create_spreadsheet
Create an Excel spreadsheet with data, formulas, and formatting
This record as markdown: /tools/cowork-os/create-spreadsheet.md
What create_spreadsheet does on CoWork OS
AI agents use create_spreadsheet 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 create_spreadsheet is rated Medium
This tool creates new spreadsheet files with data and formulas. It is reversible (files can be deleted) and has no financial impact or code execution, making it Write rather than Destructive or Execute.
From the tool's definition Tool description states 'Create an Excel spreadsheet with data, formulas, and formatting' — explicitly a creation action that modifies the file system by introducing new data artifacts.
Attacks that exploit this kind of access
The rule that runs create_spreadsheet 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 create_spreadsheet, this is the rule to start with:
create_spreadsheet 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 create_spreadsheet call is checked against it from then on.
Questions about create_spreadsheet
Create an Excel spreadsheet with data, formulas, and formatting. 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 create_spreadsheet: 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.
create_spreadsheet 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_spreadsheet 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_spreadsheet. 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_spreadsheet 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.
More on CoWork OS, and thousands of servers like it.
This server
Across the catalogue