compare_cdaweb_pds_spice

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It fails to state whether the tool is read-only, destructive, requires authentication, or any side effects. The description provides no behavioral context beyond the vague 'compare' action.

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, which is concise, but it sacrifices necessary detail. It front-loads the verb but fails to provide enough information to be useful. A 3 is appropriate as it is not verbose but is under-specified.

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?

Given the low schema coverage (0%), no annotations, and a vague description, the definition is incomplete. An output schema exists but its content is not visible to assess if it compensates. The agent lacks sufficient information to correctly invoke the tool for the given 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 input schema has 0% schema description coverage, meaning the parameter 'science_goal' has no description in the schema. The tool description does not mention or explain this parameter, leaving the agent without any guidance on how to use it.

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 uses the verb 'compare' which indicates the main action, but the object 'CDAWeb, PDS, and SPICE roles' is vague; 'roles' is ambiguous and does not clarify what aspect (e.g., data availability, access rights) is being compared. The purpose is discernible but lacks specificity.

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 is provided on when to use this tool versus its siblings such as fetch_data, fetch_pds_data, or browse_observatories. The description does not mention any prerequisites, alternatives, or context for choosing this tool.

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