harness-skills

Plugin harness-skills from marketplace agent-harnesses in RyanAlberts/best-of-Agent-Harnesses. Commands read from the repo's manifest — 4 days ago.

Skills (10)

• agents-md-checker

  Checks which instruction files (AGENTS.md, CLAUDE.md, GEMINI.md, Cursor rules, Copilot instructions) each coding agent loads from a repo, what gets cut or skipped, and whether the commands those files document still work. Use when the user asks whether Claude Code, Codex, Gemini CLI, Cursor, OpenCod

• claim-check

  Claim checker that audits a coding agent's statements that tests pass or a build is clean against its own session transcripts: whether a matching run happened before the claim, whether it passed, and whether code changed after it. Use when the user asks whether the agent really ran the tests, how of

• guardrail-tester

  Guardrail tester that checks whether the permission rules and PreToolUse hooks already set up in Claude Code, Codex, Gemini CLI, OpenCode, or Cursor stop a battery of dangerous commands, including wrapped, reordered, and full-path forms that slip past prefix rules, and measures prompt friction on th

• harness-test-drive

  Test-drives coding agents (Claude Code, Codex, Gemini CLI) on tasks mined from the user's own git history: each agent gets a past commit message in a fresh copy of the repo, and the repo's own tests score how many tasks it completes, dollars per task, minutes, and change size. Use when the user asks

• regression-finder

  Regression check for coding agents: shows how the agent behaved before and after each harness update, model switch, or week in the user's own Claude Code or Codex history, and finds the point where it changed. Use when the user says the agent's quality dropped or it got worse, dumber, lazier, or deg

• rules-to-guards

  Rule enforcer that finds which written rules in AGENTS.md, CLAUDE.md, and GEMINI.md a coding agent keeps breaking, counts every violation in recent Claude Code, Codex, Gemini CLI, and OpenCode sessions, and turns each broken rule into a hook that blocks it, tested by replaying the past violations. U

• runaway-guard

  Runaway guard: a hook that stops a live Claude Code or Codex session when the agent loops on the same tool call, keeps failing, or exceeds a dollar cap. Use when the user wants a spending cap, budget limit, or cost ceiling for interactive agent sessions (the built-in --max-budget-usd works only in p

• sandbox-check

  Sandbox audit that probes, from inside a live coding-agent session, what the agent can really reach: secret files it can open, secret-like environment variables, files that git, the shell, the editor, or the harness later run (git hooks, shell startup files, harness settings), writes outside the pro

• session-waste-report

  Waste report for coding-agent sessions in Claude Code, Codex, Gemini CLI, and OpenCode: finds where tokens, money, and time were wasted, and the fix for each kind of waste. Use when the user asks where tokens or money went or why the bill is so high; about habits that burn tokens, such as re-reading

• tool-design-checker

  Grades MCP tool definitions the way a model reads them: a clear purpose, described parameters, safe annotations such as readOnlyHint, and the token size of every tool. Use when an author wants to lint, grade, or review an MCP server's tools, tool descriptions, or input schemas before release; when a

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