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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Tool description

WebFetch tool description

SDK-CLI Agent SDK, print mode, v2.1.295. The text the model is given for this tool, line by line, with each line marked against the previous capture taken the same way. One model string produces this prompt.

As described in the system reminder: hook pretool block request, not the ordinary one.

Lines6469 characters
Moved+0−0 against v2.1.294
Sent to1model strings get this description
Copies1distinct descriptions under this name
Parameters32 of them required Every tool→every description on this arm
Raw Reading
Plain text · sha256 28495ef9c5ab

The description, rendered

This renders the markdown inside the description, so it isn’t quite the description itself.

The raw view and the plain text are the bytes as they were sent.

Fetches a URL, converts the page to markdown, and answers prompt against it using a small fast model.

  • Fails on authenticated/private URLs — use an authenticated MCP tool or gh for those instead.
  • Fails on localhost and other hostnames without a dot; for a local server, use curl via Bash.
  • HTTP is upgraded to HTTPS. Cross-host redirects are returned to you rather than followed; call again with the redirect URL.
  • Responses are cached for 15 minutes per URL.

What it accepts

3 parameters The JSON parameter schema sent beside this description, 646 characters of it. Name, type, then whether the client marked it required.
offset integer optional Character position in the page text to start reading from. Use it to read on through a page too long for one call, with the value the previous result gave.
prompt string required The prompt to run on the fetched content
url string required The URL to fetch content from

sha256 1e11868da446 · the schema as the client sent it:

{ "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "offset": { "description": "Character position in the page text to start reading from. Use it to read on through a page too long for one call, with the value the previous result gave.", "maximum": 9007199254740991, "minimum": 0, "type": "integer" }, "prompt": { "description": "The prompt to run on the fetched content", "type": "string" }, "url": { "description": "The URL to fetch content from", "format": "uri", "type": "string" } }, "required": [ "url", "prompt" ], "type": "object" }
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