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igmarin/rails-agent-skills

Curated library of 28 atomic skills and 9 personas for Ruby on Rails development. Organized by category: testing, code-quality, engines, infrastructure, api, context, and personas. Covers code review, architecture, security, testing (RSpec), engines, Hotwire, and TDD automation. Shared Ruby skills (YARD docs, DDD, service objects) have moved to ruby-core-skills.

93

1.16x
Quality

95%

Does it follow best practices?

Impact

93%

1.16x

Average score across 28 eval scenarios

SecuritybySnyk

Advisory

Suggest reviewing before use

Overview
Quality
Evals
Security
Files

criteria.jsonevals/scenario-19/

{
  "context": "Checks whether the final artifact follows the load-context instructions from the published Rails Agent Skills plugin.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "instruction-1",
      "description": "The submitted artifact follows this skill instruction: Load minimum context before any code, spec, or PRD in an existing Rails codebase. A fifteen-second read of `db/schema.rb`, `config/routes.rb`, and one neighbor saves a full retry.",
      "max_score": 12
    },
    {
      "name": "instruction-2",
      "description": "The submitted artifact follows this skill instruction: **Load baseline Rails context:** Read at minimum:",
      "max_score": 11
    },
    {
      "name": "instruction-3",
      "description": "The submitted artifact follows this skill instruction: **Load one neighbor of each kind:** For each Rails layer touched, open the nearest sibling that already solves a similar problem — a comparable controller, service, spec, factory. Use grep to find: `grep -r \"class.*Controller\" app/controllers`, `grep -r \"class.*Service\" app/services`, etc.",
      "max_score": 11
    },
    {
      "name": "instruction-4",
      "description": "The submitted artifact follows this skill instruction: When asked to load project context, your output `answer.md` MUST follow the template below.",
      "max_score": 11
    },
    {
      "name": "instruction-5",
      "description": "The submitted artifact follows this skill instruction: You MUST explicitly state the **fifteen-second read** principle as a motivating principle before the summary (e.g. \"To ensure a rapid setup and avoid retries, we follow the fifteen-second read principle of schema, routes, and one neighbor before proposing any changes\").",
      "max_score": 11
    },
    {
      "name": "instruction-6",
      "description": "The submitted artifact follows this skill instruction: Load these files only when their specific content is needed:",
      "max_score": 11
    },
    {
      "name": "instruction-7",
      "description": "The submitted artifact follows this skill instruction: **[EXAMPLES.md](EXAMPLES.md)** — Use when you need worked examples showing Context Summary and Confusion Block templates",
      "max_score": 11
    },
    {
      "name": "instruction-8",
      "description": "The submitted artifact follows this skill instruction: **[references/confusion-management.md](references/confusion-management.md)** — Use when you encounter ambiguity or conflicting signals between code layers",
      "max_score": 11
    },
    {
      "name": "instruction-9",
      "description": "The submitted artifact follows this skill instruction: **[references/context-sources.md](references/context-sources.md)** — Use when you need the comprehensive list of context sources by Rails layer beyond the Quick Reference table",
      "max_score": 11
    }
  ]
}

README.md

tile.json