Get Event Invitee

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so safety behavior is covered. The description does add genuinely useful auth context ("Required scopes: scheduled_events:read"), but does not disclose error behavior for unknown UUIDs, account-selection semantics, or anything else beyond that.

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?

It is short and front-loaded, but the opening sentence is pure title repetition and the scope note is the only substantive content. Minimal without being bloated, yet part of its length is unearned.

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?

No output schema exists, and the description says nothing about what a fetched invitee record contains or how it relates to the parent event. For a simple read tool with full schema coverage and clear annotations, this is passable but leaves the agent guessing about the return payload.

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 event_uuid, invitee_uuid, and the account parameter are already documented in the schema. The description adds no parameter meaning on top of that, so baseline 3 applies.

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's first sentence simply restates the tool name/title, and "Reads Calendly data" is generic filler. It never distinguishes this single-invitee getter from siblings like get_event, list_event_invitees, or get_transcript, so an agent gains little beyond the name itself.

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 when-to-use guidance, no conditions, and no mention of alternatives such as list_event_invitees for enumerating invitees. The only hint is the required scope, which is prereq context rather than usage direction.

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