numbers_set_cell
Write a value to a single cell. Numbers and booleans land as native cell types (not
This record as markdown: /tools/io-github-heznpc-iconnect/numbers-set-cell.md
What numbers_set_cell does on Iconnect
AI agents use numbers_set_cell 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_set_cell is rated Medium
This tool creates or modifies data reversibly by writing values to spreadsheet cells. It is not destructive (data can be overwritten or undone), not execute (no arbitrary code/command execution), not financial, and not a read operation.
From the tool's definition Tool name 'numbers_set_cell' and description 'Write a value to a single cell' explicitly indicate a write operation that modifies data in Apple Numbers spreadsheets.
Attacks that exploit this kind of access
The rule that runs numbers_set_cell 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_set_cell, this is the rule to start with:
numbers_set_cell 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_set_cell call is checked against it from then on.
Questions about numbers_set_cell
Write a value to a single cell. Numbers and booleans land as native cell types (not. 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_set_cell: 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_set_cell 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_set_cell 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_set_cell. 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_set_cell 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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