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

With no annotations present, the description carries the full burden of behavioral disclosure. It explicitly states the non-obvious side effect that already-imported transactions are retained and remain visible in transactions_list and the summary. This is valuable transparency beyond the obvious delete action.

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 the action front-loaded and the key consequence stated immediately after. Every sentence earns its place, and there is no unnecessary detail.

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 deletion tool, the description conveys the main action, the scope, and the important retention behavior. The only meaningful gap is that it does not tell the agent how to discover valid file names, but this is minor given the sibling bank_files tool.

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 coverage is 0% and the description never explains what the required 'name' parameter refers to or how to obtain a valid value. It implies the name identifies the statement file, but it does not connect the parameter to the file listing or give examples, so the agent must infer the semantic meaning.

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 states a specific verb ('Delete'), a specific resource ('statement file stored for your token'), and the scope of the operation. It clearly distinguishes this tool from upload/import siblings by focusing on removing a stored file rather than creating or importing one.

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 intended use is implied by the deletion semantics and the sibling context, but the description gives no explicit guidance on when to use this tool versus alternatives, or when not to use it. It also does not mention consulting bank_files to find the file name to delete.

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