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agent-authoring-toolkit

v1.1.0

A suite for authoring Claude Code artifacts: reviewing-claude-skills and reviewing-claude-subagents each review their artifact in two passes — structure first, stopping at a structural verdict when the shape fails (fit-for-purpose leads the subagent gate), otherwise a full sweep ending in a computed verdict that honors the artifact's recorded waivers; improving-claude-skills and improving-claude-subagents loop the matching review autonomously — review → apply every blocking finding → commit → re-review — until the verdict is acceptable, the findings plateau, or the round cap is hit, asking only one question: the intent brief at kickoff. The subagent loop ends instead of converting when a review says the subagent should be a skill.

Claude Code4 Skills

By Tamas MezeiLicense: MIT0 GitHub starsUpdated 3 hours ago

Directory evidence

Runtimes
Claude Code
Parsed components
4 skill or MCP entries
Source updated
Aug 28, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology

Install plugin

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install agent-authoring-toolkit@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/brokenrobot-xyz/agent-skills

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/agent-authoring-toolkit/.

Plugin files

plugins/agent-authoring-toolkit/
├── .claude-plugin/plugin.json
├── skills/improving-claude-skills/SKILL.md
├── skills/improving-claude-subagents/SKILL.md
├── skills/reviewing-claude-skills/SKILL.md
└── skills/reviewing-claude-subagents/SKILL.md

Included Skills4

improving-claude-skillsskills/improving-claude-skills/SKILL.md

Autonomously improves a Claude Code skill in a review→fix→re-review loop: each round invokes the reviewing-claude-skills review non-interactively, applies every blocking finding — High and structural findings included — without per-fix approval, commits the round, and re-reviews, until the review's verdict is acceptable, the blocking findings plateau, or the round cap is hit. Advisory findings are reported, never chased. Asks one question only: confirming the intent brief at kickoff. Use when the user asks to improve a skill autonomously, in a loop, or until it passes review.

improving-claude-subagentsskills/improving-claude-subagents/SKILL.md

Autonomously improves a Claude Code subagent definition in a review→fix→re-review loop: each round invokes the reviewing-claude-subagents review non-interactively, applies every blocking finding — High and structural findings included — without per-fix approval, commits the round, and re-reviews, until the review's verdict is acceptable, the blocking findings plateau, or the round cap is hit. A gated verdict recommending a different artifact form — 'this should be a skill' — ends the loop for the human instead of being applied. Advisory findings are reported, never chased. Asks one question only: confirming the intent brief at kickoff. Use when the user asks to improve a subagent autonomously, in a loop, or until it passes review.

reviewing-claude-skillsskills/reviewing-claude-skills/SKILL.md

Reviews a Claude Code skill — its SKILL.md, evals, and referenced files — in two passes. Structure first: a workflow whose shape fails High stops at a structural verdict with a redesign recommendation. Otherwise a full detail sweep against skill-authoring and prompting best practices plus the host project's conventions produces a severity-ranked gap analysis ending in a computed verdict — acceptable, or not yet — honoring the skill's recorded waivers, optionally applying approved fixes. Use when the user asks to review, audit, or improve a skill.

reviewing-claude-subagentsskills/reviewing-claude-subagents/SKILL.md

Reviews a Claude Code subagent definition — its frontmatter, body, declared tools, and the siblings it competes with for routing — in two passes. Structure first: a definition whose form or shape fails High stops at a structural verdict with a redesign recommendation. Otherwise a full detail sweep against subagent-authoring and prompting best practices plus the host project's conventions produces a severity-ranked gap analysis ending in a computed verdict — acceptable, or not yet — honoring the subagent's recorded waivers, optionally applying approved fixes. Use when the user asks to review, audit, or improve a subagent or an agent definition.

Plugin manifests1

plugins/agent-authoring-toolkit/.claude-plugin/plugin.json
{
  "name": "agent-authoring-toolkit",
  "description": "A suite for authoring Claude Code artifacts: reviewing-claude-skills and reviewing-claude-subagents each review their artifact in two passes — structure first, stopping at a structural verdict when the shape fails (fit-for-purpose leads the subagent gate), otherwise a full sweep ending in a computed verdict that honors the artifact's recorded waivers; improving-claude-skills and improving-claude-subagents loop the matching review autonomously — review → apply every blocking finding → commit → re-review — until the verdict is acceptable, the findings plateau, or the round cap is hit, asking only one question: the intent brief at kickoff. The subagent loop ends instead of converting when a review says the subagent should be a skill.",
  "version": "1.1.0",
  "author": {
    "name": "Tamas Mezei",
    "url": "https://www.brokenrobot.xyz"
  },
  "license": "MIT",
  "keywords": [
    "skills",
    "subagents",
    "skill-authoring",
    "review",
    "audit",
    "improvement",
    "autonomous",
    "loop",
    "quality"
  ],
  "dependencies": [
    "prompt-quality-criteria",
    "writing-simplified-technical-english"
  ],
  "homepage": "https://github.com/brokenrobot-xyz/agent-skills/tree/main/plugins/agent-authoring-toolkit"
}

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[agent-authoring-toolkit on Agent Plugins Marketplace](https://pluginsmp.com/plugins/agent-authoring-toolkit)