* fix(#3850): surface gaps_found VERIFICATION files in audit-uat cmdAuditUat admits `human_needed` OR `gaps_found`, but parseVerificationItems had a body only for the first and returned an empty array for the second — standing on a comment deferring to `plan-phase --gaps`, a different command audit-uat never reaches. Since cmdAuditUat pushes a file into `results` only when `items.length > 0`, a `gaps_found` report did not under-report: it vanished, taking its phase's `by_phase` row with it, so a clean-looking total gave the reader no cue anything was skipped. Eligibility now has one owner (the caller) and parseVerificationItems reports what the file says. The closed-entry filter could not be built on extractFrontmatter: its array-item parser keeps only each `- ` entry's FIRST line and has no notion of nested key/value objects, so an entry's `status:`/ `resolution:` siblings never reach its output and a closed entry is indistinguishable from an open one downstream. Rather than grow a competing object-list parser — or change extractFrontmatter, whose blast radius is every frontmatter consumer in the repo — this reads the raw segment BEFORE the flattening, via the existing anchored sliceTopLevelFrontmatterSegments, and hands it to the `## Gaps` machinery that already parses exactly this `- `-opened, indentation- continued shape. The human_needed path is byte-for-byte unchanged: same reader, same display names, same numbering, no resolved-entry filtering — pinned by a test and verified by identical CLI output on base and head. parseGapsItems keeps its narrower `status: resolved` rule so no *-UAT.md behaviour moves. Closes #3850 * chore(#3850): backfill changeset pr number for #3879 * fix(#3850): one parse per entry, one fence parser, one resolved-entry rule Adversarial review on #3879: B1, B2, M3, m5, m8 and n9. B1 — `sliceFrontmatterArrayEntries` hand-rolled a second frontmatter fence regex, which re-asserted the byte-0 rule #2977 removed: a BOM'd file (PowerShell 5.1 `>`/`Out-File` writes one by default) sliced nothing, so a `gaps_found` report vanished from the audit exactly as it did before this fix — this issue's own symptom, on a platform the repo already has a named defect class for. `extractFrontmatter`'s BOM+fence logic is now factored out as `frontmatterRegion` and shared. One fence parser, not two. B2 — the resolved-entry skip paired two DIFFERENT parsers by array index: `parseYamlRegion` is indent-blind, `splitGapsEntries` is indent-anchored. A block sequence written at its key's indent — ordinary, legal YAML — makes them disagree about entry count, and from the first disagreement every index names a different entry, so an OPEN entry inherits a CLOSED one's resolution and is silently dropped. That is the defect this PR exists to fix, reintroduced inside the fix. Display name and sibling fields now come from ONE parse of the raw slice; `frontmatterEntryDisplayName` applies `parseQuotedScalar` exactly as `parseYamlRegion` does, so the string is byte-identical to what `extractFrontmatter` produced. The flattened array remains the #2286 GATE, but is no longer the source of items. `sliceFrontmatterArrayEntries` also takes the LAST duplicate key, matching `parseYamlRegion`'s last-wins assignment. M3 — `frontmatterEntryToUatItem` is the single entry->UatItem mapper both readers use, rather than two copies differing only in `result`. m8 — closed entries are skipped on BOTH statuses. The earlier asymmetry cited an acceptance criterion #3850 does not contain: the issue has no AC section, and its suggested fix (2) states the skip unconditionally, naming a file with 14 of 16 entries resolved. That file is `human_needed`, so the asymmetry left the reporter's own scenario over-reporting by 14. m5 — `sliceTopLevelFrontmatterSegments`' contract doc names both consumers and says the column-0 boundary rule is now a cross-module contract. n9 — the vestigial bare block is gone and its body de-indented. Tests: the B1 BOM case, B2's nested-sequence and bare-bullet repros, a CRLF fixture (M4 — it survived by accident, now pinned) and the unified skip rule. Fail-first verified by running the new tests against the pre-fix build: the BOM, nested-sequence and unified-skip cases are red there. * fix(#3850): read the entries as objects, not as re-parsed display text Rebased onto `next`, which changed the ground this fix stood on. ADR-3473 §8.1 (#3881) replaced the hand-rolled frontmatter scanner with the vendored js-yaml: `parseQuotedScalar` and `parseYamlRegion` no longer exist, and an object entry now flattens to `test: A, resolution: R` rather than to its