Create File

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

Annotations already indicate a write operation (readOnlyHint: false) and non-destructive behavior (destructiveHint: false). The description adds valuable behavioral context: it supports creation within shared drives and accepts either direct content or a fileUrl for fetching content. This goes beyond the structured annotations and helps the agent understand key execution modes, though it could disclose more about side effects (e.g., auto-conversion behavior).

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, front-loaded with the primary action, and includes only essential details. There is no redundancy or filler, making it easy to parse and act upon.

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 that an output schema exists (so return values are defined) and annotations cover key safety hints, the description covers the main context: what the tool creates, where it can create, and how content is supplied. It does not address edge cases like precedence when both content and fileUrl are provided, but for a creation tool this is minor and leaves the overall description reasonably complete.

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 86%, which is high, so the baseline is 3. The description adds relational meaning that the schema does not explicitly state: 'content' and 'fileUrl' are mutually exclusive alternatives for supplying file content. This clarifies the intended usage of the parameters and earns a point above baseline.

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 action ('Creates a new file in Google Drive') and adds a distinguishing scope ('supporting creation within shared drives'). This differentiates it from siblings like create_drive_folder or copy_drive_file, which create or copy different entity types.

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: if you need to create a file in Drive, this is the tool. It mentions support for shared drives and content sources, but does not explicitly contrast with alternatives (e.g., when to use import_to_google_doc or create_resumable_upload_session). While the context is clear, exclusions or explicit alternative references are absent.

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