Create

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

With no annotations, the description must disclose behavior. It mentions the default parent location and the folder-vs-bookmark distinction, but does not describe return values, error conditions, or side effects. Since it is a creation tool, an agent would benefit from knowing what the response contains or whether creation is idempotent.

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 three short sentences, front-loaded with the core action. Every sentence adds functional information, with no filler or redundancy.

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 lack of an output schema and annotations, the description omits return value and error handling details. It also does not mention the index parameter's behavior beyond the schema. While adequate for basic usage, an agent might need to infer response structure or error handling from other sources.

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 covers all parameters with descriptions, so the description adds limited new meaning. It does clarify the default for parentId (Other bookmarks) and reinforces the url omission rule, but the latter is already in the schema. Overall, the description adds marginal value beyond the schema.

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 clearly states the tool creates a bookmark or a folder, with a specific condition for each (omit url for folder). It is unambiguous and distinct from sibling tools like update, remove, or search, which handle other operations.

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 provides practical usage details such as omitting url to create a folder and the default parent when parentId is omitted. However, it does not explicitly compare against alternative tools like update or move, leaving the when-to-use decision to the agent's inference from the tool name.

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