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skill-tools

v1.3.5

Skills for creating and reviewing Claude Code extensions and validating shared skills under Claude Code and Codex.

Claude Code6 Skills

By JT Sternberg5 GitHub starsUpdated 2 days ago

Directory evidence

Runtimes
Claude Code
Parsed components
6 skill or MCP entries
Source updated
Sep 21, 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 skill-tools for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install skill-tools@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/jtsternberg/claude-plugins

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

Plugin files

plugins/skill-tools/
├── .claude-plugin/plugin.json
├── skills/create-skill/SKILL.md
├── skills/create-slash-command/SKILL.md
├── skills/create-subagent/SKILL.md
├── skills/review-skill/SKILL.md
├── skills/review-slash-command/SKILL.md
└── skills/validate-dual-harness-skill/SKILL.md

Included Skills6

create-skillskills/create-skill/SKILL.md

Create a new skill end-to-end: scaffold, review against best practices, self-heal, deliver in one pass.

create-slash-commandskills/create-slash-command/SKILL.md

Create a new Claude command with proper structure and documentation

create-subagentskills/create-subagent/SKILL.md

Create a new Claude subagent with best practices and proper configuration

review-skillskills/review-skill/SKILL.md

Review a skill for improvement opportunities against best practices

review-slash-commandskills/review-slash-command/SKILL.md

Review a slash command for opportunities to split into subagents

validate-dual-harness-skillskills/validate-dual-harness-skill/SKILL.md

Validate new or edited plugin skills against Claude Code and Codex discovery, invocation, metadata, path, permission, and runtime contracts

Plugin manifests1

plugins/skill-tools/.claude-plugin/plugin.json
{
  "name": "skill-tools",
  "description": "Skills for creating and reviewing Claude Code extensions and validating shared skills under Claude Code and Codex.",
  "version": "1.3.5",
  "author": {
    "name": "JT Sternberg",
    "url": "https://github.com/jtsternberg"
  }
}

For maintainers

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

[skill-tools on Agent Plugins Marketplace](https://pluginsmp.com/plugins/skill-tools)