sharepoint_action
Use the connected SharePoint account to search sites and manage drive items.
This record as markdown: /tools/cowork-os/sharepoint-action.md
What sharepoint_action does on CoWork OS
AI agents use sharepoint_action to create or update resources in CoWork OS, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CoWork OS environment.
Why sharepoint_action is rated Medium
While the tool includes search capability (Read), the explicit mention of 'manage drive items' indicates it can perform reversible modifications to SharePoint resources—creating, updating, moving, or organizing files and folders. This is a Write-category action. It is not Destructive because 'manage' typically implies reversible operations rather than permanent deletion.
From the tool's definition Tool description states 'manage drive items' on SharePoint, which implies creating, modifying, or organizing files/folders. Combined with 'search sites', this covers both read and write operations.
Attacks that exploit this kind of access
The rule that runs sharepoint_action safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sharepoint_action, this is the rule to start with:
sharepoint_action 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 CoWork OS, apply this rule, and every sharepoint_action call is checked against it from then on.
Questions about sharepoint_action
Use the connected SharePoint account to search sites and manage drive items. It is categorised as a Write tool in the CoWork OS MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the CoWork OS MCP server in PolicyLayer and add a rule for sharepoint_action: 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 CoWork OS. Nothing to install.
sharepoint_action 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 sharepoint_action 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 sharepoint_action. 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.
sharepoint_action is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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