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rails-upgrade

Use when upgrading a Rails application from one version to another, assessing upgrade readiness, planning a multi-hop upgrade path, or investigating breaking changes, deprecation warnings, gem compatibility issues, or config.load_defaults transitions between any Rails versions from 5.2 through the latest release.

72

Quality

87%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

SKILL.md
Quality
Evals
Security

Quality

Content

85%

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

This is a strong, well-structured skill that provides a comprehensive Rails upgrade workflow with excellent validation gates, concrete commands, and clear progressive disclosure to reference files. The actionability and workflow clarity are exemplary, with hard gates preventing common upgrade mistakes. Minor conciseness improvements could be made by trimming the overview paragraph and some explanatory text, but overall the skill is highly effective.

DimensionReasoningScore

Conciseness

The skill is mostly efficient and well-structured, but includes some unnecessary content like the overview paragraph explaining what the skill does (Claude doesn't need this meta-description), and the 'Announce at start' instruction is low-value. The Ruby compatibility table and workflow steps are appropriately dense, though some sections like 'When to Use Dual Boot' include guidance that could be more concise.

2 / 3

Actionability

The skill provides highly concrete, executable guidance throughout: specific URLs for API fetches, exact commands to run (bundle exec rspec, git checkout -b, bundle update rails, bin/rails app:update), specific file paths to check, and a complete report template with placeholders. The workflow steps are copy-paste actionable with clear tool usage (Grep, Glob, Read, WebFetch).

3 / 3

Workflow Clarity

Excellent multi-step workflow with explicit HARD GATE validation checkpoints at Steps 1 (test suite must pass), 4 (load_defaults verification), and 6 (user approval before changes). Clear sequencing with numbered steps, feedback loops (run tests → fix → rerun), and explicit stop conditions. The multi-step upgrade section reinforces sequential validation between hops.

3 / 3

Progressive Disclosure

The SKILL.md serves as a clear overview/workflow document with well-signaled one-level-deep references to 8 supporting files (references/*.md, scripts/*.sh, and a cross-referenced skill). The reference files table at the end provides clear navigation with descriptions. Content is appropriately split — detection patterns, breaking changes, and gem compatibility are in separate reference files rather than inline.

3 / 3

Total

11

/

12

Passed

Description

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 strong skill description with excellent trigger term coverage and completeness, clearly specifying when Claude should select it. Its main weakness is that the capabilities lean slightly toward categories of concerns rather than concrete actions/outputs. The explicit 'Use when' opening and Rails-upgrade-specific terminology make it highly functional for skill selection.

Suggestions

Add concrete output-oriented actions such as 'generates upgrade checklists', 'identifies incompatible gems', or 'produces step-by-step migration plans' to strengthen specificity.

DimensionReasoningScore

Specificity

The description names the domain (Rails upgrades) and mentions several relevant actions like 'assessing upgrade readiness', 'planning a multi-hop upgrade path', and 'investigating breaking changes', but these read more like categories of concerns than concrete discrete actions. It doesn't specify outputs or deliverables (e.g., 'generates upgrade checklists', 'identifies incompatible gems').

2 / 3

Completeness

The description opens with an explicit 'Use when' clause that clearly answers both what (upgrading Rails, assessing readiness, planning upgrade paths, investigating breaking changes/deprecations/gem compatibility/config.load_defaults) and when (upgrading from one version to another, versions 5.2 through latest). Both dimensions are explicitly addressed.

3 / 3

Trigger Term Quality

Excellent coverage of natural terms a user would say: 'upgrading a Rails application', 'upgrade readiness', 'breaking changes', 'deprecation warnings', 'gem compatibility', 'config.load_defaults', and specific version references ('5.2 through the latest release'). These are highly natural phrases developers would use when seeking upgrade help.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive — it targets a very specific niche (Rails version upgrades) with precise triggers like 'multi-hop upgrade path', 'config.load_defaults', 'gem compatibility', and specific version ranges. This is unlikely to conflict with general Ruby, Rails development, or other framework skills.

3 / 3

Total

11

/

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.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
lucianghinda/superpowers-ruby
Reviewed

Table of Contents

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