* test(#2647): failing-first — fixer worktree path must be repo-relative not /tmp * fix(#2647): place code-fixer worktree under .claude/worktrees/, not /tmp The gsd-code-fixer agent hand-rolled its worktree at a hardcoded `/tmp/sv-${padded_phase}-reviewfix-XXXXXX` mktemp path. On Windows/Git Bash that landed OUTSIDE the project tree — outside the agent session's permission allowlist, so every Read inside the worktree prompted (~25/run) — and mktemp's MAX_PATH-avoidance substitute produced an un-removable `C:/mvwtNN` path. Place the worktree repo-relative under `.claude/worktrees/` (the same dir the harness-managed executor worktrees use: gitignored via `.claude/`, inside the session's permission scope), with a $$-PID + epoch suffix for concurrency uniqueness (replacing mktemp's XXXXXX). $main_repo is resolved the same way the cleanup tail already resolves it. Three sites updated: setup_worktree bash, concrete-steps prose, critical_rules. The #2990 `-b "$reviewfix_branch"` invariant is preserved (the folded test asserts it). Failing-first regression added to the #2990 suite in tests/agent-frontmatter.test.cjs. * test(#2647): update #2686 path assertion to expect .claude/worktrees/, not /tmp The #2686 regression test encoded the worktree location as a hardcoded `/tmp/sv-` path (matching sibling GSD agents at the time). #2647 showed that breaks Windows/Git Bash (worktree outside the project tree → permission prompts; mktemp MAX_PATH substitute un-removable). Update the #2686 path assertion to require the repo-relative `.claude/worktrees/` location and forbid `/tmp/sv-`. The #2686 isolation + cleanup assertions are unchanged. * fix(#2647): word-boundary wt= parse + ack the fixer growth vs next Two follow-ups to the #2647 GREEN run: - parseWtAssignments matched `prior_wt=` (no word boundary), polluting the set and tripping the repo-relative + concurrency-unique assertions. Anchor on (?:^|\s)wt= so only the real worktree-path assignment is captured. - emitted-attribution: gsd-code-fixer.md grew 1875 bytes vs origin/next. Update the emitted-drift-ack entry to attribute the #2647 worktree-path change (supersedes the prior #2825 attribution, whose growth is already in next). * fix(#2647): address review — validate padded_phase at the sink + tighten test Code-review + security-review both APPROVED with one actionable minor: padded_phase is interpolated into a worktree PATH and a git BRANCH NAME, but was only validated by the orchestrator (code-review-fix.md), not at the agent sink. The agent prompt is a literal bash contract any caller can spawn, so add a `[[ =~ ^[0-9]+(\.[0-9]+)?$ ]]` self-defense check rejecting traversal/shell metachars (defense-in-depth; not a present vuln — the only caller validates). Also tighten the concurrency-uniqueness test to require BOTH $$ AND $(date +%s) (either-alone was too lax per review). Update the emitted-drift-ack reason to cover the added validation growth. * changeset(#2647): code-fixer worktree under .claude/worktrees not /tmp * changeset(#2647): backfill PR number 2942 * chore(#2938): regenerate stale docs/CONTEXT-INDEX.json on next #2938 (#2928) updated the CONTEXT.md RULESET prose for the new per-PR emitted-drift-ack fragment mechanism (#2914) but shipped a CONTEXT-INDEX.json generated from the OLD prose. lint:generated-sync fails on every PR that rebases onto next after #2938 (the regen produces a 3-line diff bringing three RULESET entries — AGENT_SIZE_BUDGET, EMITTED_ATTRIBUTION, WORKFLOW_SIZE_BUDGET — in sync with the prose already on next). Mechanical regen via `node scripts/gen-context-index.cjs --write`; idempotent; surfaced by the #2647 rebase. No behavioral change. --------- 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.