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

Annotations already declare this is a non-read-only, idempotent, non-destructive, closed-world write. The description adds that the destination is '내 문서함' (my document box) and that the call is free — useful context beyond annotations. It does not say whether an existing item is overwritten, whether the saved draft is finalized, or what state it lands in, which is material for a save operation next to document_finalize.

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?

It is very short and front-loads the action, which is good. But '무료. [무료]' states the same thing twice, and given the length budget there is room for a single clarifying clause about when to use it — the space is spent on duplication instead.

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 full schema coverage, an output schema absent, and annotations carrying the safety profile, the minimum bar is met. What is missing is the workflow relationship: whether saving precedes or replaces document_finalize, and whether a saved draft can be retrieved via document_get. For a mutation in a large sibling cluster, that omission leaves real ambiguity.

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 description coverage is 100%, so both job_id and request_id are already documented in the schema, and the baseline of 3 applies. The phrase '작업에서 제안한 초안' loosely ties the operation to job_id but adds no new semantics about either parameter.

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 ('작업에서 제안한 초안을 내 문서함에 저장합니다' — save the job's proposed draft to my documents), which is more than a restatement of the name. However, it never distinguishes this from closely related siblings such as document_finalize, document_create, or document_workflow_answer, so an agent cannot tell which of these actually persists a draft.

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 when-to-use or when-not-to-use guidance. Nothing says whether this must be called after document_workflow_start/answer completes, or how it differs from document_finalize. The only extra signal is the cost note ('무료'), which is pricing, not routing guidance.

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