start_fhir_import_job

THE RISK

High Risk

Why start_fhir_import_job needs a policy

This tool initiates an asynchronous data import job in AWS HealthLake. It executes an external operation (a job) that writes FHIR data into a managed datastore. The primary risk category is Execute because it triggers an external process whose effects depend on the input arguments (what data is imported).

From the tool's definition 'Start a FHIR import job to load data into HealthLake' — triggers an external import operation that loads data into AWS HealthLake

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

POLICY

How to control start_fhir_import_job

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

policy.json

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

start_fhir_import_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 Prometheus 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

High-risk tools in Prometheus 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 →

FAQ

Questions about start_fhir_import_job

What does the start_fhir_import_job tool do? +

Start a FHIR import job to load data into HealthLake. It is categorised as a Execute tool in the Prometheus 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_import_job? +

Register the Prometheus MCP Server MCP server in PolicyLayer and add a rule for start_fhir_import_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 Prometheus MCP Server. Nothing to install.

What risk level is start_fhir_import_job? +

start_fhir_import_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_import_job? +

Yes. Add a rate_limit block to the start_fhir_import_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_import_job completely? +

Set action: deny in the PolicyLayer policy for start_fhir_import_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_import_job? +

start_fhir_import_job is provided by the Prometheus MCP Server MCP server (awslabs.prometheus-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 Prometheus MCP Server tool call.

Start from Prometheus 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 →