ruby-version

Verify what Ruby versions actually exist and install a specific Ruby via rbenv. Use BEFORE asserting that any Ruby version does or doesn't exist (e.g., "Ruby 4.0 isn't out yet", "the latest Ruby is 3.x", "Ruby X.Y.Z doesn't exist"). Also use when the user asks "what's the latest Ruby", "is Ruby X out", "does Ruby X.Y exist", "install Ruby", "switch to Ruby X", "what Ruby is installed", or mentions a specific Ruby version you're unsure about. Claude's training data may be out of date — run `check.sh` first.

Quality

96%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

100%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A model short-form skill: concise, fully executable, with a mandatory verification-first workflow and validation/feedback on the install path. Structure is appropriately split across the two bundled scripts with clear navigation.

Dimension	Reasoning	Score
Conciseness	Lean and efficient: assumes Claude knows Ruby/rbenv, every section earns its place, and operational guidance like "How to read the output" is tight rather than padded with concept explanations.	5 / 5
Actionability	Fully executable commands with examples — `bash skills/ruby-version/scripts/check.sh` and `bash skills/ruby-version/scripts/install.sh 3.4.2` — plus concrete next-step suggestions (rbenv global/local).	5 / 5
Workflow Clarity	Clear mandatory sequence (run check.sh before asserting), and install.sh validates the version exists in ruby-build's list first with a remediation hint (upgrade ruby-build) on failure — an explicit validation checkpoint with error recovery.	5 / 5
Progressive Disclosure	Under 50 lines with well-organized sections (When to invoke, Scripts, Assumptions, Anti-patterns) and two real one-level-deep script bundle files clearly referenced by path.	5 / 5
	Total	20 / 20 Passed

Description

95%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A high-quality description: concrete actions, third-person voice, exhaustive natural trigger phrases, and an explicit use-when clause. Only slight room to expand the action list beyond verify/install for full specificity coverage.

Dimension	Reasoning	Score
Specificity	Names the domain and two concrete actions — "Verify what Ruby versions actually exist" and "install a specific Ruby via rbenv" — with minor gaps in coverage rather than a comprehensive action list.	4 / 5
Completeness	Clearly states what it does (verify existence + install via rbenv) and gives explicit "Use BEFORE..." / "Also use when..." clauses with concrete trigger phrases.	5 / 5
Trigger Term Quality	Comprehensive natural-language triggers users would actually say: "latest Ruby", "is Ruby X out", "install Ruby", "switch to Ruby X", "what Ruby is installed", plus version-number variations.	5 / 5
Distinctiveness Conflict Risk	Narrow, well-scoped niche (Ruby release verification + rbenv install) with distinctive triggers unlikely to fire for unrelated skills.	5 / 5
	Total	19 / 20 Passed

Validation

87%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 14 / 16 Passed

Validation for skill structure

Criteria	Description	Result
metadata_version	'metadata.version' is missing	Warning
metadata_field	'metadata' should map string keys to string values	Warning

	Total	14 / 16 Passed

Repository: RoleModel/rolemodel-skills
Path: skills/ruby-version/SKILL.md
Commit: cb80143

Reviewed: 6 days ago

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