add-seed-data

What problem does it solve?

This Skill prevents slow, brittle development by generating seed data that matches your app’s real data-access layer and avoids duplicate rows or missing foreign keys.

Core Features & Use Cases

• Creates or extends a seed script that generates representative developer fixtures while following the project’s seeding convention (e.g., extending scripts/seed.ts or wiring a new seed script).
• Enforces dependency order so parent entities are created before children to avoid foreign-key failures.
• Guarantees re-runnable behavior via an explicit idempotency strategy such as upsert by natural key or a safe skip/reset approach, so repeated runs don’t double-create data.
• Directs you to the correct DB boundary by requiring seed code to call src/data-access/* functions rather than writing raw SQL/inserts, ensuring seeded rows exercise the same invariants as production logic.
• Adds useful edge-case fixtures (empty fields, long strings, unicode, and tricky date values) to act as a smoke test for the data-access layer and UI flows.

Quick Start

Add seed data for posts in the dev database by telling the skill to generate seed fixtures and an idempotent scripts/seed.ts that calls the appropriate create/update functions in src/data-access.