* fix(#4776): resolve the artifact-exists prompt under --auto /gsd-ui-phase <phase> --auto stopped at 'UI-SPEC.md already exists for Phase {N}. What would you like to do?' whenever the file was on disk — which is most often after an earlier run wrote the contract as a draft and ended before its checker ran, exactly the state a re-run exists to verify. Step 4 had no --auto arm; step 9.5 in the same file has had one since it was added, which is how the drift went unnoticed. Step 4 now auto-selects Skip: the existing UI-SPEC is left untouched and the run proceeds to the checker. Skip is the only non-destructive choice — Update re-runs the researcher, which rewrites the whole contract and drops answers a person already recorded in it, and View exits without verifying anything. spec-phase.md's artifact-exists arm auto-selected 'Update it', which is the same defect with the opposite sign: an unattended run regenerating a spec nobody is watching. Per the decision recorded on #4776 — an unattended run reuses an existing artifact rather than regenerating it — it now auto-selects Skip and leaves the spec unchanged. The max-revision-iterations escalation (Force approve / Edit manually / Abandon) is deliberately untouched and pinned by a test: accepting blocking findings is a decision a person makes. Closes #4776 * chore(#4776): add changeset fragment Emitted-Drift-Ack-Growth: ui-phase.md — --auto arm added to the existing-UI-SPEC branch (#4776) Emitted-Drift-Ack-Growth: spec-phase.md — --auto arm reworded to reuse the existing SPEC (#4776) * fix(#4776): extend the reuse-as-is --auto fix to the 3 sibling files The PR's original scope claim -- that ai-integration-phase.md, eval-review.md and ui-review.md were "scoped by triage to their own issues" -- was false; no such issues existed, and it contradicted #4776's own most recent (2026-09-16) triage comment, which explicitly widened the fix to require all 5 files under one recommended fix. Applies the same reuse-as-is pattern: ai-integration-phase.md mirrors ui-phase.md's 3-way Update/View/Skip shape (auto-selects Skip); eval-review.md and ui-review.md have only Re-audit/View (auto-selects View, the only non-regenerating choice). None of the three had any prior --auto handling at all -- each has exactly one AskUserQuestion call site total, and it is the one this fix resolves, so an --auto run through any of them no longer stalls anywhere. Emitted-Drift-Ack-Growth: ai-integration-phase.md — the --auto arm reusing an existing AI-SPEC is the deliverable (#4776) Emitted-Drift-Ack-Growth: eval-review.md — the --auto arm reusing an existing EVAL-REVIEW is the deliverable (#4776) Emitted-Drift-Ack-Growth: ui-review.md — the --auto arm reusing an existing UI-REVIEW is the deliverable (#4776) --------- 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.