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

Annotations already declare destructiveHint=true and idempotentHint=true, so the description should add context that justifies those flags — e.g., that re-enabling alerts can immediately fire notifications for currently failing checks. Instead it only says 'now,' which gestures at immediacy without explaining consequences.

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?

One short sentence, front-loaded with the action and resource, with no filler. It is perhaps too terse for a destructive-flagged mutation, but nothing is wasted.

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 mutation the bar is modest and annotations carry the safety profile, but the description omits the precondition (monitor is muted) and the behavioral consequence of destructiveHint=true. An agent has enough to call it, not quite enough to call it wisely.

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 coverage is 100% for the single 'id' parameter, so the schema already documents it. The description adds no additional meaning about the id (e.g., must reference an existing monitor, or whether a non-muted monitor errors) — baseline 3 applies.

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 verb and resource (turn alerts back on for a monitor), which is clearly distinct from read or update tools. It does not name or differentiate itself from the obvious inverse sibling vs_monitors_mute, so it falls short of a 5.

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 explicit when-to-use guidance, no statement that the monitor must currently be muted, and no mention of the counterpart tool vs_monitors_mute. Usage is only implied by the phrase 'a muted monitor's alerts'.

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