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

Annotations already declare readOnly, idempotent, non-destructive, and open-world, so the safety profile is covered. The description adds value beyond that by enumerating the six possible status outcomes and flagging the manage_token as a required credential, which is exactly the kind of context annotations cannot convey.

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?

Three short sentences with the purpose front-loaded, then the return values, then the credential requirement. Every sentence carries distinct information and nothing is padded.

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 no output schema, the description usefully lists all status values an agent must interpret, and it names the required credential. It stops short of explaining what an agent should do for non-terminal states like counter_proposed or expired, which would be the remaining useful detail for a two-parameter read 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?

Schema coverage is 100% and both parameters carry full descriptions, so the schema does the heavy lifting. The description's mention that manage_token is the one returned at request creation largely repeats the schema text rather than adding format, sourcing, or failure-mode detail.

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?

States a specific verb and resource ('check the status of a booking request') and scopes it to the two request types it covers (preferred times or callback). No sibling tool returns request status, so the agent can tell this apart from propose_times, cancel_booking, or request_booking without opening a schema.

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?

Implies the usage window with 'manage_token that came back when the request was made' and the schema ties request_id to request_booking/propose_times/request_callback, so the agent can infer this is a follow-up check. However, there is no explicit when-to-use/when-not statement and no named alternative for looking up a booking's state.

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