cancel_order

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

No annotations are provided, so the description carries the full disclosure burden. It only adds that cancellation does not require confirmation, but it omits important behavioral details such as whether the operation is idempotent, what happens to an invalid order state, and whether the cancellation is immediately irreversible.

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?

The description is a single front-loaded sentence with no filler. It states the operation first and then adds a relevant behavioral caveat about confirmation, making every word useful.

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 two-parameter cancellation tool with an output schema, the description is minimally adequate: the purpose is clear and the required parameters are present in the schema. However, it leaves the agent to infer usage boundaries, invalid-state behavior, and side effects, so it is complete enough to invoke but not fully self-sufficient.

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 input schema has 0% description coverage, and the description does not explain account_seq or order_id. The parameter names provide some surface-level meaning, but the meaning of account_seq, its integer-or-string union, and its relationship to the order remain undefined.

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 uses the specific verb 'Cancel' and names the resource 'pending live order', making the operation immediately clear. It also differentiates the tool from siblings like place_order, modify_order, and get_order by stating exactly what action it performs.

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?

There is no explicit when-to-use or when-not-to-use guidance. The phrase 'pending live order' implies a state constraint, but the description does not mention alternatives such as modify_order for adjustments, nor does it clarify what happens if the order is already filled or cancelled.

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