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

With no annotations, the description carries the full behavioral burden. It does add useful context by disclosing that this is a pay-per-use tool costing 0.01 USDC on Base via x402. However, it does not clarify input language expectations, output format, limits, or any sequential pipeline behavior beyond the two verbs.

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 very short and front-loaded with the core action, then adds the cost/payment note in brackets. It is efficiently structured and contains no filler, though it omits a few details that would make it more useful.

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 simple one-parameter transformation tool, the description provides the essential action and cost information. However, without an output schema or any note about return values, input language, or operational limits, the description is only minimally complete for an agent deciding whether and how to call it.

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 coverage is 100% for the single required parameter 'input', so the schema already documents the parameter's existence. The description adds limited meaning by implying 'input' is the text to be summarized and translated, but it does not specify format, language, or length expectations beyond that.

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 action ('resume y traduce al ingles' — summarize and translate into English) on the single input resource. It is clear enough to be distinguished from nearby siblings like 'summarize' or 'translate-en' by the combined behavior, though it does not explicitly name those alternatives.

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?

The description gives no explicit guidance on when to use this tool versus the many sibling tools that also summarize or translate, such as 'summarize', 'traducir', or 'fast-translate'. Usage is only implied by the action phrase, and no when-not-to-use or alternative-selection conditions are provided.

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