Verify a certificate's signature

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

With no annotations, the description carries full burden. It states that the tool confirms authenticity and integrity of declared data, but lacks details on side effects, authentication requirements, or what occurs upon failure. Some behavioral context is provided, but important aspects are missing.

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 two sentences with no extraneous information. The key verb and resource are front-loaded, and each sentence adds value. Perfectly concise.

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's complexity (7 parameters, no output schema), the description covers purpose and exclusions but does not explain return values or error handling. It is adequate but lacks completeness for an agent to fully understand 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?

Schema description coverage is 43%, so the description partially compensates by explaining that metadata parameters are included in verification if present. However, it does not add detailed semantics for each parameter beyond the schema's minimal descriptions.

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 specific action: verify the HMAC signature of a certificate's attestation and declared metadata. It explicitly distinguishes from sibling tool verify_file by noting that it does not check against a local file, making the purpose unambiguous.

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 description implies when to use this tool (to verify signature of attestation/data) and when not to (if file matching is needed, use verify_file). While not naming siblings explicitly, the context is clear and provides guidance on usage scope.

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