create_topic_directory

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

With no annotations, the description carries the full burden for a mutating tool, yet it says nothing about required permissions, whether folder names must be unique within a topic, whether duplicates are rejected, or what is returned on success. Only the basic mutation is communicated.

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?

A single front-loaded sentence with no wasted words. Its brevity is appropriate, though it is thin rather than maximally efficient given what it omits.

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 simple three-parameter creation tool with complete schema descriptions and no output schema, the description is minimally sufficient. But as an unannotated write operation, an agent gets no signal about permissions, naming constraints, or post-creation behavior.

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 all three parameters including parent_id's 'omit means root' semantics are already documented in the schema. The description adds no meaning beyond it, so the baseline 3 applies.

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 specific verb and resource ('创建文件夹' in 知识库) and the tool name contrasts cleanly with siblings like update_topic_directory, delete_topic_directory and list_topic_directories. It does not explicitly say what distinguishes it from those siblings, but the verb makes the intent unambiguous.

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?

There is no statement of when to use this versus update_topic_directory or when nesting under a parent vs root. The reader infers the create-vs-update split purely from the name, which is implied usage rather than stated guidance.

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