calendar_meet_link

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

With no annotations, the description carries the full behavioral burden. It does disclose two useful traits — the value comes from the provider rather than the UI, and it only exists "if it has one" — but says nothing about failure behavior for events without a link, permissions, or what the response looks like.

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?

A single short sentence with the key qualifier ("if it has one") placed early and no wasted words. It is efficient, though bordering on under-specified rather than maximally front-loaded.

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, so the description should say what is actually returned — a URL string, null, or an error — when the event has no Meet link. The parenthetical hints at nullability but leaves the return contract ambiguous for an otherwise simple tool.

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?

There is only one parameter and schema coverage is 100%, so the schema already documents event_id fully. The description adds no semantics beyond what the schema provides, which is the expected baseline for a single well-documented parameter.

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?

Identifies a specific resource — the Google Meet link belonging to a given event — which is distinct from siblings like calendar_add_meet and calendar_remove_meet that modify the meet link. It lacks an explicit verb (read/get), so the agent must infer that this is a retrieval operation from the noun phrase alone.

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?

"(provider only, no UI)" implies the agent should call this rather than opening the event and scraping the link from the calendar UI, which is a soft alternative. However, no sibling is named explicitly and there is no statement about when this is preferable to calendar_get or calendar_open_event.

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