* test(#2329): fail-first tests for opencode commands/ (plural) command dir Red phase, empirically probed: global/local install lands in command/ (singular) with 71 gsd-*.md files and no commands/; the manifest records 71 keys under command/ and zero under commands/; all four declaring sites report 'command'. Migration coverage is black-box (two sequential install runs against one configDir) so it holds regardless of how the fix implements cleanup. The Kilo guard passes today by design — a forward-looking no-collateral check. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * fix(#2329): write opencode commands to commands/ (plural), migrate legacy command/ OpenCode discovers slash commands from commands/ (plural); the installer wrote them to command/ (singular), so none of the ~71 /gsd-* commands appeared in the TUI. Five sites declared the directory and all had to agree: - capabilities/opencode/capability.json: both artifactLayout destSubpath entries (global + local) and hostBehaviors.flatCommandDir - bin/install.js: the manifest prefix was a SEPARATE hardcoded 'command/' literal, so the manifest would have diverged from the descriptor even after a rename. It now derives from _hostBehaviors(runtime).flatCommandDir. - src/install-engine.cts installOpencodeFamilyArtifacts: the actual write target, which bypasses resolveRuntimeArtifactLayout via combinedFamilyInstall. This was a fifth site the issue did not list — without it the descriptor change alone would not have moved a single file. Migration: an upgrade over a pre-fix install removes only manifest-proven GSD-managed files from the legacy command/ dir and rmdirs it once empty. Unmanifested user files are preserved, never deleted. Kilo shares the opencode family install path and is explicitly unaffected — pinned by a no-collateral test. Note on the tests: the migration cases originally built their legacy fixture by running the installer and relying on it to produce command/ — i.e. they depended on the bug to set up the fixture, and became unsatisfiable the moment it was fixed (block 1 requires command/ to be absent after a fresh install). They now fabricate the legacy layout explicitly, including rewriting the manifest keys to the command/ prefix — which is load-bearing, since the migration only removes manifest-proven files and an unrewritten fixture would silently no-op and pass even against a broken migration. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * test(#2329): regenerate opencode install golden after rebase onto next The golden conflicted on rebase because #2322 also regenerated it. Resolved by regenerating from the merged source rather than hand-merging a generated file; the only delta is the 71 command/gsd-*.md -> commands/gsd-*.md key renames. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * test(#2329): update stale tests that pinned opencode's singular command/ dir Seven tests encoded the old contract (opencode: command/gsd-help.md exists, the descriptor's flatCommandDir, the install-integration contract, and the resolveRuntimeArtifactLayout golden). They passed in the red phase precisely because they pinned the buggy singular dir; the fix intentionally changes that contract, so these are stale-test corrections, not regressions. Kilo shares the opencode family install path and is deliberately NOT changing — it stays on command/ (singular). The shared opencode/kilo test is now split via an explicit per-runtime dir map so the two cannot be conflated, and Kilo's own layout test is untouched. tests/opencode-command-dir-plural.test.cjs independently pins Kilo unchanged end-to-end. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2329): changeset for opencode commands/ dir fix Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2329): backfill PR number 2354 into changeset Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2329): correct the changeset — do not assert opencode ignores command/ The changeset repeated the issue's stated mechanism ("OpenCode discovers them from commands/ ... a clean install produced no usable commands in the TUI at all"). OpenCode's source contradicts that: packages/core/src/v1/config/command.ts globs {command,commands}/**/*.md, so BOTH names resolve, and its own skill doc still calls .opencode/command/ typical. Shipping that claim as a release note would document a mechanism that does not exist. The change is still right, for the stronger reason: OpenCode's config docs list plural as the convention and singular as backwards compatibility, so GSD was shipping on the alias the vendor may withdraw. Reworded to describe it as the alignment it is, decided on OpenCode's source and docs rather than on bug reports in either repo. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * fix(#2329): baseline opencode's commands/ surface — closes a data-loss path this PR opened Not a bookkeeping gap. Moving opencode's command dir to commands/ moved the install destination to a surface the first-time baseline scan does not cover: 000-first-time-baseline's RUNTIME_SURFACES.opencode lists ['gsd-core','command', 'skills','agents'] — no 'commands'. installOpencodeFamilyCommands unconditionally unlinks every gsd-*.md under its destination before writing the fresh set (install-engine.cts:870-873), with zero manifest or migration involvement. The only thing that protects a pre-existing file is assertInstallerMigrationsUnblocked, which runs before materialization and halts when the baseline scan flags an unknown file at a KNOWN surface. Probed: a pre-existing commands/gsd-plan.md is silently destroyed (install exits 0). The identical file under the legacy, already-baselined command/ surface correctly halts the install with "installer migration blocked pending user choice". So this PR would have traded a protected surface for an unprotected one. Fixed with a NEW fix-forward migration rather than editing 000, per docs/installer-migrations.md:131-134 — an applied migration never re-runs, so editing 000 would only protect fresh installs and leave every existing machine exposed. A new id runs for both populations and drifts no shipped checksum; adding its entry to EXPECTED_CHECKSUMS is the case that test explicitly sanctions. All five pre-existing shipped checksums verified byte-identical. Kilo is excluded by the migration's runtimes filter and keeps command/. This was previously deferred as a PR-body note claiming "low impact — nothing else acts on baseline-scan misses". That claim was never probed and was wrong. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2329): drop the parenthetical product description from the changeset The product-name purity guard (#1777) rejects "Kilo (which still uses command/)" — fragment prose renders verbatim into CHANGELOG.md, so a product name must not carry a parenthetical. Reworded to a plain sentence; the meaning is unchanged. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA --------- Co-authored-by: Claude Opus 4.8 (1M context) <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.