* fix(#3842): stage the emitted-drift-ack sweep around open PRs The guard-no-ack-on-next sweep (#3078) deleted every all-spent fragment under tests/emitted-drift-acks/ unconditionally. When an open PR still modified the same fragment file, that delete became a modify/delete conflict on the PR's next merge attempt -- the exact shared-file conflict fragments were adopted (#2914) to eliminate, reintroduced by the sweep itself. The first real sweep hit three open, outside- contributor PRs simultaneously (#3330, #3774, #3648), each with the swept fragment as its only conflicting path. assertNoAllSpentFragments now accepts an optional openPrTouchedPaths set (or the sentinel 'unknown') and partitions all-spent fragments into "safe to sweep" and "held" -- a held fragment is reported informationally, never as a failure, and is swept once the touching PR merges or closes. fetchOpenPrTouchedAckPaths computes the touched set with a single `gh pr list --json number,files` call. The guard-next codepath is factored out of main() into the exported, dependency- injectable runGuardNext() so this wiring is unit-testable without a real, network-dependent `gh` binary. The new behavior is strictly opt-in via a --defer-to-open-prs flag, wired only from the guard-no-ack-on-next job in test.yml (which also gains pull-requests: read and a GH_TOKEN env for the `gh` call). Every pre-#3842 caller -- including every existing test -- is unaffected when the flag is omitted. CONTRIBUTING.md's "Why fragments, not one file (#2914)" section now documents the staged-sweep policy so it no longer reads as though fragments are unconditionally conflict-free once spent. Refs #3842 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#3842): unify the failed-open-PR-check message to one greppable phrase The remote matrix (commit 4ec4527fb) failed two tests on the fail-closed path: assertNoAllSpentFragments's 'unknown' sentinel branch described the failure as "...could not be determined this run...", while runGuardNext's catch around fetchOpenPrTouchedAckPaths described the same condition as "open-PR check failed (<err>)". Both messages were genuinely present and informative (not missing or empty), but they used different wording for the same fail-closed condition, so there is no single string a human scanning CI output can search for to find out why nothing got swept. Unify both sites on "open-PR check unavailable" -- runGuardNext's line now reads "open-PR check unavailable — <err.message>", and assertNoAllSpentFragments's holdAll message now leads with "deferred (open-PR check unavailable): ...". This is a real fix to the fail-safe path's diagnosability, not a relaxed test assertion: the two now-failing tests already expected this exact phrase, and the fix makes the code say what the tests (correctly) expected instead of loosening them to match arbitrary prior wording. Refs #3842 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#3842): backfill changeset PR number and retype to Fixed pr:0 backfilled to 3847. Retyped Changed -> Fixed: the change repairs broken sweep behaviour rather than adding any, and its contributor-facing documentation lives in CONTRIBUTING.md at the repo root, which lint-docs-required does not count. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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.