updateAppsScriptContent
Writes files into an existing Apps Script project. Default mode
This record as markdown: /tools/a-bonus-google-docs-mcp/updateappsscriptcontent.md
What updateAppsScriptContent does on Claude MCP x Google Docs
AI agents use updateAppsScriptContent 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 updateAppsScriptContent is rated Medium
Writing to an Apps Script project can introduce executable code, making this high severity.
From the tool's definition Writes files into an existing Apps Script project
Attacks that exploit this kind of access
The rule that runs updateAppsScriptContent 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 updateAppsScriptContent, this is the rule to start with:
updateAppsScriptContent 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 updateAppsScriptContent call is checked against it from then on.
Questions about updateAppsScriptContent
Writes files into an existing Apps Script project. Default mode. 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 updateAppsScriptContent: 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.
updateAppsScriptContent 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 updateAppsScriptContent 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 updateAppsScriptContent. 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.
updateAppsScriptContent 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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