What problem does it solve? New features often ship without matching seed data or test factories, leaving the development environment empty and tests unable to build realistic records. This Skill enforces a consistent workflow so every feature gets factories for tests and idempotent seeds for the dev environment. ## Core Features & Use Cases - Factory creation and review: Adds or updates one factory per model with traits covering meaningful states, using FactoryBot (Rails), factory.ex (Phoenix), factory_boy (Django), or TypeScript fixtures (React). - Idempotent seed generation: Writes dev-only seeds guarded by environment checks and find-or-create patterns so repeated runs never duplicate data. - Procfile.dev integration and seed summary: Ensures a setup: entry runs migrations plus seeds, and appends a summary block printing per-model counts and seeded user credentials. - Use Case: After implementing a new invoicing feature in a Rails app, run this Skill to generate the FactoryBot factories, add guarded seed records for each invoice state, wire seeds into Procfile.dev, and verify idempotency by running seeds twice. ## Quick Start Ask the AI to create or review the factories and seeds for the feature you just implemented, following the stack-specific paths and idempotency rules.
