The gate now speaks the protocol agents use
any agent
mcp client
Claude Code · Cursor
stdio
retrieve
top-k · citations · scores
answer_evidence
floor 0.68 · never guesses
graph_paths
KuzuDB · multi-hop
one contract
cite the chunk or path
abstain: floor + best
unbuilt graph errors
keyless · no generator
cited evidence
best 0.78 · in corpus
explicit abstention
best 0.47 < 0.68