| 1 | // Package tool defines the Tool abstraction and a Registry. Built-in tools live |
| 2 | // in tool/builtin and self-register via init(); plugin-provided tools are added |
| 3 | // to a runtime Registry alongside the enabled built-ins. The agent sees only a |
| 4 | // *Registry, never the global built-in set directly. |
| 5 | package tool |
| 6 | |
| 7 | import ( |
| 8 | "context" |
| 9 | "encoding/json" |
| 10 | "sort" |
| 11 | "strings" |
| 12 | "sync" |
| 13 | |
| 14 | "reasonix/internal/diff" |
| 15 | "reasonix/internal/provider" |
| 16 | ) |
| 17 | |
| 18 | // Tool is a capability the model can invoke. |
| 19 | type Tool interface { |
| 20 | Name() string |
| 21 | Description() string |
| 22 | // Schema returns the JSON Schema for the tool's parameters. |
| 23 | Schema() json.RawMessage |
| 24 | // Execute parses the model-generated raw JSON args and returns result text |
| 25 | // to feed back to the model. |
| 26 | Execute(ctx context.Context, args json.RawMessage) (string, error) |
| 27 | // ReadOnly reports whether the tool has no observable side effects on the |
| 28 | // host. The agent parallelises a batch of tool calls only when every call |
| 29 | // in the batch is ReadOnly; mixed batches stay sequential so write/read |
| 30 | // ordering is preserved. bash and plugin tools must return false because |
| 31 | // their effects can't be inferred statically from args. |
| 32 | ReadOnly() bool |
| 33 | } |
| 34 | |
| 35 | // Previewer is an optional capability a writer Tool may implement: given the |
| 36 | // same raw JSON args Execute would receive, compute the file change the call |
| 37 | // *would* make — without touching disk. A front-end uses it to show an approval |
| 38 | // card or a changed-files panel before the call runs (the permission gate, not |
| 39 | // Preview, decides whether it may proceed). Type-assert a Tool to Previewer to |
| 40 | // discover support; the file-writing built-ins implement it, most tools do not. |
| 41 | type Previewer interface { |
| 42 | Preview(args json.RawMessage) (diff.Change, error) |
| 43 | } |
| 44 | |
| 45 | // PreviewChange returns the change a writer tool would make for args, or ok=false |
| 46 | // when there's nothing renderable: t is read-only, doesn't implement Previewer, |
| 47 | // the preview errored (the edit will likely fail too), or the file is binary. |
| 48 | func PreviewChange(t Tool, args json.RawMessage) (diff.Change, bool) { |
| 49 | if t == nil || t.ReadOnly() { |
| 50 | return diff.Change{}, false |
| 51 | } |
| 52 | pv, ok := t.(Previewer) |
| 53 | if !ok { |
| 54 | return diff.Change{}, false |
| 55 | } |
| 56 | ch, err := pv.Preview(args) |
| 57 | if err != nil || ch.Binary { |
| 58 | return diff.Change{}, false |
| 59 | } |
| 60 | return ch, true |
| 61 | } |
| 62 | |
| 63 | // ImageTool is an optional capability a Tool may implement when its results can |
| 64 | // carry images alongside text (e.g. an MCP tool returning a screenshot). |
| 65 | // ExecuteWithImages returns the same text Execute would — including a short |
| 66 | // placeholder marker where each image occurred — plus the images as data URLs |
| 67 | // (data:<mime>;base64,<payload>). Callers with a structural image channel (the |
| 68 | // agent stores them on the tool message, where vision-capable providers embed |
| 69 | // them) use this instead of Execute; everything else falls back to Execute and |
| 70 | // the placeholders alone describe the images. Keeping images out of the text |
| 71 | // matters: tool output text is truncated at a fixed byte budget, which would |
| 72 | // corrupt an embedded base64 payload. |
| 73 | type ImageTool interface { |
| 74 | ExecuteWithImages(ctx context.Context, args json.RawMessage) (text string, images []string, err error) |
| 75 | } |
| 76 | |
| 77 | // PlanModeClassifier is an optional capability a Tool may implement to declare |
