Fetches the complete content of a specified URL and converts it into plain, easy-to-read text.
直接抓取指定 URL 网页的完整正文内容并转换为易读的文本
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | 需要抓取的完整网页网址（例如 https://docs.example.com） |
Changes observed during successful MCP inspections.
v1.0.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must fully convey behavior. It mentions fetching the 'complete main content' and converting to text, but omits any mention of handling dynamic content, authentication, timeouts, or error cases. This is a significant gap for a web-fetching tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence with no unnecessary words. It is concise and gets to the point, though it could slightly benefit from structuring key constraints more explicitly.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with a single parameter and no output schema, the description should cover potential failure modes and limitations. It lacks any mention of what happens on failure, unsupported URL types, or rate limits. Given the lack of annotations, this is incomplete for safe agent use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, so the url parameter is already well-documented. The description does not add extra semantic meaning beyond what the schema provides, matching the baseline for high schema coverage.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'fetch' and the resource 'webpage', and adds that it converts content to readable text. It is specific enough, though it doesn't explicitly contrast with sibling tool cpa_search, which appears to be a different operation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given on when to use this tool versus alternatives, nor any prerequisites or exclusions. The description simply states what it does, leaving the agent to infer when it is appropriate.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.