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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions a cost/payment model ('[x402: 0.1 USDC on Base, pay-per-use]') which is a useful operational detail, but it does not disclose any other behavioral aspects such as output format, read-only nature, or potential side effects. Given the lack of annotations, this is insufficient transparency for a tool that likely produces generated content.

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, just a single sentence with the core purpose and an input hint, plus a cost note. It is front-loaded with the purpose and contains no wasted words. It is appropriately concise for such a simple tool, though the cost note at the end might be considered a minor distraction.

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 one parameter, no output schema, and no annotations, the description is minimal. It leaves out expected return values, any formatting or structure of the plan, and any caveats about the generation process. Given the similarity to many siblings, it also fails to explain what distinguishes this plan generator from others. The description is insufficient for an agent to confidently invoke this tool correctly without guessing.

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 describes the only parameter 'input' with the generic text 'service input', which provides no real semantic value. The description adds clarification by stating 'input=objetivo/contexto del plan', explaining what the input should contain. This compensates for the vague schema description, though it does not elaborate on format, length, or examples. With 100% schema coverage but poor schema wording, the description adds meaningful but limited value.

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 clearly states the tool's function with a specific verb and resource: 'Genera un plan estratégico' (generates a strategic plan). It is unambiguous about what it produces, but it does not distinguish itself from several siblings like 'strategy-plan' or 'business-plan' that likely have overlapping purposes. No differentiation mechanism is provided.

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 offers no guidance on when to use this tool versus the many related alternatives (e.g., 'strategy-plan', 'gtm-strategy', 'business-plan'). It only hints at the input content ('objetivo/contexto del plan') but gives no context, prerequisites, or exclusions. An agent would have no way to know if this tool is the right choice among siblings.

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