Manage Drive Access

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

Annotations already convey that this is a mutating, destructive operation. The description adds specificity by naming revoke and transfer_owner, which are the destructive actions, but it does not disclose side effects, reversibility, or notification behavior beyond what the schema already documents.

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, front-loads the tool's purpose, and contains no filler. Every sentence contributes to understanding what the tool does.

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 14-parameter tool with five action branches, the description is somewhat lean, but the input schema richly documents each parameter and the output schema handles return values. The main gap is unresolved overlap with the sibling set_drive_file_permissions tool, which prevents a higher completeness score.

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%, with each parameter individually documented in the input schema. The description adds no parameter-level detail beyond the schema, so the baseline score of 3 is appropriate.

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 identifies the resource (Google Drive file and folder access permissions) and enumerates the supported operations: granting, batch-granting, updating, revoking permissions, and transferring ownership. It is specific about scope, though it does not explicitly differentiate from the sibling set_drive_file_permissions tool.

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 phrasing 'Consolidated tool' and 'all through a single entry point' gives clear context that this is the intended hub for permission management. However, it does not name alternatives or state when to use get_drive_file_permissions or set_drive_file_permissions instead, so exclusion guidance is missing.

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