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Validate plugin structure and manifests against marketplace requirements
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Read SKILL.md and any companion files shown by SkillsMP before deciding whether to install.
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npx skills add https://github.com/tmchow/tmc-marketplace --skill validate-pluginThe command stays on one line. Scroll horizontally to inspect it before copying.
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Review PRDs, brainstorm docs, tech plans, design docs, specs, or any planning document for issues. This skill should be used whenever the user wants feedback, critique, or a quality check on an existing planning or requirements document — even if they don't use the word "review." Common triggers include: "review the plan", "check the PRD", "critique my tech plan", "what's wrong with this plan", "poke holes in the requirements", "is this plan solid", "take a look at this spec", "give feedback on the brainstorm", or pointing to a doc file and asking if anything is off. Also triggers after writing a PRD or tech plan (to review what was just created), or when invoked by brainstorming or tech-planning skills. Do NOT trigger for code review (PRs, diffs, source files), writing/creating new plans, debugging, or reviewing non-planning documents (READMEs, CLAUDE.md, test coverage).
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Showing SKILL.md
Based on SOC occupation classification
| name | validate-plugin |
| description | Validate plugin structure and manifests against marketplace requirements |
| user-invocable | true |
Validate a plugin meets marketplace requirements before publishing.
/validate-plugin <plugin-name>
Or validate all plugins:
/validate-plugin --all
# Check required files exist
ls plugins/<plugin-name>/.claude-plugin/plugin.json
ls plugins/<plugin-name>/README.md
ls plugins/<plugin-name>/skills/ # At least skills/ or agents/ must exist
Required fields:
name - must match directory nameversion - semver format (e.g., "0.1.0")description - non-empty stringauthor.name - non-empty stringskills - path to skills directory (if skills exist)agents - path to agents directory (if agents exist)# Validate JSON syntax
cat plugins/<plugin-name>/.claude-plugin/plugin.json | jq .
For each plugins/<plugin-name>/skills/*/SKILL.md:
Required frontmatter:
---
name: skill-name # Required
description: ... # Required - when Claude should use this
---
Optional frontmatter:
disable-model-invocation: true # User-only skill
user-invocable: false # Claude-only skill
Check: Frontmatter must be valid YAML between --- markers
For each plugins/<plugin-name>/agents/*/AGENT.md:
Required frontmatter:
---
name: agent-name # Required
description: ... # Required - when Claude should use this agent
---
Check .claude-plugin/marketplace.json contains entry:
{
"plugins": [
{
"name": "<plugin-name>",
"source": "./plugins/<plugin-name>",
"description": "...",
"version": "..."
}
]
}
Verify no commands/ directory exists (commands merged into skills in Claude Code 2.1.3+)
Validating plugin: <plugin-name>
[PASS] Plugin structure valid
[PASS] plugin.json valid
[PASS] 2 skills validated
[WARN] No agents defined (optional)
[PASS] Marketplace entry found
[PASS] No deprecated commands
Result: VALID (5 passed, 1 warning, 0 errors)
Or if errors:
[FAIL] plugin.json missing required field: description
[FAIL] skills/my-skill/SKILL.md missing frontmatter
Result: INVALID (3 passed, 0 warnings, 2 errors)