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search: add BM25 ranking for FTS results with env-tunable k1/b and safe fallbacks (134339e)
add Docker support and metrics instrumentation (db54259)
docker: add docker-compose support for multi-profile setups; enhance README with detailed Docker usage instructions; introduce integration testing capabilities with a dedicated tester tool (4b46586)
search: add FTS5-backed text search with automatic LIKE fallback; detect FTS5 at startup and sync via triggers; fix README dims typo to 768 (17c5b27)
database: add GetRelations convenience wrapper; all tests green (1d14e45)
search: add Hybrid Search strategy (RRF fusion of text + vector); env toggle HYBRID_SEARCH with tunable weights (0af0748)
add jsonschema annotations to argument types for improved documentation (9ed4378)
docker: add multi-stage Dockerfiles for SSE and STDIO transports; update Makefile to include docker build target; enhance README with tool summary adjustments (ea9cf3f)
add OpenAI and Ollama embeddings providers (cd64197)
add pagination support to search functions in database and server (a1d93b4)
metrics: add tool result size histogram with sampling; keep low label cardinality\n\n- New Recorder.ObserveToolResultSize(tool, size) with sampling via METRICS_RESULT_SAMPLE_N\n- Prometheus histogram tool_result_size with generic buckets\n- Keeps cardinality low (labels: tool only)\n\nRefs: #3 (6e0987a)
add update and health check tools to MCP server (863e6cc)
embeddings: add VoyageAI provider and dimension adapter; wire provider and deps (417aa3c)
graph: add Walk and ShortestPath functions for graph traversal; implement corresponding argument types and server handlers (cad80a7)
entrypoint: allow MODE to override CMD; fallback to CMD when MODE unset (ffc012c)
docker: consolidate Dockerfile for multi-transport builds; remove separate Dockerfiles for SSE and STDIO (6c6d194)
tests: enhance integration tester with additional delete operations and increase step capacity (5d233f1)
enhance MCP server functionality with new tools and improved project context handling (2ffa1ba)
enhance MCP tool handlers with input/output schemas and annotations (cf027de)
enhance vector extraction and add test for entity creation (e07ba40)
implement DatabaseManager for entity and relation management (69fc23c)
database: implement GetNeighbors function to fetch 1-hop neighbors; add NeighborsArgs type for input parameters; enhance metrics with pool stats and statement cache tracking (a232560)
implement main application logic for MCP Memory LibSQL server (d441beb)
implement multiple embeddings providers and enhance DBManager (475ffeb)
embeddings: implement providers for OpenAI, Ollama, Gemini, Vertex AI, and LocalAI; wire env-based selection and docs; batch-generate embeddings when missing; enforce EMBEDDING_DIMS match (555ab06)
implement statement caching in DBManager for improved query performance (73181e2)
entrypoint: improve model loading and timeout handling (91d3a94)
db: introduce soft cascade via trigger on entities delete; simplify DeleteEntity\n\n- Add trg_entities_delete_cascade to remove observations/relations on entity delete\n- Replace manual multi-table delete with single DELETE relying on trigger\n\nRefs: #7 (fd79d3b)
metrics: record result sizes across tool handlers with sampled histogram\n\n- Observe counts of entities/relations/updates per tool\n- Uses ObserveToolResultSize (sampling via METRICS_RESULT_SAMPLE_N)\n\nRefs: #3 (bc119bb)
db: refine capability probing to be per-project DB handle (vector_top_k, fts5)\n\n- Track caps per project with capsByProject map\n- Adjust search codepaths to consult/update per-project flags\n- Avoid global probe; initialize on getDB(project)\n\nRefs: #5 (f3b528d)
multi-project: require projectName; add per-project token auth with optional env toggles and auto-init; enforce across tools (9206f65)
search: robust FTS queries + prefix handling; fallback improvements\n\n- FTS tokenizer (unicode61) with tokenchars=:-_@./ and prefix index\n- buildFTSMatchExpr to support Task:* (entity_name/content) and quoted phrases\n- downgrade to LIKE on parse/table errors without disabling FTS globally\n- normalize nil slices in read_graph/search_nodes/open_nodes for schema compliance\n- prompts: document query syntax/tips; README: add query rules & examples (85467eb)
graph): add neighbors/walk/shortest_path tools with DB implementations and tests; feat(metrics: stmt-cache/pool gauges + periodic emission; docs: update tools table and metrics section; bench: add search benches (e83617e)
observability: structured error logs per tool with low-cardinality key=value format\n\n- Add logToolError helper and log on failures across handlers\n- Keeps logs machine-parseable without new deps\n\nRefs: #3 (21982fd)
db: transactional bulk deletes with chunking; rely on cascade trigger\n\n- DeleteEntities now wraps deletes in a single tx, uses IN-chunking (<=500)\n- DeleteObservations uses tx + chunking for ids/contents\n- Leverages trg_entities_delete_cascade for cleanup\n\nRefs: #8 (8a52e82)
🐛 Bug Fixes
