AI agents use add_tracking to create or update resources in McFlow — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your McFlow environment.
This is a Write operation because it creates/modifies workflow tracking configuration rather than merely reading data. The tracking mechanism stores execution data via HTTP requests, representing a side effect that changes the workflow's behavior.
From the tool's definition The tool 'add_tracking' modifies workflow configuration by adding execution tracking (storing data via HTTP requests), which creates or alters workflow state and behavior in a reversible manner.
Attacks that exploit this kind of access
Add generic workflow execution tracking to a workflow (stores data via HTTP requests). It is categorised as a Write tool in the McFlow MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the McFlow MCP server in PolicyLayer and add a rule for add_tracking: 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 McFlow. Nothing to install.
add_tracking 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 add_tracking 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 add_tracking. 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.
add_tracking is provided by the McFlow MCP server (mckinleymedia/mcflow-mcp). 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.
Teams ship this data inside their own products. See what a licence covers →