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Get Started Free →When building applications on Cloudflare Workers or with frameworks that deploy to Cloudflare Workers, strongly prefer retrieval and fetching documentation over training data.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | -36% | 0% |
| case-06 | ✗→✓ | ▲ Improved | -51% | 0% |
| case-02 | ✓→✓ | ＝ Same ✓ | -14% | 0% |
| case-03 | ✓→✓ | ＝ Same ✓ | 20% | 0% |
| case-04 | ✓→✓ | ＝ Same ✓ | -35% | 0% |
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 Your knowledge of Cloudflare Workers APIs and limits may be outdated.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.
https://docs.mcp.cloudflare.com/mcpFor all limits and quotas, retrieve from the product's /platform/limits/ page.
| 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.
If you encounter Dynamic require of "X" is not supported or missing Node.js APIs:
jsonc{ "compatibility_flags": ["nodejs_compat"], "compatibility_date": "YYYY-MM-DD" // Use today's date }
Docs: https://developers.cloudflare.com/workers/runtime-apis/nodejs/
/workers/platform/limits/Retrieve API references and limits from: /kv/ · /r2/ · /d1/ · /durable-objects/ · /queues/ · /vectorize/ · /workers-ai/ · /agents/
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