Medium Risk

sorted_set_add_incr

Add member to sorted set or increment its score.

How to control sorted_set_add_incr ↓

What sorted_set_add_incr does on Amazon Bedrock Knowledge Base Retrieval MCP Server

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

Medium Risk

Why sorted_set_add_incr needs a policy

This tool creates or modifies data in a sorted set (Redis-like structure) by adding members or incrementing scores. These are reversible write operations: members can be removed and scores can be decremented. The operation is not destructive (no deletion), not Execute (no command execution or external triggering), and not Financial.

From the tool's definition Tool description states 'Add member to sorted set or increment its score' — direct data modification operations.

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

How to control sorted_set_add_incr

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Bedrock Knowledge Base Retrieval MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for sorted_set_add_incr:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "sorted_set_add_incr": {
      "limits": [
        {
          "counter": "sorted_set_add_incr_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

sorted_set_add_incr 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.

  1. Create a free account and register Amazon Bedrock Knowledge Base Retrieval MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about sorted_set_add_incr

What does the sorted_set_add_incr tool do? +

Add member to sorted set or increment its score. It is categorised as a Write tool in the Amazon Bedrock Knowledge Base Retrieval 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 sorted_set_add_incr? +

Register the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server in PolicyLayer and add a rule for sorted_set_add_incr: 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 Amazon Bedrock Knowledge Base Retrieval MCP Server. Nothing to install.

What risk level is sorted_set_add_incr? +

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

Can I rate-limit sorted_set_add_incr? +

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

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

sorted_set_add_incr is provided by the Amazon Bedrock Knowledge Base Retrieval MCP Server MCP server (awslabs.bedrock-kb-retrieval-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Amazon Bedrock Knowledge Base Retrieval MCP Server tool call.

Start from Amazon Bedrock Knowledge Base Retrieval MCP Server, 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.

805 Amazon Bedrock Knowledge Base Retrieval MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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