first line. The original mechanism existed ONLY to work around that lossy first-line flattening — it sliced the raw frontmatter segment and re-parsed each entry by hand so a `resolution:` sibling was visible at all. With a real parser upstream that workaround is obsolete, so it is deleted rather than repaired: `sliceFrontmatterArrayEntries`, `frontmatterEntryDisplayName`, the `splitGapsEntries`/`extractGapEntryFields` reuse and the second fence regex are all gone. `frontmatter.cts` instead exposes `frontmatterObjectListEntries(content, key)` — the same parse `extractFrontmatter` runs (same BOM strip, same byte-0 fence, same anchor/alias and sentinel guards, same ambiguous-colon repair), stopping one step before the display flattening. `flattenObjectListItem` is exposed alongside it so a caller deriving a display name produces the byte-identical string `extractFrontmatter` would have. That collapses the review's blockers into properties of the parse rather than things this fix has to get right: - B1 (BOM) — shares `extractFrontmatter`'s strip; verified through the CLI. - B2 (index pairing) — there is no second reader. Display name and sibling fields come from one object. - M3 (duplicate mapper) — one `frontmatterEntryToUatItem` for both readers. - M4 (CRLF) — js-yaml's, not ours; verified through the CLI. Also confirmed on the rebased base, per review: #3850 still reproduces on `next` after #3707 landed (`total_files: 0`, `total_items: 0` on a `gaps_found` fixture), so this PR is still doing work #3707 did not do. Nothing was dropped as redundant. One behaviour note: `entryField` returns a present value verbatim and treats only whitespace-only as absent. Trimming would rewrite an author's `truth:` on its way to becoming the display name. * fix(#3850): keep every frontmatter list entry at its own row Review round 3's Blocker. `frontmatterObjectListEntries` filtered its result to objects, and filtering COMPACTS: `parseHumanVerificationItems` then numbered the survivors by their position in the compacted array. On a list mixing object and non-object entries the non-object rows disappeared outright and the rest were renumbered — #3850's own vanishing-row defect, reached through entry SHAPE instead of file STATUS. Base never had it: it walked the display array, so every row surfaced at its own position. Renamed to `frontmatterListEntries` and it no longer filters (the name now matches what it returns). Deciding what a non-object entry MEANS is a caller's judgement; dropping it is nobody's. Both readers now walk the DISPLAY array — one element per row, the array #2286 already gates on — and consult the parsed array only for "does this entry carry a closure field?". `parsedEntriesFor` owns that pairing and checks the two lengths agree before trusting an index; all-null is the correct degradation, since over-reporting a closed row is recoverable and closing the wrong one is not. Names stay byte-identical to base for every entry shape, including a nested sequence (`[nested]`, not `["nested"]`). Same class closed in the gaps reader: a non-object `gaps:` entry surfaced nothing at all and now surfaces as `unknown`, which is this module's documented fail-safe direction (`parseGapsItems`) on a false-negative bug. Also restores the shared fence parser round 2 accepted. The ADR-3473 rebase dropped `frontmatterRegion` and left the BOM strip and byte-0 fence rule inlined twice; `extractFrontmatter` now routes through it, so "one fence parser" is enforced rather than asserted in a comment. Minors: `frontmatterEntryToUatItem`'s dead `forcedResult` option deleted and its "shared by both readers" comment corrected — it has one call site, and the two readers differ deliberately, each mirroring its own established sibling (`parseGapsItems` vs #2286). Documented at the divergence. Tests: `B2` asserted a name substring, so it passed while the row was mis-numbered and would have passed through outright loss; it now asserts positions and count. B2b pins the reviewer's 6-entry mixed fixture verbatim, B2c the survivors' file positions across skipped rows, B2d the gaps reader. All four fail-first against the reviewed head; 332/332 green with the fix. * fix(#3850): make status authoritative, and let the two gaps readers agree Round 4 review, all five findings. Major. `isFrontmatterEntryResolved` treated a non-empty `resolution:` as closure regardless of `status:`, so `status: failed` + `resolution: "attempted retry, still failing"` vanished from the report — the silently-vanishing-item defect #3850 exists to close, reached by field combination instead of file status. Closure