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

Without annotations, the description does not disclose side effects, authorization requirements, or whether the operation is read-only. 'Verify' implies a check, but no explicit safety or mutability information is given.

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 short sentence, which is concise but lacks necessary details about parameters, output, or behavior. It is under-specified for a tool with 4 parameters and no annotations.

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 does not explain return values, verification criteria, or prerequisites. With no output schema and sparse annotations, more context is needed for an agent to correctly invoke the tool.

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 75% (3 of 4 parameters have descriptions). The description adds minimal value beyond the schema; the 'input' object is vaguely described as 'Fields required by this journey action.'

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 verifies ads.txt and inert Sulvo head-tag ownership evidence, specifying the verb 'verify' and the resource (site ownership). This distinguishes it from sibling verification tools like verify_sulvo_placement_installation and verify_sulvo_signup_ads_txt.

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 its siblings. The description does not mention prerequisites, alternatives, or context (e.g., after account setup).

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