Knowledge Fabric
invarcore/knowledge-fabric
Multi-tenant hybrid RAG & evidence verification MCP server enforcing PostgreSQL RLS.
- GitHub stars
- 8
- tools
- 8
- transport
- STDIO
- last updated
- Nov 8, 2026
Tools
8 toolsPublic tool metadata for what this MCP can expose to an agent.
retrieve_evidenceExecutes retrieval (hybrid RRF, lexical full-text, or semantic vector) and returns structured evidence package with citations, per-leg health, and relevance scores.
Executes retrieval (hybrid RRF, lexical full-text, or semantic vector) and returns structured evidence package with citations, per-leg health, and relevance scores.
No parameter schema in public metadata yet.
get_evidenceRetrieves a specific cited chunk by its database ID with complete provenance and metadata.
Retrieves a specific cited chunk by its database ID with complete provenance and metadata.
No parameter schema in public metadata yet.
get_documentRetrieves the full content and metadata for a specific document, scoped to tenant.
Retrieves the full content and metadata for a specific document, scoped to tenant.
No parameter schema in public metadata yet.
explain_retrievalReturns detailed diagnostics: lexical ranks, vector distances, per-leg latencies, and RRF fusion scores.
Returns detailed diagnostics: lexical ranks, vector distances, per-leg latencies, and RRF fusion scores.
No parameter schema in public metadata yet.
get_index_statusReturns index health diagnostics: total documents, total chunks, and document counts per source type.
Returns index health diagnostics: total documents, total chunks, and document counts per source type.
No parameter schema in public metadata yet.
check_consistencyAudits relational database invariants (orphaned chunks, empty docs, null tenants, missing embeddings).
Audits relational database invariants (orphaned chunks, empty docs, null tenants, missing embeddings).
No parameter schema in public metadata yet.
health_checkVerifies database connectivity, row counts, embedding provider status, and dimension alignment.
Verifies database connectivity, row counts, embedding provider status, and dimension alignment.
No parameter schema in public metadata yet.
list_sourcesLists ingested document source types and document counts, scoped to the calling tenant.
Lists ingested document source types and document counts, scoped to the calling tenant.
No parameter schema in public metadata yet.
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Knowledge Fabric & Intent Fabric
Knowledge Fabric
Vendor-neutral, governance-first evidence retrieval for AI systems.
Native PostgreSQL + pgvector • Hybrid RRF Fusion • Cross-Encoder Reranking • Dual-Mode Multi-Tenancy • MCP-Native
Details
- Repository
- github.com/invarcore/knowledge-fabric
- Website
- invarcore.com
- Categories
- Databases, AI & LLM Tools, Documents & Knowledge
- Package
knowledge-fabric- Transport
- STDIO
- Registry
- MCP registry, active
