This record as markdown: /tools/io-github-heznpc-iconnect/numbers-add-sheet.md
What numbers_add_sheet does on Iconnect
AI agents use numbers_add_sheet to create or update resources in Iconnect, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Iconnect environment.
Why numbers_add_sheet is rated Medium
This tool creates and adds a new sheet to a spreadsheet, which is a reversible write operation. It modifies the structure of a Numbers document by inserting a new sheet, but the action can be undone. This does not retrieve data (Read), execute arbitrary code (Execute), permanently delete data (Destructive), or involve financial transactions (Financial).
From the tool's definition Tool name 'numbers_add_sheet' and description 'Add a new sheet to a Numbers spreadsheet' explicitly indicate creation of a new data structure within an existing document.
Attacks that exploit this kind of access
The rule that runs numbers_add_sheet safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Iconnect, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For numbers_add_sheet, this is the rule to start with:
numbers_add_sheet 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 Iconnect, apply this rule, and every numbers_add_sheet call is checked against it from then on.
Questions about numbers_add_sheet
Add a new sheet to a Numbers spreadsheet. It is categorised as a Write tool in the Iconnect MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Iconnect MCP server in PolicyLayer and add a rule for numbers_add_sheet: 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 Iconnect. Nothing to install.
numbers_add_sheet 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 numbers_add_sheet 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 numbers_add_sheet. 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.
numbers_add_sheet is provided by the Iconnect MCP server (iconnect-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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