snow_file_download

Download an attachment

SERVERSerac SOURCEserac-labs/serac

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/serac/snow-file-download.md

WHAT IT DOES

What snow_file_download does on Serac

AI agents call snow_file_download to retrieve information from Serac without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why snow_file_download is rated Low

This tool retrieves/fetches an attachment from ServiceNow without creating, modifying, or destroying data. It is a Read operation. Severity is medium rather than low because downloaded attachments may contain sensitive information (credentials, PII, business data) that could be exfiltrated if an AI agent misuses this tool, but the tool itself performs no destructive or irreversible action.

From the tool's definition Tool name 'snow_file_download' and description 'Download an attachment' indicate retrieval of existing data without modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snow_file_download 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_file_download, this is the rule to start with:

snow_file_download Allowed

snow_file_download is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about snow_file_download

What does the snow_file_download tool do? +

Download an attachment. It is categorised as a Read tool in the Serac MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on snow_file_download? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_file_download: 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_file_download? +

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

Can I rate-limit snow_file_download? +

Yes. Add a rate_limit block to the snow_file_download 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_file_download completely? +

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

snow_file_download 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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