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

Annotations are absent, so the description carries the burden. It does disclose the pay-per-use payment requirement via x402 (0.005 USDC on Base), which is valuable behavioral context beyond the schema. But it omits other behaviors like output format, language support, or whether any auth is needed 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 a single concise sentence, with the key purpose front-loaded. The 'auto-created from real demand' clause is unnecessary noise, but the pricing bracket is useful and compact.

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-param tool with no annotations and no output schema, the description is missing operational essentials: what exactly to pass as input, what the response will be, and whether any language parameters are needed. The payment detail is present, but an agent would likely struggle to invoke this correctly without more context.

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 schema's parameter description ('entrada del servicio') is vague, and the tool description adds only the domain context ('legal') to hint that the input should be legal text. It doesn't clarify expected input format, source/target languages, or length limits, so it barely meets the baseline.

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 service ('Legal translation service') which differentiates it from generic translation siblings like 'traducir' or 'translate-doc'. However, it doesn't specify language direction or output format, so it's clear but not fully precise.

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 guidance on when to use this versus sibling translation tools. It doesn't mention alternatives, prerequisites, or use cases, leaving the agent to infer the 'legal' qualifier matters.

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