0aa4202f6a
* test(#4135): regression rows for pristine regen coverage collapse RED skeleton: src/pristine-baseline.cts exports findPristineInGit as a null-returning stub (wired into verifyFile after the #4145 orphan tier, behavior-neutral) so the git-history rows fail behaviorally, not at require time. Failing-first rows: baseline_covered aggregate on a 1-of-13 multi-version fixture, coverageHeadline typed renderer, the opt-in --min-baseline-coverage gate (exit 3, >= threshold semantics, vacuous-pass and malformed-value boundaries), git-history baseline recovery (dropped-line catch + surviving-line verify + older-commit hop), findPristineInGit unit, Step 5a workflow headline contract, and the installer-side describeBaselineCoverage honest N-of-M summary with the collapse disk-state pinned. Negative-space rows pin today: non-git ok_no_baseline posture, no-match-no-adoption, #3657 drift never rescued, canonical precedence, and no git tier without --pristine-dir. * fix(#4135): headline baseline coverage, opt-in strict gate, git-history widening The #3407 promotion rule regenerates gsd-pristine/ baselines from the INCOMING release source and keeps only candidates byte-identical with the OUTGOING recorded hash — correct in isolation, but on a multi-version jump the surviving set is precisely the files upstream did NOT change. The verifier then reports ok_no_baseline (advisory, exit 0) for everything else, and no surface distinguishes a 12-of-13-unverified green run from a fully-verified one: the human summary printed Checked/Failures only, the JSON had no coverage aggregate, and the installer's update output gave per-bucket counts without N-of-M framing. All three issue directions, none exclusive: - Report coverage prominently: --json gains an additive baseline_covered aggregate; the human summary leads with 'Baseline coverage: N of M file(s)...' on every run plus an advisory section naming each skipped file and reason; the installer prints an honest covered-of-modified line via the exported describeBaselineCoverage helper (typed return, exact contract); workflow Step 5a computes and prints the headline before any pass/fail framing. - Fail louder on low coverage: opt-in --min-baseline-coverage <0..1> exits with new documented code 3 when coverage falls below the threshold (>= semantics; empty run vacuously passes; content failure exit 1 outranks it; malformed values are usage errors, exit 2). Default posture unchanged — no_baseline stays advisory per #934. - Widen the promotion rule (its only trustworthy form): when no baseline resolves under gsd-pristine/ and a hash is recorded, the verifier now recovers the baseline from the config dir's own git history — the workflow's documented Option A — anchored by the same authority every tier trusts, exact pristine_hashes sha-256 equality. Read-only (git log/git show, windowsHide per #685), bounded (100 commits/file, 10s/subprocess), null-on-any-failure so ok_no_baseline remains the universal fallback. Tier order: canonical join -> #4145 orphan scan -> git history -> OK_NO_BASELINE; #3657 drift and canonical precedence untouched. Hash validation in saveLocalPatches is NOT relaxed — the collapse is legitimate conservatism; hiding it was the bug. Measured on the issue's shape (13 files, 12 changed upstream, 1.10->1.12): non-git installs report baseline_covered 1/13 with the headline and can gate at exit 3; a git-managed config dir with the outgoing bytes in history verifies 13/13. Review fixes folded in: workflow headline derives the unverified count from checked - baseline_covered (not the drift+no_baseline sum), and the new site-scoped allow-test-rule annotation carries its ADR-456 see-ref on the marker line. Emitted-Drift-Ack-Growth: reapply-patches.md — #4135 — +20 lines / ~1.5 KB, prose and bash only: two additive parse lines (BASELINE_COVERED, CHECKED_COUNT), a Step 5a coverage-headline block printed BEFORE any pass/fail statement (documents the opt-in --min-baseline-coverage exit-3 gate), and one Option B sentence noting the verifier's read-only git-history fallback. No step ordering, gate, tool-invocation, or dispatch shape changed; 5a's fail/drift/advisory handling is unchanged, the headline only precedes it. * chore(#4135): backfill PR number into changeset fragment --------- Co-authored-by: agent-4135 <agent-4135@gsd.local>
Changeset Fragments
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
See #2975 for the full rationale.
Adding a fragment
node scripts/changeset/new.cjs \
--type Fixed \
--pr 1234 \
--body "fix the thing — explain the user-visible change in one sentence"
This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.
Format
---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.
Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.
Opting out
PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.
At release time
Promotion is automatic. The release workflow's finalize job runs:
node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty
This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.
Archived fragments
.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.