How do I install the Validate Plugin skill?

Run npx skillmds@latest add jeremylongshore/validate-plugin-2 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Validate Plugin safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Validate Plugin?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Validate Plugin free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Validate Plugin?

jeremylongshore (@jeremylongshore) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Validate Plugin by jeremylongshore — Agent Skill

Name: Validate Plugin
Rating: 4.2 (5 reviews)
Author: jeremylongshore

Validate Plugin

'Validate a Claude Code plugin directory against the official Anthropic spec and Intent Solutions enterprise standard. Runs structural validation (plugin.json fields, file references, permissions) and content validation (SKILL.md grading, command/agent frontmatter). Use when building a new plugin, preparing for marketplace submission, or auditing existing plugins. Trigger with "validate this plugin", "check plugin structure", "grade my plugin", "/validate-plugin". '

File contents

Validate Plugin

Full plugin directory validator combining structural checks and content grading.

Overview

Runs the complete validation pipeline against any plugin directory:

validate-all-plugins.sh for structural validation (plugin.json, file refs, permissions)
validate-skills-schema.py for content validation with 100-point grading

Prerequisites

Python 3 with pyyaml installed
jq available on PATH
Run from the claude-code-plugins repository root

Instructions

Identify the target plugin directory (must contain .claude-plugin/plugin.json)

Run structural validation:

./scripts/validate-all-plugins.sh <plugin-directory>

Run content validation on any SKILL.md files found:

python3 scripts/validate-skills-schema.py --verbose <path-to-SKILL.md>

If the plugin has commands or agents, validate those too:
```
python3 scripts/validate-skills-schema.py --verbose
```
Report the combined results with per-skill 100-point grades

Output

Present results in this format:

Structural Validation:

plugin.json: PASS/FAIL (list any invalid fields)
File references: PASS/FAIL
Script permissions: PASS/FAIL

Content Validation (per SKILL.md):

Grade: A-F (score/100)
Errors: list
Warnings: list

Summary:

Total errors / warnings
Overall verdict: PASS or FAIL

Error Handling

If plugin directory doesn't exist, report and exit
If plugin.json is missing, report as structural failure
If Python or jq not available, report as environment issue
Continue validating remaining files even if one fails

Examples

Example 1: Validate a specific plugin

/validate-plugin plugins/skill-enhancers/skill-creator/

Example 2: Validate current directory

validate this plugin

Resources

Source: jeremylongshore/claude-code-plugins-plus-skills → skills/.curated/validate-plugin/SKILL.md

Also appears in: jeremylongshore/claude-code-plugins-plus-skills/plugins/skill-enhancers/validate-plugin/skills/validate-plugin/SKILL.md

---name: validate-plugin-2description: 'Validate a Claude Code plugin directory against the official Anthropic spec and Intent Solutions enterprise standard. Runs structural validation (plugin.json fields, file references, permissions) and content validation (SKILL.md grading, command/agent frontmatter). Use when building a new plugin, preparing for marketplace submission, or auditing existing plugins. Trigger with "validate this plugin", "check plugin structure", "grade my plugin", "/validate-plugin". '--- # Validate Plugin Full plugin directory validator combining structural checks and content grading. ## Overview Runs the complete validation pipeline against any plugin directory: 1. `validate-all-plugins.sh` for structural validation (plugin.json, file refs, permissions) 2. `validate-skills-schema.py` for content validation with 100-point grading ## Prerequisites - Python 3 with `pyyaml` installed - `jq` available on PATH - Run from the claude-code-plugins repository root ## Instructions 1. Identify the target plugin directory (must contain `.claude-plugin/plugin.json`) 2. Run structural validation: ```bash ./scripts/validate-all-plugins.sh <plugin-directory> ``` 3. Run content validation on any SKILL.md files found: ```bash python3 scripts/validate-skills-schema.py --verbose <path-to-SKILL.md> ``` 4. If the plugin has commands or agents, validate those too: ```bash python3 scripts/validate-skills-schema.py --verbose ``` 5. Report the combined results with per-skill 100-point grades ## Output Present results in this format: **Structural Validation:** - plugin.json: PASS/FAIL (list any invalid fields) - File references: PASS/FAIL - Script permissions: PASS/FAIL **Content Validation (per SKILL.md):** - Grade: A-F (score/100) - Errors: list - Warnings: list **Summary:** - Total errors / warnings - Overall verdict: PASS or FAIL ## Error Handling - If plugin directory doesn't exist, report and exit - If plugin.json is missing, report as structural failure - If Python or jq not available, report as environment issue - Continue validating remaining files even if one fails ## Examples **Example 1: Validate a specific plugin** ``` /validate-plugin plugins/skill-enhancers/skill-creator/ ``` **Example 2: Validate current directory** ``` validate this plugin ``` ## Resources - [Anthropic Plugins Reference](https://code.claude.com/docs/en/plugins-reference) - [Anthropic Skills Spec](https://code.claude.com/docs/en/slash-commands) --- **Source:** [`jeremylongshore/claude-code-plugins-plus-skills`](https://github.com/jeremylongshore/claude-code-plugins-plus-skills) → `skills/.curated/validate-plugin/SKILL.md` **Also appears in:** `jeremylongshore/claude-code-plugins-plus-skills/plugins/skill-enhancers/validate-plugin/skills/validate-plugin/SKILL.md`

Frequently asked questions

Validate Plugin

File contents

Validate Plugin

Overview

Prerequisites

Instructions

Output

Error Handling

Examples

Resources

Related skills

Frequently asked questions

How do I install the Validate Plugin skill?

What does the Validate Plugin skill do?

Is Validate Plugin safe to use?

Which AI agents work with Validate Plugin?

Is Validate Plugin free to use?

Who published Validate Plugin?