get_workflow

THE RISK

Low Risk

Why get_workflow needs a policy

This tool retrieves and returns instructional information from the server's documentation or knowledge base. It performs a query operation that returns guidance without modifying, executing, or affecting external systems. The worst-case misuse would be retrieving outdated or incorrect workflow steps, which has minimal blast radius compared to code generation or deployment tools on the same server.

From the tool's definition Tool name and description indicate retrieval of workflow instructions: 'Get step-by-step workflow instructions for building, deploying, or testing Stylus contracts.' The verb 'Get' and the informational nature of 'instructions' indicate read-only data…

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

POLICY

How to control get_workflow

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_workflow": {}
  }
}

get_workflow is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register ARBuilder — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_workflow

What does the get_workflow tool do? +

Get step-by-step workflow instructions for building, deploying, or testing Stylus contracts. It is categorised as a Read tool in the ARBuilder MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_workflow? +

Register the ARBuilder MCP server in PolicyLayer and add a rule for get_workflow: 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 ARBuilder. Nothing to install.

What risk level is get_workflow? +

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

Can I rate-limit get_workflow? +

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

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

get_workflow is provided by the ARBuilder MCP server (quantum3-labs/arbuilder). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ARBuilder tool call.

Start from ARBuilder, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →