Pause Uptime Kuma Monitor

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

Annotations already provide readOnlyHint=false, idempotentHint=true, and destructiveHint=false, so the safety and mutation profile is known. The description adds the specific behavioral detail that the tool sets active=false, which is helpful, but it does not disclose potential side effects such as whether paused monitors stop all notifications or whether pausing an already-paused monitor errors. No contradiction with annotations exists.

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, stating the primary action and exact state change in the first sentence. The 'Args: monitor_id' line is somewhat redundant with the schema, so it does not fully earn its place, but the overall length is appropriate and easily scannable.

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 single-parameter, state-changing tool with rich annotations and a clear sibling set, the description provides enough information for an agent to invoke it correctly. It might benefit from explicitly noting that pausing is reversible via resume_monitor, but the core behavior, parameter usage, and mutation profile are adequately covered.

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 fully documents the single parameter monitor_id with type, minimum, and description, so schema coverage is 100%. The description only repeats 'Args: monitor_id' without adding meaning beyond the schema, which meets the baseline of 3 but does not exceed it.

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 a specific verb ('Pause') and resource ('heartbeat checks for a monitor'), and the parenthetical 'sets active=false' makes the operational effect unambiguous. This distinguishes it from sibling tools like delete or edit, because pausing is a reversible state change rather than a destructive or structural modification.

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 purpose is clear enough that an agent can infer when to use it: when a monitor should be temporarily suspended from heartbeat checks. However, the description does not explicitly mention when not to use it, nor does it point to the sibling resume_monitor as the counterpart for re-enabling. The usage context is implied rather than stated.

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