public_access_barcode

THE RISK

Low Risk

Why public_access_barcode needs a policy

This tool generates a barcode image by querying a report endpoint. It retrieves/generates image data based on input parameters without modifying any data. It is a read/fetch operation with minimal blast radius.

From the tool's definition Generate barcode image via /report/barcode/{type}/{value}

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

POLICY

How to control public_access_barcode

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 public_access_barcode:

policy.json

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

public_access_barcode 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 →

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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 public_access_barcode

What does the public_access_barcode tool do? +

Generate barcode image via /report/barcode/{type}/{value}. 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 public_access_barcode? +

Register the Odoo Claude MCP server in PolicyLayer and add a rule for public_access_barcode: 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 public_access_barcode? +

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

Can I rate-limit public_access_barcode? +

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

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

public_access_barcode 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 →