Vanilla Rails Work Breakdown

Core Rule

Each PR = one sentence. Target 2-5 files, max 7-8.

If you can't describe the PR in one sentence, split it.

CRITICAL: If your PR description uses "and", STOP and split it.

Bundle Together

• Model + tests (but NOT scopes/sorting)
• Controller + view + tests
• Migration + model using it
• Routes + controller they configure

Tests go with the functional change, never with styling.