a3853472de
* fix(#2598): declare OpenCode subagent dispatch synchronous, not background capabilities/opencode/capability.json advertised dispatch.background: true and dispatch.backgroundDispatch: true. negotiateHostCapabilities and every degradationFor / shouldFlattenDispatch consumer trusts these per-field values, so declaring a capability the host lacks OVERSTATES it — the opposite of the fail-closed posture the negotiation is built for. The issue's own citations needed checking before acting: the host-integration matrix (ADR-1239's designated deployment source-of-truth) documented `true` with NEWER evidence than the issue cited, and explicitly marked the issue's sst/opencode#5887 reference as a stale snapshot superseded by #2087. git log confirms #2087 deliberately flipped these from false to true, citing OpenCode v1.15.0/v1.17 as "background subagents enabled by default in all modes". Applying the issue as filed would, on that evidence, have REGRESSED a deliberate update. So the claim was verified against current upstream rather than either document. `packages/opencode/src/effect/runtime-flags.ts` on `dev` today reads: experimentalBackgroundSubagents: enabledByExperimental("OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS") `enabledByExperimental` falls back to the `experimental` flag and `bool()` defaults to false — the parameter is hidden from the model unless an operator opts in by env var. Upstream #29638 is still OPEN and confirms the session loop `tasks.pop()`s one subtask at a time. #2087's "default-on in all modes" reading does not hold against current dev. The issue's CONCLUSION is therefore right even though part of its evidence was superseded: concurrent dispatch cannot be relied on, so both fields are false. The matrix rows are corrected with the verified citation rather than reverted to the old #5887 quote, so the record shows why the value is false TODAY rather than re-asserting evidence that was legitimately superseded. Neighbouring sub-fields are untouched and pinned by test: namedDispatch, subagentToolkit, and isolation:'orchestrator-worktree' (which works via `opencode run --dir` at the OS process level and is unaffected — #2584 does not depend on this value either way). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ * fix(#2598): re-pin the dispatch contract tests to synchronous OpenCode dispatch gsd-test on the descriptor change came back FAILED (5 unique, both node versions). The failures were not incidental — they were deliberate contract-pin tests encoding #2087's decision, one named literally "background UPGRADE": tests/host-integration-descriptors.test.cjs - EXPECTED_FLATTEN[opencode] === false (background-eligible) - the derived background-eligible set pin tests/opencode-imperative-reference.test.cjs - "descriptor declares background dispatch true/true (v1.15/v1.17 upgrade)" - "background UPGRADE changes shouldFlattenDispatch: false now" So this is a recorded decision being reversed, not drift being corrected, and it is reversed on evidence: current upstream `dev` gates the capability behind OPENCODE_EXPERIMENTAL_BACKGROUND_SUBAGENTS (default false) and upstream #29638 (OPEN) confirms the session loop still handles one subtask at a time. The issue is filed by the maintainer and explicitly directs "update golden-parity / validator fixtures as needed", which sanctions re-pinning. Behavioral consequence, verified: shouldFlattenDispatch(opencode) now returns TRUE, so GSD serializes opencode dispatch instead of trusting concurrency it cannot get. That is the correct fail-closed direction and is safe today — no shipped GSD flow drives OpenCode background waves (per the issue), and isolation:'orchestrator-worktree' is unaffected because it works at the OS process level via `opencode run --dir`, not via the native subagent. Each re-pinned test now asserts the retracted contract in the opposite direction — feeding the #2087 axes back in must still yield "would not flatten" — so a silent re-flip of either field is caught rather than merely un-asserted. lint:ci exit 0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ * chore(#2598): backfill changeset pr number (#2682) --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
GSD Core
Git. Ship. Done.
English · Português · 简体中文 · 日本語 · 한국어
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.