trmnl_unbind_room_booking_calendar_device

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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered structurally. The description contributes the useful clarification that only the device-to-calendar playlist link is removed (not the calendar itself), but 'Changes remote state or starts work' is boilerplate that adds no specific behavior, and nothing is said about whether the device must currently be bound or what happens on repeat calls.

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 key action and its scope are front-loaded in the first two lines and the endpoint line is compact. The closing boilerplate ('Changes remote state or starts work. Run only within the user-authorized scope.') is generic and does not earn much of its space.

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 destructive, open-world mutation with nested parameters and no output schema, the description covers what is removed and where, which is the essential part. It omits preconditions (device must be bound?), error/response behavior, and any explicit contrast against the bind tool, leaving gaps an agent would need to guess at.

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 50%, and the three nested path fields (installation_id, id, device_id) plus profile are each described in the schema. The description's API path line shows how the parameters map into the URL, which is mild added value, but it gives no extra semantics for the calendar id vs device id distinction or the 'url' enum alternative.

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 ('Stop showing a calendar on a device') and narrows the scope with 'Removes the room screen from that device playlist only,' which is much clearer than the tool name alone. It does not explicitly name the inverse sibling trmnl_bind_room_booking_calendar_device, so it falls short of full sibling differentiation.

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 pairing with the bind operation is implied by the inverse action, and 'that device playlist only' hints at scope, but there is no explicit when-to-use statement or pointer to trmnl_bind_room_booking_calendar_device. 'Run only within the user-authorized scope' is a generic caution, not actionable routing guidance.

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