# webmcpx benchmark: claude-haiku-5-5

Same model, prompt and step limit; one arm reads the page through DOM snapshots, the other only calls the WebMCP tools the page registers. Graded by facts in the answer and page state, never by an LLM. Results per site and per question, never averaged.

### claude-haiku-5-5 (reasoning medium)

- Cloudflare
  - "How many requests per day can my Workers handle on the Cloudflare Workers Free plan before hitting the limit?": without WebMCP 48.6k tokens, 100% solved; with WebMCP 2.7k tokens, 100% solved
  - "What is the largest message I can send to a Cloudflare Queue? I need the per-message size limit.": without WebMCP 25.0k tokens, 100% solved; with WebMCP 2.6k tokens, 100% solved
  - "I'm on the Workers Paid plan. What's the maximum size a single Cloudflare D1 database can grow to?": without WebMCP 23.0k tokens, 100% solved; with WebMCP 2.7k tokens, 100% solved
  - "What is the maximum size of a single value stored in Cloudflare Workers KV?": without WebMCP 20.9k tokens, 100% solved; with WebMCP 2.5k tokens, 100% solved
  - "How long can a key be in Cloudflare Workers KV? I want to know the maximum key size.": without WebMCP 20.9k tokens, 100% solved; with WebMCP 2.9k tokens, 100% solved
- Notion
  - "I'm writing long paragraphs into a Notion page through the API. What's the maximum number of characters a single rich text object's text content can have in a request?": without WebMCP 43.0k tokens, 100% solved; with WebMCP 2.7k tokens, 100% solved
  - "I'm paginating through results from the Notion API. What's the largest page_size I can request per call on the list endpoints?": without WebMCP 37.0k tokens, 100% solved; with WebMCP 2.8k tokens, 100% solved
  - "How many requests per minute does the Notion API allow per connection on plans other than Business and Enterprise?": without WebMCP 16.5k tokens, 100% solved; with WebMCP 2.6k tokens, 100% solved
  - "When my Notion integration sends too many requests, what error code string does the API put in the error response body?": without WebMCP 17.4k tokens, 100% solved; with WebMCP 5.9k tokens, 100% solved
  - "What's the biggest file I can send to the Notion API in a single-part upload before I have to switch to a multi-part upload?": without WebMCP 18.0k tokens, 100% solved; with WebMCP 14.2k tokens, 100% solved
- specification.website
  - "How long should a page's meta description be, according to this spec?": without WebMCP 32.0k tokens, 100% solved; with WebMCP 7.6k tokens, 100% solved
  - "What max-age should I put in my HSTS header for production, per this spec?": without WebMCP 28.0k tokens, 100% solved; with WebMCP 7.4k tokens, 100% solved
  - "What minimum contrast ratio does this site's spec require for normal-size body text?": without WebMCP 22.9k tokens, 100% solved; with WebMCP 7.7k tokens, 100% solved
  - "What INP value does this spec set as the target for good responsiveness?": without WebMCP 15.5k tokens, 100% solved; with WebMCP 7.1k tokens, 100% solved
  - "What's the minimum tap target size this spec requires for buttons and other interactive controls?": without WebMCP 14.9k tokens, 100% solved; with WebMCP 8.6k tokens, 100% solved
- Kiln & Co
  - "Add one Stoneware Teapot and one Speckled Bowl to my cart, then tell me the cart total.": without WebMCP 21.8k tokens, 100% solved; with WebMCP 6.2k tokens, 100% solved
  - "Add two of the cheapest blue mug to my cart.": without WebMCP 10.3k tokens, 100% solved; with WebMCP 3.9k tokens, 100% solved
  - "Put the most expensive teapot you sell in my cart.": without WebMCP 8.7k tokens, 100% solved; with WebMCP 3.7k tokens, 100% solved
  - "I need a green gift under $30 that I can buy right now. What do you have?": without WebMCP 4.0k tokens, 100% solved; with WebMCP 2.5k tokens, 100% solved
  - "When will the Ash Glaze Vase be back in stock? Give the date as the store writes it.": without WebMCP 3.8k tokens, 100% solved; with WebMCP 2.4k tokens, 100% solved
- Orbit docs
  - "By default, how many past releases does Orbit keep for rollback?": without WebMCP 5.4k tokens, 100% solved; with WebMCP 2.4k tokens, 100% solved
  - "Which environment variable makes Orbit read its config file from a different path?": without WebMCP 5.4k tokens, 100% solved; with WebMCP 2.4k tokens, 100% solved
  - "My CI step failed with orbit exit code 4. What does that mean?": without WebMCP 5.5k tokens, 100% solved; with WebMCP 2.4k tokens, 100% solved
  - "Which rollout strategies can I pick when I run orbit deploy?": without WebMCP 5.5k tokens, 100% solved; with WebMCP 2.5k tokens, 100% solved
  - "What is the default timeout of `orbit deploy`, and which flag changes it?": without WebMCP 5.4k tokens, 100% solved; with WebMCP 7.6k tokens, 100% solved
- WooCommerce
  - "I want to buy a few Agent Notebooks for my team. How many are left in stock?": without WebMCP 6.7k tokens, 100% solved; with WebMCP 9.4k tokens, 100% solved
  - "Is anything in this store on sale right now? What's the sale price?": without WebMCP 6.2k tokens, 100% solved; with WebMCP 9.3k tokens, 100% solved
  - "Which product in this store is out of stock?": without WebMCP 6.1k tokens, 100% solved; with WebMCP 9.4k tokens, 100% solved
  - "What is the cheapest product in this store that is in stock, and what does it cost?": without WebMCP 6.3k tokens, 100% solved; with WebMCP 9.9k tokens, 100% solved
  - "How many products does this store have in its Apparel category, and which ones are they?": without WebMCP 6.3k tokens, 100% solved; with WebMCP 20.8k tokens, 100% solved

Details: https://webmcpx.dev/benchmark/claude-haiku-5-5/

Page: https://webmcpx.dev/benchmark/claude-haiku-5-5/ · Raw results: https://github.com/webmcpx/webmcpx/tree/main/site/src/lib/content/bench