create_stock_adjustment

THE RISK

Medium Risk

Why create_stock_adjustment needs a policy

This tool creates or modifies inventory data in an ERP system. While adjustments can technically be reversed via counter-adjustments, the action itself materially alters financial/operational records. However, since inventory adjustments are typically reversible (unlike deletions) and do not directly move money or delete data, this falls under Write rather than Destructive or Financial.

From the tool's definition Tool name 'create_stock_adjustment' and description 'Create an inventory adjustment (entry/exit/balance) in Omie ERP' indicate creation and modification of inventory records.

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

POLICY

How to control create_stock_adjustment

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_stock_adjustment": {
      "limits": [
        {
          "counter": "create_stock_adjustment_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_stock_adjustment stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Afip — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT 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.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_stock_adjustment

What does the create_stock_adjustment tool do? +

Create an inventory adjustment (entry/exit/balance) in Omie ERP. It is categorised as a Write tool in the Mcp Afip MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_stock_adjustment? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for create_stock_adjustment: 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 Mcp Afip. Nothing to install.

What risk level is create_stock_adjustment? +

create_stock_adjustment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_stock_adjustment? +

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

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

create_stock_adjustment is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

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

CHECK YOUR STACK →