Resolve File Transfer Cancellation

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

Annotations already declare destructiveHint=true and idempotentHint=false, so the safety profile is known. The description adds genuinely non-obvious behavior: the false branch resumes the transfer while true blocks for safe cleanup and lease release, which tells the agent what each choice actually causes.

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?

A single tight sentence with the core behavior front-loaded and the two branch outcomes packed into one clause. Nothing is wasted or 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?

With an output schema, full parameter documentation, and destructive/non-idempotent annotations, the description covers what an agent needs about the two outcomes. Minor gap: it does not say what happens if the request_id is stale or expired, a realistic failure mode for a confirmation-resolution 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 100%, so the baseline is 3, and the description earns above it by explaining the consequence of the cancel boolean (resume vs. wait-for-cleanup) — meaning the schema's 'True only for an explicit y/Y answer' does not convey. The session_id and request_id parameters are left entirely to the schema.

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 (Resolve) and resource (a file-transfer cancellation confirmation), which is distinct from the sibling terminal_begin_file_transfer_cancel that presumably starts the flow. It is clear what the tool does, though 'resolve a confirmation' is slightly abstract without the accompanying true/false semantics.

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 clause 'false resumes and true waits for safe cleanup and lease release' implicitly frames this as the follow-up step to terminal_begin_file_transfer_cancel, but the description never explicitly states that sequencing or names the alternative. Usage is inferable rather than instructed.

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