get_user_groups

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

No annotations are provided, so the description must disclose behavior. It only states the basic read operation without detailing any side effects, authentication requirements, rate limits, or safety profile. The tool is likely read-only, but this is not confirmed.

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, with the main purpose in the first sentence and additional details in a standard docstring format. No unnecessary text; every sentence adds value.

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?

For a simple retrieval tool with two parameters and an output schema, the description covers the basics. It states the return type (list of groups). Given the output schema exists, more detail is not strictly necessary, but the description could mention any pagination or restrictions.

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 no descriptions (0% coverage), so the description adds value by explaining that 'user_id' is the user's ID and 'realm' is optional with a default. This clarifies the meaning and default behavior beyond the schema alone.

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 the tool's purpose: 'Get all groups for a user.' This specifies the action (get) and resource (groups for a user), distinguishing it from siblings like 'get_group' (single group) or 'add_user_to_group' (adds user to a group).

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 implicitly assumes the user knows when to retrieve groups for a user, but it does not explicitly state when to use this tool versus alternatives. There is no mention of alternatives or when not to use it, which would be helpful given the many sibling tools.

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