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 adds two pieces of context not in the annotations: the deletion cascades to the monitor's alerts, and user confirmation is required before invoking. It does not state whether the deletion is permanent or recoverable, which would be the remaining gap.

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?

Two short sentences, zero filler, with the destructive action and its cascade effect front-loaded before the confirmation instruction. Every sentence carries a distinct, actionable point.

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?

With an output schema present, rich annotations, and a single fully documented parameter, the description only needs to cover the cascade and the confirmation gate — both are stated. The one omission is whether the deletion is irreversible or whether the alerts can be recovered, which matters for a destructive call.

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 100% and the monitor_id property already explains it comes from list_scanner_monitors, so the description need not re-document it. The description adds no extra meaning about the parameter, which is the expected baseline when the schema does the work.

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 ('Delete one of the caller's scanner windows') and adds scope detail ('and its alerts'), which makes it clearly distinct from list_scanner_monitors and save_scanner_monitor in the sibling set. It stops short of naming a sibling alternative, but the verb+resource pairing 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?

It gives a concrete invocation precondition — 'Confirm with the user first' — which tells the agent to gate the call behind user approval, exactly the guidance needed for a destructive tool. It does not offer when-not conditions or point to an alternative (e.g., pausing vs deleting), so it lacks the full routing value of a 5.

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