RE-call MCP Memory Server

flowchart LR

subgraph group_entry["Entry points"]
  node_cli["recall CLIcommands"]
  node_mcp["MCP servertool handlers"]
  node_sdk["Agent SDKin process"]
end

subgraph group_build["Generation build"]
  node_manifest["Source manifestimmutable input"]
  node_generations["Generation managerbuild, validate, promote"]
  node_parser["Parse and chunkdocuments to chunks"]
  node_embedder["Embedderlocal or hosted API"]
  node_graph_build["Semantic graphentities, relations"]
  node_calibration["Calibrationcertified threshold"]
end

subgraph group_serve["Trusted retrieval"]
  node_trusted_search["Trusted searchquery orchestrator"]
  node_gen_store["Generation storepinned generation"]
  node_retriever["Hybrid retrieverdense, full text, RRF"]
  node_reranker["Rerankeropt in"]
  node_trust_gate{{"Trust gateverdict or ABSTAIN"}}
end

subgraph group_reason["Reasoning"]
  node_reasoner["Reasoning queryevidence bundle, plan"]
  node_graph_expansion["Graph expansionone hop, before trust"]
  node_answer["Answer provideropt in LLM"]
end

subgraph group_facts["Provenance and facts"]
  node_provenance["Provenance controllerfact review"]
  node_ledger["Fact ledgerappend only"]
end

node_caller(("Agent or usercaller"))
node_postgres[("PostgreSQL + pgvectorgenerations, chunks, graph")]

node_caller -->|"runs"| node_cli
node_caller -->|"tool calls"| node_mcp
node_caller -->|"imports"| node_sdk
node_sdk -->|"reuses handlers"| node_mcp
node_cli -->|"generation build"| node_generations
node_mcp -->|"ingest uploads"| node_generations
node_generations -->|"reads sources"| node_manifest
node_generations -->|"parses, chunks"| node_parser
node_generations -->|"embeds chunks"| node_embedder
node_generations -->|"builds graph"| node_graph_build
node_generations -->|"requires certified"| node_calibration
node_generations -->|"writes generation"| node_postgres
node_graph_build -->|"writes graph"| node_postgres
node_cli -->|"calibrate, publish"| node_calibration
node_calibration -->|"stores threshold"| node_postgres
node_cli -->|"search"| node_trusted_search
node_mcp -->|"search, evidence"| node_trusted_search
node_trusted_search -->|"pins generation"| node_gen_store
node_gen_store -->|"reads active"| node_postgres
node_trusted_search -->|"retrieves"| node_retriever
node_retriever -->|"embeds query"| node_embedder
node_retriever -->|"dense, full text"| node_gen_store
node_retriever -.->|"reorders"| node_reranker
node_trusted_search -->|"evaluates"| node_trust_gate
node_mcp -->|"reasoning query"| node_reasoner
node_reasoner -->|"retrieves"| node_trusted_search
node_trusted_search -.->|"expands pre trust"| node_graph_expansion
node_graph_expansion -.->|"same generation graph"| node_postgres
node_reasoner -.->|"cited answer"| node_answer
node_mcp -->|"apply fact"| node_provenance
node_provenance -->|"fresh search"| node_trusted_search
node_provenance -->|"appends"| node_ledger
node_ledger -->|"stores"| node_postgres

click node_cli "https://github.com/GiulioDER/RE-call/blob/master/recall/cli.py"
click node_mcp "https://github.com/GiulioDER/RE-call/tree/master/recall_mcp"
click node_sdk "https://github.com/GiulioDER/RE-call/blob/master/recall_agent/memory.py"
click node_manifest "https://github.com/GiulioDER/RE-call/blob/master/recall/manifest.py"
click node_generations "https://github.com/GiulioDER/RE-call/blob/master/recall/generations.py"
click node_parser "https://github.com/GiulioDER/RE-call/blob/master/recall/document.py"
click node_embedder "https://github.com/GiulioDER/RE-call/blob/mast

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