* feat(#772): adopt stable Codex hook events + commandWindows for Windows parity Register three new stable Codex hook events (SubagentStart, Stop, PostToolUse) wired to gsd-context-monitor.js so Codex installs get the same context-headroom tracking at subagent and session boundaries that Claude/Qwen already have. Add commandWindows field to the SessionStart hook entry on Windows so Codex uses the .cmd shim directly (Git Bash/MSYS cannot POSIX-exec node.exe). commandWindows is only emitted on win32; POSIX is unchanged. Refactor reconcileCodexHooksJsonSessionStart into a generic reconcileCodexHooksJsonEvent so any event name can be reconciled with the same dedup/preserve-user-entries logic. Add gsd-context-monitor.js and .cmd to MANAGED_HOOK_COMMAND_BASENAMES _BY_SURFACE so idempotent re-runs de-duplicate entries correctly. 30 new tests covering: export surface, event registration for each of the three events, commandWindows parity (POSIX vs win32), idempotency, uninstall, and user-entry preservation. Closes #772 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix(#772): windows path normalization + docs-lint - Normalize scriptPath backslashes to forward slashes in ensureCodexHooksJsonEvent and ensureCodexHooksJsonSessionStart so that isManagedHookCommand can match stored commands against configDir on Windows CI runners. path.resolve returns backslash paths on Windows, but when platform is not 'win32' (e.g. platform:'linux' in tests), projectManagedHookCommand skips normalization — producing a mismatch that breaks idempotency deduplication (the same hook entry appended twice on re-register). Forward-slash paths are always valid in both Node.js and Codex, so the normalization is safe for all platforms. - Fix changeset pr: 0 → 827 to resolve fail_malformed_fragment. - Add Codex hook coverage table to docs/how-to/install-on-your-runtime.md documenting the SubagentStart/Stop/PostToolUse events + commandWindows Windows-parity field added by this enhancement. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.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, Gemini 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, Gemini 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, Gemini 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 your first project:
/gsd-new-project
New here? Follow Your first project for a guided walkthrough from install to first shipped phase.
Documentation
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.