create-label
Create custom label. Returns: new label with id, name, type=
This record as markdown: /tools/199-biotechnologies-mcp-google/create-label.md
What create-label does on MCP Google Workspace
AI agents use create-label to create or update resources in MCP Google Workspace, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Google Workspace environment.
Why create-label is rated Medium
This tool creates a new label in Gmail, which is a reversible write operation. Labels are metadata organizational constructs in Gmail that can be modified or deleted later, so this is Write (not Destructive). The impact is scoped to Gmail organization and has minimal blast radius if misused—creating unwanted labels is inconvenient but easily undone.
From the tool's definition Tool name 'create-label' and description 'Create custom label. Returns: new label with id, name, type=' clearly indicate creation of a new Gmail label.
Attacks that exploit this kind of access
The rule that runs create-label safely
PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Google Workspace, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create-label, this is the rule to start with:
create-label 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 MCP Google Workspace, apply this rule, and every create-label call is checked against it from then on.
Questions about create-label
Create custom label. Returns: new label with id, name, type=. It is categorised as a Write tool in the MCP Google Workspace MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the MCP Google Workspace MCP server in PolicyLayer and add a rule for create-label: 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 MCP Google Workspace. Nothing to install.
create-label 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 create-label 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 create-label. 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.
create-label is provided by the MCP Google Workspace MCP server (199-mcp/mcp-google). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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