Tom Boucher 589a9b29b0 fix(#2962): enable nullglob in for-glob shell blocks for zsh portability (#3087)
* fix(#2962): enable nullglob in for-glob shell blocks for zsh portability

Workflow shell blocks are fenced bash but execute in the user's login shell
(zsh on macOS). zsh's nomatch default aborts the WHOLE block on an unmatched
glob in a for-list (not just skipping the command), silently bypassing every
statement after it — including the verify-phase decision-coverage gate,
whose optional *-CONTEXT.md lookup used the unsafe for-list form so the
DECISION_RESULT= assignment on the next line never ran under zsh.

Fix: prepend a portable nullglob shim to every bash block containing a
for-glob loop:
  shopt -s nullglob 2>/dev/null; setopt NULL_GLOB 2>/dev/null
Each command no-ops (stderr suppressed) in the shell that doesn't recognize
it; the matching shell enables nullglob so an unmatched glob expands to
nothing and the loop body is skipped cleanly. Verified locally: both zsh and
bash now reach end-of-block (rc=0) on a no-match glob; bash matched-case
behavior unchanged.

14 blocks across 7 files: verify-phase.md (4, incl. the decision-coverage
gate), review.md, execute-phase.md, resume-project.md, complete-milestone.md,
audit-milestone.md, gsd-integration-checker.md, gsd-plan-checker.md (3).
Closes the zsh bypass of the #2770 fix.

* chore(#2962): add changeset fragment

* chore(#2962): backfill changeset PR number 3087

---------

Co-authored-by: sim <sim@local>
2026-08-05 15:42:51 -04:00

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.

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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:

  1. Discuss — capture implementation decisions before anything is planned
  2. Plan — research, decompose, and verify the plan fits a fresh context window
  3. Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
  4. Verify — walk through what was built; diagnose and fix before declaring done
  5. 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

Star History Chart

License

MIT License. See LICENSE for details.


Claude Code is powerful. GSD Core makes it reliable.

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