* test(#3738): antigravity global skills/agents must resolve under ~/.gemini/config Regression tests (RED first): --skills-root and gsd-tools query surfaces, install-plan dest dirs, and converter skills-path rewrite. * fix(#3738): antigravity global skills/agents install to ~/.gemini/config Antigravity's machine-local discovery scans ~/.gemini/config/{skills,agents}; the configHome (~/.gemini/antigravity) is deprecated for artifacts. Declare the ADR-1239 skills/agents 'home' override on the antigravity global layout — the same mechanism codex uses (.agents) — and divert ~/.claude/skills/ references in converted global content to ~/.gemini/config/skills/. configHome, settings, probe/migration semantics, and the local .agents layout are unchanged. * fix(#3738): retire deprecated configHome artifacts via installer migration 010 Next install converges an existing antigravity install: manifest-managed skills/gsd-*/ and agents/gsd-*.md under the configHome (a location AGY does not scan) are removed — modified files backed up first, unmanifested and non-gsd entries preserved — and now-empty containers retired. Global scope only; the local .agents surface is live. Docs + inventory updated. * fix(#3738): converter sync in bin/install.js, harness emit-root coverage, migration baseline - bin/install.js converter gains the same ~/.claude/skills → ~/.gemini/config/ rewrite as src (ADR-1508 dual copy must stay in sync). - Parity-manifest walk covers home-override emit roots (extraEmitRootsFor) so antigravity's emitted skills/agents stay differential-visible at their new install root; install-tree fixture regen confirms an unchanged key set. - skills-from-commands rule declares the antigravity converter as a runtime-scoped transform; one ack fragment covers the identity-classed workflow whose antigravity copy embeds the old skills path. - Migration 010 checksum baseline + home-override set doc updated; existing tests updated to the #3738 contract (global dest, golden parity via layout dest, integration expectations). * fix(#3738): tolerate an absent extra emit root on baseline-side measurement The base tree's installer predates the home override, so <HOME>/.gemini/config does not exist there; walk() threw ENOENT and the in-job baseline build failed. An absent extra root is the legitimate pre-override shape — skip it. * fix(#3738): review findings — manifest agents root, bare skills-path rewrite, guard comment - writeManifest resolves the agents-kind home override (_kindDestDirSafe), so the manifest records agents at their actual install root and drift detection keeps working (isolated review finding 1, major). - Converter bare forms ~/.claude/skills and $HOME/.claude/skills (no trailing slash) divert to ~/.gemini/config/skills instead of falling through to the retired configHome path (finding 2). - real-home-guard comment updated: antigravity's global agents kind is the first agents-kind home override (finding 3, doc-only). - Regression tests for both behavioral findings. * chore(#3738): changeset fragment (pr number backfilled after PR creation) * chore(#3738): backfill changeset PR number (3921) * fix(#3738): sandbox HOME in tests that install antigravity global artifacts antigravity is the first home-override runtime in the golden-parity and skills-wrapper suites (codex is not in their runtime lists), so those tests never needed HOME sandboxing — the real-home guard now (correctly) refuses their un-sandboxed global installs on CI, where HOME is the passwd home. * fix(#3738): stop the K3 sequential-sandbox env leak; sandbox L2's home-override plans K3's two back-to-back sandboxHome calls leave HOME pointing at the first sandbox once the after-hooks restore (each call saves the env as it found it, so the second saves the first's sandbox as 'original'). On the windows matrix that leaked gsd-k3-qwen-* home into the L2 property, whose antigravity/global run then (correctly) refused via the #3712 real-home guard — antigravity is the runtime that made L2's plan escape into os.homedir(). K3 now manages the env with a single restore; L2 sandboxes HOME per run, mirroring L1. * fix(#3738): L2 property's HOME sandbox must exist on disk The #3712 guard's sandbox exemption fails closed when identify(effectiveHome) is 'absent' — L2 never created its configDir, so on the windows matrix (tmpdir under the real home) the antigravity/global run refused even with HOME sandboxed. Create the per-run sandbox dir and clean it up. --------- Co-authored-by: sim <sim@local>
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.