Adjust the available inventory for a specific inventory_item at a specific location by a delta (positive to increase, negative to decrease).
AI agents use adjust_inventory to create or update resources in Mcp Afip — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Afip environment.
This tool modifies inventory quantities (increases or decreases), which is a reversible write operation. Misuse could cause stock discrepancies affecting order fulfillment, but the operation is correctable, placing it in Write rather than Destructive. Medium severity because incorrect inventory adjustments can have downstream business impact.
From the tool's definition Adjust the available inventory for a specific inventory_item at a specific location by a delta (positive to increase, negative to decrease).
Documented attack patterns abuse exactly the kind of access adjust_inventory gives an agent:
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 adjust_inventory:
{
"version": "1",
"default": "deny",
"tools": {
"adjust_inventory": {
"limits": [
{
"counter": "adjust_inventory_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}adjust_inventory 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.
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Adjust the available inventory for a specific inventory_item at a specific location by a delta (positive to increase, negative to decrease). 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.
Register the Mcp Afip MCP server in PolicyLayer and add a rule for adjust_inventory: 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.
adjust_inventory is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the adjust_inventory 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 adjust_inventory. 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.
adjust_inventory 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.
Start from Mcp Afip, 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.
1300 Mcp Afip tools catalogued and risk-classified — across an index of 43,000+ MCP servers.