Create a new label on a Trello board. Args: - board_id (string): The board to create the label on - name (string): Label name - color (string): Label color — one of: green, yellow, orange, red, purple, blue, sky, lime, pink, black, null (no color) Returns: The created label.
AI agents use trello_create_label to create or update resources in Trello MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Trello MCP Server environment.
Creating a label is a Write operation—it adds data to the Trello board in a reversible manner. Labels can be deleted or modified afterwards, so this is not Destructive. The impact is localized to label metadata with no side effects on cards or board structure, making the blast radius low even if misused by an agent.
From the tool's definition Tool description states 'Create a new label on a Trello board' with arguments for board_id, name, and color. This is a create operation that adds a new label, which is a reversible modification.
Attacks that exploit this kind of access
Create a new label on a Trello board. Args: - board_id (string): The board to create the label on - name (string): Label name - color (string): Label color — one of: green, yellow, orange, red, purple, blue, sky, lime, pink, black, null (no color) Returns: The created label. It is categorised as a Write tool in the Trello MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Trello MCP Server MCP server in PolicyLayer and add a rule for trello_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 Trello MCP Server. Nothing to install.
trello_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 trello_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 trello_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.
trello_create_label is provided by the Trello MCP Server MCP server (rdeprey/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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