Scaffold a ready-made AI agent harness in one command from the 19 published @metaharness/* example packages — 9 host integrations (Claude Code, Codex, Hermes, pi.dev, OpenClaw, RVM, Copilot, OpenCode, GitHub Actions) + 10 vertical pods (devops, research, trading, support, legal, coding, education, sales, gaming, repo-maintainer).
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Review the instructions the agent will receive before you install.
One-command scaffolding from the 18 published @metaharness/* example
packages — the fastest path from a use-case to a working harness, no
template/host flags to remember.
Where create-harness walks the full wizard, this
skill maps a use-case straight onto a published npm wrapper. Each wrapper
shells out to metaharness@latest with the correct --template + --host
flags, so the result is byte-identical to the full CLI invocation.
mkdir -p ~/.codex/skills/example-harness
curl -fsSL https://raw.githubusercontent.com/ruvnet/agent-harness-generator/main/.codex/skills/example-harness/skill.toml \
-o ~/.codex/skills/example-harness/skill.toml
No MCP server needed — the wrapper packages run via npx.
/example-harness
Codex prompts for the package + a directory name, then runs:
npx --yes @metaharness/<package>@latest <name>
Host integrations (scaffold a workspace wired for one runtime)
| Package | Scaffolds |
|---|---|
@metaharness/claude-code | Claude Code workspace + plugin |
@metaharness/codex | OpenAI Codex |
@metaharness/hermes | Hermes cli-config |
@metaharness/pi-dev | pi.dev AGENTS.md |
@metaharness/openclaw | OpenClaw .openclaw/ |
@metaharness/rvm | RVM deployment partition |
@metaharness/copilot | VSCode / Copilot mcp.json |
@metaharness/opencode | OpenCode .opencode/ |
@metaharness/github-actions | GitHub Actions CI/CD (non-interactive) |
Vertical workflows (ready-made multi-agent pods)
| Package | Scaffolds |
|---|---|
@metaharness/devops | incident response |
@metaharness/research | multi-source dossier |
@metaharness/trading | quant trading (paper-by-default) |
@metaharness/support | customer support |
@metaharness/legal | contract redline (drafts only) |
@metaharness/coding | engineering pod |
@metaharness/education | tutor pod |
@metaharness/sales | sales pipeline pod |
@metaharness/gaming | game-design pod |
@metaharness/repo-maintainer | OSS repo maintainer |
cd <name> && npm install
npx harness doctor # health-check
npx harness validate # full umbrella gate
Every scaffold ships a .claude-plugin/plugin.json, so it also loads as a
Claude Code plugin: claude -p --plugin-dir <name> "...".
Per-package deep-dive gists: see
examples-packages/GISTS.md.
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Diff two scaffolded harnesses (ADR-031). Reports manifest meta drift + host list + per-file fingerprint changes (added/removed/changed). Exits 0 IDENTICAL, 1 DRIFT, 2 missing manifest. Use --bundle for the ADR-031 schema-1 JSON envelope.
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Scaffold your own focused AI agent harness — pick host (Claude Code, Codex, pi.dev, Hermes), template, agents, skills, and ship a npm-publishable harness with its own npx CLI. Use when a user asks to "create my own agent harness", "scaffold a harness", "make a custom Claude Code plugin like ruflo", or "build a vertical AI assistant for X".
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Kernel-version skew check (ADR-027). Reports manifest surface + manifest kernel + installed kernel + verdict (match/patch-diff/minor-diff/major-diff). Exits 1 on minor/major skew with a copy-pasteable `npm install @metaharness/kernel@X.Y.Z` next step. Exits 2 if no .harness/manifest.json at path.
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Evolve this harness with Darwin Mode — frozen model, evolving harness (real, sandboxed, safety-gated).
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GCP Secret Manager integration: validate setup, fetch values, or confirm an NPM_TOKEN is non-revoked via `npm whoami`. Used for publish-time token rotation without long-lived keys in CI.
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List the available harness templates and what each one ships with. Use when the user asks "what templates are available", "what verticals does the harness generator support", or "show me what I can scaffold".
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