start_fhir_export_job

THE RISK

High Risk

Why start_fhir_export_job needs a policy

This tool initiates an asynchronous job that exports protected health information (PHI) from AWS HealthLake. While the export itself is not destructive or financial, it is an Execute action because it triggers a long-running external operation with side effects that cannot be trivially undone (data has been read and prepared for export).

From the tool's definition Tool name 'start_fhir_export_job' and description 'Start a FHIR export job to export data from HealthLake' indicate this triggers an external operation (HealthLake export job) whose effects depend on arguments like scope, filters, and destination.

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

POLICY

How to control start_fhir_export_job

PolicyLayer is an MCP gateway — it sits between your AI agents and AWS Step Functions Tool MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for start_fhir_export_job:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "start_fhir_export_job": {
      "limits": [
        {
          "counter": "start_fhir_export_job_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

start_fhir_export_job 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 Step Functions 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 →

Free to start. No card required.

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 Step Functions 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 →
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PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about start_fhir_export_job

What does the start_fhir_export_job tool do? +

Start a FHIR export job to export data from HealthLake. It is categorised as a Execute tool in the AWS Step Functions 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 start_fhir_export_job? +

Register the AWS Step Functions Tool MCP Server MCP server in PolicyLayer and add a rule for start_fhir_export_job: 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 Step Functions Tool MCP Server. Nothing to install.

What risk level is start_fhir_export_job? +

start_fhir_export_job is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit start_fhir_export_job? +

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

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

start_fhir_export_job is provided by the AWS Step Functions Tool MCP Server MCP server (awslabs.stepfunctions-tool-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 Step Functions Tool MCP Server tool call.

Start from AWS Step Functions 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 →