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software-engineer

Development
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Development workflows for Rails applications. Use when implementing features, fixing bugs, or making code changes. Currently provides the TDD Red-Green implementation workflow.

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How to use this skill

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  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
Prompt to paste
I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/software-engineer/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/software-engineer/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Software Engineer

Overview

This skill provides development workflows for Ruby on Rails applications. It defines methodologies for different types of engineering work.

Workflows

Implementation Workflow (TDD Red-Green)

When implementing features or fixing bugs, follow the Test-Driven Development cycle.

RED Phase

Write failing tests FIRST:

  • Use fixtures for test data (check test/fixtures/ for existing patterns)
  • Refer to rails-basecamp-engineer skill references for test patterns
  • Run bin/ci to confirm tests fail for the RIGHT reason
  • Do NOT proceed until you have a failing test

GREEN Phase

Write the MINIMAL code to make tests pass:

  • Refer to rails-basecamp-engineer skill references for implementation patterns
  • Run bin/ci - do NOT proceed until all tests pass
  • Avoid over-engineering; implement only what's needed for the test

Error Handling

If bin/ci fails:

  • Read the error output carefully
  • Fix the failing tests or implementation
  • Do NOT proceed to the next phase until CI is green
  • If stuck, explain the issue and ask for guidance

If you discover additional work needed:

  • Create a new BD issue: bd create "Discovered issue" -t task -p 2 --deps discovered-from:<current-ticket> --json
  • Continue with current task unless the discovery is blocking

Completion Criteria

  • All tests pass (bin/ci or bin/rails test)
  • Implementation is minimal and focused
  • Code follows patterns from rails-basecamp-engineer references