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* feat(#3274): make reviewer-lane timeout configurable via timeoutConfigKey Add an optional `timeoutConfigKey` field to the reviewer lane descriptor, resolved in `resolveLanePlan` at invocation time and falling back to the frozen `timeoutFloorMs` when unset or invalid, in the same spirit as the existing `promptBudgetKey`/`modelConfigKey` fields. All 12 shipped lanes declare `review.timeouts.<slug>` on both surfaces (the descriptor and their capability.json manifest), validated by capability-validator.cjs. For the antigravity lane, the native `agy --print-timeout` flag — previously a second hardcoded literal (`540s`) independent of the outer cap — is now derived from the same resolved outer timeout in `antigravityArgv`, preserving the existing 60-second buffer relationship (ADR-2782 D6: the outer bound is declared data, the inner one is handler-owned). The antigravity default timeoutFloorMs stays at 600s per the maintainer's disposition; users raise it through the new config key instead. * docs(#3274): document review.timeouts.* and extract resolveTimeoutMs helper Address code-review findings on the timeoutConfigKey change: extract the inline timeout-resolution logic into a named, exported, directly-tested resolveTimeoutMs helper (matching the file's existing configString/ normalizeHost convention); document the new review.timeouts.* federated config keys in docs/CONFIGURATION.md, docs/reference/capability-manifest.md, and docs/how-to/ship-a-reviewer-lane.md; add the changeset fragment. * fix(#3274): resolve native antigravity timeout in resolveLanePlan, not the runner gsd-test caught two design mistakes in the prior commits: 1. SpawnPlan.argv is documented and tested as fully resolved by resolveLanePlan (model/effort/output/prompt already folded in) — leaving the antigravity '{{nativeTimeout}}' marker unresolved until the runner's antigravityArgv violated that contract and broke tests that read plan.argv directly (tests/antigravity-reviewer.test.cjs, tests/review-default-reviewers-workflow.test.cjs). Fix: '{{nativeTimeout}}' is now a fifth ARGV_PLACEHOLDER member, resolved by resolveLanePlan itself via the new nativeTimeoutToken() helper, exactly like the other four. antigravityArgv reverts to its pre-#3274 four-argument form. Also missed updating capabilities/antigravity/capability.json's invoke.args to match the descriptor, which broke the manifest/descriptor parity test. 2. tests/reviewer-config-federation.test.cjs enforces a deliberate, narrow invariant (#3691 narrows #2797): qwen, cursor, and coderabbit — the three lanes with neither a model flag nor a host — may own no config key beyond their own prompt-budget key. Adding review.timeouts.<slug> to all 12 lanes violated it. Fix: those three keep timeoutConfigKey: null and own no review.timeouts.* key, matching their existing modelConfigKey: null. The other 9 lanes are unaffected. * chore(#3274): backfill changeset PR number (pr:0 -> 4083) --------- 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.