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

With no annotations, the description carries the full burden and does well: it discloses the payment requirement ($0.05 via x402), the exact output categories (avoid / high_risk / caution / low_risk) with a one-line summary, and a liability disclaimer. It does not mention latency, rate limits, or whether results are cached, but the safety/payment profile is unusually well covered for an unannotated tool.

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?

Three dense sentences: capability, usage trigger, then cost/disclaimer. The verdict vocabulary and the use-case trigger are front-loaded, and every clause carries information (checks performed, output categories, price, legal caveat) with no filler.

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?

No output schema exists, so the description must convey the return value, which it does by naming the four verdict tiers and the accompanying English summary. Combined with the schema's documentation of the address parameter and its example fallback, an agent has everything needed to call and interpret this 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% and the single address parameter is fully documented in the schema, including the example fallback behavior. The description adds only the 'ERC-20 on Base' framing, which the schema already implies, so the 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?

Names a specific resource (ERC-20 on Base) and a specific action (one-call verdict) and enumerates the constituent checks (risk, rug-pull, holder, momentum, contract flags) plus the exact verdict vocabulary it returns. This clearly positions it as the aggregator relative to the narrower siblings holder_check, momentum_score, rug_check and token_risk.

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?

'Use once before buying or listing an unknown Base token' gives an explicit decision context, and 'one-call' implicitly contrasts with invoking the four sibling checks separately. It stops short of stating when NOT to use it (e.g. known/safe tokens, non-Base chains) or naming the siblings as alternatives, so it is clear but not complete.

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