AGENTS.md

Project Identity

Project Name: ratatui_ruby-tea

Description: Part of the RatatuiRuby ecosystem.

1. Standards

STRICT REQUIREMENTS

• Every file MUST begin with an SPDX-compliant header. Use LGPL-3.0-or-later for code; CC-BY-SA-4.0 for documentation. reuse annotate can help you generate the header. For Ruby files, wrap SPDX comments in – / ++ to hide them from RDoc output.

• Every line of Ruby MUST be covered by tests that would stand up to mutation testing.

• Tests must be meaningful and verify specific behavior or rendering output; simply verifying that code “doesn’t crash” is insufficient and unacceptable.

• Pre-commit: Use agent_rake to ensure commit-readiness. See Tools for detailed instructions.

• Git Pager: ALWAYS set PAGER=cat for ALL git commands (e.g., PAGER=cat git diff). This is mandatory.

Tools

• NEVER run bundle exec rake directly. NEVER run bundle exec ruby -Ilib:test ... directly.

• ALWAYS use agent_rake (provided by the ratatui_ruby-devtools gem) for running tests, linting, or checking compilation.

• Usage:

  • Runs default task (compile + test + lint): agent_rake

  • Runs specific task: agent_rake test:ruby (for example)

• Setup: bin/setup must handle Bundler dependencies.

• Git: ALWAYS set PAGER=cat with git. THIS IS CRITICAL!

Ruby Standards

• Use Data.define for all value objects (Ruby 3.2+).

• Define types in .rbs files. Don’t use untyped just because it’s easy; be comprehensive and accurate.

• Every public Ruby class/method must be documented for humans in RDoc.

2. Committing

• Who commits: DON’T stage (DON’T git add) unless explicitly instructed. DON’T commit unless explicitly instructed. DO suggest a commit message when you finish.

• Format:

  • Format: Use Conventional Commits.

  • Body: Explanation if necessary (wrap at 72 chars).

    • DON’T list the files changed or the edits made in the body.

    • DON’T use markdown syntax (no backticks, no bolding, no lists, no links).

3. Definition of Done (DoD)

Before considering a task complete:

1. Default Rake Task Passes: Run agent_rake (no args). Confirm it passes with ZERO errors.

2. Documentation Updated: If public APIs changed, update relevant docs.

3. Changelog Updated: If public APIs changed, update CHANGELOG.md’s Unreleased section.

4. Commit Message Suggested: Include a suggested commit message block.