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* test(#2943): parity guard against the nonexistent get-library-docs tool Second context7 naming drift after #2017 (which guarded the plugin-marketplace PREFIX). #2017's guard only checks tools: frontmatter lines, not prose bodies — which is where the broken tool NAME (get-library-docs) lived. The context7 MCP server registers only resolve-library-id and query-docs; get-library-docs is a stale copy from upstream's own README. Scans the shipped prose surface (agents/, gsd-core/references|workflows/, commands/gsd/, skills/) and fails if any artifact instructs an agent to call mcp__context7__get-library-docs. Excludes tests/ (a fixture may use the name as a negative input) and CHANGELOG/RELEASE-NOTES-LEGACY (history). Fails-first: 4 offenders today (gsd-executor.md:29, research-documentation-lookup.md:5, discovery-phase.md:68 & :104). * fix(#2943): rename get-library-docs to query-docs and correct the ctx7 fallback rationale The context7 MCP server registers only resolve-library-id and query-docs (verified against upstream packages/mcp/src/index.ts); get-library-docs is a stale name copied from upstream's own README. Four shipped prose sites instructed agents to call a tool the server does not register, so every research path that loaded the canonical reference either errored, fell through to the ctx7 CLI branch, or fabricated a result. - research-documentation-lookup.md, gsd-executor.md, discovery-phase.md (x2): get-library-docs -> query-docs, params context7CompatibleLibraryId/topic -> libraryId/query (the registered contract). - Same files' ctx7 CLI fallback rationale: the cited cause (anthropics/claude-code#13898 'strips MCP tools from agents with a tools: frontmatter restriction') was wrong on two counts — #13898 is closed and was never about tools: frontmatter. Rewritten to describe the real mechanism (custom subagents cannot see project-scoped .mcp.json; they only inherit user-scoped ~/.claude/mcp.json). The fallback itself is kept. - discovery-phase.md 'mode: code/info' dropped — query-docs takes libraryId + query only; the code-vs-concepts intent is now expressed via the query text. resolve-library-id is unchanged (still registered upstream). CHANGELOG and RELEASE-NOTES-LEGACY citations are historical record, left as-is. * chore(#2943): add changeset fragment (pr:0 placeholder) * test(#2943): widen parity-guard scan surface to docs/ (isolated-review finding) The isolated adversarial review flagged that SCAN_DIRS omitted docs/, which ships docs/AGENTS.md — agent-consumed prose carrying 8 mcp__context7__* refs. No false negative today (it uses only the wildcard), but a future banned-name addition there would slip through, recreating the exact drift this guard exists to prevent. Add docs/ to the scan surface, with an EXCLUDED_FILES set for historical record (docs/RELEASE-NOTES-LEGACY.md, CHANGELOG.md) that must not be rewritten to satisfy the guard. * fix(#2943): update shifted PROSE_ALLOWLIST line + acknowledge gsd-executor.md growth The gsd-test gate caught two real consequences of the rationale rewrite in agents/gsd-executor.md (the +2-line corrected mechanism description shifted line numbers below it): 1. tests/no-bare-gsd-tools-command-position.test.cjs: the legitimate 'gsd-tools query commit' descriptive mention moved from line 791 -> 793. Update the PROSE_ALLOWLIST entry to the new line (the mention is unchanged, just relocated by my edit above it). Without this the gate reports both a stale allowlist entry (791) and a new offender (793) for the same mention. 2. tests/emitted-drift-acks/2943-context7-tool-name.json: gsd-executor.md grew 95 bytes (the accurate mechanism rationale is longer than the wrong one-line #13898 attribution it replaces). Acknowledge the growth with the reason. Both are mandated by the gate, not optional. The rename itself (get-library-docs -> query-docs) is byte-neutral-ish; only the rationale rewrite grew the file. * chore(#2943): backfill changeset PR number 2963 --------- 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.