Reserve Slot

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

Description labels it as a mutation, consistent with annotations (destructiveHint=true). It adds the precondition but lacks deeper behavioral details such as idempotency, blocking behavior, or side effects beyond the basic mutation indication.

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 concise sentences with no wasted words. The first sentence conveys purpose, the second gives usage condition. It's front-loaded and efficient.

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?

For a tool with 6 parameters, a nested object, no output schema, and a destructive hint, the description covers the usage condition but omits details about return values, parameter semantics, and overwrite behavior. It is adequate but not fully 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% and the description adds no parameter explanations. Key parameters like slotId, regionId, and externalAddress remain undefined, leaving the agent without guidance on required values or formats.

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 clearly states the verb 'reserve' and the resource 'Voila delivery slot'. It distinguishes from the sibling `voila_get_slot_listings` by specifying that it must be called after a slot listing and user confirmation.

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 states that the tool should only be used after a latest slot listing and explicit user confirmation, providing clear usage context. It does not enumerate alternative tools, but the sibling context implies `voila_get_slot_listings` is the precursor.

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