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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile needs no restating. The description adds genuinely new behavior: results default to upcoming bookings only, a default not encoded in the schema's upcomingOnly property.

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?

Two tight sentences with no filler, and the scoping constraint is stated before the default behavior. The first sentence is a bare fragment without a verb, which is slightly awkward but costs no meaning.

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?

With three undocumented parameters, no output schema and no required fields, the description covers the essential default but leaves an agent guessing about how status and limit interact with that default. Adequate, not complete.

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 0%, so the description must carry the parameter burden, but it only implicitly touches upcomingOnly via the default statement. Neither limit (max 20) nor the status enum values receive any explanation of their effect on results.

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 names the resource (bookings) and the exact ownership scope (signed-in user as quester or expert), which is more specific than the title alone. It does not explicitly contrast with near-neighbors like list_my_jobs or list_my_calls, but the 'bookings' resource word does enough to separate it.

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?

It conveys the default condition ('Defaults to upcoming bookings'), which implies how to use the tool without extra arguments. There is no explicit when-to-use/when-not guidance and no named alternative for listing past or cancelled bookings.

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