update_inventory · Sanka MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_inventory does on Sanka MCP Server

AI agents use update_inventory to create or update resources in Sanka MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sanka MCP Server environment.

WHY IT NEEDS A POLICY

Why update_inventory needs a policy

This tool modifies existing inventory records, which is a Write operation. However, severity is high rather than medium due to the inventory management context—incorrect updates could disrupt supply chain operations, order fulfillment, and financial reconciliation. The tool is reversible (can be corrected with subsequent updates), so it does not rise to Destructive.

From the tool's definition Tool name 'update_inventory' and description 'Update an existing inventory in Sanka' indicate a modification operation on inventory data that is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_inventory Rate-limited

update_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.

View as policy code

policy.json

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

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Sanka MCP Server, so you can run agents against it safely.

FAQ

Questions about update_inventory

What does the update_inventory tool do? +

Update an existing inventory in Sanka. It is categorised as a Write tool in the Sanka MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_inventory? +

Register the Sanka MCP Server MCP server in PolicyLayer and add a rule for update_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 Sanka MCP Server. Nothing to install.

What risk level is update_inventory? +

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

Can I rate-limit update_inventory? +

Yes. Add a rate_limit block to the update_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.

How do I block update_inventory completely? +

Set action: deny in the PolicyLayer policy for update_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.

What MCP server provides update_inventory? +

update_inventory is provided by the Sanka MCP Server MCP server (sankahq/sanka-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.