Tentatively accept event invitation

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

Annotations already declare readOnlyHint=false and destructiveHint=false, so the description adds meaningful context: it sets PARTSTAT to TENTATIVE and notifies the organizer. It does not cover all behavioral details (e.g., conflicts or triggers), but adds sufficient value beyond annotations.

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 a single, focused sentence that front-loads the action and includes essential details. No unnecessary words or repetition.

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 lacks information about the return value or success/failure indicators, which is relevant for a mutation tool with no output schema. However, given the tool's simplicity and the presence of sibling context, it still provides an adequate baseline understanding.

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%, so the schema already documents all three parameters. The description does not add additional parameter-specific details, but it provides high-level context about the action, earning a baseline score of 3.

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 verb 'tentatively accept' and the resource 'calendar event invitation', with the specific action of setting PARTSTAT to TENTATIVE and notifying the organizer. It effectively distinguishes from sibling tools like calendar_accept_event and calendar_decline_event.

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 implicitly indicates when to use this tool (for tentative acceptance) through the name and context, but lacks explicit guidance on when to use alternatives or when not to use it. However, sibling tool names provide enough context for an AI agent to differentiate.

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