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

Annotations already declare read-only, idempotent, and open-world behavior, so the bar is lower. The description adds useful context beyond annotations: the per-IP daily rate limit, the verdict categories returned, and the fact that reasons and evidence accompany the verdict. The phrase 'full quick Token Verdict' is slightly ambiguous about whether the demo result is truncated, which keeps it from a 5.

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 two compact sentences: the first front-loads the free daily limit and what the tool returns, and the second routes the agent to token_verdict. Every sentence earns its place, though 'full quick Token Verdict' is awkward phrasing that briefly obscures meaning.

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 one-parameter read-only tool with annotations and no output schema, the description covers the essentials: what is returned, the verdict categories, evidence inclusion, the free daily limit, and the fallback tool. The main missing context is how this demo relates to verdict_preview, which is not addressed.

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?

With one parameter and 100% schema description coverage, the schema already documents the token address and its pattern. The description only restates that it is an Ethereum token, adding no syntax, format, or example detail beyond the schema, so the baseline 3 is appropriate.

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 a specific verb and resource: return a Token Verdict (no issues found / caution / avoid) for an Ethereum token, including reasons and evidence. It also scopes the tool as the free per-IP demo and names the production sibling token_verdict, so an agent can tell it apart from other verdict tools without opening a schema.

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?

It gives an explicit usage condition ('one full quick Token Verdict per IP per day, free') and names the alternative ('After that, use token_verdict'). The only gap is that it does not distinguish itself from verdict_preview, which also appears among the siblings and could be confused with a demo.

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