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

No annotations are provided, so the description carries the full burden. It discloses a key behavioral trait—pay-per-use at 0.01 USDC on Base—and the verification scope. However, it omits authentication needs, failure modes, and output guarantees.

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?

Compact single sentence, but the opening 'Auto-created from research:' is meta noise that does not help invocation or selection. The payment bracket is useful but appended after the purpose.

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 covers purpose and payment, but with no output schema and a generic 'input' parameter, it leaves the agent without guidance on input format or expected return. This is a significant gap for a tool that requires a counterparty identifier or payload.

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%, but the sole parameter is named 'input' and described only as 'entrada', which is tautological. The description adds no format, source, or semantics for what to pass, so baseline 3 applies.

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?

States a specific verb 'Evalúa' and resource 'identidad y fiabilidad de un agente contraparte', with scope 'antes de un pago o transacción' and verification targets. However, it does not differentiate from sibling agent-counterparty-trust-check or other agent-trust tools, so despite clarity, it is not fully distinguishing.

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?

Provides an implied context ('antes de un pago o transacción') but no explicit when-to-use vs alternatives, and does not name any sibling tools or exclusions. The x402 payment note adds practical context but not usage routing.

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