Post-merge coverage-audit follow-ups to epic #1702 (found by an independent gpt-5.5/high audit + adr-phase-coverage cross-reference). None are CRITICAL — the 9-rule enforcement shipped and works; these close completeness/integrity gaps between ADR-1703's promises and the as-built reality. 1. drift-guard bin/install.js scope (ADR-1703 L114-119): the drift guard covered src/runtime-homes.cts only; the ADR named bin/install.js too. Phase 6's glob expansion made bin/install.js a covered surface. Extended tests/portability-vocab-drift.test.cjs with TWO sound checks: (a) any bin/install.js top-level function that directly returns path.*() must be in PATH_RETURNING_FNS (tight, 0 FP — the body-contains heuristic is unsound here, ~33 FPs); (b) a curated two-way existence lock on the installer path helpers (catches a rename making a vocab entry stale; keeps the curation in sync with PATH_RETURNING_FNS). The residual new-resolver boundary (temp-var shape) is documented. 2. ci-test-scope wiring (the Phase 6 portability selection rule was ineffective): eslint-rules/ was not in the product-code prefix list, so an eslint-rules-only change set code_changed=false and CLEARED the matched tests (reproduced: targeted_tests=[]). Added eslint-rules/ to the prefix list and the P1-P4 RuleTester suites to the selection rule (it previously listed only P5/P6). Verified: code_changed=true, 11 tests selected. 3. ADR-1703 acceptance note amended to record the two further as-built divergences: the disable-ban shipped as an out-of-band test (not the specified local/no-portability-disable meta-rule — the test runs outside ESLint so it cannot be self-disabled, at least as strong); and the drift-guard bin/install.js scope resolution above. Epic #1702 all eight phase boxes now checked. No runtime change; no-changelog (contributor tooling + docs). Closes #1749 Co-authored-by: review-bot <review-bot@gsd>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Gemini 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, Gemini 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, Gemini 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 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.