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

With no annotations, the description carries the burden for behavioral disclosure. It reveals the conditional behavior (with/without zona) and the types of content included, but does not mention error handling, return format, or what happens if an invalid zone is provided.

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 only two sentences, front-loading the main purpose and immediately noting the key optional behavior. Every sentence adds value without 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 simple read-only tool with two parameters and no output schema, the description covers the core functionality and the main conditional. It could be more explicit about the return structure and edge cases, but it is adequate given the low complexity.

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 50% (zona has a description, isola does not). The description supplements the schema by clarifying that omitting zona yields the list of zones, adding meaningful context beyond the raw parameter definitions. It does not add detail for the required isola parameter.

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 provides editorial content for a zone (beaches, restaurants, attractions, trails) and explicitly describes the fallback behavior when no zone is given. This distinguishes it from sibling tools focused on hotels, offers, excursions, etc.

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 explains when to omit the zona parameter (to get the list of available zones), which is a usage guideline. However, it does not explicitly state when to use this tool instead of alternatives or provide exclusion criteria.

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