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* fix: require fresh phase verification before transition * no-mistakes(review): Fix canonical verification closeout gates * no-mistakes(review): Fix verify-work frontmatter promotion command * no-mistakes(review): Fix stale verification gates * no-mistakes(review): Fix canonical verification routing gates * no-mistakes(review): Fix verification dependency and runtime routing gates * no-mistakes(review): Block stale verification bypasses * fix: handle large init manager outputs in verification workflows * chore: update changeset pr number * fix(verify-work): use fresh verification.status for stale gate The stale check after UAT used phase_completion.verification_status from session-start INIT while human_needed promotion already queried fresh verification.status. Align the stale gate with the canonical query so mid-session verification refresh is not ignored. * fix(init): skip roadmap-checked phases when selecting next_phase Roadmap-only phases without a disk directory were still promoted to next_phase when their checkbox was already checked. Exclude checkboxComplete phases so progress routing does not point at work the roadmap already marks done. * fix: gaps_found not overridden by stale, transition uses canonical verification - verification.cts: check gaps_found before stale so gap-closure routing is not masked by a newer summary mtime - phase.cts: remove redundant findStaleVerificationSummary — readVerificationStatus already handles stale detection - transition.md: replace raw grep on file content with verification.status query to avoid false-positive blocks from body text matching * ci: retrigger tests after rebase * fix(transition): replace gsd_run advisory check with awk frontmatter extraction The runtime launcher is not defined until the update_roadmap_and_state step bash block (~line 165). The early verify_completion block used gsd_run to query verification.status, which violated the runtime-launcher-parity test: 'preamble appears AFTER the first gsd_run reference'. Replace the gsd_run call with an awk-based frontmatter extractor that reads only the status: field between the two --- fences. This avoids both the preamble-ordering constraint and the original false-positive grep bug where body text like 'previous_status: gaps_found' would match a full-text regex. The phase.complete gate at update_roadmap_and_state is the canonical enforcement point; this early check is advisory only. Also update workflow-size-baseline.json for the updated transition.md size. Fixes: runtime-launcher-parity test (B) Co-authored-by: Codesmith <codesmith-bot@users.noreply.github.com> * fix: re-check verification under planning lock in phase complete Move readVerificationStatus into withPlanningLock so stale verification cannot slip through when a SUMMARY.md is written between the gate and the roadmap/state mutation. Return the blocked status from the lock callback and emit the error after release to avoid leaving .lock behind. * fix(transition): gate on canonical verification.status including stale Replace awk frontmatter read with verification.status query so transition blocks when summaries are newer than VERIFICATION.md, matching phase.complete and other workflows (autonomous, progress, verify-work). * Fix workflow verification gates for yolo transition and stale routing Require VERIFY_STATUS passed before yolo/interactive transition advance. Route stale verification recovery to verify-work, matching canonical projection. * fix(transition): use verification.status query for stale-aware advisory check The awk-based check read raw frontmatter status: passed, which misses the stale case where summaries are newer than the VERIFICATION.md file even though the frontmatter still says passed. The stale status is computed from file modification times, not stored in frontmatter. Move the preamble to the verify_completion bash block (the first block with a gsd_run call) so gsd_run query verification.status can be used for the advisory check. This gives the full readVerificationStatus logic including mtime-based staleness detection, matching the enforcement gate at phase.complete. Capture full JSON (VERIFY_JSON) so next_action can be included in the advisory output alongside the status. Also update workflow-size-baseline.json for the updated transition.md size. Co-authored-by: Codesmith <codesmith-bot@users.noreply.github.com> * ci: trigger test matrix for 525b946 Co-authored-by: Codesmith <codesmith-bot@users.noreply.github.com> * fix(transition): restore awk frontmatter extraction for pre-shim verification check The gsd_run launcher shim is not defined until line ~163 of transition.md, so the verification debt check at line ~80 cannot use gsd_run. Restore the awk-based frontmatter extraction that correctly reads status without needing the runtime, and restore the shim at its proper location before phase.complete. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(#1522): clarify transition verification gate wording * fix(#1522): update transition workflow size baseline * fix(#1522): update workflow-size-baseline after rebase onto next Co-authored-by: Codesmith <codesmith-bot@users.noreply.github.com> * fix(#1522): guard findStaleVerificationSummary FS calls + thread opts.fs seam (review) Address review blocker B1 on #1548: findStaleVerificationSummary ran fs.readdirSync and two fs.statSync calls unguarded between readVerificationStatus's try/catch sections, so a TOCTOU race (a SUMMARY listed by scanPhasePlans then removed before statSync) or any FS error threw uncaught into callers NOT under the planning lock (init.manager / init.progress / uat-predicate). Wrap the body in try/catch degrading to 'not stale', and thread the injectable opts.fs seam (add statSync to FsLike, pass fsImpl from the caller) for parity with readVerificationStatus's no-throw contract and testability. Also adds the Verification Module glossary entry to CONTEXT.md (review B3). --------- Co-authored-by: Cursor Agent <cursoragent@cursor.com> Co-authored-by: Codesmith <codesmith-bot@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Gemini 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, Gemini 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, Gemini 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 your first project:
/gsd-new-project
New here? Follow Your first project for a guided walkthrough from install to first shipped phase.
Documentation
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.