feat: add memory_health diagnostic tool to core MCP profile - #95
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AhmedHamadto wants to merge 1 commit into
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feat: add memory_health diagnostic tool to core MCP profile#95AhmedHamadto wants to merge 1 commit into
AhmedHamadto wants to merge 1 commit into
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Adds a memory_health tool that returns node counts, relationship counts,
and integrity metrics in one call. Reports orphaned facts (no ABOUT
relationship to any entity), orphaned preferences, and entities without
embeddings.
Example output:
{"nodes": {"entities": 28, "facts": 26, "preferences": 17, ...},
"relationships": {"ABOUT": 22},
"integrity": {"orphaned_facts": 9, "orphaned_preferences": 17,
"entities_without_embedding": 0}}
Fixes neo4j-labs#91
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Summary
Adds a
memory_healthtool to the core MCP profile that returns graph integrity metrics in a single call. Reports node counts, relationship counts, and identifies orphaned nodes that have no ABOUT links.Example Output
{ "nodes": { "entities": 28, "facts": 26, "preferences": 17, "messages": 3, "traces": 24 }, "relationships": { "ABOUT": 22 }, "integrity": { "orphaned_facts": 9, "orphaned_preferences": 17, "entities_without_embedding": 0 } }Why This Matters
When entity linking fails silently (#77, #87), orphaned nodes accumulate with no visibility. During a recent audit, we discovered 9 orphaned facts and 17 orphaned preferences — all invisible without manual Cypher queries. This tool makes graph integrity checkable through the standard MCP interface.
Test Plan
3 integration tests in
tests/integration/test_memory_health.py:test_health_returns_node_counts— entity count is accuratetest_health_detects_orphaned_facts— facts without ABOUT are flaggedtest_health_detects_linked_facts— linked facts don't count as orphanedHealth query verified against a live Neo4j graph with 28 entities, 26 facts, 17 preferences — all counts accurate.
Fixes #91