* test(#4112): add failing-first regression coverage for pause-work.md Context Detection Extracts and executes the shipped Context Detection bash block to prove the $(( arithmetic-context misparse (SC1102/SC1106/SC2205) as a hard syntax error, plus boundary/independence coverage for the phase/spike/sketch/ deliberation resolution the fix must preserve. * test(#4112): fix false-green regression test — assert dash/sh failure, not bash -n The prior version asserted bash -n syntax validity and wrapped bash -c execution, neither of which detects this bug: bash/zsh silently fall back to a working command-substitution reading of the ambiguous $(( construct, and bash -n never evaluates arithmetic-context content at parse time. A gsd-test run against the still-broken file passed 41594/41594 with this test in place — a false green. POSIX sh/dash does not implement that fallback and throws a real "Syntax error: Missing '))'", which is what this version asserts against. * fix(#4112): remove leaked tool-call tags corrupting the regression test file A subagent's Write introduced trailing </content>/</invoke> markup at the end of tests/pause-work-context-detection.test.cjs. gsd-test's own tests/portability-rule-disable-ban.test.cjs (which parses every test file) correctly caught this as a parse error. Strips the garbage lines; no behavioral change. * fix(#4112): drop redundant $(( subshell wrapping in pause-work.md Context Detection phase=/spike=/sketch= opened with $((, which POSIX sh/dash parses as arithmetic expansion and rejects (Syntax error: Missing '))') since the enclosed text isn't valid arithmetic. bash/zsh silently retry it as command substitution, which masked the defect there. Dropping the inner grouping parens (matching the deliberation= line already in the same block) makes the construct valid under bash, zsh, and dash alike, with identical fallback-to-empty-string behavior when nothing matches. Once the surrounding syntax parses, ShellCheck can now also analyze the inner ls -lt calls it previously couldn't see past the parse failure, newly surfacing the same pre-existing SC2012 ("use find instead of ls") suggestion already baselined for the file's other ls usage. Baseline updated to reflect the true current count; no ls-vs-find behavior change made, as that is a separate, pre-existing, out-of-scope question. * fix(#4112): verify shell discrimination instead of trusting the binary name Code review finding: falling back from dash to sh could silently produce a non-discriminating test on a host where /bin/sh is bash-compatible (e.g. macOS) — such a shell never throws on the broken construct either, so the test would pass whether the bug were present or not. resolvePosixShell now verifies the candidate actually rejects a known-ambiguous $(( snippet before using it, and skips with an explicit reason when none does. The gsd-test Linux bench (dash as /bin/sh) is unaffected either way. * fix(#4112): route regression test through process-seam, splitLines, cleanup npm run lint:ci flagged 7 violations gsd-test's node:test run doesn't check: local/no-adhoc-markdown-parsing (single fence-spanning regex), local/no-crlf-fragile-split (bare \n split), local/no-unbounded-spawn (x4, hand-rolled execFileSync with no timeout), and local/no-raw-rmsync-in-tests. Rewrites the test to route every subprocess call through tests/helpers/process-seam.cjs's runHook() (bounded by construction), tests/helpers.cjs's cleanup() for temp-dir removal, and a line-by-line fence scan using the text-lines.cts splitLines() seam, matching this repo's established extraction idiom (tests/no-hardcoded-home-gsd-tools.test.cjs). No behavioral change to what is asserted. * docs(#4112): add changeset for the pause-work Context Detection fix * docs(#4112): backfill changeset PR number (pr:0 -> pr:4140) --------- Co-authored-by: sim <sim@local>
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.