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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the description adds value by disclosing the $0.01 USDC cost via x402, the supported chains, and the full set of returned verdict fields. It does not contradict the annotations and adds meaningful context beyond them.

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 dense sentence that front-loads the paid nature and use case, then efficiently enumerates inputs, outputs, and reason codes. Every clause earns its place, and the 'Same as GET /v1/token' pointer is useful. It is long but not bloated.

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 having no output schema, the description fully enumerates the return payload: verdict color, grade, reason codes, summary, and market data. It also states cost, chains, and input requirements. It is incomplete only regarding error cases and edge behavior, but it is otherwise strong for a two-parameter tool.

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%: both parameters are already documented with chain enum and address format. The description restates the chain list and the address/mint concept but adds no new semantic detail beyond what the schema already provides, so the baseline score of 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?

The description clearly identifies a specific action ('call this before your agent buys, holds or accepts a token') and a specific resource (token risk verdict). It lists the exact outputs. However, it does not explicitly differentiate itself from the sibling tool token_quick_verdict, so it misses the top score.

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 gives clear when-to-use context: before buying, holding, or accepting a token. It also spells out required inputs. It does not provide when-not-to-use guidance or name alternatives, so it falls short of explicit exclusion guidance.

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