalls) > 0 || m.ReasoningContent != "") |
| 62 | } |
| 63 |