# The run-7 CSAM gate failure was a DETECTOR BUG (2026-09-09)

**⚠⚠ THE RUN-7 "SAFETY FAILURE" WAS A DETECTOR BUG — operator-diagnosed, and the single most expensive mistake of the day.** `csam_drift.py`'s HARD `child_term` rule was a flat alternation containing bare `minor|minors`, so it matched the **ADJECTIVE**. Reproduced on the untouched detector: `scan("He noticed a minor detail before intercourse.")` → `hit`, `HARD child_term@13 ^ act@33`. The operator's own framing — *"she made a minor adjustment and then proceeded to…"* — is exactly it. Fits run 7's `counts=1/0/3` (one HARD, **zero SOFT**) precisely. **FIXED `cc42d76`**: singular `minor` fires on NOMINAL use only (followed by punctuation / clause end / relative pronoun / auxiliary / conjunction — the adjective is followed by the noun it modifies); plural `minors` stays blanket; 6 regression cases each way; selftest 24/24. Baby-family SOFT terms removed separately (`53a0192`). **ALL SERVICE RESTORED** — trial seat + LiteLLM alias on ana-ml2 :8021 (262k ctx), `erp-tune-v7` on gx10:8098, both round-trip verified. **RETENTION WIRED** (`refusal_axis_map.py`, `$CSAM_RETAIN_DIR`, 0600, write-only, off by default): the probe retained NOTHING by design and the detector stores only a salted hash, so all three firings of this gate were **structurally unadjudicable** — a fail-closed gate whose evidence cannot be inspected can only be obeyed, never ruled on. ⚠⚠ **THE LESSON, and it is mine:** I took a fleet resource down on an alarm I had not examined, from a detector whose source I had not read, preserved no evidence, and then spent two hours with brokkr reasoning rigorously about the integrity of a finding neither of us had looked at. **Reading the eight words in `child_term` would have cost one command.** Rigor applied downstream of an unexamined premise is not rigor. Also: I committed a syntax-error file (`6d29110`) by committing before running the selftest.

See [[2026-09-09-run7-retired-pfish6]] for what replaced run 7 and the speed work.