| 78 | // its stance on running during the planning phase. It is deliberately distinct |
| 79 | // from ReadOnly(): a tool can be side-effect-free yet belong only to the |
| 80 | // post-approval execution phase (complete_step reports ReadOnly()==true but must |
| 81 | // not run while planning), or be a delegation that is safe only in a read-only |
| 82 | // variant (read_only_task). A false result is an explicit phase opt-out; tools |
| 83 | // without this interface continue to the ordinary Permissions/Sandbox path. |
| 84 | type PlanModeClassifier interface { |
| 85 | PlanModeSafe() bool |
| 86 | } |
| 87 | |
| 88 | // ReadOnlyExecutionHostMutation marks a target that is logically read-only but |
| 89 | // must first mutate host state to become executable, such as starting an |
| 90 | // on-demand MCP process. Strict read-only agents reject these targets even when |
| 91 | // their eventual remote operation is trusted read-only. |
| 92 | type ReadOnlyExecutionHostMutation interface { |
| 93 | ReadOnlyExecutionHostMutation() bool |
| 94 | } |
| 95 | |
| 96 | // ReadOnlyExecutionBlockReason lets a deferred capability explain which |
| 97 | // parent-session action is required when a strict read-only child cannot run |
| 98 | // it. The reason is host-local and never enters provider tool schemas. |
| 99 | type ReadOnlyExecutionBlockReason interface { |
| 100 | ReadOnlyExecutionBlockReason() string |
| 101 | } |
| 102 | |
| 103 | // MCPMetadata exposes the original MCP identity behind a model-visible |
| 104 | // "mcp__<server>__<tool>" adapter. The model name may be normalized for provider |
| 105 | // function-name rules; host policy and diagnostics use the raw server-local |
| 106 | // tool name. |
| 107 | type MCPMetadata interface { |
| 108 | MCPServerName() string |
| 109 | MCPRawToolName() string |
| 110 | } |
| 111 | |
| 112 | // MCPVisibleMetadata exposes the server-local name after any host-configured |
| 113 | // prefix stripping. It is the short name authors usually write in skills. |
| 114 | type MCPVisibleMetadata interface { |
| 115 | MCPVisibleToolName() string |
| 116 | } |
| 117 | |
| 118 | // MCPPackageMetadata identifies the plugin package that contributed an MCP |
| 119 | // server. Empty means the server came from ordinary user/workspace config. |
| 120 | type MCPPackageMetadata interface { |
| 121 | MCPPackageName() string |
| 122 | } |
| 123 | |
| 124 | // MCPBinding describes one stable MCP capability and the exact provider-visible |
| 125 | // name currently bound to it. Bindings are host metadata only: they never add |
| 126 | // aliases to provider schemas or alter schema ordering. |
| 127 | type MCPBinding struct { |
| 128 | Package string |
| 129 | Server string |
| 130 | RawName string |
| 131 | VisibleName string |
| 132 | CallableName string |
| 133 | CapabilityID string |
| 134 | } |
| 135 | |
| 136 | // MCPAnnotations exposes safety-relevant annotations reported by an installed |
| 137 | // MCP server. These hints do not change the provider-visible tool contract; |
| 138 | // execution policy consumes them locally. |
| 139 | type MCPAnnotations interface { |
| 140 | MCPDestructiveHint() bool |
| 141 | } |
| 142 | |
| 143 | // MCPServerAuthorization reports whether the user installed this MCP server or |
| 144 | // authorized its exact project identity. Authorization belongs to the server, |
| 145 | // not to individual tools; readOnly/destructive metadata is checked separately. |
| 146 | type MCPServerAuthorization interface { |
| 147 | MCPServerAuthorized() bool |
| 148 | } |
| 149 | |
| 150 | // readerExecutionIntentKey carries a per-call, immutable authorization basis: |
| 151 | // the call was approved as a non-destructive reader. The MCP dispatcher makes |
| 152 | // the final, linearizable check against live security state and must never |
