7ef9945adb
The Windows node-24 scoped-test job hit its 15-minute ceiling twice on this
branch and GitHub reported both as cancelled, which is how a job timeout
surfaces. The same job finishes in about two minutes twenty on next, across
four consecutive runs. cleanup() is the only hot-path change here.
It was doing up to seven filesystem calls per invocation: three probes of the
temp root, two more for each conventional temp dir, then an existence check and
a realpath of the target. On Windows fs.realpathSync.native opens a file handle
and Defender charges for each one, and this runs in the teardown of effectively
every test.
The root candidates are now memoized on the live os.tmpdir() value. The key
matters: two files in the suite override TMPDIR mid-run and restore it, so a
plain module-level hoist would go stale for them, while re-reading os.tmpdir()
costs an env lookup. Measured over 20,000 calls: 546ms unmemoized, 10ms
memoized.
The symlink-escape check is removed rather than optimized, because it was
guarding something that cannot happen. Verified directly on node v26.5.1:
fs.rmSync(link, {recursive: true, force: true})
link exists false
victim exists true
file exists true
rmSync unlinks a top-level symlink and leaves its target alone, and a symlink
nested inside a tree being recursively removed is also unlinked rather than
followed. The check cost two filesystem calls per teardown on the slowest
platform in the matrix and bought nothing. Its test asserted the victim
survived, which was true with or without the guard.
What closed the original defect is untouched: a target outside the known temp
roots is still refused, before the chdir and before the rmSync, with the roots
named in the message.
Refs #3057
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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, 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.