Respond to Calendar Event

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

The description adds behavioral context beyond annotations: it recommends user confirmation, states the action sends a response to the organizer, mentions case-insensitivity and alias for 'tentative', and notes potential ValidationError. Annotations indicate idempotentHint=true and readOnlyHint=false, which are consistent with the described behavior.

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 well-structured with clear sections (warning, important note, valid responses, args, returns, raises). It is front-loaded with a warning but includes some redundancy (e.g., default value mentioned in description and schema). Overall, it is appropriately sized for the tool's complexity.

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?

The description covers the tool's purpose, parameter semantics, expected output (status confirmation), and possible errors. With a relatively simple tool and an output schema available (context indicates exists), the description is sufficiently complete for agent invocation.

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?

The input schema has 0% description coverage according to context signals, meaning no parameter descriptions in the schema. The tool description compensates by providing an Args section that explains each parameter, including valid values for 'response' and its case-insensitivity. This adds significant meaning beyond the schema.

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 'Respond to a calendar event invitation' and identifies the resource as a calendar event invitation. It distinguishes from sibling tools like calendar_create_event or calendar_delete_event by specifying the response action.

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 provides clear usage context by listing valid response values ('accept', 'decline', 'tentativelyAccept') and notes that it sends a response to the organizer. However, it does not explicitly state when not to use this tool or suggest alternatives for other operations.

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