feat(brain): add brain_ingest, brain_search tools and extend search to wiki/

internal/skills/brain/handlers.go

@@ -10,13 +10,17 @@ import (
 	"net/http"
 )
 
-// Handle dispatches brain_query and brain_write tool calls.
+// Handle dispatches brain tool calls.
 func (s *Skill) Handle(ctx context.Context, tool string, args json.RawMessage) (json.RawMessage, error) {
 	switch tool {
 	case "brain_query":
 		return s.query(ctx, args)
 	case "brain_write":
 		return s.write(ctx, args)
+	case "brain_ingest":
+		return s.ingest(ctx, args)
+	case "brain_search":
+		return s.search(ctx, args)
 	default:
 		return nil, fmt.Errorf("unknown brain tool: %s", tool)
 	}
@@ -59,12 +63,62 @@ func (s *Skill) write(ctx context.Context, args json.RawMessage) (json.RawMessag
 	return s.post(ctx, "/write", a)
 }
 
+type ingestArgs struct {
+	Content string `json:"content"`
+	Source  string `json:"source"`
+	DryRun  bool   `json:"dry_run,omitempty"`
+}
+
+func (s *Skill) ingest(ctx context.Context, args json.RawMessage) (json.RawMessage, error) {
+	var a ingestArgs
+	if err := json.Unmarshal(args, &a); err != nil {
+		return nil, fmt.Errorf("parse args: %w", err)
+	}
+	if a.Content == "" {
+		return nil, fmt.Errorf("content is required")
+	}
+	if a.Source == "" {
+		return nil, fmt.Errorf("source is required")
+	}
+	if s.cfg.IngestSvcURL == "" {
+		return nil, fmt.Errorf("brain_ingest: INGEST_SVC_URL not configured")
+	}
+	return s.postTo(ctx, s.cfg.IngestSvcURL+"/ingest", a)
+}
+
+type searchArgs struct {
+	Query      string `json:"query"`
+	Collection string `json:"collection,omitempty"`
+	Limit      int    `json:"limit,omitempty"`
+}
+
+func (s *Skill) search(ctx context.Context, args json.RawMessage) (json.RawMessage, error) {
+	var a searchArgs
+	if err := json.Unmarshal(args, &a); err != nil {
+		return nil, fmt.Errorf("parse args: %w", err)
+	}
+	if a.Query == "" {
+		return nil, fmt.Errorf("query is required")
+	}
+	if a.Limit == 0 {
+		a.Limit = 5
+	}
+	if s.cfg.KBRetrievalURL == "" {
+		return nil, fmt.Errorf("brain_search: KB_RETRIEVAL_URL not configured")
+	}
+	return s.postTo(ctx, s.cfg.KBRetrievalURL+"/api/v1/search", a)
+}
+
 func (s *Skill) post(ctx context.Context, path string, body any) (json.RawMessage, error) {
+	return s.postTo(ctx, s.cfg.IngestBaseURL+path, body)
+}
+
+func (s *Skill) postTo(ctx context.Context, url string, body any) (json.RawMessage, error) {
 	b, err := json.Marshal(body)
 	if err != nil {
 		return nil, fmt.Errorf("marshal request: %w", err)
 	}
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, s.cfg.IngestBaseURL+path, bytes.NewReader(b))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(b))
 	if err != nil {
 		return nil, fmt.Errorf("build request: %w", err)
 	}

internal/skills/brain/skill.go

@@ -9,7 +9,9 @@ import (
 
 // Config holds brain skill configuration.
 type Config struct {
-	IngestBaseURL string // base URL of the ingestion HTTP server, e.g. http://localhost:3300
+	IngestBaseURL  string // base URL of the ingestion HTTP server (brain_query, brain_write)
+	IngestSvcURL   string // base URL of the ingestion-svc HTTP server (brain_ingest)
+	KBRetrievalURL string // base URL of the kb-retrieval server (brain_search)
 }
 
 // Skill implements registry.Skill for brain_query and brain_write.
@@ -32,10 +34,10 @@ func (s *Skill) Tools() []registry.ToolDef {
 	str := map[string]any{"type": "string"}
 	num := map[string]any{"type": "integer"}
 
-	return []registry.ToolDef{
+	tools := []registry.ToolDef{
 		{
 			Name:        "brain_query",
-			Description: "Search the hyperguild brain wiki for relevant knowledge. Call this before starting any significant task.",
+			Description: "BM25 full-text search across brain/knowledge/ and brain/wiki/ markdown files. Fast, no embeddings needed. Call before any significant task.",
 			InputSchema: schema([]string{"query"}, map[string]any{
 				"query": str,
 				"limit": num,
@@ -43,7 +45,7 @@ func (s *Skill) Tools() []registry.ToolDef {
 		},
 		{
 			Name:        "brain_write",
-			Description: "Write a raw knowledge note to the brain for later ingestion into the wiki.",
+			Description: "Write a raw knowledge note to brain/knowledge/ for later ingestion.",
 			InputSchema: schema([]string{"content"}, map[string]any{
 				"content":  str,
 				"type":     str,
@@ -52,4 +54,27 @@ func (s *Skill) Tools() []registry.ToolDef {
 			}),
 		},
 	}
+	if s.cfg.IngestSvcURL != "" {
+		tools = append(tools, registry.ToolDef{
+			Name:        "brain_ingest",
+			Description: "Ingest text content into the brain wiki (brain/wiki/). Calls an LLM to produce structured wiki pages. Use for substantial documents, articles, or knowledge worth structuring. Returns the list of wiki pages written.",
+			InputSchema: schema([]string{"content", "source"}, map[string]any{
+				"content": str,
+				"source":  map[string]any{"type": "string", "description": "human-readable name for the content, e.g. 'article-on-raft.md'"},
+				"dry_run": map[string]any{"type": "boolean"},
+			}),
+		})
+	}
+	if s.cfg.KBRetrievalURL != "" {
+		tools = append(tools, registry.ToolDef{
+			Name:        "brain_search",
+			Description: "Semantic vector search across the brain wiki using embeddings. Use when brain_query returns no results or you need conceptually-related results rather than keyword matches.",
+			InputSchema: schema([]string{"query"}, map[string]any{
+				"query":      str,
+				"collection": str,
+				"limit":      num,
+			}),
+		})
+	}
+	return tools
 }