modify-replication-group-shard-configuration

WHAT IT DOES

What modify-replication-group-shard-configuration does on AWS Well-Architected Security Assessment Tool MCP Server

AI agents invoke modify-replication-group-shard-configuration to trigger actions in AWS Well-Architected Security Assessment Tool MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

THE RISK

High Risk

Why modify-replication-group-shard-configuration needs a policy

The tool name suggests it modifies the shard configuration of a replication group (likely ElastiCache or similar AWS service). Modifying shard configuration is a significant infrastructure operation that can reshape data distribution, trigger resharding, and affect availability.

From the tool's definition Tool name: modify-replication-group-shard-configuration; description is empty

Documented attack patterns abuse exactly the kind of access modify-replication-group-shard-configuration gives an agent:

POLICY

How to control modify-replication-group-shard-configuration

PolicyLayer is an MCP gateway — it sits between your AI agents and AWS Well-Architected Security Assessment Tool MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for modify-replication-group-shard-configuration:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "modify-replication-group-shard-configuration": {
      "limits": [
        {
          "counter": "modify-replication-group-shard-configuration_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

modify-replication-group-shard-configuration stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register AWS Well-Architected Security Assessment Tool MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

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EXPLORE

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Go deeper

Govern code and CI agents → Branch allowlists, approval on merges, and rate caps on the build and pipeline tools agents trigger.
High-risk tools in AWS Well-Architected Security Assessment Tool MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about modify-replication-group-shard-configuration

What does the modify-replication-group-shard-configuration tool do? +

modify-replication-group-shard-configuration. It is categorised as a Execute tool in the AWS Well-Architected Security Assessment Tool MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on modify-replication-group-shard-configuration? +

Register the AWS Well-Architected Security Assessment Tool MCP Server MCP server in PolicyLayer and add a rule for modify-replication-group-shard-configuration: 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 AWS Well-Architected Security Assessment Tool MCP Server. Nothing to install.

What risk level is modify-replication-group-shard-configuration? +

modify-replication-group-shard-configuration is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit modify-replication-group-shard-configuration? +

Yes. Add a rate_limit block to the modify-replication-group-shard-configuration 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 modify-replication-group-shard-configuration completely? +

Set action: deny in the PolicyLayer policy for modify-replication-group-shard-configuration. 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 modify-replication-group-shard-configuration? +

modify-replication-group-shard-configuration is provided by the AWS Well-Architected Security Assessment Tool MCP Server MCP server (awslabs.well-architected-security-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 AWS Well-Architected Security Assessment Tool MCP Server tool call.

Start from AWS Well-Architected Security Assessment Tool MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

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