Adjust inventory level by a relative delta (positive = receive stock, negative = remove stock). For inventory managers — use for stock receipts and corrections. Delta is applied atomically.
AI agents use adjust_inventory_level to create or update resources in Sapo — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sapo environment.
This tool modifies inventory levels by applying a delta (increase or decrease). While it changes data, inventory adjustments are typically reversible (a counter-adjustment can restore the previous state), so it falls under Write rather than Destructive. However, misuse could cause significant operational disruption — incorrect stock levels can lead to overselling or blocking legitimate sales — hence high severity.
From the tool's definition Adjust inventory level by a relative delta (positive = receive stock, negative = remove stock). Delta is applied atomically.
Documented attack patterns abuse exactly the kind of access adjust_inventory_level gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sapo, and nothing reaches the server without passing your rules. This is the rule we recommend for adjust_inventory_level:
{
"version": "1",
"default": "deny",
"tools": {
"adjust_inventory_level": {
"limits": [
{
"counter": "adjust_inventory_level_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}adjust_inventory_level 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 inventory level by a relative delta (positive = receive stock, negative = remove stock). For inventory managers — use for stock receipts and corrections. Delta is applied atomically. It is categorised as a Write tool in the Sapo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Sapo MCP server in PolicyLayer and add a rule for adjust_inventory_level: 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 Sapo. Nothing to install.
adjust_inventory_level 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_level 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_level. 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_level is provided by the Sapo MCP server (nguyennguyenit/sapo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sapo, 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.
93 Sapo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.