tags_list · Piwik PRO MCP Server MCP: Risk & Policy

WHAT IT DOES

What tags_list does on Piwik PRO MCP Server

AI agents call tags_list to retrieve information from Piwik PRO MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why tags_list needs a policy

The '_list' suffix conventionally indicates a read-only data retrieval operation that queries existing analytics tags. No side effects, data modification, or external execution is implied. Within the Piwik PRO analytics platform context, this retrieves tag metadata and configurations.

From the tool's definition Tool name 'tags_list' indicates a listing/retrieval operation. The description is empty, but the naming convention (verb 'list') and server context (Piwik PRO analytics management) establish that this retrieves existing tag configurations without modification.

Documented attack patterns abuse exactly the kind of access tags_list gives an agent:

POLICY

How to control tags_list

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_list:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "tags_list": {}
  }
}

tags_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Piwik PRO MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Piwik PRO MCP Server tools

Destructive analytics_annotations_delete Delete a user annotation by ID. Destructive tags_delete Delete a tag from Piwik PRO Tag Manager. Destructive tracker_settings_app_delete tracker_settings_app_delete Destructive triggers_delete Delete a trigger from Piwik PRO Tag Manager. Destructive variables_delete variables_delete Execute analytics_query_execute analytics_query_execute Execute versions_publish_draft versions_publish_draft Write analytics_annotations_create analytics_annotations_create

All 66 Piwik PRO MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about tags_list

What does the tags_list tool do? +

tags_list. It is categorised as a Read tool in the Piwik PRO MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on tags_list? +

Register the Piwik PRO MCP Server MCP server in PolicyLayer and add a rule for tags_list: 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.

What risk level is tags_list? +

tags_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit tags_list? +

Yes. Add a rate_limit block to the tags_list 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 tags_list completely? +

Set action: deny in the PolicyLayer policy for tags_list. 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 tags_list? +

tags_list 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.

Enforce policy on every Piwik PRO MCP Server tool call.

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.

CHECK YOUR STACK →

Free to start. No card required.

66 Piwik PRO MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.