Lists change requests with optional filtering and pagination.
AI agents call list_change_requests to retrieve information from Snow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns change request data without creating, modifying, or deleting any records. It performs a read-only operation on ServiceNow's change management module. The optional filtering and pagination parameters are standard query parameters that do not introduce destructive or execution-based behavior.
From the tool's definition Tool name 'list_change_requests' and description 'Lists change requests with optional filtering and pagination' indicate data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access list_change_requests gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Snow, and nothing reaches the server without passing your rules. This is the rule we recommend for list_change_requests:
{
"version": "1",
"default": "deny",
"tools": {
"list_change_requests": {}
}
}list_change_requests is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Lists change requests with optional filtering and pagination. It is categorised as a Read tool in the Snow MCP Server, which means it retrieves data without modifying state.
Register the Snow MCP server in PolicyLayer and add a rule for list_change_requests: 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 Snow. Nothing to install.
list_change_requests is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_change_requests 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.
Set action: deny in the PolicyLayer policy for list_change_requests. 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.
list_change_requests is provided by the Snow MCP server (shunyaai/snow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Snow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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88 Snow tools catalogued and risk-classified — across an index of 43,000+ MCP servers.