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* feat(#52): add agent_skills_security.trusted_global_roots allowlist Opt-in allowlist so a global: agent skill whose SKILL.md realpath resolves outside the default global skills base (e.g. ~/.claude/skills) is accepted when its real target lies under a user-declared trusted root. Default [] is byte-identical to prior behavior; the symlink-escape guard is preserved and simply re-applied against each declared root. - src/security.cts: loadTrustedGlobalRoots — tilde-expand (~ and ~/), reject project-relative and dangerously broad roots (filesystem/UNC root, homedir), realpath-canonicalize each root every run and drop non-existent ones. - src/init.cts: on base-check failure the guard consults the trusted roots (hoisted out of the loop); emits a stderr NOTE when a skill is accepted via a trusted root so the widened boundary is visible. - src/core.cts: thread agent_skills_security through loadConfig. - config-schema.manifest.json: allow the new key path. - docs/CONFIGURATION.md: document the option and its security model. - tests/agent-skills.test.cjs: unit + end-to-end CLI coverage (regression, feature, negative, broad-root hardening, stderr NOTE). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * docs(#52): add changeset fragment for trusted_global_roots (#754) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- 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, Gemini 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, 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, 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.