* test(#2711): derive the omit-rule guarded set from the corpus instead of a hand list The GUARDED array was a Goodhart metric: it reported green across 15 non-compliant workflows for no better reason than that nobody had added them to it. The guard now derives its set — every workflow emitting a model="{…}" dispatch site must state the omit-on-inherit/empty rule — and asserts the derivation is non-empty so a broken scan fails rather than passes. Rule detection stays a PROPERTY check, not a template match: plan-phase.md and execute-phase.md state it in different words and both are correct. RED expected on 15 workflows: audit-milestone, code-review, code-review-fix, debug, discuss-phase-assumptions, docs-update, map-codebase, new-milestone, new-project, quick, secure-phase, ui-phase, ui-review, validate-phase, verify-work. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DPq9ovaovP2UvSVLjD4Lso * fix(#2711): propagate the #2517 omit-on-inherit rule to all 15 unguarded workflows 15 of the 19 model=-dispatching workflows carried no omit-on-inherit/empty guidance — 43 unguarded dispatch sites. Each would emit model="" whenever the bound *_model resolved empty, which is the DEFAULT state on non-Claude runtimes: the installer writes resolve_model_ids:"omit" into ~/.gsd/defaults.json for every one of them (references/model-profiles.md:101), and resolveModelInternal returns "" for that case (src/model-resolver.cts:383-386) and "inherit" for opus-tier agents and the inherit profile (:395). Both 404 on runtimes without native tier aliases — the failure #2517 documented and fixed in one file. Each file now carries a `<!-- #2517 model-omit-on-inherit -->` blockquote naming its own bound placeholders and linking the canonical statement in references/model-profile-resolution.md, mirroring the `<!-- #2508 runtime-aware-dispatch -->` block already present in all 15. The rule text lives in the reference; the workflows carry a pointer plus the one-line instruction, so the next revision edits one file rather than fifteen. plan-phase.md and execute-phase.md are deliberately untouched — they already state the rule in their own wording, and the guard checks the property rather than a template string. No dispatch site is edited and no placeholder renamed: the #2684 binding guard reports the same 19 files / 60 placeholders / 0 findings before and after, which is the independence proof that this change is additive prose only. There is no Hyrum's-Law routing change to disclose. Placement is span-aware. An initial pass anchored to the #2508 marker, but in six files that marker sits INSIDE the Agent(prompt="…") string, so the new paragraph's literal model= landed in a dispatch call span and tripped the #2284 fail-closed Hermes projection guard (bin/install.js:3704), refusing the install. Blocks are now anchored before the opening Agent( of the span owning the first dispatch, and verified to fall inside no span. gen:golden exits 0 across all 19 runtimes. Fixes #2711 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DPq9ovaovP2UvSVLjD4Lso * fix(#2711): cite the issue number in the changeset body and tidy block placement Review findings from the two orthogonal passes: - The changeset body ended (#0). Repo convention across every prior fragment (e.g. #2617/#2693, #2608, #2605) is that the trailing (#NNN) is the ISSUE number, known at authoring time; only the frontmatter pr: field carries the 0 placeholder pending backfill. (#0) would have rendered a dead link in the published release notes. - new-milestone.md glued the inserted block directly under the preceding paragraph with no blank line, inconsistent with the other 14 insertions. - The derived-guard non-vacuity floor was >=17 against an actual derived count of 19, tolerating a silent two-file regression. Tightened to >=19. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DPq9ovaovP2UvSVLjD4Lso * fix(#2711): reword the omit block so it survives Hermes projection, and exempt quick.md by size The first block wording regressed two suites on the full matrix (4 failures on both linux-node22 and linux-node24). gen:golden passing was not sufficient evidence — it exercises the installer's own fail-closed guard, which is narrower than the dedicated tests. 1. tests/fix-2284-hermes-agent-delegate-task-projection.test.cjs asserts that the INSTALLED code-review-fix.md contains no `model=` anywhere outside a string literal — masked whole-file, not merely inside call spans. The block's backticked `model=` survived the mask. The assertion is right: on Hermes the projection strips the parameter because delegate_task has no per-call model at all, so instructing the orchestrator to "omit the model= parameter" is advice about a parameter that does not exist there. The block now says "the `model` parameter" and carries no bare `model=` token. 2. tests/prompt-injection-scan.security.test.cjs flagged quick.md at 50,164 normalized chars against a 50,000 prompt-stuffing threshold. quick.md sits just under the line on next, so any insertion trips it — the situation review.md is already documented for in SIZE_ONLY_WORKFLOWS ("sat at 49,971 chars — 29 below the threshold — so it was going to trip on whatever was added to it next"). quick.md joins it with the same justification. This is a size-finding exemption only: the file is still fully injection scanned, and every other security check still runs on it. Because the canonical block can no longer carry a literal `model=`, the guard's detector now accepts the `<!-- #2517 model-omit-on-inherit -->` marker as the canonical signal, falling back to the inline-prose property for the four files that predate it (plan-phase, execute-phase, scan, ship — all four match the legacy branch). That is strictly stronger than word-proximity matching, and it keeps the guard a property check rather than a template match. Verified: derived guard 19/19 with 0 missing; the #2684 binding guard unchanged at 19 files / 60 placeholders / 0 findings; no inserted block contains a bare model= token; the masked-projection assertion passes for code-review-fix.md; gen:golden exits 0 across all 19 runtimes; lint:ci exits 0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DPq9ovaovP2UvSVLjD4Lso * chore(#2711): backfill changeset PR number Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DPq9ovaovP2UvSVLjD4Lso --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.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.