snow_create_atf_test_step

Adds a test step to an existing ATF test. Steps define the actions and assertions for testing using the sys_atf_step table.

SERVERSerac SOURCEserac-labs/serac

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/serac/snow-create-atf-test-step.md

WHAT IT DOES

What snow_create_atf_test_step does on Serac

AI agents use snow_create_atf_test_step to create or update resources in Serac, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Serac environment.

RISK

Why snow_create_atf_test_step is rated Medium

This tool creates new data (test steps) in a ServiceNow table, which is a reversible write operation. It does not delete data (Destructive), execute arbitrary scripts (Execute), move money (Financial), or merely read (Read).

From the tool's definition The tool 'Adds a test step to an existing ATF test' via the 'sys_atf_step table' – this creates new records in ServiceNow's Automated Test Framework without deleting or executing arbitrary code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snow_create_atf_test_step safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Serac, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For snow_create_atf_test_step, this is the rule to start with:

snow_create_atf_test_step Rate-limited

snow_create_atf_test_step stays usable, but capped: an agent stuck in a loop can't make hundreds of changes 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_create_atf_test_step": {
      "limits": [
        {
          "counter": "snow_create_atf_test_step_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Serac, apply this rule, and every snow_create_atf_test_step call is checked against it from then on.

FAQ

Questions about snow_create_atf_test_step

What does the snow_create_atf_test_step tool do? +

Adds a test step to an existing ATF test. Steps define the actions and assertions for testing using the sys_atf_step table. It is categorised as a Write tool in the Serac MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on snow_create_atf_test_step? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_create_atf_test_step: 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_create_atf_test_step? +

snow_create_atf_test_step is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit snow_create_atf_test_step? +

Yes. Add a rate_limit block to the snow_create_atf_test_step 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_create_atf_test_step completely? +

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

snow_create_atf_test_step 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.

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