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

Annotations already declare destructiveHint=true, idempotentHint=true and readOnlyHint=false, so the safety profile is covered structurally. The description adds real value by stating that deleted documents cannot be recovered and that the operation is free, but it leaves the 'downloaded files' claim unexplained and says nothing about permissions or what is returned.

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 core warning is front-loaded in two short sentences, but the trailing '무료. [무료]' is a duplicated billing note that wastes space and dilutes an otherwise tight description.

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, single-parameter destructive tool whose annotations already flag destructiveness and idempotency, the description covers the essentials (what it deletes, irreversibility). The unresolved ambiguity about deleting '다운로드 파일' with only a document_id parameter keeps it from being fully complete.

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?

There is a single parameter with 100% schema description coverage, so the schema already carries the meaning of document_id. The description adds nothing about which ID is expected (own document only?) or whether a download-file identifier is also accepted, so the baseline of 3 applies.

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 names a concrete verb and resource ('내 문서...를 삭제합니다'), so an agent can identify it as the deletion tool among siblings such as document_update and document_download. However, it also claims to delete '다운로드 파일' (downloaded files), which muddies the scope since the only input is document_id, and it does not explicitly distinguish itself from other document tools.

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?

No guidance is given on when to choose this tool versus alternatives, and no prerequisites or preconditions (such as ownership, permissions, or confirmation steps) are stated. The only usage-relevant signal is the warning that deletion is irreversible.

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