update_group

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

With no annotations, the description carries full responsibility for behavioral disclosure. It only states 'Update a group' without explaining whether it performs a full replacement or partial update, if it requires authorization, or what side effects occur. This is insufficient for a mutation tool.

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 concise (one sentence), but it is an under-specification rather than an efficient summary. It merely restates the tool name and lacks structure, such as purpose, parameters, or usage context.

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 three required parameters, one nested object, no output schema, and no annotations, the description is completely inadequate. It fails to explain the update behavior, return value, or any prerequisites, leaving the agent without critical context.

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 high (100%), so baseline is 3. However, the description adds no value beyond the schema; the parameter 'group_data' is described as 'Group representation' in the schema, which is vague, and the description does not clarify its structure or behavior.

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 'Update a group.' clearly states the verb and resource, but it is generic and does not differentiate from other group-related tools like 'update_group_management_permissions' or specify what aspects of the group are updated.

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?

No guidance is provided on when to use this tool versus alternatives. There are many sibling tools for creating, deleting, and managing groups (e.g., 'create_group', 'delete_group', 'add_group_realm_role_mappings'), but the description offers no context or exclusion criteria.

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