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

The description discloses behavior beyond the annotations: each call consumes one token, an XBOSS job is created and its result stored, and the call is explicitly not pure read-only, which is consistent with readOnlyHint=false. The idempotency recovery semantics (reuse key only to recover a lost response, new key for a new execution) are valuable context an agent could not infer from the annotations alone. It is slightly diluted by boilerplate closing sentences in Korean.

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 front-loaded, which is good, but the entry is long and mixes English and Korean, with generic closing lines about institutional data changes that add little. Some redundancy exists between the idempotency paragraph and the schema 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 two-parameter initialization step with no output schema, the description covers authentication prerequisites, idempotency handling, token cost, and side effects (job creation, result persistence, non-read-only nature). What remains missing is any acknowledgment of what the call returns or how it relates to the subsequent acqs_draft_validate/save steps.

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 baseline is 3, but the description adds real meaning for request_idempotency_key — when to generate it, when to reuse it, and that a provider-specific idempotency_key is a different field. The in-schema text for that parameter only points back to the description, so the description is doing necessary work. The account_link_id guidance is already fully covered by 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 clearly states a specific verb and resource: 'Initialize employee qualification acquisition declaration.' That distinguishes it from sibling step tools like acqs_draft_validate and acqs_save, though it never names them directly. An agent can infer its role as the first step in the acqs flow.

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 gives one explicit prerequisite ('REQUIRES prior fourinsure__session__login call with same account_link_id') and explains when to reuse versus regenerate the idempotency key. However, it does not say when to choose this init over related siblings (acqs_precheck, acqs_member_lookup, chg_init), so guidance on alternatives is only implied by the resource name.

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