Agent-consumer column of the two-part brain intent↔interface study.
Reconstructs the knowledge-act behind every brain MCP call in the
Claude Code agent transcripts on koala (the only corpus with brain
calls; brain/sessions and agentsquad eval logs carry none).
46 distinct knowledge-acts, 37% interface mismatch, 0% intent_unclear.
Headline gap: no update/supersede verb → agents blind re-write same
slug (5x); no read-after-write → lexical re-query of own note (4x);
lexical-only reads → semantic-as-keyword-stuffing chains (3x);
brain_answer hedged with parallel brain_query.
Canonical schema brain-intent-extraction.md absent on host; vocab
reconstructed, every row tagged schema_source=reconstructed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
