snow_query_filter

Build ServiceNow encoded query filter

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-query-filter.md

WHAT IT DOES

What snow_query_filter does on Serac

AI agents call snow_query_filter 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_query_filter is rated Low

This tool performs query construction/formatting work. While it aids in data retrieval, the tool itself does not execute queries, fetch data, or produce side effects. It is a helper for preparing query parameters. The actual data retrieval would be a separate operation (likely via enterprise_tool_search or similar).

From the tool's definition Tool name and description indicate 'Build ServiceNow encoded query filter' — this constructs a filter/query object without executing it against a database or external system.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snow_query_filter 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_query_filter, this is the rule to start with:

snow_query_filter Allowed

snow_query_filter 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_query_filter": {}
  }
}

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_query_filter call is checked against it from then on.

FAQ

Questions about snow_query_filter

What does the snow_query_filter tool do? +

Build ServiceNow encoded query filter. 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_query_filter? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_query_filter: 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_query_filter? +

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

Can I rate-limit snow_query_filter? +

Yes. Add a rate_limit block to the snow_query_filter 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_query_filter completely? +

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

snow_query_filter 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.

KEEP EXPLORING

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