Shared Go module: pgvector + sqlite memory backends with MCP server for Lab Director
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Defines six tools (memory_remember, _recall, _wakeup, _relate, _relations, _forget) with JSON schemas. JSON-RPC line-delimited stdio. Backend-agnostic — any memory.Store implementation works. Tests verify initialize/tools/list/tools/call lifecycle. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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| embedding | ||
| mcp | ||
| sqlite | ||
| .gitignore | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| README.md | ||
| store.go | ||
| tokencount.go | ||
lab-director-memory
Shared memory store for Lab Director and the lab-director-plugin Claude Code plugin.
What it is
A Go module that exposes a Store interface for structured, vector-indexed memory. Two interchangeable backends:
- pgvector — PostgreSQL + pgvector. Used by Lab Director's backend for cluster-canonical memory.
- sqlite — SQLite + sqlite-vec. Used by the plugin's bundled MCP server for local memory.
Both backends share the same wire protocol (an MCP server that speaks the same tools). Sync between them happens via Lab Director's existing REST API.
API surface
type Store interface {
Remember(ctx, RememberInput) (*Entry, error)
Recall(ctx, RecallInput) ([]RecallResult, error)
WakeUp(ctx, scope) (*WakeUpContext, error)
Relate(ctx, RelateInput) (*Relation, error)
Relations(ctx, entryID) ([]Relation, error)
Forget(ctx, id) error
}
type Embedder interface {
Embed(ctx, text) ([]float32, error)
}
Construct via:
import "forgejo.aaron.reynoza.org/aaron/lab-director-memory/pgvector"
import "forgejo.aaron.reynoza.org/aaron/lab-director-memory/sqlite"
import "forgejo.aaron.reynoza.org/aaron/lab-director-memory/embedding"
emb := embedding.NewOllamaEmbedder("http://localhost:11434", "nomic-embed-text")
pgStore := pgvector.NewStore(pool, emb)
sqStore, _ := sqlite.NewStore("/path/to/memory.db", emb)
MCP server
go run ./cmd/memory-mcp -backend=sqlite -db=/path/to/memory.db
go run ./cmd/memory-mcp -backend=pgvector -dsn=postgres://...
Stdio JSON-RPC. Tools: memory_remember, memory_recall, memory_wakeup, memory_relate, memory_relations, memory_forget.
License
MIT.