createSheetsCellNote
Creates or replaces a native Google Sheets cell note on a cell or range. Use this when the review text must be attached to a specific cell in the Sheets UI. This is a cell note, not a threaded Drive comment.
This record as markdown: /tools/a-bonus-google-docs-mcp/createsheetscellnote.md
What createSheetsCellNote does on Claude MCP x Google Docs
AI agents use createSheetsCellNote to create or update resources in Claude MCP x Google Docs, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude MCP x Google Docs environment.
Why createSheetsCellNote is rated Medium
Creating or replacing cell notes is a metadata modification that is reversible and has limited blast radius. It does not delete data (Destructive), execute code (Execute), move money (Financial), or trigger external operations (Execute). It is a straightforward write operation that modifies spreadsheet formatting/annotations.
From the tool's definition Tool description states it 'Creates or replaces a native Google Sheets cell note', which is a write operation that modifies spreadsheet metadata.
Attacks that exploit this kind of access
The rule that runs createSheetsCellNote safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude MCP x Google Docs, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For createSheetsCellNote, this is the rule to start with:
createSheetsCellNote 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 Claude MCP x Google Docs, apply this rule, and every createSheetsCellNote call is checked against it from then on.
Questions about createSheetsCellNote
Creates or replaces a native Google Sheets cell note on a cell or range. Use this when the review text must be attached to a specific cell in the Sheets UI. This is a cell note, not a threaded Drive comment. It is categorised as a Write tool in the Claude MCP x Google Docs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Claude MCP x Google Docs MCP server in PolicyLayer and add a rule for createSheetsCellNote: 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 Claude MCP x Google Docs. Nothing to install.
createSheetsCellNote 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 createSheetsCellNote 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 createSheetsCellNote. 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.
createSheetsCellNote is provided by the Claude MCP x Google Docs MCP server (a-bonus/google-docs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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