mcp-brain-tools (j3k0/mcp-elastic-memory) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Provides a scalable knowledge graph implementation for Model Context Protocol using Elasticsearch, enabling AI models to store and query information with advanced search capabilities, memory-like behavior, and multi-zone architecture.
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j3k0
Source: modelscope
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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
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
AI_API_BASEThe hook uses the same ES_NODE, AI_API_KEY/GROQ_API_KEY, , and AI_MODEL env vars (set them in the env block of your settings, or export them in your shell profile).AI_API_KEYThe hook uses the same ES_NODE, /GROQ_API_KEY, AI_API_BASE, and AI_MODEL env vars (set them in the env block of your settings, or export them in your shell profile).AI_MODELThe hook uses the same ES_NODE, AI_API_KEY/GROQ_API_KEY, AI_API_BASE, and env vars (set them in the env block of your settings, or export them in your shell profile).ES_NODEOr point to your own instance via environment variable.ES_PASSWORDElasticsearch passwordES_USERNAMEElasticsearch usernameGROQ_API_KEY"": "your-key-here"GROQ_MODELSopenai/gpt-oss-120b,llama-3.3-70b-versatile Comma-separated model listKG_DEFAULT_ZONEdefault Default memory zoneKG_INDEX_PREFIXknowledge-graph Elasticsearch index prefixMEMORY_FILE_PATHMEMORY_HOOK_AI_TIMEOUTMEMORY_HOOK_CONTEXT_LINESMEMORY_HOOK_ES_TIMEOUTMEMORY_HOOK_MAX_RESULTSMEMORY_HOOK_MIN_SCOREMEMORY_HOOK_MIN_WORDSMEMORY_HOOK_ZONESMEMORY_SAVE_AI_TIMEOUTMEMORY_SAVE_MIN_ASSISTANT_WORDSMEMORY_SAVE_TRANSCRIPT_LINESTool 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
29/29 tools missing one or more hints — create_entities (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_relations (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); add_observations (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +26 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.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tool test coverage
Only 1/29 tools referenced in tests (3%)
Write tests that reference each tool by name so every tool has at least one test.
Secrets stay with their owner
2 secret/sensitive values flow into network calls (AI_API_BASE → dynamic, AI_API_BASE → dynamic) (1 other flows matched canonical API hosts)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
Production dependencies are patched
0 critical, 1 high severity in production deps — @modelcontextprotocol/sdk@0.6.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
2 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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