list_widget_instances
List instances of a specific widget placed on portal pages
This record as markdown: /tools/nowaikit-servicenow-ai-toolkit/list-widget-instances.md
What list_widget_instances does on NowAIKit — ServiceNow AI Toolkit
AI agents call list_widget_instances to retrieve information from NowAIKit — ServiceNow AI Toolkit without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_widget_instances is rated Low
This tool queries and returns data about widget instances on portal pages. It performs no side effects, creates no data, executes no external operations, and makes no irreversible changes. It is a straightforward data retrieval operation, making it a Read category risk with low severity due to its limited blast radius if misused.
From the tool's definition Tool name 'list_widget_instances' and description 'List instances of a specific widget placed on portal pages' indicate a read-only query operation that retrieves information without modifying data.
Attacks that exploit this kind of access
The rule that runs list_widget_instances safely
PolicyLayer is an MCP gateway: it sits between your AI agents and NowAIKit — ServiceNow AI Toolkit, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_widget_instances, this is the rule to start with:
list_widget_instances is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect NowAIKit — ServiceNow AI Toolkit, apply this rule, and every list_widget_instances call is checked against it from then on.
Questions about list_widget_instances
List instances of a specific widget placed on portal pages. It is categorised as a Read tool in the NowAIKit — ServiceNow AI Toolkit MCP Server, which means it retrieves data without modifying state.
Register the NowAIKit — ServiceNow AI Toolkit MCP server in PolicyLayer and add a rule for list_widget_instances: 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 NowAIKit — ServiceNow AI Toolkit. Nothing to install.
list_widget_instances 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_widget_instances 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_widget_instances. 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_widget_instances is provided by the NowAIKit — ServiceNow AI Toolkit MCP server (nowaikit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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