start_fhir_import_job · Awslabs Valkey MCP: Risk & Policy

WHAT IT DOES

What start_fhir_import_job does on Awslabs Valkey

AI agents invoke start_fhir_import_job to trigger actions in Awslabs Valkey. 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.

WHY IT NEEDS A POLICY

Why start_fhir_import_job needs a policy

This tool initiates an asynchronous operation that loads healthcare data into an AWS HealthLake resource. While the operation itself is reversible (imported data can be deleted), the act of *starting* the job is Execute-class because it: (1) triggers an external AWS service operation, (2) has side effects that depend on arguments (which FHIR data is imported, from where), and (3) is not a simple read/write/delete.

From the tool's definition Tool name contains 'start' and description states 'Start a FHIR import job to load data into HealthLake' — this triggers an external operation (a data import job) whose effects depend on the input data source and job configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

start_fhir_import_job Rate-limited

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.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Awslabs Valkey, so you can run agents against it safely.

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 Awslabs Valkey 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 Awslabs Valkey 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 Awslabs Valkey. 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 Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.