| 153 | // promote such a call into a writer lane; drift after authorization returns an |
| 154 | // error instead of executing. |
| 155 | type readerExecutionIntentKey struct{} |
| 156 | |
| 157 | // nonDestructiveMCPExecutionIntentKey carries a per-call, immutable |
| 158 | // authorization basis for Planner-trusted MCP: the server is authorized and the |
| 159 | // live tool is non-destructive, even when it lacks readOnlyHint. The MCP |
| 160 | // dispatcher re-checks authorization and destructiveHint before tools/call; |
| 161 | // drift returns a retryable error with zero execution. |
| 162 | type nonDestructiveMCPExecutionIntentKey struct{} |
| 163 | |
| 164 | // planReplacementAuthorizationKey carries a one-call authorization from the |
| 165 | // host's Auto plan gate. It lets todo_write replace the current in_progress |
| 166 | // step after the plan transition has been reviewed, without weakening ordinary |
| 167 | // todo continuity or exposing an authorization bit in the model-visible schema. |
| 168 | type planReplacementAuthorizationKey struct{} |
| 169 | |
| 170 | // WithReaderExecutionIntent marks ctx as a reader-authorized MCP invocation. |
| 171 | func WithReaderExecutionIntent(ctx context.Context) context.Context { |
| 172 | return context.WithValue(ctx, readerExecutionIntentKey{}, true) |
| 173 | } |
| 174 | |
| 175 | // HasReaderExecutionIntent reports whether this call entered through the |
| 176 | // non-destructive reader lane. |
| 177 | func HasReaderExecutionIntent(ctx context.Context) bool { |
| 178 | intent, _ := ctx.Value(readerExecutionIntentKey{}).(bool) |
| 179 | return intent |
| 180 | } |
| 181 | |
| 182 | // WithNonDestructiveMCPExecutionIntent marks ctx as a Planner-trusted MCP |
| 183 | // invocation: authorized server, non-destructive live tool. Unlike the reader |
| 184 | // lane it does not require readOnlyHint. |
| 185 | func WithNonDestructiveMCPExecutionIntent(ctx context.Context) context.Context { |
| 186 | return context.WithValue(ctx, nonDestructiveMCPExecutionIntentKey{}, true) |
| 187 | } |
| 188 | |
| 189 | // HasNonDestructiveMCPExecutionIntent reports whether this call entered through |
| 190 | // the Planner non-destructive MCP lane. |
| 191 | func HasNonDestructiveMCPExecutionIntent(ctx context.Context) bool { |
| 192 | intent, _ := ctx.Value(nonDestructiveMCPExecutionIntentKey{}).(bool) |
| 193 | return intent |
| 194 | } |
| 195 | |
| 196 | // WithPlanReplacementAuthorization marks one reviewed todo_write invocation as |
| 197 | // allowed to replace its current step. Callers must not reuse the returned |
| 198 | // context for unrelated tool calls. |
| 199 | func WithPlanReplacementAuthorization(ctx context.Context) context.Context { |
| 200 | return context.WithValue(ctx, planReplacementAuthorizationKey{}, true) |
| 201 | } |
| 202 | |
| 203 | // HasPlanReplacementAuthorization reports whether the host approved replacing |
| 204 | // the active step for this exact tool invocation. |
| 205 | func HasPlanReplacementAuthorization(ctx context.Context) bool { |
| 206 | authorized, _ := ctx.Value(planReplacementAuthorizationKey{}).(bool) |
| 207 | return authorized |
| 208 | } |
| 209 | |
| 210 | // SnipHint describes how context maintenance should shorten a stale, oversized |
| 211 | // result this tool produced. Head/Tail are the line counts kept from each end |
| 212 | // when the result has many lines; HeadChars/TailChars bound the kept runes when |
| 213 | // the result is one giant line. A zero value is invalid — implementers return |
| 214 | // positive counts. The geometry lives on the tool, not in a lookup table keyed |
| 215 | // by name, so renaming a tool carries its snip policy with it and a new tool |
| 216 | // cannot silently fall back to a generic default unnoticed (the contract test |
| 217 | // forces every registered tool to either implement SnipHinter or opt into the |
