describe_coverage

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

With no annotations provided, the description carries full burden for behavioral disclosure. It implies a read-only operation but fails to detail potential side effects, error handling, or response characteristics (e.g., no mention of what happens if coverage_id is invalid). The description is too minimal to provide adequate transparency.

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 sentence, concise and to the point. It avoids unnecessary words. However, a more structured format (e.g., bullet points) could improve readability for agents, but overall it is appropriately sized.

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?

The tool is simple with one parameter and an output schema (which may mitigate the need for extensive return value description). However, the description does not explain what 'structural metadata' includes or any context like typical use cases. It is minimally adequate for a simple tool but lacks depth.

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 description coverage is 0%, meaning the description must compensate for parameter meaning. However, the description only mentions 'specific datacube' without clarifying the format, constraints, or examples for 'coverage_id'. The parameter semantics are largely left to inference.

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 verb 'retrieves' and the resource 'structural metadata for a specific datacube (coverage)'. It distinguishes from siblings like 'list_coverages' which lists coverages, and 'execute_wcps_query' which runs queries. However, it is somewhat vague about what constitutes 'structural metadata', leaving room for ambiguity.

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 usage guidelines are provided. The description does not indicate when to use this tool versus alternatives like 'list_coverages' or 'execute_wcps_query'. There is no mention of prerequisites or context for optimal use.

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