sheets_conditional_format · Gworkspace MCP: Risk & Policy

WHAT IT DOES

What sheets_conditional_format does on Gworkspace

AI agents use sheets_conditional_format to create or update resources in Gworkspace — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Gworkspace environment.

WHY IT NEEDS A POLICY

Why sheets_conditional_format needs a policy

Conditional formatting rules are reversible modifications to a spreadsheet that alter its appearance and behavior based on data values. This is a Write operation because it creates or modifies formatting metadata without destroying data or executing arbitrary code. Severity is medium because misconfigured rules could obscure data or cause confusion, but the effect is limited to visual formatting and is easily undone.

From the tool's definition "Add conditional formatting" with rule types like NUMBER_GREATER and NUMBER_LESS indicates modification of spreadsheet cell formatting rules, which persists as data changes to the sheet.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sheets_conditional_format Rate-limited

sheets_conditional_format 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sheets_conditional_format": {
      "limits": [
        {
          "counter": "sheets_conditional_format_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Gworkspace, so you can run agents against it safely.

FAQ

Questions about sheets_conditional_format

What does the sheets_conditional_format tool do? +

Add conditional formatting. rule_type: NUMBER_GREATER, NUMBER_LESS,. It is categorised as a Write tool in the Gworkspace MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on sheets_conditional_format? +

Register the Gworkspace MCP server in PolicyLayer and add a rule for sheets_conditional_format: 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 Gworkspace. Nothing to install.

What risk level is sheets_conditional_format? +

sheets_conditional_format is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit sheets_conditional_format? +

Yes. Add a rate_limit block to the sheets_conditional_format 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.

How do I block sheets_conditional_format completely? +

Set action: deny in the PolicyLayer policy for sheets_conditional_format. 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.

What MCP server provides sheets_conditional_format? +

sheets_conditional_format is provided by the Gworkspace MCP server (leoonic/gworkspace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.