create_onedrive_folder
Create a folder in the user’s OneDrive (optionally nested under parentId) to organize saved files. Returns the folder id + webViewLink. Use that id as update_onedrive_file’s moveToFolderId or as parentId for a nested folder. NOTE: save_to_onedrive’s
This record as markdown: /tools/hermoso/create-onedrive-folder.md
What create_onedrive_folder does on Hermoso
AI agents use create_onedrive_folder to create or update resources in Hermoso, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hermoso environment.
Why create_onedrive_folder is rated Medium
This is a Write operation because it creates a new resource (folder) in OneDrive, modifying the user's cloud storage structure. This is reversible (folders can be deleted) and has no destructive or financial implications.
From the tool's definition create_onedrive_folder creates a folder in the user's OneDrive, which modifies the file system structure by adding a new resource. The description confirms it creates a folder and returns organizational references (folder id, webViewLink) for subsequent use.
Attacks that exploit this kind of access
The rule that runs create_onedrive_folder safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_onedrive_folder, this is the rule to start with:
create_onedrive_folder stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every create_onedrive_folder call is checked against it from then on.
Questions about create_onedrive_folder
Create a folder in the user’s OneDrive (optionally nested under parentId) to organize saved files. Returns the folder id + webViewLink. Use that id as update_onedrive_file’s moveToFolderId or as parentId for a nested folder. NOTE: save_to_onedrive’s. It is categorised as a Write tool in the Hermoso MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Hermoso MCP server in PolicyLayer and add a rule for create_onedrive_folder: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Hermoso. Nothing to install.
create_onedrive_folder is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_onedrive_folder rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create_onedrive_folder. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create_onedrive_folder is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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