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

Annotations already declare destructiveHint=false and idempotentHint=true, so safety and repeatability are covered. The clause 'The saved wording record stays as it is' adds real semantic value by clarifying that dismissal only closes the suggestion and does not alter the underlying wording record.

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 with no filler, and the action is front-loaded before the clarifying note. Efficient, though it is arguably too terse to carry usage context.

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?

An output schema exists, so return values need no explanation, and annotations cover the safety profile. However, for a mutation-style tool the description omits prerequisites (which suggestion states can be dismissed) and any mention of the required identifier.

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 0% for the single suggestionId parameter, and the description never mentions it. The parameter is self-evident from name and type (uuid, required), but the description does nothing to compensate for the coverage gap.

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 ('Dismiss an open suggestion') that is distinguishable from the sibling accept_sendable_change. It does not explicitly name that sibling, but the action is clear enough to route correctly.

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 guidance on when to dismiss versus accept or otherwise act on a suggestion, and no alternative is named. The sibling accept_sendable_change is the obvious counterpart, but the description never references it or any condition for choosing this path.

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