00c859fae5
* fix(#2834): write defaults.json before agent TOML generation on clean Codex install Extracted writeNonClaudeDefaults(runtime) and called it BEFORE installCodexConfig so the runtime-aware model resolver has resolve_model_ids=omit + runtime=codex in ~/.gsd/defaults.json before agent TOMLs are generated. Pre-fix, a clean first Codex install generated TOMLs with no model fields (the resolver didn't know the runtime); a second run fixed it. The original inline defaults-write block (which ran AFTER agent generation) is replaced by the earlier function call (idempotent). * chore(#2834): changeset fragment * fix+test(#2834): acknowledge codex TOML drift (emitted-attribution) + fix test comment window The emitted-attribution gate flags 19 codex agent TOMLs that now carry model-routing fields (the fix's correct effect) but can't link them to a .md or src/ change (the fix is in bin/install.js ordering). Acknowledge the drift in emitted-drift-ack.json. Fix the test's comment-detection window (300 chars to capture the #2834 rationale). * fix(#2834): ack remaining 15 codex TOML drift paths * chore(#2834): backfill changeset PR number (2900) * chore(#2834): ack code-review.md growth from concurrent merge (rebase pickup) * fix(#2834): remove stale code-review.md ack (emitted-attribution failure) CI failed: 'differential attribution over the real tree' — the code-review.md ack added in 6e0b4b3b8 ('ack code-review.md growth from concurrent merge') is STALE: this PR's diff does not touch code-review.md (only bin/install.js + tests + changeset), so the ack explains growth that isn't here. The base already absorbed the concurrent code-review.md growth; the ack is inert here and the gate flags it as stale. Remove it. --------- Co-authored-by: Test <test@example.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.