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

Goes well past the annotations: it discloses a 1-token cost per call, that an XBOSS job is created and results are stored, and that despite validating a draft the call is not purely read-only. That is consistent with readOnlyHint=false and adds side-effect context the annotation cannot convey. The Korean boilerplate about institutional data changes is generic rather than tool-specific.

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 prerequisite is correctly front-loaded and the idempotency rules are precise, but the description runs long with mixed English/Korean boilerplate ('기관 원본의 조회 여부와 별개로...', '기관 데이터 변경은 도구별...') that restates generic policy. The key-recovery rules are useful; the trailing sentences are 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?

There is no output schema, but the description compensates by naming what the validation response returns, and it covers auth prerequisites, cost, and side effects. What is missing is how this validation relates to the downstream save step and to the sibling validators, which matters given the dense sibling set.

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 already 100%, yet the description still adds substance: it explains that request_idempotency_key must be generated before the first request, reused only to recover a lost response, and that provider-specific idempotency_key is a different field to leave untouched. It also names the response fields (missing_required_fields, field_errors), which the schema cannot supply.

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?

States a specific verb and resource: validate an employee qualification acquisition draft without submitting it. The input schema further anchors it against fourinsure__b1__member_qualification__acqs_init ('the form opened by ... not that tool's output'). It does not explicitly distinguish itself from the parallel chg/dependent/los draft_validate siblings, which only the name implies.

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?

Gives one hard prerequisite (prior fourinsure__session__login with the same account_link_id) and detailed idempotency-key lifecycle rules, which is real usage guidance. It never says when to prefer acqs_precheck or acqs_save over this validation step, and no 'do not use when' condition is stated, so routing among siblings is left to inference.

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