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* test(#2565): add failing regression for generate-claude-profile runtime target cmdGenerateClaudeProfile hardcodes .claude/CLAUDE.md (project + global), ignoring the runtime policy that #3163 wired into the sibling cmdGenerateClaudeMd handler. These tests pin the parity contract for project scope (codex -> AGENTS.md, env precedence, --output override, claude preserved), global scope (codex -> <CODEX_HOME>/AGENTS.md, claude preserved), and a divergence guard asserting both handlers agree on the project instruction path for the same runtime. Failing-first: all seven tests reproduce the bug on unmodified next. * fix(#2565): route generate-claude-profile target through runtime policy cmdGenerateClaudeProfile hardcoded .claude/CLAUDE.md for both project and global scope, ignoring the runtime-aware resolution that #3163 wired into the sibling cmdGenerateClaudeMd handler. The #3163 fix diverged when it did not propagate here, so /gsd-profile-user kept writing Claude instruction files on Codex installs (and other AGENTS-native runtimes: opencode, kilo, kimi, antigravity, copilot). Fix mirrors the proven #3163 pattern using existing policy primitives: - Project scope resolves through getProjectInstructionFile(runtime) and a non-claude runtime wins over a stale claude_md_path (AGENTS-native projects must never write to CLAUDE.md). - Global scope derives ~/.<config-home>/<instruction-basename> via getGlobalConfigDir + basename(getProjectInstructionFile), so codex lands at ~/.codex/AGENTS.md. Claude global is preserved byte-for-byte (no env-var drift beyond the prior hardcoded path). - GSD_RUNTIME env var takes precedence over config.runtime. A parity test asserts both handlers agree on the project instruction path for the same runtime, guarding against future re-divergence (CLAUDE.md 'Generative Fix Divergence' rule). * docs(#2565): add changeset fragment for generate-claude-profile runtime fix * docs(#2565): remove parenthetical product description from changeset The product-name purity guard (#1777) flags 'ProductName (description)' patterns in changeset fragments because the prose renders verbatim into CHANGELOG.md at release time. The original fragment had 'Codex (and other AGENTS-native runtimes)' in the bold header, which matched the banned pattern. Reworded to drop the parenthetical; also trimmed the per-runtime mapping (belongs in code comments, not changelog prose). * docs(#2565): backfill PR number in changeset fragment * test(#2565): isolate os.homedir() cross-platform in claude global test The 'global scope: claude runtime writes to ~/.claude/CLAUDE.md' test set only HOME to redirect os.homedir() at a tmpDir. On Windows, Node's os.homedir() reads USERPROFILE (not HOME), so the child process still resolved the real user profile and the path assertion failed (#2659 CI). Set USERPROFILE alongside HOME so the isolation holds on both POSIX and Windows. Production code is unchanged — it uses os.homedir() exactly as the prior hardcoded path did.
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.