create d1 tutorial

d1-tutorial/AGENTS.md

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+# Cloudflare Workers
+
+STOP. Your knowledge of Cloudflare Workers APIs and limits may be outdated. Always retrieve current documentation before any Workers, KV, R2, D1, Durable Objects, Queues, Vectorize, AI, or Agents SDK task.
+
+## Docs
+
+- https://developers.cloudflare.com/workers/
+- MCP: `https://docs.mcp.cloudflare.com/mcp`
+
+For all limits and quotas, retrieve from the product's `/platform/limits/` page. eg. `/workers/platform/limits`
+
+## Commands
+
+| Command | Purpose |
+|---------|---------|
+| `npx wrangler dev` | Local development |
+| `npx wrangler deploy` | Deploy to Cloudflare |
+| `npx wrangler types` | Generate TypeScript types |
+
+Run `wrangler types` after changing bindings in wrangler.jsonc.
+
+## Node.js Compatibility
+
+https://developers.cloudflare.com/workers/runtime-apis/nodejs/
+
+## Errors
+
+- **Error 1102** (CPU/Memory exceeded): Retrieve limits from `/workers/platform/limits/`
+- **All errors**: https://developers.cloudflare.com/workers/observability/errors/
+
+## Product Docs
+
+Retrieve API references and limits from:
+`/kv/` · `/r2/` · `/d1/` · `/durable-objects/` · `/queues/` · `/vectorize/` · `/workers-ai/` · `/agents/`
+
+## Best Practices (conditional)
+
+If the application uses Durable Objects or Workflows, refer to the relevant best practices:
+
+- Durable Objects: https://developers.cloudflare.com/durable-objects/best-practices/rules-of-durable-objects/
+- Workflows: https://developers.cloudflare.com/workflows/build/rules-of-workflows/