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* test(#2649): failing-first — diagnose-issues + execute-plan must run base-check before worktree dispatch * fix(#2649): diagnose-issues + execute-plan run worktree.base-check before dispatch diagnose-issues.md spawn_agents and execute-plan.md Pattern A spawned worktree-isolated subagents (gsd-debugger / gsd-executor) without the pre-dispatch worktree.base-check gate that execute-phase (#683/#1369) and quick (#1941) already run. Claude Code's isolation="worktree" forks from origin/HEAD, not live local HEAD; without the gate, the documented GSD steady state (commit every step locally, push only on request) hits the verify-only worktree_branch_check guard's exit-42 halt mid-investigation with no auto-degrade. Mirror the quick.md #1941 pattern: before dispatch, run `gsd_run query worktree.base-check --pick shouldDegrade`; if true, print its message + a #2649 warning to stderr and set USE_WORKTREES=false (sequential main-tree dispatch). The verify-only guard stays as a backstop in both cases. Per the triage and #2649 acceptance criterion 5, execute-plan.md's Pattern A (identified as a second site with the identical gap) is fixed in the SAME change — same bug class, same one-line gate, two workflow files — rather than filed as a separate follow-up. * fix(#2649): ack the diagnose-issues + execute-plan growth (per-PR fragment) The two workflow files grew vs next (diagnose-issues.md +1381, execute-plan.md +905) adding the #2649 base-check gate. emitted-attribution requires an ack; this is a per-PR fragment under tests/emitted-drift-acks/ (#2914 mechanism, replacing the legacy shared emitted-drift-ack.json). * test(#2649): tighten base-check ordering assertion + guard backstop survival Address code-review minors: - the ordering assertion was a loose disjunction that passed even if the base-check moved AFTER the dispatch; tighten to assert base-check < Agent() (the real invariant). - add a test that the verify-only <worktree_branch_check> backstop remains embedded in the Agent() prompt (acceptance criterion 4 — the base-check is a pre-dispatch degrade, the guard is a post-fork fail-closed backstop; both layers must survive). * changeset(#2649): diagnose-issues + execute-plan auto-degrade on stale worktree base * changeset(#2649): backfill PR number 2955 --------- Co-authored-by: sim <sim@users.noreply.github.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.