List Group Members

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

Annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, so 'Read-only' is largely redundant. The only added behavioral value is disclosing the shape of the result (names and user IDs), which matters because there is no output schema; nothing is said about pagination, privacy of member data, or empty results.

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?

Three short sentences with the purpose front-loaded, followed by safety and prerequisite information. No filler or repetition beyond what a reader needs.

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 one-parameter read tool with full schema coverage and complete annotations, the description covers purpose, the input's origin, and the return contents, so an agent can call it correctly without an output schema. Minor omissions are pagination behavior on large groups and edge cases such as empty groups.

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 coverage is 100% and the single group_id parameter is fully documented in the schema, including the numeric-string format and where to obtain it. The description merely repeats the schema's sourcing hint, adding no new semantics, so the baseline 3 applies.

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 and resource ('List the members of a student group') and adds the returned fields (names and user IDs). The resource clearly separates it from siblings like list_group_files or list_group_discussions, though it never explicitly names those alternatives.

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?

'Get group_id from list_my_groups' gives an explicit prerequisite and points at the sibling that produces the required input. It stops short of stating when not to use this tool or what to do if the group has no members.

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