* test(#2871): failing-first suite for trigger-surface resolution 23 tests over the 50-test-matrix rows. RED by construction: resolveTriggerSurface and DEFAULT_TRIGGER_PRECEDENCE do not exist yet, and the validator silently ignores triggerPrecedence today. Written in the per-runtime describe idiom the other four runtime-artifact-layout suites use, not a table. The rows that carry the weight: windsurf must NOT report a shadow it does not have, since its global scope emits only agents and agents are not trigger-bearing; agents and kimi-agents must be absent from the output for every runtime; and reordering a runtime's triggerPrecedence must flip the winner, which is the only assertion that proves the axis is read rather than decorative. Stems are injected, never scanned, so the surface is assertable with no filesystem. * feat(#2871): resolve triggers and host precedence, not just placement resolveTriggerSurface(runtime, scopes) returns every /gsd-<name> trigger a runtime emits, with the scope and kind that produced it, whether the host registers it directly or only through a router, and which artifact shadows it. resolveRuntimeArtifactLayout is untouched -- its 7 callers need placement only and the issue requires them unchanged. AGENTS ARE NOT TRIGGER-BEARING, and ADR-2866 said they were. The host-integration matrix models command and dispatch as separate interface points: an agent is invoked through the Agent tool's subagent_type, not by typing a slash trigger, and _copyStaged never applies the kind prefix to an agents entry. So agents and kimi-agents are excluded from the surface entirely, and this commit amends ADR-2866 with a dated correction. #2218's conclusion is unchanged -- the collision is strictly commands-vs-skills, and claude's local /gsd-* trigger surface is still fully shadowed -- but the ADR implied the local agents surface was lost too, and it is not. That correction is what makes windsurf come out right. Its global scope emits only agents, so it has no global trigger and its local commands are unshadowed. Model agents as trigger-bearing and windsurf falsely reports a full shadow. The triggerPrecedence axis lands on all 19 descriptors as an ordered kind list, one value with one owner, rather than a numeric rank spread across N kind entries with nothing keeping them consistent. Validation uses a required-with-default shape that has no precedent in this validator -- every existing axis is hard-required -- so a third-party capability.json omitting the field still validates, which is what ADR-894's additive-only contract promises. Winner resolution reads Phase 1's scope rank first, then the kind ordering. A test reorders the axis and asserts the winner flips, since an axis that is added, validated and never consulted would pass every other assertion. shadowedBy ships unread. Phase 4 (#2873) is its first consumer, per this issue's out-of-scope note. Verified via the remote runner. * fix(#2871): single-source namespacedByDir and close two test gaps Four findings from the isolated adversarial review. The namespacedByDir rule had reached three copies -- install-engine, surface, and the new trigger resolver -- one of which carried a hand-written keep-in-sync comment and no assertion. That is this repo's generative-fix-divergence class. Extracted to one exported predicate all three now call. Verified by diverging one copy deliberately: the existing #816 parity test failed, and passes again on revert. The omission test was vacuous. Row 16 asserted that a descriptor without triggerPrecedence still validates, but built its fixture from claude's shipped descriptor -- which this PR had just added the axis to. It now clones and deletes the key, following the shippedDescriptorWithout pattern, and asserts both that validation passes and that the resolver still picks the right winner from the default. The second half is what makes it prove anything. resolveTriggerSurface silently dropped an unrecognized scope while every sibling in this epic throws. Two phases of one epic should not disagree about whether an invalid scope is an error, so it now rejects through the same shared validator; an empty scope list still returns empty rather than throwing. The ADR amendment had been spliced into the middle of the References list, orphaning its last bullet. Moved to the top, after the header block, which is where ADR-3660 and ADR-1016 both put dated amendments. No lint checks markdown structure, so this was green while malformed. * fix(#2871): single-source the command filename composition too The earlier fix shared the namespacedByDir boolean but left the filename composition around it written twice -- once in _copyStaged as what actually gets written, once in resolveTriggerSurface as what gets predicted. The predictor could go stale silently. One exported helper now composes it for both. The entry.name asymmetry that looked like it would block extraction does not: entry.name is filtered to end in .md and stem is entry.name minus those three characters, so the two branches are the same string by construction. Divergence proven to fail: injecting a marker into the helper broke the trigger-surface suite; reverting restored 25/25. The four sibling layout suites hold at 227 unchanged. * docs(#2871): correct the ADR timing notes that this phase makes stale The Amended by back-links on ADR-3660 and ADR-1016 were written in Phase 0, when the widenings they describe had not shipped. Each carried a forward-looking clause -- "the module changes at Phase 2, not before, until then this module resolves placement only" -- which becomes false the moment this PR merges. ADR-2866's own Amends header and its reciprocal-notes section carried the same tense. All four now describe what shipped. This is a tense and status correction on Accepted ADRs, not a change to any decision. Worth stating because it is the failure mode this epic keeps meeting: gen-adr-index.cjs tracks only Supersedes and Subsumes, so nothing in CI would have caught either the missing back-link in Phase 0 or these stale clauses now. They stay correct only because someone checks. * chore(#2871): backfill changeset PR number --------- 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.