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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description does add genuinely useful behavior beyond that: it is callable without credentials and each call costs one token ('호출마다 토큰 1소진'), a real cost signal. The long idempotency-key paragraph is largely inapplicable to a read-only public list and adds confusion rather than transparency.

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 actual purpose is a single buried clause; most of the text is idempotency boilerplate for authenticated calls that this anonymous list tool does not use, plus an untranslated Korean token-cost note appended at the end. The front-loaded sentence is about auth rather than what the tool returns.

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?

Annotations and a 100%-covered two-param schema cover the mechanics, and there is no output schema to explain. Still, for a paginated list endpoint the description says nothing about page size, ordering, total counts, or what a notice record contains, and the 'page' parameter is left entirely to the schema.

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 the baseline is 3, but the schema's own description of request_idempotency_key explicitly defers to the tool description ('see the tool description'). The description fills that in: reuse the key only to recover a lost response, use a new key for a new execution, and don't confuse it with a provider-specific idempotency_key.

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 sentence 'List public NHIS notices' gives a specific verb and resource, and the 'No credential or login required' opener frames it as an anonymous endpoint. However, it never distinguishes itself from the closely-named siblings nhis_edi__public__forms__list and nhis_edi__public__resources__list, so the agent must infer which public collection to pick.

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?

The description implies usage by stating no login is needed, which tells an agent this is a pre-auth/public call. But there is no explicit when-to-use vs the public forms/resources siblings, and the bulk of the guidance concerns an idempotency key for 'authenticated calls' that the same text says is unavailable to anonymous calls — leaving the actual selection rule unclear.

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