install: check for existing binary before installation and remove it if found (7d5d088)
db: close cached prepared statements on shutdown to prevent descriptor leaks\n\n- Close all cached *sql.Stmt per project before closing DBs\n- Clear stmtCache buckets\n- Leave behavior unchanged otherwise\n\nRefs: #2 (633710f)
makefile: correct conditional check in docker-test target for proper string comparison (cd52b5f)
entrypoint: correct indentation for conditional checks and improve readability (b4d5672)
correct indentation in README.md and update switch case formatting in provider.go for better readability (bcbd138)
enhance transaction handling and error reporting in DBManager methods (479d1cf)
ensure proper locking and embedding dimensions in DBManager (fd3d1f0)
metrics: make InitFromEnv idempotent via sync.Once to guard metrics listener start\n\n- Add process-wide sync.Once in metrics package\n- Prevent double-start from main/server\n- No behavior change when METRICS_PROMETHEUS is unset\n\nRefs: #1 (9aeefb8)
docker-compose: pass proper -addr : in command array (755f2b9)
db: pre-check relation endpoints and trim inputs to prevent FK failures in UpdateRelations (3803e4a)
sse: reduce idle disconnects with keep-alive headers, no server timeouts, and 15s SSE heartbeat\n\n- Add Cache-Control/keep-alive and disable proxy buffering\n- Set server timeouts to 0 for long-lived connections\n- Emit periodic SSE comment heartbeats to keep intermediaries from closing connections\n\nRefs: #11 (f4107b7)
search: remove tautological err check in FTS5 branch (40ab843)
deps: update dependency @libsql/client to v0.15.9 (d94d318)
deps: update dependency @modelcontextprotocol/sdk to v1.15.0 (6e7f943)
deps: update dependency @modelcontextprotocol/sdk to v1.3.1 (a4a79c8)
deps: update dependency @modelcontextprotocol/sdk to v1.3.2 (feb5604)
deps: update dependency @types/node to v22.10.7 (fdf2fd3)
deps: update dependency @types/node to v22.16.2 (26389d9)
deps: update dependency dotenv to v16.5.0 (9bed22b)
deps: update dependency dotenv to v16.6.1 (a00fe7e)
README: update client integration section with detailed transport options and example configurations for stdio and SSE; enhance usage patterns for Docker and raw binary execution (a7d379a)
readme: update EMBEDDING_DIMS value and enhance notes on dimensionality requirements (e1917e9)
update README and prompts guidance for dims adaptation, VoyageAI, and multi-project auth requirements (606953e)
Update README.md to include new quick start examples, tool summaries, and detailed usage for bulk delete operations. Enhanced documentation for embedding dimensions and transport options. (62d546e)
update README.md with new transport options and embedding dimensions (843b60e)
🎨 Styles
remove unnecessary whitespace in mcp_types.go and config.go (051a448)
🧑💻 Code Refactoring
add buildinfo package for versioning and update server versioning in MCPServer (1d81b93)
server: add TODOs for annotations and prompts; clean up output schema handling in tool registration (82132f3)
search: clean up error handling in SearchEntities function (55b912b)
database): standardize formatting in GetRelations function; test(server: enhance concurrent client test for SSE server (6706c35)
Enhance multi-project support in database and server (183b6af)
database): simplify pagination logic in Search function; style(server: format code for consistency (2b04053)
tests): simplify loop constructs in SSE server tests; style(server: improve code formatting for clarity (0872f88)
improve recent entities query to include name sorting and update test database configuration (2abf13d)
search: introduce SearchStrategy interface and delegate; keep internal path for fallback (22dfe51)
Remove obsolete database management files and types (84b1db1)
integration-tester: replace inline duration calculations with elapsedMsSince function to ensure minimum duration of 1ms (000ca6f)
replace log.Fatalf with panic for schema creation errors in MCPServer (07928e0)
simplify build process in Makefile and install script (27d7ee7)
database: simplify entity deletion logic by removing transaction handling; directly delete observations, relations, and entities (b08d1cb)
db: standardize formatting and indentation in DeleteEntity and DeleteEntities functions (c564ead)
standardize ProjectArgs field annotations across argument types (06501a8)
docker: unify memory service, env-driven ports, add entrypoint for MODE; decouple build/run in Makefile (af34efa)
update build and installation process in Makefile and install script (3b131d4)
update database URL in README and config to use libsql.db (2040907)
update install script to ensure binary is built with CGO_ENABLED and set executable permissions (fd900cb)
update install script to use binary location parameter and improve server error handling (60b7c3d)
update Makefile to use BINARY_NAME variable for consistency (c480d7c)
✅ Tests
database: add benchmark tests for entity search and hybrid search functionality (1d021f9)
server: add concurrent SSE client test to stress connections (b41d719)
search: add hybrid fallback test and ensure hybrid disabled by default in tests (74c474e)
