accept-calendar-event

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

Annotations already flag the operation as destructive and not read-only. The description adds valuable context by explaining that the organizer is notified by default unless sendResponse is set to false, and it provides an example of the optional body. This goes beyond the annotations and clarifies the side effect of notifying the organizer.

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 description is concise: two sentences and a tip. The purpose is front-loaded, and the tip provides a compact, actionable clarification. No unnecessary words, and the structure flows logically from purpose to usage detail.

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 tool with five parameters and a nested object, the description covers the primary action and key behavior (organizer notification). The schema handles the remaining parameters, including the confirm gate. It does not mention the confirm parameter, but that is documented in the schema, so the description is mostly complete. It could be slightly richer about destructive implications, but the annotations compensate.

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 high (80%), but the description enhances parameter understanding by showing an example of the body parameter with sendResponse and comment, and explicitly explains that sendResponse: false suppresses organizer notification. This adds meaning beyond the schema's default value and property types.

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 clearly states the action: 'Accept the specified event in a user calendar.' It also specifies it accepts a 'meeting invitation' in the tip, which distinguishes it from sibling tools like decline-calendar-event or cancel-calendar-event. This is a specific verb+resource with enough context to understand its scope.

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 does not provide any guidance on when to use this tool versus its many sibling calendar-event actions (e.g., tentatively-accept-calendar-event, decline-calendar-event). It only explains the optional sendResponse behavior, but no selection criteria or alternatives are mentioned, leaving the agent to infer usage from the name alone.

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