Copy a tag, optionally to another app and with triggers.
AI agents use tags_copy to create or update resources in Piwik PRO MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Piwik PRO MCP Server environment.
This tool creates a new tag by copying an existing one, which is a reversible modification operation. It does not delete data (not Destructive), does not execute arbitrary code (not Execute), involves no financial transactions (not Financial), and is not a simple read operation.
From the tool's definition Tool name 'tags_copy' and description 'Copy a tag, optionally to another app and with triggers' indicates creation of a new tag resource (duplication of existing data).
Documented attack patterns abuse exactly the kind of access tags_copy gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Piwik PRO MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for tags_copy:
{
"version": "1",
"default": "deny",
"tools": {
"tags_copy": {
"limits": [
{
"counter": "tags_copy_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}tags_copy 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.
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Copy a tag, optionally to another app and with triggers. It is categorised as a Write tool in the Piwik PRO MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Piwik PRO MCP Server MCP server in PolicyLayer and add a rule for tags_copy: 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 Piwik PRO MCP Server. Nothing to install.
tags_copy 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 tags_copy 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 tags_copy. 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.
tags_copy is provided by the Piwik PRO MCP Server MCP server (piwikpro/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Piwik PRO MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
66 Piwik PRO MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.