Make HTTP request or download

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

Beyond the annotations, the description adds meaningful context: the request is made 'from this PC' and it 'does not inherit OpenAI or tunnel credentials,' which lets agents know explicit headers are needed for authenticated endpoints. It also exposed the side effect of downloading to a local file, which is not fully captured by the annotation flags.

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 short and front-loaded: the first sentence states the core capability and the second gives a useful credential caveat. Every sentence earns its place; no filler or title repetition.

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?

The description communicates the primary use cases and an important authentication constraint, but with six parameters, no output schema, and no parameter descriptions, it leaves gaps around response return values, error behavior, and request-side details such as headers/body when not covered by the schema.

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?

With 0% schema_description_coverage, the description is expected to compensate by explaining parameters, but it only vaguely maps to 'URL' and 'local file.' There is no meaningful detail added for body, method, headers, timeout, or saveTo semantics beyond what generic names and types already provide.

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 tool states a concrete action: 'Call an HTTP/HTTPS URL from this PC' and additionally mentions downloading the response locally, which clarifies the intended scope. It doesn't explicitly distinguish itself from siblings like open_url or file tools, so it stops short of a perfect score.

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?

The description explains what the tool does but provides no guidance on when to prefer it over alternatives such as open_url, exec, or file_operation. The credential note is useful behaviorally but isn't shaped as 'use this when' or 'avoid this when' guidance.

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