* feat(#4668): add StateWriteIntent type surface and opaque-transform guard recognition (ADR-4629 C1) Child C1 of epic #4629 — migration-order step (1) of ADR-4629: the guard/type scaffolding, with NO behavior change and no caller migrated. 1. StateWriteIntent (src/state-transition.cts) extends StateTransaction with the ADR-4629 section 8.1 concepts: field/section assertions marked required vs best-effort, plus a declared mutation scope (narrow | broad). Frozen like its base. createStateWriteIntent builds one from an existing transaction. Nothing in production constructs it yet — section 8.1's caller-side rule is Required in Phase 2; C2 (the verifying executor) and C3+ (caller migration) consume it. 2. findOpaqueStateTransforms (scripts/lint-state-write-path-drift.cjs) recognizes a residual readModifyWriteStateMd(path, (content) => ...) write whose transform is an inline anonymous arrow/function — the opaque shape section 8.1 replaces with a declared StateWriteIntent. readModifyWriteStateMd goes THROUGH the seam (it is not a raw-write bypass, Axis 2's concern), but its opaque body transform is neither verified (section 8.2) nor bounded (section 8.3). This ships recognition as a CAPABILITY: exported and unit-tested (positive control on a seeded fixture) but DELIBERATELY NOT wired into collect()'s failing scan. Wiring it now would turn the ~16 residual callers red at once, and ADR-3473 section 8.6 retired the ratchet that would otherwise absorb them. C2 wires it terminal as the verifying executor lands and callers migrate under ADR-3408 section 6 phasing. No behavior change: the guard is green on the tree (detection not wired), every state verb's output is unchanged, and the relevant suites (1763 tests) plus lint:ci pass. Regression tests are failing-first: positive/negative controls for the guard capability and a shape test for the type, plus a pin that collect() has no opaque-transform findings (C1 must not enforce; that is C2). Closes #4668 * chore(#4668): backfill changeset pr field to the real PR number (#4676) pr: 0 is rejected by parseFragment as invalid_pr (it is not a valid placeholder); the fragment must carry the real PR number, which fixes both changeset-lint and docs-lint (fail_invalid_fragment / fail_malformed_fragment). --------- Co-authored-by: Tom Boucher <trekkie@nomorestars.com>
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.