628648d63a
* fix(#2931): preserve protected regions and cap emitted per-runtime bytes Route every runtime brand swap through applyClaudeCodeBrandSwap so "Claude Code" survives verbatim inside <runtime_compatibility> regions (#2284b). The fix existed only in bin/install.js's local copies; the src/*.cts exports still used a naive replace, so binding install.js to the single source -- as this phase does for the Windsurf family -- would have silently regressed those runtimes. A table-driven parity guard now covers all nine brand-swapping converters. De-duplicate the Windsurf converter family: delete the six local copies in bin/install.js and bind the four exported ones by reference, guarded by reference-identity assertions (the ADR-1508/#1675 pattern). The two unexported helpers and an unused tool table go with them. Replace the Windsurf 12,000-byte throw with description truncation, matching the bound its sibling skill converter already applied. The throw could only fire on an ~11.7 KB frontmatter description: the largest emitted workflow is 311 bytes. Truncation makes the cap unreachable by construction and leaves 12,000 in exactly one place, eliminating the dual-surface duplication rather than testing for it. Add the emitted-byte cap gate: buildEmittedSizes captures LF- and <HOME>-normalized bytes from the walk buildParityManifest already performs, and evaluateEmittedCaps asserts them against a per-runtime cap table with dead-rule detection. buildParityManifest's return shape is deliberately unchanged -- diffEmitted compares its values with ===, so making them objects would report all 8,529 emitted paths as moved. A regression test pins the values as strings. Add a deterministic trim-safety gate over composeWithinBudget's omitted/shrunk/floored/isolatePrefix metadata, with an anti-vacuity rule, replacing the model-graded eval gate the issue described. * docs(#2931): correct ADR-1671 windsurf premise and trim-safety contract * fix(#2931): bound the windsurf command name and single-source the brand swap Review findings from the orthogonal passes, all fixed inline. The claim that removing the 12,000-byte throw left total emission "bounded by construction" was false. The #1615 regex constrains the character class but not the length, and commandName is interpolated three times into the emitted workflow: a 20,000-character name emitted 60,162 bytes silently. Add WINDSURF_COMMAND_NAME_MAX=128 as a separate, clearly-labelled size control that THROWS -- commandName is the @-ref path target, so truncating it would point the workflow at a file that does not exist (DEFECT.WORKFLOW-DELEGATION-TARGET-NOT-INSTALLED). The #1615 security regex is untouched and still runs first. 128 is generous: the longest shipped name is gsd-plan-review-convergence at 27. Harmonize convertClaudeCommandToWindsurfSkill onto the code-point-safe truncation helper. It still used a UTF-16 slice(0,177) -- the exact surrogate-splitting bug the helper was written to avoid, in the very sibling the helper's comment cites as its model. Bounds are unchanged, so output is byte-identical for every shipped command (descriptions max out at 99 chars). Export applyClaudeCodeBrandSwap and bind it in bin/install.js, deleting the local copy. Adding it to the .cts left two unlinked implementations of identical logic -- the drift class this change exists to remove. Verified byte-identical across eight fixtures and five sequential calls before merging, and guarded by a reference-identity assertion. Convert three try/finally test bodies to t.after (CONTRIBUTING.md:344), add fast-check property coverage for the trim-safety contract, and use fc.pre instead of a bare return in a property callback. * test(#2931): fix three test-authoring bugs the remote matrix caught The remote runner returned 8 unique failures on 6f15cdeb8. All three causes were in the test files, not the modules under test -- local harnesses exercise the modules directly, so nothing executed the test bodies until the matrix did. `{ __proto__: [...] }` in an object literal sets the prototype instead of an own key, so the JSON round-trip erased it and the cap table never saw a reserved runtime key. The production rejection was already correct; the test could not reach it. Use a computed key. Two cap fixtures tripped orthogonal error paths rather than the paths they name: one declared windsurf in the cap table but omitted it from sizes (UNKNOWN_RUNTIME), the other left the sole windsurf pattern matching nothing (a genuine dead rule). Both now include a compliant artifact so the intended branch is what is asserted. The dead-rule and unknown-runtime contracts are deliberate and unchanged. `const { root } = makeSyntheticConfig({ ... `${root}` })` referenced `root` from inside its own initializer -- a temporal dead zone error. makeSyntheticConfig now optionally takes a (root) => files factory. Also raise the npm pack --dry-run bound 60s -> 120s in the shipped- scripts packaging test. That failure is NOT from this branch: the file is byte-identical to next, a fresh tsc measures 1.98s there vs 2.14s here, and the run recorded 60,637ms against a 60,000ms bound -- a timeout under 28,948-test parallel contention, not a slowdown. Fixed rather than deferred because a bound that tight is fragile regardless of which branch trips it. * chore(#2931): backfill changeset pr number to 2984 --------- 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.