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

With no annotations, the description carries the burden of disclosing behavior, and it does provide one useful constraint: '5 free trial calls per signed wallet.' However, it does not explain the signed-wallet requirement, whether the operation is read-only, or what kind of result the agent should expect.

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 short line that front-loads the purpose before the trial-call note. Every element earns its place, and there is no filler or redundancy.

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 security-related tool with no output schema and no annotations, the description omits return behavior, parameter details, and the meaning of the 'signed wallet' prerequisite. It is minimally viable but leaves a calling agent guessing about important operational context.

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 coverage is 100%, so the baseline is 3; both 'token' and 'address' have descriptions. The tool description adds no further meaning, and the schema descriptions are generic ('Token to process', 'Address to process'), leaving format and which address is expected unspecified.

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 'Token Security: ERC-20 risk on Base', which clearly identifies the resource (ERC-20 tokens) and chain (Base) even though it lacks an explicit verb. It is not a tautology, but it does not differentiate from closely related siblings like x402-token-risk-report or x402-token-rugcheck.

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 on when to use this tool versus alternatives; the description only labels the domain. An agent cannot determine whether to select this over siblings such as x402-token-risk-report or x402-token-rugcheck.

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