Use when preparing a release, updating gemspec, writing changelog, handling deprecations, setting semantic version, planning upgrade notes, migration guide, or shipping a Rails engine as a gem. Trigger words: version bump, changelog, deprecation, gemspec, upgrade, migration guide, release.
79
73%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./rails-engine-release/SKILL.mdQuality
Discovery
89%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a well-structured skill description with strong trigger term coverage and clear 'Use when' guidance. The explicit trigger words list is a nice touch for disambiguation. The main weakness is that the specific actions could be slightly more concrete (e.g., 'generates CHANGELOG.md entries' rather than just 'writing changelog'), but overall it performs well across all dimensions.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description names the domain (Rails engine gem releases) and lists several actions like 'updating gemspec', 'writing changelog', 'handling deprecations', 'setting semantic version', 'planning upgrade notes', 'migration guide', but these are more like task areas than deeply concrete actions (e.g., no specifics about what format or structure). | 2 / 3 |
Completeness | The description explicitly answers both 'what' (preparing releases, updating gemspec, writing changelog, handling deprecations, etc.) and 'when' with a clear 'Use when...' clause and explicit trigger words list. | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural trigger terms that users would actually say: 'version bump', 'changelog', 'deprecation', 'gemspec', 'upgrade', 'migration guide', 'release'. These are all terms a developer would naturally use when needing this skill. | 3 / 3 |
Distinctiveness Conflict Risk | The combination of Rails engine, gemspec, semantic versioning, changelog, and release preparation creates a very specific niche that is unlikely to conflict with other skills. The trigger terms are domain-specific enough to avoid false matches. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a well-structured process-oriented skill that covers the key concerns of releasing a Rails engine as a gem. Its strengths are clear organization, good examples of changelog and upgrade notes, and appropriate cross-references to related skills. Its weaknesses are redundancy across overlapping sections (Common Mistakes, Red Flags, Review Triggers), lack of executable commands in the workflow, and missing explicit validation/verification steps like running tests or doing a dry-run gem push.
Suggestions
Consolidate 'Common Mistakes', 'Red Flags', and 'Review Triggers' into a single section to reduce redundancy—they share significant overlap around missing upgrade notes, changelog quality, and deprecation handling.
Add concrete executable commands to the Release Order workflow (e.g., `bundle exec rake spec`, `gem build my_engine.gemspec`, `gem push --dry-run`) and integrate the checklist as validation checkpoints within the workflow steps.
Include an explicit verification/feedback loop in the workflow, such as 'Run full test suite → if failures, fix and re-run → only proceed when green' and 'Dry-run gem push → verify contents → publish'.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient and avoids explaining basic concepts Claude already knows, but there's some redundancy across sections (e.g., 'Common Mistakes', 'Red Flags', and 'Review Triggers' overlap significantly in content about missing upgrade notes and changelog quality). The tables and checklists are well-structured but could be consolidated. | 2 / 3 |
Actionability | The skill provides concrete guidance through checklists, examples of changelog entries, and upgrade notes, which are copy-paste ready. However, it lacks executable commands (e.g., actual gem build/push commands, how to update the version constant, specific file paths) and is more of a process guide than a step-by-step executable workflow. | 2 / 3 |
Workflow Clarity | The 'Release Order' section provides a clear sequence of 6 steps, and the HARD-GATE is a good validation checkpoint. However, there are no explicit validation/verification steps within the workflow (e.g., run tests, dry-run gem push, verify gem installs correctly), and no feedback loops for error recovery. The release checklist is separate from the workflow rather than integrated. | 2 / 3 |
Progressive Disclosure | The content is well-organized with clear sections, a quick reference table at the top, and an Integration table pointing to related skills. The length is appropriate for a SKILL.md overview, and the structure allows easy scanning with tables, checklists, and examples clearly delineated. | 3 / 3 |
Total | 9 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
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