proxy_discover

THE RISK

Low Risk

Why proxy_discover needs a policy

This tool performs discovery/enumeration of tools offered by an internal MCP sub-service. It retrieves and returns information about what tools are available but does not execute, create, modify, or delete any data. The blast radius is minimal—the information returned is informational metadata that helps understand the system's capabilities rather than affecting any operational data or state.

From the tool's definition Tool name and description: 'List available tools on an internal MCP sub-service.' The verb 'List' indicates retrieval/enumeration of metadata about available tools with no side effects or modifications.

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

POLICY

How to control proxy_discover

PolicyLayer is an MCP gateway — it sits between your AI agents and Odoo Claude MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for proxy_discover:

policy.json

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

proxy_discover 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 Odoo Claude MCP — 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 proxy_discover

What does the proxy_discover tool do? +

List available tools on an internal MCP sub-service. It is categorised as a Read tool in the Odoo Claude MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on proxy_discover? +

Register the Odoo Claude MCP server in PolicyLayer and add a rule for proxy_discover: 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 Odoo Claude MCP. Nothing to install.

What risk level is proxy_discover? +

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

Can I rate-limit proxy_discover? +

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

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

proxy_discover is provided by the Odoo Claude MCP server (rosenvladimirov/odoo-claude-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Odoo Claude MCP tool call.

Start from Odoo Claude MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →