claude-memory
Provides persistent, searchable memory for Claude Code using local SQLite, semantic embeddings, and full-text search, enabling Claude to recall and retrieve context across sessions and projects without external services.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Tim-Fischer-zh
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
rememberStore knowledge in persistent memory. Checks for duplicates via semantic similarity before storing. Returns a duplicate warning if a very similar memory already exists (>85% similarity). Include source_project/source_file for context tracking.
recallSearch persistent memory using semantic similarity, full-text search, or filters. Semantic search finds conceptually related memories even without keyword matches. Results are ranked by a hybrid score combining semantic similarity, text relevance, importance, and recency. Automatically tracks access…
update_memoryUpdate an existing memory. Re-embeds automatically if content changes.
forgetDelete a memory by ID. Cascades to embeddings and relationships.
list_categoriesList all memory categories with entry counts and embedding status.
relateCreate a relationship between two memories. Types: 'related', 'supersedes', 'caused_by', 'contradicts', 'supports', 'depends_on'.
find_relatedFind memories related to a given memory — both explicit relations and semantically similar memories.
consolidateFind groups of similar/duplicate memories that could be merged. Returns clusters of semantically similar memories grouped by topic. Use the 'merge' tool to combine selected groups into single entries.
mergeMerge multiple memories into one consolidated entry. Preserves relationships and combines tags. Deletes the originals.
visualizeOpen the memory visualization web UI in the browser. Shows a force-directed knowledge graph, stats, and searchable memory list.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
10/10 tools missing one or more hints — remember (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); recall (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); update_memory (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +7 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — visualize (line 804: exec(`open http://localhost:${port}`))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool inputs are validated
7/10 tool handlers declare input schemas (70%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Tool description accuracy
visualize: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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