harness-config

harness-config is a plugin for Claude Code from melodic-software/claude-code-plugins. Its manifest loads nothing; the 8 skills it bundles cost 839 tokens per session together, scanned A, a copy of claude-config, MIT.

A configuration-health plugin for Claude Code repositories that audits settings, permissions, hooks, plugins, instruction files, and automation-related gaps.

In plain words
What is it for?
It is for reviewing and drafting Claude Code configuration, checking effective permissions, and assessing whether repository instructions fit the current model.
Why use it?
It helps identify configuration drift, ineffective permission rules, conflicting instructions, and setup that is written where the tool will not read it.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest. Also seen: mentions Claude Code.

Good fit It is for reviewing and drafting Claude Code configuration, checking effective permissions, and assessing whether repository instructions fit the current model.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add melodic-software/claude-code-plugins
/plugin install harness-config
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/melodic-software/claude-code-plugins

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for harness-config

README.md
[![agentmods](https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/harness-config/github.svg)](https://agentmods.dev/plugins/melodic-software/claude-code-plugins/harness-config)
Your own site
<a href="https://agentmods.dev/plugins/melodic-software/claude-code-plugins/harness-config"><img src="https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/harness-config/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for harness-config

Your own site · 80×15
<a href="https://agentmods.dev/plugins/melodic-software/claude-code-plugins/harness-config"><img src="https://agentmods.dev/badge/plugins/melodic-software/claude-code-plugins/harness-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 8 skills cost 839 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

harness-config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

89% identical to claude-config — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/harness-config/.claude-plugin/plugin.json · 23 lines

What it actually says

{
  "name": "harness-config",
  "version": "1.14.6",
  "description": "Configuration health for a repo's Claude Code: audit (settings, .mcp.json, hooks, plugins, permission drift), audit-automation-gaps, audit-permission-grants, audit-permission-state (effective rules with provenance), draft-auto-mode-rules (prints an autoMode block), audit-instructions (instructions the model no longer needs, conflicts), audit-prompting-postures, audit-pass (one ordered, resumable pass), unhobble (strip instructions, re-add what evidence earns), and setup.",
  "author": {
    "name": "Melodic Software",
    "email": "[email protected]"
  },
  "license": "MIT",
  "keywords": [
    "settings",
    "configuration",
    "hooks",
    "plugins",
    "permissions",
    "automation",
    "audit",
    "maintenance",
    "skill",
    "instructions"
  ]
}
Contents

What it installs

The manifest is a name and a version. 8 skills travel with it, and installing the plugin installs all of them — 839 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday Changed 62d0874d9358
  2. 2d ago Changed bc29b9ff4919
  3. 4d ago Changed 2794b8d58102
  4. 5d ago Changed c609bc4a9555
  5. 7d ago Changed 40c41deccdc9
  6. 8d ago Changed 699c8d0adbbc
  7. 10d ago Changed 5872e00416d6
  8. 11d ago Changed 36153c5c7a13
  9. 12d ago Changed · -1 lines cd2373177b94
  10. 13d ago First seen · 24 lines scan A dd038b380f38

Subscribe to this mod's changes

harness-config is a plugin published in the GitHub repository melodic-software/claude-code-plugins (25 stars, last pushed today), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 89% identical to claude-config, differing in 7 lines, and is treated as a copy.