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

The $(0.02) cost per call is genuinely useful context not derivable from annotations. Annotations set readOnlyHint=false, openWorldHint=true, idempotentHint=true, and destructiveHint=false; the description neither contradicts nor elaborates on these. No mention of latency, rate limits, or that the check is external and non-cached.

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?

A single, tight sentence with the core capability front-loaded and the cost appended. No filler. Length is appropriate for the scope, though the cost could be a separate clause to improve scanability.

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?

With no output schema and 0% schema coverage, the description leaves the return shape unexplained. The agent does not know whether the response is a boolean, a risk score, sub-scores per check, or a list of findings. Given a mutation-flagged, open-world, paid tool, more behavioral and return information is warranted.

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 0% with two parameters (chain and address). The description provides no information about what chain values are accepted, whether chain defaults, or what address format is expected. This leaves the agent to infer syntax for both parameters.

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+resource ('Token safety check') and enumerates the checks it performs (rug pull risk, honeypot detection, liquidity analysis). It is distinguishable from the closest sibling wallet-risk, though the description does not explicitly name the distinction.

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?

No when-to-use guidance and no alternative named. The most relevant sibling, wallet-risk, is not mentioned, so the agent must guess whether to screen an address as a token or a wallet. Only the implied 'call this to check token safety' is present.

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