Create/upload Drive file

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

With no annotations, the description carries the full burden. It mentions content optionality and 'blank Google-native file if omitted', but this is ambiguous and potentially misleading depending on mimeType. It doesn't disclose other behaviors like file permissions, account handling, or confirmation of creation.

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 a single sentence that front-loads the purpose and encapsulates a key behavioral nuance. There is no wasted wording or unnecessary detail.

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 no annotations, no output schema, and 5 parameters, the description is adequate but has gaps. It covers purpose and content behavior, but omits return values, parent folder/account context, and usage scenarios. Schema provides param details, but the description doesn't fully compensate for missing annotations.

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 baseline is 3. The description adds value by clarifying the content parameter's optionality and default behavior ('blank Google-native file'). This goes beyond the schema's 'Text content to upload'.

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 file in Drive, with a specific verb and resource. It distinguishes from sibling tools like google_drive_update, delete, or list. The optional content behavior adds specific scope.

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 no guidance on when to use this tool versus alternatives. It doesn't mention exclusions or alternatives, e.g., using google_drive_update for modifying existing files. It simply states what it does without contextual usage.

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