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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is largely covered. The description adds a meaningful business rule about confirmed dates, but it does not describe side effects, authorization requirements, or what happens to related participants or proposals.

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 definition is two short sentences with the action front-loaded and no wasted wording. The precondition follows immediately and is easy to scan.

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 destructive mutation with five parameters, no output schema, and 0% schema description coverage, the description is too thin. It states the key confirmed-date constraint but leaves parameter meanings, error behavior, and return expectations undocumented.

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%, and five parameters are present, including required eventId, participantId, requestId, and dateId. The description only indirectly implies dateId and provides no meaning for the other identifiers or the optional agent parameter. It therefore does not compensate for the schema's lack of parameter documentation.

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 uses a specific verb and resource: "Remove a proposed date." It also scopes the action to proposed dates rather than confirmed dates, which helps distinguish it from related date workflows. It does not explicitly name sibling tools, so it falls short of the top score.

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 second sentence gives a clear precondition: a confirmed date cannot be removed until it is changed or the event is reopened. That is useful when-not-to-use guidance. It does not name the specific tools to use instead, such as update_event or propose_date.

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