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aleostudio

aleostudio MCP Server

by aleostudio

fetch_url

Execute HTTP requests to external URLs using GET or HEAD methods to retrieve status codes, headers, and content from web resources.

Instructions

Execute HTTP requests to external URLs.

Args:
    url: URL to fetch
    method: HTTP method (GET, HEAD)

Returns:
    Status code, headers and content (truncated if too long)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYes
methodNoGET

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden and does well by disclosing key behavioral traits: it specifies supported HTTP methods (GET, HEAD), mentions content truncation behavior, and describes the return format (status code, headers, content). It doesn't cover rate limits, authentication needs, or error handling, but provides solid foundational information.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is perfectly structured with a clear purpose statement followed by organized Args and Returns sections. Every sentence earns its place, with zero wasted words. The information is front-loaded and efficiently presented in just four lines.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (HTTP client), no annotations, and the presence of an output schema, the description provides good coverage of purpose, parameters, and return behavior. It could benefit from mentioning security considerations or error scenarios, but covers the essential operational aspects adequately.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With 0% schema description coverage, the description compensates well by explaining both parameters: 'url' as 'URL to fetch' and 'method' as 'HTTP method (GET, HEAD)' with the default value implied. It adds meaningful context beyond the bare schema, though it could specify URL format requirements or method constraints more explicitly.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Execute HTTP requests') and target resource ('to external URLs'), distinguishing it from sibling tools like calculate or process_text. It uses precise technical terminology that leaves no ambiguity about the tool's function.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context through the mention of 'external URLs' and HTTP methods, suggesting this is for web requests rather than internal operations. However, it provides no explicit guidance on when to use this tool versus alternatives or any prerequisites for usage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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