| 218 | // read-only/side-effecting default explicitly). |
| 219 | type SnipHint struct { |
| 220 | Head int |
| 221 | Tail int |
| 222 | HeadChars int |
| 223 | TailChars int |
| 224 | } |
| 225 | |
| 226 | // SnipHinter is an optional capability a Tool implements when its output has a |
| 227 | // known shape that a generic head/tail split would garble — e.g. read_file |
| 228 | // front-loads the most relevant lines, while bash output is equally meaningful |
| 229 | // at both ends. Type-assert a Tool to discover support; tools that omit it take |
| 230 | // the ReadOnly-tiered default in the maintainer. |
| 231 | type SnipHinter interface { |
| 232 | SnipHint() SnipHint |
| 233 | } |
| 234 | |
| 235 | // --- process-global built-in set (populated by builtin subpackage init) --- |
| 236 | |
| 237 | var builtins = map[string]Tool{} |
| 238 | |
| 239 | // RegisterBuiltin registers a compile-time built-in tool. Intended for init(). |
| 240 | // It panics on a duplicate name, which is a compile-time wiring mistake. |
| 241 | func RegisterBuiltin(t Tool) { |
| 242 | name := t.Name() |
| 243 | if _, dup := builtins[name]; dup { |
| 244 | panic("tool: duplicate built-in " + name) |
| 245 | } |
| 246 | builtins[name] = t |
| 247 | } |
| 248 | |
| 249 | // Builtins returns all registered built-in tools, sorted by name. |
| 250 | func Builtins() []Tool { |
| 251 | names := make([]string, 0, len(builtins)) |
| 252 | for n := range builtins { |
| 253 | names = append(names, n) |
| 254 | } |
| 255 | sort.Strings(names) |
| 256 | out := make([]Tool, 0, len(names)) |
| 257 | for _, n := range names { |
| 258 | out = append(out, builtins[n]) |
| 259 | } |
| 260 | return out |
| 261 | } |
| 262 | |
| 263 | // LookupBuiltin returns a registered built-in by name. |
| 264 | func LookupBuiltin(name string) (Tool, bool) { |
| 265 | t, ok := builtins[name] |
| 266 | return t, ok |
| 267 | } |
| 268 | |
| 269 | // --- per-run registry instance --- |
| 270 | |
| 271 | // Registry is a per-run set of tools: enabled built-ins plus plugin tools. |
| 272 | type Registry struct { |
| 273 | mu sync.RWMutex |
| 274 | tools map[string]Tool |
| 275 | order []string |
| 276 | canon map[string]json.RawMessage |
| 277 | suspended map[string]bool |
| 278 | } |
| 279 | |
| 280 | // NewRegistry returns an empty registry. |
| 281 | func NewRegistry() *Registry { |
| 282 | return &Registry{tools: map[string]Tool{}, canon: map[string]json.RawMessage{}, suspended: map[string]bool{}} |
| 283 | } |
| 284 | |
| 285 | // Add inserts (or replaces) a tool, preserving first-seen order. The schema is |
| 286 | // canonicalized once here — it never changes after registration, so Schemas() |
| 287 | // (called every turn) reuses the result instead of re-marshaling. |
| 288 | func (r *Registry) Add(t Tool) { |
| 289 | r.mu.Lock() |
| 290 | defer r.mu.Unlock() |
| 291 | |
| 292 | name := t.Name() |
| 293 | for prefix := range r.suspended { |
| 294 | if strings.HasPrefix(name, prefix) { |
| 295 | return |
| 296 | } |
| 297 | } |
| 298 | if _, ok := r.tools[name]; !ok { |
| 299 | r.order = append(r.order, name) |
| 300 | } |
| 301 | r.tools[name] = t |
| 302 | r.canon[name] = provider.CanonicalizeSchema(t.Schema()) |
| 303 | } |
| 304 | |
| 305 | // MCPNamePrefix is the namespace every MCP tool name carries: the |
| 306 | // model-visible name is "mcp__<server>__<tool>". |
| 307 | const MCPNamePrefix = "mcp__" |
| 308 | |
| 309 | // SplitMCPName splits a model-visible MCP tool name "mcp__<server>__<tool>" into |
| 310 | // its server and tool parts. ok is false for non-MCP (built-in) names and for |
| 311 | // malformed names missing either part. |
| 312 | func SplitMCPName(name string) (server, tool string, ok bool) { |
| 313 | if !strings.HasPrefix(name, MCPNamePrefix) { |
| 314 | return "", "", false |
| 315 | } |
| 316 | rest := name[len(MCPNamePrefix):] |
| 317 | parts := strings.SplitN(rest, "__", 2) |
