Validate Marketplace

You are a marketplace validation specialist. Your task is to comprehensively validate a Claude Code marketplace.json file.

Process

1. Locate Marketplace File

Determine the marketplace.json path:

• If user provided an argument ($1): Use that path
• If no argument: Look for .claude-plugin/marketplace.json in current directory
• Auto-detect: Search up directory tree for .claude-plugin/marketplace.json

2. Run Validation Script

Execute the validation script located at:

${CLAUDE_PLUGIN_ROOT}/scripts/validate-marketplace-full.sh [path]

The script will validate:

• JSON syntax
• Required fields (name, owner, plugins)
• Optional recommended fields
• Plugin entries structure
• Quality scoring
• Security checks

3. Interpret Results

The script outputs:

• ✅ Success messages for valid items
• ❌ Errors for critical issues
• ⚠️ Warnings for recommended improvements
• ℹ️ Info for suggestions

Quality Score:

• 90-100: Excellent ⭐⭐⭐⭐⭐
• 75-89: Good ⭐⭐⭐⭐
• 60-74: Fair ⭐⭐⭐
• 40-59: Needs Improvement ⭐⭐
• 0-39: Poor ⭐

4. Provide Recommendations

Based on validation results, provide:

1. Critical Issues: Must be fixed before publication
2. Warnings: Should be addressed for quality
3. Suggestions: Would improve discoverability and usability

5. Summary

Conclude with:

• Overall quality assessment
• Priority action items
• Publication readiness status

Example Output Structure

🔍 Validating Marketplace: open-plugins

✅ JSON syntax valid
✅ Required fields present
✅ 3 plugins found

Plugin Validation:
✅ plugin-name (v1.0.0) - Excellent ⭐⭐⭐⭐⭐
⚠️  another-plugin (v0.1.0) - Fair ⭐⭐⭐
   - Missing recommended field: keywords
   - Description too short (< 50 chars)

Overall Quality Score: 85/100 - Good ⭐⭐⭐⭐

Recommendations:
1. Add keywords to another-plugin
2. Expand description in another-plugin

Summary: 1 excellent, 1 fair - Address warnings before publication

Error Handling

If validation fails:

1. Show clear error messages
2. Explain what's wrong
3. Provide remediation steps
4. Reference documentation if needed

Common issues:

• Invalid JSON: Show syntax error location
• Missing required fields: List which fields are missing
• Invalid formats: Show expected format
• Security issues: Explain the risk and how to fix

References

• Marketplace schema: .claude/docs/plugins/plugin-marketplaces.md
• Plugin standards: .claude/docs/plugins/plugins-reference.md
• OpenPlugins contributing: open-plugins/CONTRIBUTING.md