* test(#1962): add failing-first repro-hardening contract tests Epic #1957 Phase 3A. Source-text-is-the-product contract tests: PBT shrinking (fast-check/Hypothesis, minimized seed, manual-minimization degradation), the four oracle types (specified/derived/metamorphic/implicit with implicit flagged weakest), boundary neighbors (off-by-one/min-max/empty-singleton tied to the equivalence class), oracle_type in DEBUG Resolution, and the Phase 1A tie-in (minimized seed + real oracle => the mutation guardrail bites). Failing-first: reference, agent cross-refs, and template field do not yet exist. * feat(#1962): harden regression tests (PBT shrinking + oracle classification + boundaries) Epic #1957 Phase 3A. Extends Minimal Reproduction (shrinking) and Test-First Debugging (oracle classification + boundary neighbors): - Shrinking: wrap an input-space failing input in a property (fast-check JS/TS, Hypothesis Python) and store the MINIMIZED counterexample as the regression seed; degrade to manual minimization when no PBT framework is present. - Oracle classification: state specified / derived (contract/model) / metamorphic / implicit (crash, weakest) before writing the assertion; record under Resolution.oracle_type; never default to implicit silently. - Boundary neighbors: off-by-one, min/max, empty/singleton around the fixed defect's equivalence class. Together they turn the regression test into a root-cause check — what the Phase 1A mutation guardrail needs to bite. Full rules extracted to gsd-core/references/ debugger-repro-hardening.md. INVENTORY + manifest + agent-size baseline + install-parity goldens + AGENTS.md + DEBUG template updated. * fix(#1962): address orthogonal review (bounding, provenance, oracle scope, sufficient-triple) - HIGH: added a 'Bound the property/shrink run' section (60s timeout, degrade- to-manual on timeout, do-not-raise-default-run-limits, argv-not-shell) — the gauntlet violation the sibling references already honored. - Medium: test-provenance caveat (the failing input often comes from the bug report — author the generator from a sanitized description, cross-ref debugger-fix-acceptance.md). - Medium: oracle scope note — the 4 types cover deterministic bugs; non- deterministic failures re-route to stability-stress per bug-taxonomy. - Medium: Phase 1A tie-in corrected — seed+oracle is necessary not sufficient; boundary neighbors close the adjacent-input escape; the sufficient triple is seed+oracle+neighbors. - Low: preserve the original noisy repro as a secondary reference; operationalize 'equivalence class' (the predicate the fix draws). Nit: degradation reworded. * chore(#1962): backfill changeset pr number (PR #2409) --------- Co-authored-by: sim <sim@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.