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

With no annotations provided, the description carries the full burden of explaining behavior. It does disclose 'No disk access,' which is useful, but it does not mention return values, error behavior, side effects, or whether the check is syntactic, semantic, or security-related.

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 direct, but it is too sparse to be considered well structured. It provides no output details, no examples, and no organization of the many parameters, so the brevity comes at the cost of usefulness.

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 has nine optional parameters and no output schema, the description is severely incomplete. It does not explain what constitutes a 'safe' path, which parameters are relevant, how the unrelated parameters are handled, or what the caller should expect in response.

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 the schema has 100% description coverage, most parameter descriptions are irrelevant to a file-path check. The 'path' field is described appropriately, but the presence of eight unrelated optional parameters with no explanation of how they relate to the tool makes the parameter semantics confusing and inconsistent.

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 states a clear action and resource: 'Check whether a path looks safe.' However, it does not define what 'safe' means, and the parameter list includes many unrelated fields (ref, url, city, feed, host, json, zone, query), which muddies the tool's actual 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 about when to use this tool versus alternatives such as browser-url-ok, normalize-url, or validate-json. The description merely repeats the tool name and gives no conditions, prerequisites, or selection criteria.

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