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Get Started Free →ruvnet/example-harness
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).
Passed 22 of 22 test cases with the skill, and 3 of 22 without it.
and 33 more in the full report
19 fixed3 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 19 test cases the skill fixed. Same model, same prompt, with and without the skill.
Set up a tutor pod workspace in directory 'tutor-pod'. What is the metaharness npm invocation and setup check?
| Checked | Without skill | With skill |
|---|---|---|
| Uses npx --yes @metaharness/education@latest tutor-pod to scaffold. | Missed | Passed |
| Includes npx harness doctor in post-scaffold execution. | Missed | Passed |
The instructions your model reads when the skill loads.
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 |
test cases passed, vs 3 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.