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

Annotations only supply idempotentHint, so the description carries most of the burden, and it does: login required, deletion is irreversible (不可恢复), only the reuse layer is affected, and includeFiles defaults to false with a mandatory separate confirmation and a re-upload consequence afterwards. The only gap is that it does not describe the response or what happens for keys that no longer exist.

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?

Front-loaded with the auth and irreversibility constraints, then the workflow, then the scope boundary, then the file-flag caveat. It is dense and telegraphic with a small amount of redundancy against the schema's includeFiles note, but no sentence is filler.

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 destructive, confirmation-gated deletion tool with no output schema, the description covers authentication, irreversibility, scope boundaries, preconditions, and the risky optional flag. It stops short of describing the returned result, which is the only thing an agent might still need.

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?

With schema coverage at 100%, the schema already documents both parameters; the description still adds real meaning by tying keys to per-item explanation plus user confirmation, and by adding the re-upload consequence of includeFiles=true beyond the schema's own confirmation note.

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 and resource (按用户要求删除跨表单报名复用资料) and immediately bounds the scope: only the reuse layer, not submitted signup forms. It clearly separates this from update_my_signup_profile and from cancel_my_activity_signup by noting that answers already received by the organizer must be changed through the organizer.

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 prescribes an explicit call sequence: get_my_signup_profile → explain each key/question and obtain user confirmation → this tool. It also states an explicit when-not: modifying answers the organizer already received is out of scope and must go through the organizer.

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