cebef3a07c
* Introduced EmbeddingModel method in Client and Provider interfaces * Updated InsertThought and SearchThoughts methods to handle embedding models * Created embeddings table and updated match_thoughts function for model filtering * Removed embedding column from thoughts table * Adjusted permissions for new embeddings table
112 lines
3.0 KiB
Go
112 lines
3.0 KiB
Go
package tools
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import (
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"context"
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"fmt"
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"strings"
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"github.com/google/uuid"
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"github.com/modelcontextprotocol/go-sdk/mcp"
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"git.warky.dev/wdevs/amcs/internal/ai"
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"git.warky.dev/wdevs/amcs/internal/config"
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"git.warky.dev/wdevs/amcs/internal/session"
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"git.warky.dev/wdevs/amcs/internal/store"
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)
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type RecallTool struct {
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store *store.DB
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provider ai.Provider
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search config.SearchConfig
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sessions *session.ActiveProjects
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}
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type RecallInput struct {
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Query string `json:"query" jsonschema:"semantic query for recalled context"`
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Project string `json:"project,omitempty" jsonschema:"optional project name or id; falls back to the active session project"`
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Limit int `json:"limit,omitempty" jsonschema:"maximum number of context items to return"`
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}
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type RecallOutput struct {
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Context string `json:"context"`
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Items []ContextItem `json:"items"`
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}
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func NewRecallTool(db *store.DB, provider ai.Provider, search config.SearchConfig, sessions *session.ActiveProjects) *RecallTool {
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return &RecallTool{store: db, provider: provider, search: search, sessions: sessions}
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}
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func (t *RecallTool) Handle(ctx context.Context, req *mcp.CallToolRequest, in RecallInput) (*mcp.CallToolResult, RecallOutput, error) {
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query := strings.TrimSpace(in.Query)
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if query == "" {
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return nil, RecallOutput{}, errInvalidInput("query is required")
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}
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project, err := resolveProject(ctx, t.store, t.sessions, req, in.Project, false)
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if err != nil {
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return nil, RecallOutput{}, err
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}
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limit := normalizeLimit(in.Limit, t.search)
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embedding, err := t.provider.Embed(ctx, query)
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if err != nil {
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return nil, RecallOutput{}, err
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}
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var projectID *uuid.UUID
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if project != nil {
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projectID = &project.ID
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}
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semantic, err := t.store.SearchSimilarThoughts(ctx, embedding, t.provider.EmbeddingModel(), t.search.DefaultThreshold, limit, projectID, nil)
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if err != nil {
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return nil, RecallOutput{}, err
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}
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recent, err := t.store.RecentThoughts(ctx, projectID, limit, 0)
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if err != nil {
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return nil, RecallOutput{}, err
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}
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items := make([]ContextItem, 0, limit*2)
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seen := map[string]struct{}{}
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for _, result := range semantic {
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key := result.ID.String()
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seen[key] = struct{}{}
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items = append(items, ContextItem{
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ID: key,
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Content: result.Content,
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Metadata: result.Metadata,
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Similarity: result.Similarity,
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Source: "semantic",
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})
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}
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for _, thought := range recent {
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key := thought.ID.String()
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if _, ok := seen[key]; ok {
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continue
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}
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seen[key] = struct{}{}
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items = append(items, ContextItem{
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ID: key,
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Content: thought.Content,
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Metadata: thought.Metadata,
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Source: "recent",
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})
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}
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lines := make([]string, 0, len(items))
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for i, item := range items {
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lines = append(lines, thoughtContextLine(i, item.Content, item.Metadata, item.Similarity))
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}
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header := "Recalled context"
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if project != nil {
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header = fmt.Sprintf("Recalled context for %s", project.Name)
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_ = t.store.TouchProject(ctx, project.ID)
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}
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return nil, RecallOutput{
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Context: formatContextBlock(header, lines),
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Items: items,
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}, nil
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}
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