List all Magento coding standard rules. Can filter by category (Security, Legacy, PHP, Functions, Templates, Less, etc.), minimum severity (1-10), or search term.
AI agents call list_rules to retrieve information from Magento 2 Coding Standards MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries coding standard rules from the Magento 2 standards database with optional filtering. It has no side effects, does not modify data, execute external operations, or cause destructive changes. It is a pure information retrieval function, making it a Read category tool with low severity—misuse would only expose existing standards documentation without enabling harmful actions.
From the tool's definition Tool description states it 'List[s] all Magento coding standard rules' with filtering capabilities by category, severity, and search term. The verb 'list' and action of retrieving/querying rules without modification indicates a read-only operation.
Documented attack patterns abuse exactly the kind of access list_rules gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Magento 2 Coding Standards MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_rules:
{
"version": "1",
"default": "deny",
"tools": {
"list_rules": {}
}
}list_rules is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all Magento coding standard rules. Can filter by category (Security, Legacy, PHP, Functions, Templates, Less, etc.), minimum severity (1-10), or search term. It is categorised as a Read tool in the Magento 2 Coding Standards MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Magento 2 Coding Standards MCP Server MCP server in PolicyLayer and add a rule for list_rules: 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 Coding Standards MCP Server. Nothing to install.
list_rules is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_rules 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 list_rules. 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.
list_rules is provided by the Magento 2 Coding Standards MCP Server MCP server (midhun-edv/magento-coding-standard-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Magento 2 Coding Standards 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.
7 Magento 2 Coding Standards MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.