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

The description explicitly notes that query and fragment are dropped, which is useful behavioral information. However, it does not disclose any other side effects, error conditions, or security implications, and the many unrelated parameters create confusion about actual 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 extremely concise, consisting of two short sentences that convey the core functionality without unnecessary detail. This is ideal for a tool description.

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 tool's apparent simplicity, the description provides minimal context. It does not explain the purpose of the extra parameters, nor does it specify output structure or any preconditions. The mismatch between description and schema leaves the agent under-informed.

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?

Although schema coverage is 100%, the parameter descriptions are generic and largely irrelevant to URL normalization (e.g., 'ref' as Git ref, 'city' as weather hint). The description adds no clarification, and the parameters actively mislead about the tool's actual inputs.

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 returns origin, host, and path from a URL, which is a specific and distinct operation among the sibling tools. However, the presence of many unrelated parameters in the schema slightly muddies the core purpose.

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 provided on when to use this tool versus alternatives. The description does not mention any conditions, alternatives, or exclusions, leaving the agent without decision support.

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