Seven findings from the two-axis review, all fixed in place. THE ONE THAT MATTERS: cmdTodoComplete validated sourcePath and targetPath and then ran every fs call against the RAW strings — existsSync, statSync, readFileSync, platformWriteSync, unlinkSync, and the dry-run path payload — never sourceCheck.resolved / targetCheck.resolved. That is the exact "validate one path, use another" shape ADR-4650 names as the defect this epic exists to prevent, and it is the same bug this phase had just fixed in check-command-router. Committed inside the fix for it. All I/O now uses the resolved paths; user-facing messages still echo the raw filename, never a resolved absolute path. A VACUOUS TEST, and the false doc claim it was propping up. The test "[RED #4327] an absolute path outside the project is rejected" would have passed with ZERO containment logic: path.join(pendingDir, '/abs/outside/x') yields <pendingDir>/abs/outside/x — Node does not let a later absolute segment escape — so the name is FOLDED under the root, passes containment, and simply 404s. The test only ever observed "Todo not found". It now asserts what is actually true and actually valuable: an absolute name is neutralized, and the real outside file is not read, not moved, and still present afterward. docs/CLI-TOOLS.md claimed such a path "is rejected as a usage error", which was false; it now describes the fold-under-root behavior. Traversal and embedded separators ARE rejected, and those claims stand. DUPLICATION THIS EPIC EXISTS TO REMOVE. resolvePath already did isAbsolute-or-join + validatePath + reject; cmdGapAnalysisPlanPost and cmdCheckPredicate each re-inlined the identical triplet in the same file. Both now call resolvePath. Cost, stated rather than hidden: its generic message replaces the two sites' distinct "phase-dir escapes…" wording. The message still names the offending input, and one predicate with one message is the point. SYMLINK COVERAGE was required by #4652's "Done when" and was missing. Added for both the todos root and --phase-dir, skipping cleanly on EPERM so the Windows lanes do not fail where unprivileged symlink creation is disallowed. Both fast-check properties were UNSEEDED. Seeded now. The changeset named "check decision-coverage-plan" as a boundary; that is a caller of the shared resolvePath, which the body never mentioned. Corrected. DISCLOSED, not hidden: ctx.phaseDir is now always the resolved ABSOLUTE path, so ${PHASE_DIR} interpolation and the "not found in <targetDir>" message show an absolute value where a relative --phase-dir previously produced a relative one. That is an observable output change. A test pins it and docs/reference/gate-predicates.md states it. Also regenerated scripts/lib/platform-conformance-tier.generated.cjs and its macos twin — the new tests changed check-predicate.test.cjs's tier classification. Caught by npm run lint:ci locally rather than by a bench run. 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.