9b750dc00a
* test(#4505): cover runtime-aware overrides and routing precedence Failing-first for both halves of the issue, plus the precedence layers a naive fix silently defeats. Every row drives the REAL CLI in a subprocess. That is load-bearing: the defect is WHICH function the shipped call sites reach, so a row calling the resolver in-process would pass while every real spawn stayed broken. It also makes GSD_RUNTIME hermetic -- it is ambient, and an in-process row would leak it into its neighbours. Two fixture mechanics are documented in the helper because each silently invalidates a row when got wrong, and both were found by measuring rather than by reading the loader: - the loader reads `process.env.GSD_HOME || os.homedir()`, so redirecting only HOME leaves a developer's real ~/.gsd/defaults.json in play; - the mere EXISTENCE of a .planning/ directory disables the shared-defaults layer, so a fixture that creates one stops exercising the "poisoned global" path #2297 acceptance #4 is about. Measured: .planning/ with config -> gpt-5.6-terra; .planning/ present but empty -> gpt-5.6-terra; no .planning/ at all -> "". Rows cover: both reported repros; the init payload a real spawn reads; the omit gate, the runtime tier map and model_overrides each outranking the tier table; model/tier coherence under dynamic routing; resolve-execution with the attempt absent; max_escalations at limit-1/limit/limit+1 plus a cap of 0; and four fail-safe rows pinning that only a value canonicalizing to a recognised non-Claude runtime may outrank an omit. Registers the docs-guard exemption path: the rows quote the documented first-spawn contract in comments. The file still never READS a docs/ path. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(#4505): resolve models through the active runtime and the tier table Consolidates #4495 and #4493. One gap: the function every agent spawn goes through consulted neither mechanism that was supposed to make resolution runtime- and tier-aware. Half A -- the runtime was READ from config, not resolved. resolveActiveRuntime (GSD_RUNTIME -> config.runtime -> per-install marker -> claude) existed and worked, but was called exactly once in the file. Every other site read config['runtime'] raw, and that key is normally absent, so model_profile_overrides.<runtime>.<tier> was inert for any install that identifies its runtime through the environment or the marker. Same override both times, differing only in WHERE the runtime is declared: GSD_RUNTIME=opencode, no runtime key -> sonnet (ignored) runtime:"opencode" in the config -> TEST-OPENCODE (works) Half B -- nothing consulted dynamic_routing on the first spawn, though docs/features/dynamic-routing-with-failure-tier-escalation.md documents "the resolver picks tier_models[default_tier] for the FIRST spawn". The tier-table lookup is extracted into ONE helper both entry points call, so the first-spawn value and the escalated value cannot drift; resolveModelInternal calls it at attempt 0 and resolveModelForTier at the real attempt. Placement is the documented composition, not a convenience. The same doc says "model_overrides always wins; dynamic_routing.tier_models[<tier>] resolves above models.<phase_type> and model_profile" -- so the step sits BELOW model_overrides, the model_policy preset, the runtime tier map, the resolve_model_ids:"omit" gate and the claude tier override, and ABOVE the profile lookup. An earlier cut routed every call site through resolveModelForTier instead, which returns the tier model directly and therefore skipped three of those layers: with an omit and a non-Claude runtime it handed out a model id where the gate had returned "". Criterion 1 is applied in full, including the two value-policy reads #4192 had recorded as "NOT via resolveActiveRuntime". The tests decided it: switching them breaks nothing, so that reading was never enforced -- and the old behaviour defeated #4192's own principle that an explicit pin must not be silently unpinned (claude-opus-4-8 under GSD_RUNTIME=opencode collapsed to the Claude-only alias opus). #4192's comment is updated in place rather than left stale. The step-3 opt-in signal is CANONICALIZED. Comparing the raw config field against the literal 'claude' made runtime:"Claude", "claude-code" and even 5 count as non-Claude opt-ins and outrank an explicit omit -- failing OPEN in exactly the #2297 case the guard exists to protect. null now covers both "not a string" and "not a runtime we recognise", and both read as NOT an opt-in. Verified cell by cell against a pristine origin/next worktree. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#4505): backfill changeset PR number (#4726) --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 <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.