* test(#2069): add fail-first regression for global-defaults dropped keys Adds four failing-first regression cases to tests/defaults-json-fallback.test.cjs: - model_policy forwarded from ~/.gsd/defaults.json - model_profile_overrides forwarded from ~/.gsd/defaults.json - runtime forwarded from ~/.gsd/defaults.json - parity: model_policy survives identically whether it lives in the global defaults or in a project's .planning/config.json All four fail on unfixed code (Branch D of loadConfigResolved builds _globalBaseCfg from a whitelist that omits these three keys). The project-config path at config-loader.cts:602-604 already forwards them, so the global path should too. * fix(#2069): forward model_policy, model_profile_overrides, runtime from global defaults The _globalBaseCfg whitelist in Branch D of loadConfigResolved previously omitted three keys that the project-config path forwards parsed['…']: - runtime - model_profile_overrides - model_policy so ~/.gsd/defaults.json silently dropped them. A machine-wide model policy (or runtime / profile overrides) was honored inside a project (where .planning/config.json carries it) but ignored for out-of-project runs — resolve-model fell back to the profile default with no warning. Adds the three entries to _globalBaseCfg in the same (globalDefaults['…']) || null shape as the sibling keys and the project-config path, so global defaults honor them identically. Regression tests in the prior commit (#2069 fail-first) demonstrate the fix on the same suite that previously failed. * test(#2069): extend parity test to all three previously-dropped keys Code review (subagent) flagged that the parity test only asserted model_policy shape-parity between global-defaults and project-config paths. A future regression breaking just runtime or just model_profile_overrides shape (e.g. someone changing parsed['runtime'] to ?? null in the project path) would slip a single-key test. Extends the parity test to assert deepStrictEqual / strictEqual across all three keys: model_policy, model_profile_overrides, runtime. Same two-dir setup, three cheap assertions. * chore(changeset): backfill pr:2442 in .changeset/sturdy-seals-fly.md
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.