release_reservation

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

The description discloses the key side effect: writing to the database and returning units to available stock. It does not describe error cases or repeated-call behavior, but the idempotentHint annotation covers idempotency.

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 redundant wording; the purpose and side effect are front-loaded before the database note.

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 simple one-parameter write action, the description covers purpose, side effect, and parameter adequately. It omits output or error behavior, but no output schema is provided and the operation is straightforward.

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 reservation_code parameter is required and clearly described as the code returned by reserve_item, with a concrete format example.

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 action ('Release an active reservation'), the object ('reservation'), and the effect ('return the units to available stock'), leaving no ambiguity about the tool's purpose.

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 indicates this is a state-changing database write and implies it should be used for reservations that should no longer be active. It does not explicitly contrast with sibling tools like reserve_item or create_order, so usage guidance is strong but not exhaustive.

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