dev-module-observer-list

WHAT IT DOES

What dev-module-observer-list does on Magento 2 Development MCP Server

AI agents call dev-module-observer-list to retrieve information from Magento 2 Development 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 dev-module-observer-list needs a policy

This tool retrieves and displays observer configuration information from Magento 2 modules without modifying data, executing code, or triggering side effects. It is a pure query/inspection operation, falling squarely into the Read category with low severity.

From the tool's definition Tool name contains 'list' and description states 'List all Magento 2 module observers' - indicates retrieval of observer configuration data with no modification or execution.

Documented attack patterns abuse exactly the kind of access dev-module-observer-list gives an agent:

POLICY

How to control dev-module-observer-list

PolicyLayer is an MCP gateway — it sits between your AI agents and Magento 2 Development MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for dev-module-observer-list:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "dev-module-observer-list": {}
  }
}

dev-module-observer-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 Magento 2 Development 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

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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 dev-module-observer-list

What does the dev-module-observer-list tool do? +

List all Magento 2 module observers. It is categorised as a Read tool in the Magento 2 Development MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on dev-module-observer-list? +

Register the Magento 2 Development MCP Server MCP server in PolicyLayer and add a rule for dev-module-observer-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 Magento 2 Development MCP Server. Nothing to install.

What risk level is dev-module-observer-list? +

dev-module-observer-list is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit dev-module-observer-list? +

Yes. Add a rate_limit block to the dev-module-observer-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 dev-module-observer-list completely? +

Set action: deny in the PolicyLayer policy for dev-module-observer-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 dev-module-observer-list? +

dev-module-observer-list is provided by the Magento 2 Development MCP Server MCP server (elgentos/magento2-dev-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Magento 2 Development MCP Server tool call.

Start from Magento 2 Development 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.

29 Magento 2 Development MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.