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

With no annotations, the description carries the full burden and does a good job: it discloses the return type (typed verdict, meaning, covered claims) and the public/no-pass requirement. It does not explicitly state read-only behavior or side effects, but the verb 'verify' strongly implies a safe read operation.

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, front-loaded with the verb and resource, with no filler. The long enumeration of verdicts is dense but informative and earns its place by specifying possible outcomes.

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?

For a verification tool with one parameter and no output schema, the description provides enough to call it correctly: it names the inputs, access level, and return shape. It could be more explicit about read-only nature or output format, but it is largely complete.

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 description coverage is 100%, so the baseline is 3. The description mentions 'a pass or a receipt' but adds no syntax, format, or validation details beyond what the schema already provides for the token parameter.

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 specific verb (verify) and resource (pass or receipt) and lists the exact return verdicts, making the tool's purpose clear. However, it does not explicitly differentiate itself from siblings like receipt or mark_receipt, leaving the agent to infer the distinction.

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 only usage guidance is 'Public; needs no pass,' which tells the agent authentication isn't required but offers no when-to-use or when-not-to-use context relative to alternatives. No explicit conditions or sibling comparisons are provided.

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