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igmarin/rails-agent-skills

Curated library of 41 public AI agent skills for Ruby on Rails development. Organized by category: planning, testing, code-quality, ddd, engines, infrastructure, api, patterns, context, and orchestration. Covers code review, architecture, security, testing (RSpec), engines, service objects, DDD patterns, and TDD automation. Repository workflows remain documented in GitHub but are intentionally excluded from the Tessl tile.

95

1.77x
Quality

93%

Does it follow best practices?

Impact

96%

1.77x

Average score across 41 eval scenarios

SecuritybySnyk

Passed

No known issues

Overview
Quality
Evals
Security
Files

criteria.jsonevals/scenario-41/

{
  "context": "Checks whether the final artifact follows the write-tests instructions from the published Rails Agent Skills tile.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "instruction-1",
      "description": "The submitted artifact follows this skill instruction: Use this skill when the task is to write, review, or clean up RSpec tests.",
      "max_score": 10
    },
    {
      "name": "instruction-2",
      "description": "The submitted artifact follows this skill instruction: **Core principle:** Prefer behavioral confidence over implementation coupling. Good specs are readable, deterministic, and cheap to maintain.",
      "max_score": 10
    },
    {
      "name": "instruction-3",
      "description": "The submitted artifact follows this skill instruction: Run spec and verify it fails",
      "max_score": 10
    },
    {
      "name": "instruction-4",
      "description": "The submitted artifact follows this skill instruction: Run spec and verify it passes",
      "max_score": 10
    },
    {
      "name": "instruction-5",
      "description": "The submitted artifact follows this skill instruction: **Write the failing spec** — pick the smallest spec type that exercises the intended behaviour (model > service > request > system). See table below for guidance.",
      "max_score": 10
    },
    {
      "name": "instruction-6",
      "description": "The submitted artifact follows this skill instruction: **Run it and confirm the failure message** — show the concrete RED failure class/message for the first spec. Do not leave this as a placeholder template and do not use illustrative `e.g.` failure examples in the final artifact.",
      "max_score": 10
    },
    {
      "name": "instruction-7",
      "description": "The submitted artifact follows this skill instruction: **Verify** — run the full relevant spec file, then the suite, before committing.",
      "max_score": 10
    },
    {
      "name": "instruction-8",
      "description": "The submitted artifact follows this skill instruction: Load these files only when their specific content is needed:",
      "max_score": 10
    },
    {
      "name": "instruction-9",
      "description": "The submitted artifact follows this skill instruction: **[assets/tdd_proof_checklist.md](assets/tdd_proof_checklist.md)** — Use when the task involves new behavior and the final answer must show RED/GREEN proof.",
      "max_score": 10
    },
    {
      "name": "instruction-10",
      "description": "The submitted artifact follows this skill instruction: When asked to write or review RSpec specs, your output MUST satisfy each rule below. Each is graded independently — one violation drops the whole check.",
      "max_score": 10
    }
  ]
}

README.md

server.json

tile.json