get_exposure_mmdb_aggregate_by_medium

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is fully covered by structured data. The description adds nothing beyond that - no sense of what aggregation means, granularity, or how results are grouped.

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?

One clean sentence with the resource and filter front-loaded and no filler. It is efficient but so terse that it omits information an agent needs rather than being admirably compact.

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 described, and annotations carry the safety profile. What is missing is disambiguation from the three sibling MMDB tools and any notion of what a valid medium is - gaps that matter given the crowded sibling set.

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 100%, so the baseline is 3, but the coverage is nominal: the schema text is just "Medium" and the description likewise never enumerates or characterizes valid medium values. The sibling list_exposure_mmdb_mediums exists precisely for that, and neither field points to 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 names a specific verb (Retrieve) and resource (MMDB aggregate records) plus its filter (by medium), so the core operation is unambiguous. However, it does not distinguish this tool from the closely named siblings get_exposure_mmdb_aggregate_by_dtxsid and get_exposure_mmdb_single_sample_by_medium, which the agent must choose between.

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 states what filtering is applied but gives no guidance on when to prefer this aggregate-by-medium view over the aggregate-by-dtxsid view or the single-sample variant. With four near-identical MMDB siblings, explicit routing guidance is exactly what is missing.

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