string_increment_float

THE RISK

Low Risk

Why string_increment_float needs a policy

The description is extremely uninformative and the tool name does not match the server context (Amazon Location Service). It appears to be a local numeric utility operation with no apparent side effects on external data. Without more context, it does not clearly fit Read/Write/Execute/Destructive/Financial. Confidence is low due to the vague and potentially misattributed description.

From the tool's definition Tool name: 'string_increment_float', description: 'Increment float value.'

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

POLICY

How to control string_increment_float

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon Location Service MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for string_increment_float:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "string_increment_float": {
      "limits": [
        {
          "counter": "string_increment_float_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

string_increment_float gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Amazon Location Service 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.

SET A RULE FOR THIS TOOL →

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EXPLORE

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
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 string_increment_float

What does the string_increment_float tool do? +

Increment float value. It is categorised as a Other tool in the Amazon Location Service MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on string_increment_float? +

Register the Amazon Location Service MCP Server MCP server in PolicyLayer and add a rule for string_increment_float: 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 Location Service MCP Server. Nothing to install.

What risk level is string_increment_float? +

string_increment_float is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit string_increment_float? +

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

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

string_increment_float is provided by the Amazon Location Service MCP Server MCP server (awslabs.aws-location-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 Location Service MCP Server tool call.

Start from Amazon Location Service 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 →