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

Annotations already indicate this is a mutating, non-idempotent operation. The description adds useful behavioral context beyond that: folders 'stay writable by the app' and linking to a production folder has an immediate side effect on where creators' videos land. This helps the agent anticipate consequences.

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 focused sentences with no filler. The primary action is front-loaded, followed by the optional linking behavior and a relevant post-creation property. Every clause contributes useful information.

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 low-complexity mutation with three parameters and no output schema, the description covers the essential context: what is created, where it can be placed, optional linking behavior, and resulting writability. It does not describe return values or error cases, but that is not critical for correct selection and invocation.

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 parameters are already documented structurally. The description adds semantic value by explaining why link_to_folder matters (creators' videos land in the new folder) and clarifying parent_drive_folder placement (root or accessible Drive folder), going slightly beyond the raw 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?

States a specific verb and resource: create a folder in the organization's connected Google Drive. It also adds placement scope (root or accessible Drive folder) and the optional production-folder linking behavior, which clearly differentiates it from generic siblings like create_folder.

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 implies when to use the tool: when you need a Drive folder and optionally want creator videos to land in it via a production-folder link. However, it does not explicitly mention alternatives such as create_folder for non-Drive folders or set_drive_folder for linking existing folders later, and it gives no when-not-to-use guidance.

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