Operator ruling (Andre, 2026-07-21): the STOP was correct and the diagnosis
right — §7 items 1-2 did not fail because the instrument is broken, but because
they were worded under the naive-funnel prior. Under the ratified posterior the
pool is a MIX (shared bridge → shared exit_signature → larger anonymity set →
higher H). Corrected pre-freeze, logged transparently (no HARKing).
- rq2p3-mechanism-prereg.md §7: item 1 re-anchored on the FROZEN bridge-federated
branch (injective fresh-bridge → m_i=1 → H≈0, constant c=1/C — a pool draws with
replacement so it cannot reproduce the zero-variance degeneracy); item 2 B=1 →
c=1.0 AND high H (maximal mix, "low H" refuted by construction); added a §7 scope
note (the gate validates the INSTRUMENT and must NOT pre-assert the H-vs-c sign —
that stays the two-sided confirmatory question H1/H2). Confirmatory hypotheses
unchanged.
- docs/stage-05-rq2p3-gate-clarification.md: dated deviation-rationale log (cites
the dry-pass output, no number invented; records the two-sided direction-agnostic
pre-commitment is untouched; the mix ρ 0→+0.838 is an exploratory finding that
strengthens note-unique-bridge-artifact.md).
- rq2p3_calibration.py: item-1 teeth moved to frozen_branch_regression() on the
untouched bridge-federated branch; item-2 now asserts c=1.0 AND high H; added
all_pass aggregate. confirm.py/stats.py/confirm_load_rq2.py untouched.
Re-run: all four gate items PASS with real teeth (all_pass=True). Synthetic/DRY
only, no confirmatory record read. FREEZE STAYS A HUMAN GATE: §10 empty, no
confirmatory RQ2-P3 cell until operator records the SHA-256 + signs off. Lead
prereg SHA f22331a72e... untouched; worktree-only.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
RQ2-P3 mechanism study (NEW prereg, approved-path/params-locked, not yet frozen):
pool-based willing-bridge instrument, concentration swept as a manipulated IV
(B∈{2,4,8}×α∈{0,1,2}), two-sided/direction-agnostic, run-level cluster bootstrap.
RQ3 companion run-brief (execution-freeze for the already-frozen RQ3): agent=qwen2.5:3b
local Ollama, churn kill_prob=30/steps=20, baselines + Holm-7 completion pinned.
note-unique-bridge-artifact.md: on-record analysis that the lead RQ2-P1 shrink is plausibly
a fresh-bridge-per-circuit artifact (unique exit-signature -> singleton set -> H~0), and that
realistic bridge reuse (a mix) may raise anonymity -> the mechanism study may qualify the lead
RQ2 headline. No edit to the frozen prereg or committed lead paper.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>