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

The 'No disk access' note is useful, but without annotations or an output schema the description does not state the return type, success/error behavior, or what 'looks safe' means.

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 appropriately short and front-loaded, but it is too terse to resolve the mismatch between the stated path-only purpose and the broad optional parameter list.

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?

There is no output schema and no explanation of expected return values, edge cases, or whether the extra optional fields are ignored; an agent cannot confidently predict the tool's full 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?

Each parameter has a one-line schema description and coverage is 100%, but only `path` relates to the stated purpose and the eight other parameters are not connected to any described behavior, leaving invocation ambiguous.

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 says 'check whether a path looks safe' and notes no disk access, but the schema exposes eight unrelated optional inputs (ref, url, city, feed, host, json, zone, query), so the tool's actual scope is ambiguous.

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?

It does not say when to choose this tool over sibling validators such as domain-shape, browser-url-ok, or validate-json, nor does it explain how to handle the non-path parameters.

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