nara_children

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

With no annotations, the description carries the full burden, and it does add one genuinely useful operational fact: an API key is required. However, it says nothing about pagination behavior, ordering, or what happens when the parent has no children or an invalid ID, so behavioral disclosure is partial.

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?

Two short sentences with zero filler; the purpose and scope lead, and the auth prerequisite follows. Nothing is redundant or padded.

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?

An output schema exists, so return values need not be described. Still, for an un-annotated tool with zero parameter documentation, the description omits pagination semantics and parent-ID format, leaving real gaps an agent would only discover by trial.

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 0% across three parameters, so the description must compensate and largely does not. 'parent_na_id' is only obliquely implied by 'children of a series or file unit', and 'page'/'limit' are never mentioned at all — an agent gets no hint that results are paged.

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 ('List') and resource ('immediate children of a series or file unit') with precise scope ('one level down'), which is more than a restatement of the name. It does not explicitly differentiate itself from siblings like nara_get_record or nara_search, so it stops short of a 5.

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?

Usage is implied by the scope: call this to walk one level below a known parent. There is no explicit when-to-use/when-not guidance and no named alternative (e.g. nara_search for discovery vs. this for hierarchy traversal), leaving routing to inference.

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