snow_install_spoke · Serac MCP: Risk & Policy

WHAT IT DOES

What snow_install_spoke does on Serac

AI agents invoke snow_install_spoke to trigger actions in Serac. 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 snow_install_spoke needs a policy

Installing spokes triggers external operations on the ServiceNow platform — deploying new integration components, activating plugins, and modifying the instance's integration capabilities. This is not a simple write/create of a record but rather an execution of an installation process with system-wide effects.

From the tool's definition Install and manage IntegrationHub Spokes (Jira, Slack, Azure DevOps, etc.)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

snow_install_spoke Rate-limited

snow_install_spoke 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": {
    "snow_install_spoke": {
      "limits": [
        {
          "counter": "snow_install_spoke_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 Serac, so you can run agents against it safely.

FAQ

Questions about snow_install_spoke

What does the snow_install_spoke tool do? +

Install and manage IntegrationHub Spokes (Jira, Slack, Azure DevOps, etc.). It is categorised as a Execute tool in the Serac MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on snow_install_spoke? +

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

What risk level is snow_install_spoke? +

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

Can I rate-limit snow_install_spoke? +

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

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

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

// THE FULL RECORD

snow_install_spoke is one line of Serac's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →