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

Annotations already declare readOnly, idempotent, and non-destructive, so the description's 'Reads only; sends nothing' mostly echoes them. It does add genuine behavioral context beyond annotations: the state machine of a quote (hold minutes remaining, whether the arrival was inside the promised window, cancellation outcomes), which tells the agent what the response will report.

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?

Front-loaded with the core action and packs a lot of state information into three tight sentences. The colloquial phrasing ('they said it was not them') and one long enumerative first sentence cost it a point, but nothing is wasted.

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?

An output schema exists, so return values needn't be spelled out, yet the description usefully characterizes the status progression an agent will see. Combined with annotations covering safety and a fully documented single param, the definition is complete enough to invoke correctly; only explicit alternative-routing guidance is absent.

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?

Single required parameter with 100% schema description coverage, so the schema already documents quote_id ('The quote_id price gave'). The description never mentions parameters or adds format/sourcing detail beyond the schema, so the baseline of 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?

States a specific verb+resource ('says where a quote stands') and enumerates the concrete states it reports (priced, waiting on person with hold minutes, booked with tech, cancelled by customer, hold expired) plus post-booking states (on the way, arrived, finished, cancelled). This distinguishes it clearly from siblings like cancel_booking, move_booking, and hold_time.

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?

Explicitly says when to call it: 'Use it after hold_time, or later, to tell the person how it went,' which ties it to a specific sibling and lifecycle point. It does not state when NOT to use it (e.g., prefer move_booking/cancel_booking for changes), so it stops just short of full when/when-not guidance.

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