agent-harness plugin
Turn any domain folder of skills into a bounded agentic loop: a manifest builder inventories a domain's skills/tools/checks, a goal compiler turns a goal into a verifiable task plan (refusing vague goals with forcing questions), and a JSON-backed loop controller drives execute->verify->close with retry caps, controller-run verification (no verification theater), human escalation on exhausted budgets, and a close gate that refuses while any task is unverified or unwaived. Ships 3 stdlib Python tools, 18 committed per-domain harness manifests + JSON schema, 3 references citing the 2024-2026 agent-harness canon (Anthropic long-running harnesses, verifier's law, SWE-agent, Ralph loop, Cognition), harness-runner agent + /cs-harness command. Use when an agent or subagent should pick up a goal, define its tasks, complete and verify them, and close the loop.
How to install the agent-harness plugin
Run both commands inside Claude Code. The first adds the marketplace once; the second installs the plugin.
/plugin marketplace add alirezarezvani/claude-skills
/plugin install agent-harness@claude-code-skillsWhat's inside agent-harness
3 parts read from the plugin's own files.
Commands 1
Run as /agent-harness:name- /agent-harness:cs-harness
No description in the file.
Agents 1
Call as @agent-agent-harness:name- @agent-agent-harness:harness-runner
No description in the file.
Skills 1
Claude loads it when the task matches- agent-harness
No description in the file.
Using agent-harness in Claude Code
Type a command in a Claude Code session:
/agent-harness:cs-harnessAsk for an agent by name:
@agent-agent-harness:harness-runnerSkills need no command. Claude reads them when your request matches what they describe.
Update, turn off or remove
- Update the plugin (shell)
- claude plugin update agent-harness@claude-code-skills
- Refresh the marketplace
- /plugin marketplace update claude-code-skills
- Turn it off for now
- /plugin disable agent-harness@claude-code-skills
- Remove it
- /plugin uninstall agent-harness@claude-code-skills
agent-harness plugin questions
How do I install the agent-harness plugin?
In Claude Code run /plugin marketplace add alirezarezvani/claude-skills, then /plugin install agent-harness@claude-code-skills.
What does the agent-harness plugin include?
agent-harness bundles 1 command, 1 agent, 1 skill.
What commands does the agent-harness plugin add?
It adds /agent-harness:cs-harness. Run them in Claude Code with the plugin prefix, for example /agent-harness:cs-harness.
Which agents come with agent-harness?
harness-runner. Call one with @agent-agent-harness:harness-runner.
How do I update or remove the agent-harness plugin?
Update it with claude plugin update agent-harness@claude-code-skills in your shell, or from the Installed tab of /plugin. Remove it with /plugin uninstall agent-harness@claude-code-skills.