Cohort Compare (deprecated → use cohort(depth='compare'))

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is clear. The description adds a deprecation warning, which is useful but does not provide additional behavioral context beyond what annotations offer.

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 extremely short but at the cost of omitting essential information. While it is front-loaded with the deprecation notice, it does not earn its brevity because it leaves the agent without functional guidance.

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 tool has 7 parameters, 0% schema coverage, and an output schema, the description is completely inadequate. It only provides a deprecation directive and does not explain the tool's behavior, return values, or how to use the parameters.

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%, but the description provides no parameter information whatsoever. It only mentions the deprecation and alternative, failing to add meaning to any of the 7 parameters.

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 does not state what the tool does; it only provides a deprecation notice directing to 'cohort(depth="compare")'. The purpose is implied by the tool name 'Cohort Compare', but the description fails to explicitly state the tool's function.

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 explicitly tells the agent to use 'cohort(depth="compare", compare_with=...)' instead, which is a clear alternative. This provides excellent when-not-to-use guidance and a direct replacement.

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