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

With no annotations, the description carries the burden and discloses important behavior: paid $0.25 USDC/call via x402, eip155:8453, return verdict/score/criteria, signed EIP-712 attestation, ERC-8183 reason digest, and no funds held. It still does not fully describe operational details such as URL-fetch security, idempotency, or failure 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 dense but efficient, front-loading pricing/rail context before the core purpose and output details. It avoids fluff, though the single long sentence is somewhat packed and could be easier to scan if structured.

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 six-parameter tool with no output schema, the description does a good job naming the return fields and explaining the attestation and payment context. It is mostly complete, though it does not cover error cases, attestation storage, or full output 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 100%, so all six parameters are already documented in the schema. The description adds context about deliverable/spec formats and attestation output, but does not add parameter-level meaning beyond what the schema provides.

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 gives a specific verb and resource: evaluate a deliverable against a job spec. It also lists the concrete outputs (verdict, score, checked criteria, signed EIP-712 attestation), so the agent can distinguish this from generic verification or payment tools.

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 usage by stating that it evaluates a deliverable against a job spec, but it does not explicitly say when to use this versus alternatives such as verify_attestation or other sibling tools. No when-not conditions or alternative-routing guidance are provided.

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