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

Annotations already establish that this is a read-only, idempotent, non-destructive operation. The description adds valuable context beyond the annotations: the tool is free, updates every 5 seconds, returns ten items per list, and includes paid-check URLs/tools. It does not mention rate limits or output formatting, but those are not critical for a safely read-only 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?

The description is dense and mostly front-loaded: 'Free' appears first, the main behavior is stated in the first sentence, and the usage guidance is given last. The first sentence is long and packed, but every clause earns its place.

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 no-argument live-list tool without an output schema, the description covers what is returned, how often it refreshes, the ranking criteria, the inclusion of paid-check URLs/tools, and the recommended alternative. An agent has enough information to call it correctly and understand the results.

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?

The input schema is empty and the description explicitly confirms 'No arguments.' With zero parameters, there is nothing further to document, and the explicit statement prevents the agent from inventing arguments. Baseline 4 is appropriate for a no-parameter tool.

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 is specific and concrete: it shows two ranked lists of covered pump.fun mints by age and calibrated risk probabilities, refreshed every 5 seconds, with paid-check links and tools. It also names the sibling alternative, check_pumpfun_risk, so an agent can distinguish radar from other mint-related tools.

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 explicitly tells the agent when to use the tool: to find fresh mints worth a paid check. It also tells the agent when not to use it, directing to check_pumpfun_risk for a mint the user already holds. This is clear, actionable guidance.

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