tigris_put_object · Tigris MCP: Risk & Policy

WHAT IT DOES

What tigris_put_object does on Tigris

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

WHY IT NEEDS A POLICY

Why tigris_put_object needs a policy

This tool creates new objects in a Tigris bucket, which is a reversible write operation. It doesn't delete or destroy data (Destructive), execute arbitrary code (Execute), or move money (Financial). The severity is medium because widespread misuse could fill storage quotas or create unwanted objects, but the operation is reversible via deletion.

From the tool's definition Tool name 'tigris_put_object' and description 'Creates an object in bucket' indicate data creation/modification in object storage.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tigris_put_object Rate-limited

tigris_put_object 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": {
    "tigris_put_object": {
      "limits": [
        {
          "counter": "tigris_put_object_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 Tigris, so you can run agents against it safely.

FAQ

Questions about tigris_put_object

What does the tigris_put_object tool do? +

Creates an object in bucket. It is categorised as a Write tool in the Tigris MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tigris_put_object? +

Register the Tigris MCP server in PolicyLayer and add a rule for tigris_put_object: 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 Tigris. Nothing to install.

What risk level is tigris_put_object? +

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

Can I rate-limit tigris_put_object? +

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

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

tigris_put_object is provided by the Tigris MCP server (@tigrisdata/tigris-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.