GSD Coordinator

Dispatch-verify-synthesize orchestration across Claude/Codex/OpenCode — but needs a separate agent-mux CLI to actually run.

Works with setup

Test report

Verdict
Works with setup
Score
8.4/10
Tested
Jul 15, 2026
Environment
Claude Code 2.x (agent harness)
Upstream re-checked
Aug 10, 2026 · f7a89c1

The skill folder itself installs clean and both internal references resolve, but real dispatch is a no-op without the separate agent-mux CLI: `agent-mux --help` returned 'command not found' (exit 127) on this machine, exactly the failure mode its own Error Handling table anticipates — so out of the box it can only produce a plan, not actually run Codex/OpenCode workers.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

  • Installs cleanly 5/5
  • Triggers reliably 5/5
  • Output vs. baseline 6/10
  • Docs & honesty 5/5

What GSD Coordinator does

Project-manager-style playbook for splitting a multi-step coding task across Claude, Codex, Codex Spark, and OpenCode workers, verifying their output, and synthesizing a final result. Triggers when work spans multiple dependent steps, benefits from model diversity, or needs an independent-model audit pass; it requires the external agent-mux CLI to actually dispatch workers, and falls back to a planner-only mode when that CLI is unavailable.

How to install GSD Coordinator

git clone https://github.com/buildoak/fieldwork-skills
cd fieldwork-skills
mkdir -p ~/.claude/skills
cp -r skills/gsd-coordinator ~/.claude/skills/gsd-coordinator

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger GSD Coordinator

  • /gsd-coordinator Dispatch-verify-synthesize orchestration across Claude/Codex/OpenCode — but needs a separate agent-mux CLI to actually run.

It also activates on plain-language prompts like these:

  • Split this JWT auth refactor across Codex and Claude and verify the output
  • Coordinate Codex, Claude, and OpenCode workers on this multi-step task
  • Dispatch part of this feature to Codex Spark and have Claude audit it

Frequently asked questions

Is the GSD Coordinator skill free?
Yes. The skill itself is free from buildoak/fieldwork-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does GSD Coordinator work with Claude Code?
We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Works with setup. The skill folder itself installs clean and both internal references resolve, but real dispatch is a no-op without the separate agent-mux CLI: `agent-mux --help` returned 'command not found' (exit 127) on this machine, exactly the failure mode its own Error Handling table anticipates — so out of the box it can only produce a plan, not actually run Codex/OpenCode workers.
What is the GSD Coordinator SkillProof Score?
8.4/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 6/10, docs & honesty 5/5.
How do I install GSD Coordinator?
Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use GSD Coordinator with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.