Validate plugin

Skill jeremylongshore/claude-code-plugins-plus-skills/plugins/skill-enhancers/validate-plugin/skills/validate-plugin

'Validate a Claude Code plugin directory against the official Anthropic specFrom its SKILL.md

Install

npx -y skills add jeremylongshore/claude-code-plugins-plus-skills --skill validate-plugin

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

What its file declares

Copied from the file, not written here

The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

2.8 KB, 468 tokens by cl100k_base, as published. Nobody here has run it

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