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 str...