ebay_get_category_tree

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

With no annotations, the description carries full burden for behavioral disclosure. It does not state that this is a read-only operation, nor does it mention permissions, rate limits, or data size. Only the action 'get' implies read, but it's insufficient.

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 very short (4 words), which is concise but may be overly minimal. It front-loads the purpose, but lacks additional context that could be added without losing conciseness.

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?

Given the simple input schema and no output schema, the description should still set expectations for the return structure. It does not mention that the output is a hierarchical tree of categories, nor does it reference related tools for getting the default tree ID.

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 description adds no meaning beyond the input schema. The schema already describes 'categoryTreeId' as 'Category tree ID'. The description does not explain how to obtain a valid ID or what values are expected, leaving the agent with only the parameter name.

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 'Get category tree by ID' clearly states the action (get) and resource (category tree), and the name distinguishes it from siblings like ebay_get_default_category_tree_id. However, it doesn't elaborate on what a category tree is, but purpose is clear.

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?

No usage guidelines are provided. There is no mention of when to use this tool versus alternatives like ebay_get_category_suggestions or ebay_get_default_category_tree_id, leaving the agent without guidance.

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