get-next-id

THE RISK

Low Risk

Why get-next-id needs a policy

This tool queries and returns the next available ID value but explicitly does not reserve or modify any state. It is a pure read operation that returns calculated or lookup data. No data is created, modified, deleted, or irreversibly changed.

From the tool's definition Tool description states 'Get the next available ID... without reserving it'. The action is read-only query that retrieves information without modification, allocation, or side effects.

Documented attack patterns abuse exactly the kind of access get-next-id gives an agent:

POLICY

How to control get-next-id

PolicyLayer is an MCP gateway — it sits between your AI agents and AL Object ID Ninja MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get-next-id:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-next-id": {}
  }
}

get-next-id 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 AL Object ID Ninja 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 AL Object ID Ninja MCP Server tools

Execute start-polling Start the polling service for real-time updates Execute stop-polling Stop the polling service Write authorize-app Authorize an AL app with the backend Write reserve-id Reserve a specific ID for use Write reserve-range Reserve a range of IDs for future use Write sync-object-ids Sync consumed object IDs with the backend Write assign-ids Interactively assign object IDs with collision checking Write batch-assign Batch assign IDs for multiple object types

All 26 AL Object ID Ninja MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

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 get-next-id

What does the get-next-id tool do? +

Get the next available ID for objects or fields without reserving it. It is categorised as a Read tool in the AL Object ID Ninja MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-next-id? +

Register the AL Object ID Ninja MCP Server MCP server in PolicyLayer and add a rule for get-next-id: 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 AL Object ID Ninja MCP Server. Nothing to install.

What risk level is get-next-id? +

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

Can I rate-limit get-next-id? +

Yes. Add a rate_limit block to the get-next-id 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 get-next-id completely? +

Set action: deny in the PolicyLayer policy for get-next-id. 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 get-next-id? +

get-next-id is provided by the AL Object ID Ninja MCP Server MCP server (sshadows/al-objid-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every AL Object ID Ninja MCP Server tool call.

Start from AL Object ID Ninja 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 →