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* fix(#2351): replace hardcoded gnu timeout with portable run-with-timeout Stock macOS ships neither `timeout` nor `gtimeout` (GNU coreutils). The 10 hardcoded `timeout <n> <cmd>` calls across the workflow/agent/reference gates exited 127 ("command not found") on such hosts, and the gates — which only distinguish 0/124/other — misreported a passing build or test as a FAILURE. Fix: a single Node-based `gsd_run run-with-timeout <secs> [--] <cmd…>` verb in gsd-tools.cjs. Coreutils-independent (stock macOS AND Windows), keeps GNU `timeout`'s exit-code contract (124 timeout, passthrough, 127/126 ENOENT/EACCES, 128+signum on signal), inherits stdio so pipes/redirects work, and reaps the whole process group so a watch-mode runner cannot outlive its budget. Runs before gsd-tools' flag parsing so the wrapped argv stays opaque. Hardened per adversarial review: - On timeout, SIGKILL the group SYNCHRONOUSLY before resolving — a descendant that traps SIGTERM was otherwise orphaned holding stdout, hanging captured gates (the exact watch-mode hang the feature prevents). - Forward SIGINT/SIGTERM to the child tree instead of dying and orphaning it. - Reject blank/whitespace <seconds> (was a silent unbounded run); clamp the timer to the 32-bit setTimeout ceiling (was a spurious immediate timeout). - Lint detector: catch GNU long options / `-k5` / `$((...))`; anchor to command position so prose "timeout 30 seconds" no longer false-positives. Resolution lives once in the CLI; all 10 sites call the shared verb. A parity guard (scripts/lint-portable-timeout.cjs, wired into lint:ci) fails the build if a bare `timeout`/`gtimeout` execution reappears (the portable `command -v timeout` probe form is intentionally allowed). Also fixes the identical bug in the zh-CN checkpoints translation, updates the tests that asserted the old strings, trims a redundant phrase in gsd-verifier.md to keep it under its size hard cap, and refreshes the size baselines + golden install-parity fixtures. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * chore(#2351): add changeset (#2426) * chore: regenerate golden/size baseline after rebase onto next --------- 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, 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.