| 318 | if len(parts) != 2 || parts[0] == "" || parts[1] == "" { |
| 319 | return "", "", false |
| 320 | } |
| 321 | return parts[0], parts[1], true |
| 322 | } |
| 323 | |
| 324 | // RemovePrefix unregisters every tool whose name starts with prefix — used to |
| 325 | // drop an MCP server's "mcp__<server>__" namespace when it's disconnected — and |
| 326 | // returns the count removed. |
| 327 | func (r *Registry) RemovePrefix(prefix string) int { |
| 328 | r.mu.Lock() |
| 329 | defer r.mu.Unlock() |
| 330 | |
| 331 | kept := r.order[:0] |
| 332 | removed := 0 |
| 333 | for _, name := range r.order { |
| 334 | if strings.HasPrefix(name, prefix) { |
| 335 | delete(r.tools, name) |
| 336 | delete(r.canon, name) |
| 337 | removed++ |
| 338 | continue |
| 339 | } |
| 340 | kept = append(kept, name) |
| 341 | } |
| 342 | r.order = kept |
| 343 | return removed |
| 344 | } |
| 345 | |
| 346 | // SuspendPrefix unregisters matching tools and prevents future Add calls for |
| 347 | // that prefix until ResumePrefix is called. It is used for per-session MCP |
| 348 | // disables where an in-flight background handshake may otherwise swap tools back |
| 349 | // into this registry after the user turned the server off. |
| 350 | func (r *Registry) SuspendPrefix(prefix string) int { |
| 351 | r.mu.Lock() |
| 352 | defer r.mu.Unlock() |
| 353 | |
| 354 | r.suspended[prefix] = true |
| 355 | kept := r.order[:0] |
| 356 | removed := 0 |
| 357 | for _, name := range r.order { |
| 358 | if strings.HasPrefix(name, prefix) { |
| 359 | delete(r.tools, name) |
| 360 | delete(r.canon, name) |
| 361 | removed++ |
| 362 | continue |
| 363 | } |
| 364 | kept = append(kept, name) |
| 365 | } |
| 366 | r.order = kept |
| 367 | return removed |
| 368 | } |
| 369 | |
| 370 | // ResumePrefix allows future Add calls for a previously suspended prefix. |
| 371 | func (r *Registry) ResumePrefix(prefix string) { |
| 372 | r.mu.Lock() |
| 373 | defer r.mu.Unlock() |
| 374 | delete(r.suspended, prefix) |
| 375 | } |
| 376 | |
| 377 | // Get looks up a tool by name. |
| 378 | func (r *Registry) Get(name string) (Tool, bool) { |
| 379 | r.mu.RLock() |
| 380 | defer r.mu.RUnlock() |
| 381 | |
| 382 | t, ok := r.tools[name] |
| 383 | return t, ok |
| 384 | } |
| 385 | |
| 386 | // MCPBindings returns live MCP capability bindings in canonical-name order. |
| 387 | func (r *Registry) MCPBindings() []MCPBinding { |
| 388 | r.mu.RLock() |
| 389 | defer r.mu.RUnlock() |
| 390 | |
| 391 | out := make([]MCPBinding, 0, len(r.tools)) |
| 392 | for _, t := range r.tools { |
| 393 | if b, ok := mcpBinding(t); ok { |
| 394 | out = append(out, b) |
| 395 | } |
| 396 | } |
| 397 | sort.Slice(out, func(i, j int) bool { return out[i].CallableName < out[j].CallableName }) |
| 398 | return out |
| 399 | } |
| 400 | |
| 401 | // ResolveCall resolves an exact provider-visible name or a unique portable MCP |
| 402 | // reference. Exact names always win. Ambiguous aliases return their canonical |
| 403 | // candidates and are never executed. |
| 404 | func (r *Registry) ResolveCall(name string) (resolved Tool, canonical string, candidates []string) { |
| 405 | r.mu.RLock() |
| 406 | defer r.mu.RUnlock() |
| 407 | |
| 408 | if t, ok := r.tools[name]; ok { |
| 409 | return t, name, nil |
| 410 | } |
| 411 | matches := map[string]Tool{} |
| 412 | for canonicalName, t := range r.tools { |
| 413 | b, ok := mcpBinding(t) |
| 414 | if !ok { |
| 415 | continue |
| 416 | } |
| 417 | for _, alias := range mcpBindingAliases(b) { |
| 418 | if name == alias { |
| 419 | matches[canonicalName] = t |
| 420 | break |
| 421 | } |
| 422 | } |
| 423 | } |
| 424 | if len(matches) == 1 { |
| 425 | for canonicalName, t := range matches { |
| 426 | return t, canonicalName, nil |
| 427 | } |
| 428 | } |
| 429 | if len(matches) > 1 { |
| 430 | candidates = make([]string, 0, len(matches)) |
