polyg-mcp
A multi-graph memory MCP server that traces cause-effect chains across semantic, entity, temporal, and causal graphs to answer 'why' questions with confidence-scored paths, enabling agents to reason beyond simple similarity retrieval.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Captain-Jay29
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.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
Trubo: Login callback CSRF/session fixation
Turbo: Unexpected local code execution during Yarn Berry detection
CLASSIFIER_MAX_TOKENS1000 # Intent classifier token limitEMBEDDING_MODELtext-embedding-3-smallFALKORDB_GRAPHFALKORDB_HOST"": "localhost",FALKORDB_PASSWORDFALKORDB_PORT"": "6379"FALKORDB_QUERY_TIMEOUT30000 # Max query execution (ms)KEEP_TEST_DATALLM_MODELgpt-4o-miniMAGMA_CAUSAL_DEPTHMAGMA_ENTITY_DEPTHMAGMA_MAX_CONTEXT_LENGTHMAGMA_MAX_NODES_PER_VIEWMAGMA_MAX_QUERY_LENGTHMAGMA_MIN_NODES_PER_VIEWMAGMA_MIN_SEMANTIC_SCOREMAGMA_MULTI_VIEW_BOOSTMAGMA_SEMANTIC_TOP_KMAGMA_TEMPORAL_DEPTHOPENAI_API_KEY"": "your-key-here",POLYG_MAX_RETRIES3 # LLM retry with exponential backoffPOLYG_PARALLEL_TIMEOUT30000 # Graph expansion timeout (ms)SYNTHESIZER_MAX_TOKENS2000 # Synthesizer output limitPORTTool 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
15/15 tools missing one or more hints — get_statistics (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); clear_graph (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); remember (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +12 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.
Tool inputs are validated
Only 0/15 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool test coverage
Only 1/15 tools referenced in tests (7%)
Write tests that reference each tool by name so every tool has at least one test.
Dev dependencies
2 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
Domain consistency
npm scope @polyg-mcp doesn't match GitHub owner captain-jay29
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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