checkout_timeslots

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

No annotations are provided, so the description carries the full burden; it does disclose the authentication requirement, which is genuinely useful behavioral context. However it doesn't state side-effect freedom, whether slots are user/order-specific, or any rate/scope constraints, leaving notable gaps for a no-annotation tool.

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 short sentences with no filler, and the subject is stated before the login prerequisite. Nothing is redundant.

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?

Complexity is minimal: no parameters, and an output schema exists so return values need not be described. The main remaining gap is disambiguation from sibling slot/delivery tools, which the description doesn't address.

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?

The tool takes zero parameters, and 100% schema coverage means there is no parameter meaning for the description to add. Baseline 4 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 names the resource (checkout timeslots) but is a bare noun phrase with no verb and no scope, so it's unclear whether it lists slots, reserves them, or reports availability. It also doesn't differentiate from sibling tools such as my_delivery_slots, delivery_info, or fulfilment_selection, which an agent would need to choose between.

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?

The only guidance is a prerequisite ('Requires login'), with no statement of when to call this versus my_delivery_slots or the other checkout_* tools. Usage is implied by the name alone.

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