Drizzle ORM Complete Documentation

**Judgement:** This skill is a strong, high-utility embedded reference for Drizzle ORM, well-suited for most development and troubleshooting questions involving Drizzle in TypeScript projects. **What it does well** - Provides broad, structured coverage of Drizzle ORM: getting started, schema design, column types, relations, migrations, queries, and transactions. - Includes concrete, provider-specific connection docs for modern platforms (Neon, Supabase, PlanetScale, Turso, Cloudflare D1, etc.), enabling precise setup help. - Contains higher-level guides and tutorials (performance, testing, production patterns), allowing not just “how” but also some “why” in answers. - Fully local/embedded markdown, so it works offline and avoids network latency or link rot. **Key risks / limitations** - **Version drift:** The documentation may not always match the exact Drizzle ORM version the user is running; new or deprecated APIs might not be covered or may differ slightly. - **Ecosystem boundaries:** It focuses on Drizzle itself; comparisons to other ORMs, database-agnostic patterns, or non-Drizzle tooling will rely on the base model rather than this skill. - **Operational caveats:** While migrations and schema changes are documented, real-world operational nuances (rollbacks in complex prod setups, cross-region constraints, etc.) may be more limited or context-dependent. **Recommended scenarios** - Users explicitly working with **Drizzle ORM** who need accurate, structured help on schemas, relations, queries, and migrations. - Setting up or debugging connections to **PostgreSQL/MySQL/SQLite** or specific services like Neon, Supabase, PlanetScale, Turso, or Cloudflare D1. - Questions about **type-safe database access** in TypeScript, including validation with Zod/Valibot and integration into frameworks like Next.js, SvelteKit, or Astro. - Providing step-by-step guidance for common Drizzle tasks (initial setup, adding relations, writing queries, running migrations, and adopting best practices).