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

No annotations beyond a title, so the description carries the burden. The 'flips its active state' clause valuably signals non-idempotent toggle behavior, but it omits permission requirements, effects on in-flight checks, and reversibility.

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 tight sentence with the operation front-loaded and the toggle semantics in parentheses. No wasted text.

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 one-parameter tool with full schema coverage and no output schema, the description covers what's needed to call it. It could note side effects of toggling a paused monitor, but that is a minor gap.

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?

Single parameter at 100% schema coverage, so the schema already documents the id. The description adds only that the id selects which monitor to pause/resume, matching the schema baseline rather than exceeding 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?

States a specific verb (pause/resume) and resource (monitor) with a clarifying parenthetical. It doesn't explicitly differentiate from update-monitor or the read siblings, but the operation is unambiguous.

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 implies usage (state change via toggle) but offers no explicit when-to-use or when-not guidance, nor names update-monitor as the alternative for setting state directly. An agent must infer that this toggles rather than sets.

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