# Cloudflare Workers Muse API Evaluation

**Category:** Sandboxes
**Score:** 44 (D)

This is the agent-readable Devtool Arena evaluation page for Cloudflare Workers on Muse API.

## Summary

| Metric | Value |
|--------|-------|
| Status | completed |
| Overall score | 44 |
| Grade | D |
| Eval score | 20 |
| Discovery score | 100 |
| Cost | $0.22 |
| Runtime | 2m 15s |
| Tool calls | 16 |
| Errors | 2 |
| Tokens used | 540832 |
| Success | No |

## Agent-Readiness Checklist

| Signal | Evidence |
|--------|----------|
| Context7 | https://context7.com/cloudflare/cloudflare-docs |
| llms.txt | https://developers.cloudflare.com/llms.txt |
| MCP server | https://github.com/cloudflare/mcp-server-cloudflare |
| Typed SDK | https://github.com/cloudflare/cloudflare-typescript |
| OpenAPI | https://www.cloudflare.com/openapi.json |
| Agent skills | https://github.com/cloudflare/workers-sdk/blob/main/AGENTS.md |
| CLI | https://developers.cloudflare.com/workers/wrangler/ |

## Evaluation Prompt

````text

# Task
Using https://developers.cloudflare.com/workers, complete the following task:

Using Cloudflare Workers, build me a script that runs a multi-step computation inside a Cloudflare Workers sandbox:
        
1. Use the Cloudflare Workers Python SDK to create/connect to a sandbox
2. Inside the sandbox, execute the following pipeline:
   a. Install the `sympy` package using pip
   b. Run a Python script that:
      - Computes the 10th Fibonacci number iteratively
      - Uses sympy to check if that number is prime
      - Prints the result as JSON: {"fibonacci_10": <number>, "is_prime": <boolean>}
3. Capture the sandbox execution output and print it to stdout

All computation must run inside the Cloudflare Workers sandbox, not in your local Python process. Do not use subprocess — use the Cloudflare Workers SDK's execution primitives. 

## Execution
After creating the script, run it to verify it works:
```bash
cd /home/daytona/app && python <your_script>.py
```

The script should print output to stdout. If there are errors, debug and fix them until it runs successfully.

````

## Grader Results

| Check | Passed | Weight | Score | Details |
|-------|--------|--------|-------|---------|
| Cost | Yes | 0 | 0 | $0.22 ($0.20–0.40, good) |
| Time | Yes | 0 | 0 | 135s (2–3min, good) |
| Efficiency | Yes | 0 | 0 | 16 tool calls (≤20, acceptable) |
| Found Docs | Yes | 0 | — | Touched docs at developers.cloudflare.com: yes (11 matching tool calls) |
| Zero Errors | No | 0 | — | Tool outputs with errors/tracebacks: 2 |
| Syntax Valid | No | 0 | — | Syntax errors present |
| Created Files | No | 0 | — | Generated files: 0 (need ≥1) |
| Full Execution | No | 0 | — | Method: failed, Exit: 1 |

## Run Artifacts

| Artifact | Value |
|----------|-------|
| Conversation turns | 16 |
| Tool call traces | 16 |
| Generated files | 0 |
| Exit code | 1 |
| Completed at | 2026-10-15T14:59:51.050237+00:00 |

## Related Pages

- [Muse API leaderboard](/leaderboard/muse/api)
- [Compare Muse API companies](/leaderboard/muse/api/compare)
- [Agent Landscape](/leaderboard/discoverability)

Canonical URL: https://devtoolarena.com/muse/api/cloudflare-workers