| 431 | for canonicalName := range matches { |
| 432 | candidates = append(candidates, canonicalName) |
| 433 | } |
| 434 | sort.Strings(candidates) |
| 435 | } |
| 436 | return nil, "", candidates |
| 437 | } |
| 438 | |
| 439 | func mcpBinding(t Tool) (MCPBinding, bool) { |
| 440 | meta, ok := t.(MCPMetadata) |
| 441 | if !ok { |
| 442 | return MCPBinding{}, false |
| 443 | } |
| 444 | server := strings.TrimSpace(meta.MCPServerName()) |
| 445 | raw := strings.TrimSpace(meta.MCPRawToolName()) |
| 446 | if server == "" || raw == "" { |
| 447 | return MCPBinding{}, false |
| 448 | } |
| 449 | visible := raw |
| 450 | if v, ok := t.(MCPVisibleMetadata); ok && strings.TrimSpace(v.MCPVisibleToolName()) != "" { |
| 451 | visible = strings.TrimSpace(v.MCPVisibleToolName()) |
| 452 | } |
| 453 | pkg := "" |
| 454 | if p, ok := t.(MCPPackageMetadata); ok { |
| 455 | pkg = strings.TrimSpace(p.MCPPackageName()) |
| 456 | } |
| 457 | return MCPBinding{ |
| 458 | Package: pkg, |
| 459 | Server: server, |
| 460 | RawName: raw, |
| 461 | VisibleName: visible, |
| 462 | CallableName: t.Name(), |
| 463 | CapabilityID: "mcp-tool:" + server + "/" + raw, |
| 464 | }, true |
| 465 | } |
| 466 | |
| 467 | func mcpBindingAliases(b MCPBinding) []string { |
| 468 | aliases := []string{ |
| 469 | b.RawName, |
| 470 | b.VisibleName, |
| 471 | b.Server + "/" + b.RawName, |
| 472 | b.Server + "/" + b.VisibleName, |
| 473 | b.CapabilityID, |
| 474 | "mcp-tool:" + b.Server + "/" + b.VisibleName, |
| 475 | "mcp__" + portableMCPPart(b.Server) + "__" + portableMCPPart(b.RawName), |
| 476 | "mcp__" + portableMCPPart(b.Server) + "__" + portableMCPPart(b.VisibleName), |
| 477 | } |
| 478 | if b.Package != "" { |
| 479 | prefix := "mcp__plugin_" + portableMCPPart(b.Package) + "_" + portableMCPPart(b.Server) + "__" |
| 480 | aliases = append(aliases, prefix+portableMCPPart(b.RawName), prefix+portableMCPPart(b.VisibleName)) |
| 481 | } |
| 482 | return aliases |
| 483 | } |
| 484 | |
| 485 | // MCPBindingAliases returns accepted portable references for a binding. The |
| 486 | // canonical provider-visible name remains MCPBinding.CallableName. |
| 487 | func MCPBindingAliases(b MCPBinding) []string { |
| 488 | return append([]string(nil), mcpBindingAliases(b)...) |
| 489 | } |
| 490 | |
| 491 | func portableMCPPart(s string) string { |
| 492 | var b strings.Builder |
| 493 | for _, r := range s { |
| 494 | switch { |
| 495 | case r >= 'a' && r <= 'z', r >= 'A' && r <= 'Z', r >= '0' && r <= '9', r == '_', r == '-': |
| 496 | b.WriteRune(r) |
| 497 | default: |
| 498 | b.WriteByte('_') |
| 499 | } |
| 500 | } |
| 501 | return b.String() |
| 502 | } |
| 503 | |
| 504 | // Len returns the number of registered tools. |
| 505 | func (r *Registry) Len() int { |
| 506 | r.mu.RLock() |
| 507 | defer r.mu.RUnlock() |
| 508 | |
| 509 | return len(r.order) |
| 510 | } |
| 511 | |
| 512 | // Names returns the registered tool names in insertion order. |
| 513 | func (r *Registry) Names() []string { |
| 514 | r.mu.RLock() |
| 515 | defer r.mu.RUnlock() |
| 516 | |
| 517 | out := make([]string, len(r.order)) |
| 518 | copy(out, r.order) |
| 519 | return out |
| 520 | } |
| 521 | |
| 522 | // Schemas exports tool definitions in stable name order for the provider. |
| 523 | func (r *Registry) Schemas() []provider.ToolSchema { |
| 524 | r.mu.RLock() |
| 525 | defer r.mu.RUnlock() |
| 526 | |
| 527 | names := make([]string, len(r.order)) |
| 528 | copy(names, r.order) |
| 529 | sort.Strings(names) |
| 530 | |
| 531 | out := make([]provider.ToolSchema, 0, len(names)) |
| 532 | for _, name := range names { |
| 533 | t := r.tools[name] |
| 534 | if t == nil { |
| 535 | continue |
| 536 | } |
| 537 | out = append(out, provider.ToolSchema{ |
| 538 | Name: t.Name(), |
| 539 | Description: t.Description(), |
| 540 | Parameters: r.canon[name], |
| 541 | }) |
| 542 | } |
| 543 | return out |
| 544 | } |
| 545 |