update_group

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. The HTTP verb 'PUT' hints at replacement-style semantics, but the description does not mention idempotency, effects on existing group memberships, authentication requirements, or whether this is a full update versus a partial update. For a mutating tool, that is a significant omission.

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 a single sentence plus an endpoint, with no filler and the core verb front-loaded. It is appropriately brief, though so terse that it omits usage context. On the conciseness/structure axis this brevity is a strength, not a weakness.

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 11 parameters, nested objects, and no annotations or output schema, the description should at least explain update semantics, required fields, and likely return behavior. None of that is present. The rich schema explains parameter meanings, but the tool's overall behavior is under-specified for an agent to invoke it confidently.

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 schema already describes 91% of parameters, including enum constraints, defaults, and meanings, so the description's job here is mostly to add context beyond the schema. The one valuable addition is 'PUT /groups/{id}', which clarifies that id goes into the URL path rather than only into the request body. This pushes it slightly above the baseline.

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 is short but does give a clear verb ('Update') and resource ('group'), and the HTTP endpoint helps an agent tell it apart from create_group, get_group, and list_groups at a basic level. However, it never specifies what aspects of the group can be updated—membership, distribution, claim window, etc.—so it is clear but not fully specific.

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?

There is no when-to-use guidance at all. The description never contrasts this tool with create_group, get_group, or list_groups, nor does it state that the id must refer to an existing group. An agent is left to infer the intended use from the tool name alone.

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