BEHAVE-EXTRACTOR.md Phase A Step 10. Closes the discriminative
floor: six primitives emit, the five-class calibration grid is the
binding regression test for every subsequent phase.
* Phase A checklist boxes (Steps 0-10) ticked in
development/BEHAVE-EXTRACTOR.md.
* Phase A completion log appended inline to the design doc per
the "append phase logs to design docs" memory rule — captures
per-primitive confidence ranges and the 2026-05-02 empirical
anchors that drove threshold calibration.
* Hard gate: tests/profiler/behave_shell/test_calibration_grid.py
parametrised over five class shards, all green; skips cleanly
on BEHAVE_CALIBRATION_DIR unset.
Phases B-G expand horizontally across the registry. Phase H is
the full-corpus lockdown + v0 release. Worker
(BEHAVE-INTEGRATION.md Phase 4) is unblocked at this milestone —
it can wire per-session production against the Phase A engine
without waiting for the rest of the Tier-A corpus.
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