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

No annotations are provided, so the description must disclose behavior. It mentions a payment of $0.01 USDC Base x402, which hints at a cost but is unclear. It does not state whether the tool is read-only, what it returns, or any side effects beyond payment.

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 concise, three sentences, with the core purpose front-loaded. The legal reference and distinction are useful, and the payment note is brief. No filler or redundancy.

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 zero-parameter tool, it still fails to explain what the tool actually returns (presumably a text snippet), how the optional amount is used, or the significance of the payment. The description is too terse to fully prepare an agent to call it correctly.

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?

There are no defined parameters, and the schema is permissive (additionalProperties). The description mentions 'Optional amount', which could imply an optional parameter, but it is not linked to a schema field. This adds slight semantic value beyond the empty schema, but remains ambiguous.

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 identifies a specific purpose: generating a French contractual penalty clause based on C. civ. 1231-5, and distinguishes it from the statutory late-payment clause (L441-10). This is clear enough to differentiate from general penalty tools, though it does not explicitly state it 'returns' or 'generates' text.

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 provides one exclusion: distinct from statutory late-payment, implying use for contractual clauses. However, it does not explain when to choose this over sibling tools like penalty_text or late_penalties, nor any prerequisites or context.

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