numbers_close_document
Close an open Numbers spreadsheet, optionally saving changes.
This record as markdown: /tools/heznpc-airmcp/numbers-close-document.md
What numbers_close_document does on AirMCP
AI agents use numbers_close_document to create or update resources in AirMCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AirMCP environment.
Why numbers_close_document is rated Medium
The tool can persist changes to a spreadsheet by choosing to save when closing. While closing without saving would be read-only, the 'optionally saving changes' clause means the tool has the capability to modify and persist data. This is Write-class (reversible modification).
From the tool's definition Tool name 'numbers_close_document' and description 'Close an open Numbers spreadsheet, optionally saving changes' indicates ability to save modifications to a spreadsheet document.
Attacks that exploit this kind of access
The rule that runs numbers_close_document safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AirMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For numbers_close_document, this is the rule to start with:
numbers_close_document 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 AirMCP, apply this rule, and every numbers_close_document call is checked against it from then on.
Questions about numbers_close_document
Close an open Numbers spreadsheet, optionally saving changes. It is categorised as a Write tool in the AirMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Air MCP server in PolicyLayer and add a rule for numbers_close_document: 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 AirMCP. Nothing to install.
numbers_close_document 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_close_document 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_close_document. 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_close_document is provided by the Air MCP server (airmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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