update_a_group

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

Annotations already provide destructiveHint: false, idempotentHint: true. The description adds 'Idempotent' and 'Modifies an existing record in place', which reinforces the annotations but does not disclose additional behavioral traits beyond what annotations already state.

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 short and front-loaded with the write emoji and method. However, it redundantly repeats 'Update a group' after the title. Overall, it is concise with minimal waste.

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 nested body with many fields, the description is minimal. It lacks explanation of partial vs full updates (though idempotentHint suggests PUT semantics). Absence of output schema is acceptable but more context on update behavior would be helpful for an agent.

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?

All parameters (id and body) have descriptions in the input schema, so schema coverage is 100%. The tool description does not add further meaning or examples for the parameters. Baseline score of 3 is appropriate.

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 'Update a group' and 'Modifies an existing record in place', with the verb 'update' and resource 'Groups'. It distinguishes from siblings like create_a_new_group and delete_a_group_1 by specifying modification of an existing record.

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 implies usage for updating an existing group via 'Modifies an existing record in place', but does not provide explicit when-to-use or when-not-to-use guidance compared to other update tools among siblings. No exclusions or alternatives are mentioned.

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