list_exposure_mmdb_mediums

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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=true and destructiveHint=false, covering the safety profile. The description adds nothing beyond that — no note about the fixed/static nature of the category list or caching, so it earns no credit over the structured fields.

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?

A single four-word phrase with zero padding and the verb front-loaded. It is efficient, though the brevity borders on under-specification rather than optimal conciseness.

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?

An output schema exists, so return values need not be explained, and there are no parameters to document. Still, for a lookup whose only purpose is to feed sibling MMDB tools, the description omits the connecting context, leaving it minimally adequate.

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 tool takes zero parameters, so there is no parameter semantics to convey; the baseline for a 0-param tool is 4.

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?

States a specific verb (List) and resource (MMDB medium categories), so the agent knows it enumerates categories rather than fetching data. However, 'MMDB' is unexplained jargon and the description does nothing to distinguish it from near-identical siblings like list_exposure_functional_use_categories or list_exposure_product_puc.

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 indication of when to call this tool or what to do with the result. It never mentions that the returned categories are the valid inputs for get_exposure_mmdb_single_sample_by_medium / get_exposure_mmdb_aggregate_by_medium, which is the obvious reason an agent would need this lookup.

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