list_documents

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

With no annotations, the description carries the burden of explaining behavior. It clearly conveys that this is a read-only listing operation and discloses the important no-category fallback. It does not mention pagination, ordering, or output format, but for a simple list tool the core behavior is transparent enough.

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 description is a single, front-loaded sentence with no filler. Every word earns its place, and the conditional behavior is stated compactly.

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 tool with one optional parameter and no output schema, this is a reasonably complete description. It covers both invocation modes and the resource scope, though it could optionally clarify the returned item shape or how it differs from list_knowledge_topics.

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?

The schema already describes the category parameter, so the baseline is 3. The description adds value by explaining that omitting the category changes the result to a category list, which clarifies the parameter's optional role beyond the schema's simple definition.

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 clear action ('List') on a specific resource ('documentation pages in a category') and also covers the no-argument fallback ('or list all categories'). This makes the tool's dual behavior immediately distinguishable from siblings like get_document, search_docs, and list_knowledge_topics.

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 gives a clear condition for the two usage modes: provide a category to list its pages, or omit it to list categories. It does not explicitly name alternatives or when-not-to-use scenarios, but the conditional guidance is enough to route an agent in most cases.

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