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pjosols
by pjosols

files_create_folder

Create a new folder on Fastmail Files using WebDAV. Provide the folder path to organize your file storage.

Instructions

Create a folder on Fastmail Files (WebDAV).

Args: path: Path of the new folder (e.g. "/Documents/NewFolder").

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

The description lacks behavioral details such as whether intermediate directories are created, error handling on existing folders, or authentication requirements. With no annotations, this is a significant gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences efficiently convey the tool's purpose and parameter, with the key action front-loaded and no extraneous text.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple folder creation tool with one parameter, the description is minimally adequate but lacks completeness in explaining behavior (e.g., success/error responses, side effects). The existence of an output schema mitigates some need but is not described.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds context to the 'path' parameter with an example, but does not specify formatting, allowed characters, or path constraints beyond the schema's basic type and required flag.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'Create a folder on Fastmail Files (WebDAV)', providing a specific verb and resource. It distinguishes from sibling file tools like files_upload, files_delete, etc., which handle different operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given on when to use this tool versus alternatives (e.g., files_upload for content, files_move for renaming). There is no mention of prerequisites or exclusions.

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

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