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

With no annotations, the description carries the full behavioral burden, and it does disclose a genuinely useful non-schema fact: pay-per-use cost of 0.01 USDC on Base via x402. Beyond that it says nothing about what the tool returns, its latency, side effects, or authentication needs.

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?

It is short, but the only sentence is off-topic metadata rather than a front-loaded statement of purpose. Brevity here reflects under-specification, not economical writing.

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 tool with a generic single 'input' parameter, no output schema, and no annotations, the description should at minimum state the task and expected input format. It provides none of that, leaving an agent unable to invoke the tool 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 is a single required parameter, and the description says nothing about it. Although schema coverage is nominally 100%, the schema's own description is the meaningless placeholder 'entrada', so neither structured data nor prose conveys what input is expected (a company name? a URL? raw text?).

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 never states what the tool does; it only reports provenance ('Auto-created from real demand (97 requests)') and pricing. The name 'analisis-competencia' implies competitive analysis, but the text offers no verb+resource and no differentiation from siblings like 'competitive-analysis', 'competitor-scan', and 'competitor-monitoring'.

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 when-to-use, when-not-to-use, prerequisites, or alternatives are given. The mention of a price does not tell an agent under what conditions this tool should be selected over its near-duplicate siblings.

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