ceremony/drills/0.4.0.md

0.4.0 — drill record

Run 2026-07-29 by codex-bot-andresmgsl against release PR #207 head 7c755bcd402ba7f9a38ecd406a025c149c77aa57.

Where: disposable private repo codex-bot-andresmgsl/ceremony-drill-0.4.0, carrying the docs/CONSUMERS.md release caller and a fragment-mode fixture armed at 0.4.0-dev. The fixture had changelog.d/README.md, one release fragment, and a non-blank drill record. The repository is archived, pending the operator's delete.

Candidate-ref deviation

The pure consumer path cannot resolve CEREMONY_SELF_REF: "0.4.0" before the candidate creates that tag. No 0.4.0 branch was created in heavy-duty/ceremony. The scratch caller instead used codex-bot-andresmgsl/ceremony@drill/0.4.0, whose parent is PR #207 head 7c755bcd402ba7f9a38ecd406a025c149c77aa57 and whose only additional commit rewrites both CEREMONY_SELF_REF carriers to that same canonical candidate SHA. All runtime machinery was therefore fetched from the 0.4.0 candidate tree.

Probes

#	probe	run	result
1	merge-door ceremony	30445585532 (attempt 1)	✅ one 0.4.0 release; tag equals merge commit; main re-armed to 0.4.1-dev with only changelog.d/README.md
2	mislabeled ordinary PR	30445473977	✅ green NOTICE no-op; no tag or release
3	bare-version PR without release	30445513860	✅ refused at decide; no tag or release
4	re-run completed ceremony	30445585532 (attempt 2)	✅ refused because the tag/release already existed; release count stayed one
5	manual matching tag	30445658952	✅ 0.5.0 published with its changelog section; main untouched
6	mismatched tag	30445684268	✅ refused before publication; no 9.9.9 release, and the probe tag was removed afterward

The merge-door 0.4.0 tag and PR #3 merge commit were both 2b2d592ffcc5c376e55bd5fcf2dd5ffbdd692d64. Its release body was exactly:

- Fragment mode is exercised by the 0.4.0 drill.

Setup

The armed fixture was committed before the caller so the first workflow run had a real parent version to inspect. Installing the caller then produced green baseline run 30445432039.

After the unlabeled bare-version refusal, its merge commit was reverted to restore the armed fixture. That setup correction produced green no-op run 30445544068 before the merge-door probe began.