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

Beyond the annotations (read-only, idempotent, non-destructive), the description adds that it supports bulk execution via 'ids' and clarifies that the action is 'get'. This provides useful behavioral context not covered by annotations.

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 concise and to the point, with a clear structure. It avoids unnecessary verbosity and fits within a single line plus a note, making it easy to parse.

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 description lacks critical context such as expected output format or return fields, and does not clarify the 'account' parameter. Given the low complexity and no output schema, the description is incomplete for a full understanding.

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 description gives minimal meaning to parameters: it mentions 'cursor' for list and 'id' for get/activities, but does not explain the 'ids' (beyond bulk) or 'account' parameters. No detailed semantics are provided, leaving the schema mostly unexplained.

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 this is a read-only tool for retrieving Guru account users, with actions for list, get, and activities. It explicitly identifies itself as the 'get' action via the flattened action note, making its purpose unambiguous.

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 does not provide explicit guidance on when to use this tool versus other user-related tools (e.g., guru_users_list, guru_users_activities). It mentions the actions but lacks context on appropriate scenarios or alternatives.

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