Manage Drive Access

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

Annotations already disclose destructiveHint=true and readOnlyHint=false, so the description does not need to restate these. The description adds some context by naming destructive actions like 'revoking permissions' and 'transferring file ownership', but does not elaborate on side effects (e.g., emails sent, irreversibility) beyond what the schema's parameter descriptions provide. No contradiction with annotations.

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 two sentences long and front-loaded with the core purpose. It avoids unnecessary detail and clearly enumerates capabilities without fluff. Every word earns its place.

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 complex tool with 14 parameters and multiple actions, the description gives a solid high-level overview. The schema covers all parameter semantics and the output schema handles return values. The only minor gap is not mentioning authentication prerequisites or explicitly pointing to read-only sibling tools, but overall the context is sufficient.

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 description coverage is 100%, so the baseline is 3. The description does not add parameter-level semantics; it only lists actions. However, each parameter is thoroughly described in the schema (e.g., 'used by grant_batch', 'Required for update and revoke'), so the description does not need to compensate.

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's purpose: 'Consolidated tool for managing Google Drive file and folder access permissions.' It enumerates specific actions (granting, batch-granting, updating, revoking, transferring ownership), which distinguishes it from sibling read-only tools like get_drive_file_permissions and check_drive_file_public_access.

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 usage for any permission management task ('single entry point'), but it does not explicitly state when to use this tool versus alternatives, such as using get_drive_file_permissions for read-only access checks. No when-not-to-use guidance is provided, leaving usage rules implied rather than explicit.

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