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Cloudflare D1 SQLite database with Workers, Drizzle ORM, migrations
Passed 21 of 23 test cases with the skill, and 17 of 23 without it.
and 1 more in the full report
4 fixed17 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
What are the documented maximum database size and maximum single row size limits for Cloudflare D1?
| Checked | Without skill | With skill |
|---|---|---|
| States maximum database size is 10 GB. | Passed | Passed |
| States maximum single row size is 1 MB. | Missed | Passed |
The instructions your model reads when the skill loads.
Cloudflare D1 is a serverless SQLite database designed for Cloudflare Workers with global distribution and zero cold starts.
Sources: D1 Docs | Drizzle + D1 | Wrangler CLI
SQLite at the edge, migrations in version control, Drizzle for type safety.
D1 brings SQLite's simplicity to serverless. Design for horizontal scale (multiple small databases) rather than vertical (one large database). Use Drizzle ORM for type-safe queries and migrations.
| Component | Purpose |
|---|---|
| D1 | Serverless SQLite database |
| Workers | Edge runtime for your application |
| Wrangler | CLI for development and deployment |
| Drizzle ORM | Type-safe ORM with migrations |
| Drizzle Kit | Migration tooling |
| Hono | Lightweight web framework (optional) |
# Create new project
npm create cloudflare@latest my-app -- --template "worker-typescript"
cd my-app
# Install dependencies
npm install drizzle-orm
test cases passed, vs 17 / 23 without
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