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

Annotations indicate readOnlyHint=false, destructiveHint=false, and idempotentHint=false, but the description adds no behavioral context. It does not explain side effects, prerequisites, or whether the monitor must be paused. The description merely restates the tool's name without enriching the annotations.

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 short sentence), which is efficient for a simple tool, but it is under-specified rather than appropriately concise. It lacks any supporting details that could be included without bloating, so the brevity is not a strength in this case.

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's simplicity, the description is technically complete in naming the action, but it fails to provide necessary context. It does not clarify what 'resume' means (e.g., reactivating a paused monitor), nor does it address the relationship to sibling tools like monitors-pause or monitors-resume_action. An agent may not know when to invoke this over alternatives.

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 input schema defines monitorId as a UUID, but the description provides no additional meaning about it. With schema description coverage at 0%, the description was expected to compensate, but it does not mention the parameter at all, leaving the agent to infer its purpose solely from the schema.

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 'Resume a monitor' clearly identifies the action (resume) and the resource (monitor), effectively distinguishing it from siblings like monitors-resume_action, which resumes a specific action. It is a specific verb+resource pairing, though it could be slightly clearer about what resuming entails.

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 provides no guidance on when to use this tool versus alternatives. It does not mention that it should be used only for paused monitors, nor does it reference related tools like monitors-pause or monitors-resume_action. There is no context for decision-making.

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