# list_uib_components List available UI Builder components (macroponents) in the instance Agent View of the PolicyLayer registry record for `list_uib_components`. HTML page: https://policylayer.com/tools/servicenow-mcp-server/list-uib-components ## Facts - Tool: `list_uib_components` - Server: ServiceNow MCP Server (`@aartiq/servicenow-mcp`) — https://policylayer.com/tools/servicenow-mcp-server.md - Install: `npx -y @aartiq/servicenow-mcp` - Homepage: https://github.com/aartiq/servicenow-mcp - Risk category: Read (Low risk) - Registry record: grade F, identity verified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "list_uib_components", "arguments": {} } } ``` ## Why list_uib_components is rated Low This tool queries and returns a list of UI Builder components from the ServiceNow instance. It performs a read-only operation that retrieves configuration data without modifying, executing, deleting, or committing any resources. The blast radius of misuse is minimal—an AI agent could retrieve component metadata but cannot harm the instance or data through enumeration alone. From the tool's own definition: "Tool name 'list_uib_components' and description 'List available UI Builder components' indicate a retrieval operation with no side effects." ## Use case AI agents call list_uib_components to retrieve information from ServiceNow MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ServiceNow MCP Server: ```json { "version": "1", "default": "deny", "tools": { "list_uib_components": {} } } ``` ## Other tools on ServiceNow MCP Server (364) - `delete_attachment` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-attachment.md - `delete_system_property` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-system-property.md - `delete_uib_page` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/delete-uib-page.md - `remove_user_from_group` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/remove-user-from-group.md - `rollback_deployment` — Destructive — https://policylayer.com/tools/servicenow-mcp-server/rollback-deployment.md - `commit_changeset` — Execute — https://policylayer.com/tools/servicenow-mcp-server/commit-changeset.md - `create_business_rule` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-business-rule.md - `create_flow_action` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-flow-action.md - `create_scheduled_job` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-scheduled-job.md - `create_script_include` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-script-include.md - `create_ui_action` — Execute — https://policylayer.com/tools/servicenow-mcp-server/create-ui-action.md - `execute_background_script` — Execute — https://policylayer.com/tools/servicenow-mcp-server/execute-background-script.md - `fire_event` — Execute — https://policylayer.com/tools/servicenow-mcp-server/fire-event.md - `ml_detect_anomalies` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-detect-anomalies.md - `ml_train_anomaly_detector` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-anomaly-detector.md - `ml_train_change_risk` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-change-risk.md - `ml_train_incident_classifier` — Execute — https://policylayer.com/tools/servicenow-mcp-server/ml-train-incident-classifier.md - `publish_changeset` — Execute — https://policylayer.com/tools/servicenow-mcp-server/publish-changeset.md - `run_aggregate_query` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-aggregate-query.md - `run_atf_suite` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-atf-suite.md - `run_atf_test` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-atf-test.md - `run_discovery_scan` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-discovery-scan.md - `run_security_playbook` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-security-playbook.md - `run_transform_map` — Execute — https://policylayer.com/tools/servicenow-mcp-server/run-transform-map.md - `scan_vulnerabilities` — Execute — https://policylayer.com/tools/servicenow-mcp-server/scan-vulnerabilities.md - `switch_update_set` — Execute — https://policylayer.com/tools/servicenow-mcp-server/switch-update-set.md - `test_flow` — Execute — https://policylayer.com/tools/servicenow-mcp-server/test-flow.md - `trigger_agentic_playbook` — Execute — https://policylayer.com/tools/servicenow-mcp-server/trigger-agentic-playbook.md - `trigger_flow` — Execute — https://policylayer.com/tools/servicenow-mcp-server/trigger-flow.md - `trigger_scheduled_job` — Execute — https://policylayer.com/tools/servicenow-mcp-server/trigger-scheduled-job.md - …and 334 more: https://policylayer.com/tools/servicenow-mcp-server.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=servicenow-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/servicenow-mcp-server