validate-skillmd
Validate a SKILL.md file against the four-tier validation system: Tier 0 (locate), Tier 1 (standard or marketplace grading per the IS 100-point rubric), Tier 2 (static production gate — allowed-tools accuracy, auth protocol, dead code, tool safety, orchestration bounds), and Tier 3 (JRig 7-layer behavioral eval, opt-in via --thorough). Use when creating a new skill, checking skill quality, preparing for marketplace submission, running deep quality analysis, or gating a skill for production. Trigger with "validate this skill", "grade my skill", "deep eval", "check SKILL.md", "validate thoroug
npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill validate-skillmd --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Validate SKILL.md Grade any SKILL.md file against the Intent Solutions rubric (validator v7.0 / schema 3.3.1). Four-tier validation: **Tier 0** (locate), **Tier 1** (standard or marketplace grading), **Tier 2** (static production gate), **Tier 3** (JRig behavioral eval — opt-in). Source of truth: `/skill-creator` validation workflow + `claude-code-plugins-plus-skills/000-docs/SCHEMA_CHANGELOG.md
What does the validate-skillmd skill do?
Validate a SKILL.md file against the four-tier validation system: Tier 0 (locate), Tier 1 (standard or marketplace grading per the IS 100-point rubric), Tier 2 (static production gate — allowed-tools accuracy, auth protocol, dead code, tool safety, orchestration bounds), and Tier 3 (JRig 7-layer behavioral eval, opt-in via --thorough). Use when creating a new skill, checking skill quality, preparing for marketplace submission, running deep quality analysis, or gating a skill for production. Trigger with "validate this skill", "grade my skill", "deep eval", "check SKILL.md", "validate thoroug
How do I install it?
Run `npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill validate-skillmd --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From jeremylongshore/claude-code-plugins-plus-skills, a repository with 2,596 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.