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

The description adds useful behavior beyond the annotations: the result is deterministic and signed, and it operates only over the supplied input. It does not contradict the readOnly/idempotent hints, though it omits details about signature format, validation, or error 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 short, but it begins by repeating the tool name and title. The remaining phrase adds some value, but the entry is under-specified rather than efficiently informative.

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?

Despite simple schema and safe annotations, the tool cannot be invoked confidently because the meaning of 'approval' and the expected input shape are never explained. An agent would not know whether to pass a boolean, an object, or some other structure.

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 high, so the baseline is 3; the description does not need to re-list parameter details. That said, the required 'approval' parameter is completely opaque, and the description's 'supplied input' does not clarify what form the approval should take.

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 says it produces a 'deterministic signed assessment over supplied input,' which identifies a specific kind of output and a clear scope. However, it is vague about what 'approval relay' actually does and does not distinguish it from related tools like attest, verify, or signed_result_comparator.

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?

There is no guidance about when to use this tool versus any of its many siblings. The description neither states the intended use case nor names alternatives, so an agent cannot decide when this is the right choice.

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