util_url_health

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

No annotations exist, and the description omits critical behavioral details such as request method, redirect handling, timeout, and error handling for unreachable URLs. The return values are listed but not the underlying behavior.

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, but it is under-specified for a tool with an opaque parameter. Conciseness sacrifices necessary detail.

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?

Given the lack of annotations, a generic schema with no property descriptions, and no output schema, the description is grossly incomplete. It fails to define input format or request behavior.

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?

Schema coverage is 0% with a generic 'arguments' object. The description provides no explanation of expected properties (e.g., URL, timeout). The tool's input is a black box.

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 tool checks URL reachability and returns HTTP status, latency, and key headers. This distinguishes it from sibling tools like dns_lookup or http_headers_inspect, though 'reachable' could be more precisely defined (e.g., GET request).

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 provides no guidance on when to use this tool versus alternatives like dns_lookup or http_codes. No exclusions or context for selection.

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