a2c7b879d0
The issue's "0 conditional branches" premise missed a live one: the `!isZcode`
shared-hooks exclusion (bin/install.js). Fold it onto descriptor-driven
hostBehaviors.skipSharedHooksInstall:true (zcode's golden has zero hook files —
byte-parity verified) and drop the now-unused isZcode destructure. Zero live
runtime==='zcode'/isZcode branches remain (AC2 source-grep guard over
bin/install.js + install-engine.cts + surface.cts + runtime-artifact-conversion.cts).
The 6 CLI-bookkeeping zcode mentions (--zcode flag, menu, roster, help) stay.
Reference test (declarative-reference-zcode.test.cjs): profileOf → declarative-cli;
createDeclarativeAdapter({runtime:'zcode'}).kind → declarative; a real install emits
the invocable nested-skills/commands/agents surface (no hooks); negotiateHostCapabilities
fail-closes (empty/corrupt descriptor; the nested/maxDepth undocumented sub-axes degrade
to most-restrictive); validateCapability clean.
UPGRADES documented as BLOCKED (verified doc gaps — NOT guessed, to avoid a
non-functional false-green): both of ZCode's documented capabilities lack a published
on-disk config format.
- Hook automation: zcode.z.ai/en/docs/plugin documents the Hook component only as
"automation hooks triggered on specific events" (capability detected from directory
layout) — no config file format/location/event schema. Cannot faithfully wire.
- MCP registration: zcode.z.ai/en/docs/mcp-services says servers are "stored in the
.zcode configuration file" (UI-only) with no documented on-disk filename/path/schema —
exactly the settings-filename gap the issue AC anticipated.
Both are documented (with the search trail) in the capability matrix + how-to, per AC4's
block-documentation clause; hookBus/transport stay declared for when ZCode publishes the
formats. No hook scripts or MCP artifacts added → no golden change, no other-runtime impact.
Golden: byte-identical for all 16 runtimes (the fold is byte-parity; no upgrade artifacts).
Matrix ## zcode EoS note + how-to; changeset (Changed). capability-registry regenerated.
Co-Authored-By: Claude Opus 4.8 <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
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.