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

Annotations already provide readOnlyHint=false and destructiveHint=false. The description adds useful behavioral context: the operation removes the room from whatever group it belongs to and restores independent playback. It does not mention no-op behavior for already-ungrouped rooms, but this is minor for such a simple action.

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 front-loaded sentence with no filler. Every word contributes to explaining the action and outcome.

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 one-parameter tool with annotations covering the safety profile, most essentials are present. However, the contradiction between required room and 'Omit for the default room' leaves real ambiguity about whether a call without room is valid, so the definition is not fully reliable.

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 room parameter's schema description is rich, covering name format and common aliases, but it also says 'Omit for the default room' while the schema marks room as required. This is a direct contradiction that makes parameter usage ambiguous, especially since the tool description itself adds no parameter-level guidance.

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 states a specific action and resource: 'Take a room out of whatever group it is in' and clarifies the intended outcome. It clearly differentiates from the sibling tool group_rooms.

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 makes the use case obvious: use it when a grouped room should play standalone again. It does not explicitly name group_rooms as the inverse alternative or state exclusions, but the context is sufficient.

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