is now per key, because the two keys have different conventions and one rule cannot serve both: `gaps:` `status: resolved` only, byte-identical to the rule `parseGapsItems` applies to a `## Gaps` markdown section, so one authored entry cannot read closed in one reader and open in the other. `human_verification:` a bare `resolution:` still closes, since that is how verifier-written entries record it — but a readable `status:` that contradicts it wins. A single unified rule was the first draft and is wrong: it closes a frontmatter `gaps:` entry carrying `resolution:` and no `status:`, which `parseGapsItems` surfaces, and `parseVerificationGapsItems`' own docstring claims it mirrors that reader's fail-safe status handling. The contradiction guard is not a judgment call about YAML. It is the rule this codebase already applies to the same field pair: `validateResolution` (probe-core.cts) rejects a populated `resolution:` on a non-resolved status outright — "a populated payload is an authoring mistake ... Reject it so the mistake surfaces." A reporter cannot throw, so it surfaces the item. Minor 1. Direct unit tests for `frontmatterListEntries` and `flattenObjectListItem` in `tests/frontmatter.unit.test.cjs`, the file that historically co-changes with `frontmatter.cts`. They were reachable only through `uat.cts`' readers before. Minor 2. `parsedEntriesFor`'s degrade-to-all-null branch is asserted directly. Verified unreachable through content rather than assumed: both readers enter through `frontmatterRegion`, `extractFrontmatter`'s only extra argument gates a warning, and `normalizeParsedValue`'s `value.map` is 1:1. It is a drift alarm for a future edit to either parser, so the helper is exported for tests rather than left as the one unpinned branch. Minor 3. The vestigial `const skipResolved = true` and its dead conditional are gone. Minor 4. `frontmatterEntryToUatItem` no longer reads `test:`. A `gaps:` entry has no `test:` in its vocabulary — the template's entries carry truth/status/reason/artifacts/missing — so it was speculative support for a field the shape does not have, and it collided with the 1..N row numbers `parseHumanVerificationItems` assigns by array position. Not reading it makes the collision impossible; an offset would have rewritten an authored value, against `entryField`'s verbatim contract. Docs, changeset and the dispatcher docstring all stated the unconditional rule and are corrected — three prior rounds here were comment/code drift. Fail-first proven: restoring the universal rule reddens all three new unit tests and both rewritten properties. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01H3eK225hgcnEDZsnmtaP1U --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com> Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
GSD Core
Git. Ship. Done.
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A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
What is GSD Core
GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Antigravity CLI, Kimi CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.
How it works
Each milestone repeats the same five-step loop, one phase at a time:
- Discuss — capture implementation decisions before anything is planned
- Plan — research, decompose, and verify the plan fits a fresh context window
- Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
- Verify — walk through what was built; diagnose and fix before declaring done
- Ship — create the PR, archive the phase, repeat for the next one
Quickstart
npx @opengsd/gsd-core@latest
The installer prompts for your runtime (Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.
On another runtime or without Node.js? See Install on your runtime.
Once installed, start a new project or onboard an existing repo:
/gsd-new-project # greenfield project
/gsd-onboard # existing codebase
New here? Follow Your first project for a guided walkthrough from install to first shipped phase, or Onboarding an existing codebase for brownfield setup.
Documentation
What's new in 1.7.0 → docs/whats-new-1.7.0.md
Tutorials — learning by doing:
How-to guides — task-focused recipes:
Reference — authoritative facts:
Explanation — concepts and design decisions:
Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.
Why it works
Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.
Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.
Community
| Project | Platform |
|---|---|
| gsd-opencode | Original OpenCode port |
| Discord | Community support |
Star History
License
MIT License. See LICENSE for details.
Claude Code is powerful. GSD Core makes it reliable.