# snow_create_ui_policy_action Create a UI policy action to control field behavior (visible/mandatory/readonly) when a UI policy condition is met. Requires the parent UI policy sys_id and the target table name. Agent View of the PolicyLayer registry record for `snow_create_ui_policy_action`. HTML page: https://policylayer.com/tools/serac/snow-create-ui-policy-action ## Facts - Tool: `snow_create_ui_policy_action` - Server: Serac (`serac-labs/serac`) — https://policylayer.com/tools/serac.md - Homepage: https://github.com/serac-labs/serac - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "snow_create_ui_policy_action", "arguments": {} } } ``` ## Why snow_create_ui_policy_action is rated Medium This tool creates new UI policy actions in ServiceNow, which is a write operation that modifies system configuration. While reversible (UI policies can be deleted or edited), the blast radius is high because misconfigured UI policies could hide critical fields, make sensitive fields mandatory, or lock read-only fields, potentially disrupting business processes or enabling social engineering attacks. From the tool's own definition: "Tool name contains 'create' and description states 'Create a UI policy action' which modifies ServiceNow configuration. The action controls field behavior (visible/mandatory/readonly), representing reversible configuration changes to the enterprise system." ## Use case AI agents use snow_create_ui_policy_action to create or update resources in Serac, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Serac environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Serac: ```json { "version": "1", "default": "deny", "tools": { "snow_create_ui_policy_action": { "limits": [ { "counter": "snow_create_ui_policy_action_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Serac (431) - `snow_cleanup_test_artifacts` — Destructive — https://policylayer.com/tools/serac/snow-cleanup-test-artifacts.md - `snow_delete_attachment` — Destructive — https://policylayer.com/tools/serac/snow-delete-attachment.md - `snow_inbound_email_action` — Destructive — https://policylayer.com/tools/serac/snow-inbound-email-action.md - `snow_pa_indicator_manage` — Destructive — https://policylayer.com/tools/serac/snow-pa-indicator-manage.md - `snow_rollback_deployment` — Destructive — https://policylayer.com/tools/serac/snow-rollback-deployment.md - `snow_workflow_transition` — Destructive — https://policylayer.com/tools/serac/snow-workflow-transition.md - `enterprise_tool_execute` — Execute — https://policylayer.com/tools/serac/enterprise-tool-execute.md - `snow_auto_resolve_incident` — Execute — https://policylayer.com/tools/serac/snow-auto-resolve-incident.md - `snow_automate_threat_response` — Execute — https://policylayer.com/tools/serac/snow-automate-threat-response.md - `snow_batch_request` — Execute — https://policylayer.com/tools/serac/snow-batch-request.md - `snow_change_manage` — Execute — https://policylayer.com/tools/serac/snow-change-manage.md - `snow_cicd_deploy` — Execute — https://policylayer.com/tools/serac/snow-cicd-deploy.md - `snow_collect_metric` — Execute — https://policylayer.com/tools/serac/snow-collect-metric.md - `snow_confirm_script_execution` — Execute — https://policylayer.com/tools/serac/snow-confirm-script-execution.md - `snow_convert_es6_to_es5` — Execute — https://policylayer.com/tools/serac/snow-convert-es6-to-es5.md - `snow_convert_to_es5` — Execute — https://policylayer.com/tools/serac/snow-convert-to-es5.md - `snow_create_mobile_action` — Execute — https://policylayer.com/tools/serac/snow-create-mobile-action.md - `snow_create_vulnerability_scan` — Execute — https://policylayer.com/tools/serac/snow-create-vulnerability-scan.md - `snow_custom_api` — Execute — https://policylayer.com/tools/serac/snow-custom-api.md - `snow_elevate_role` — Execute — https://policylayer.com/tools/serac/snow-elevate-role.md - `snow_employee_offboarding` — Execute — https://policylayer.com/tools/serac/snow-employee-offboarding.md - `snow_employee_onboarding` — Execute — https://policylayer.com/tools/serac/snow-employee-onboarding.md - `snow_execute_atf_test` — Execute — https://policylayer.com/tools/serac/snow-execute-atf-test.md - `snow_execute_script` — Execute — https://policylayer.com/tools/serac/snow-execute-script.md - `snow_execute_security_playbook` — Execute — https://policylayer.com/tools/serac/snow-execute-security-playbook.md - `snow_execute_transform` — Execute — https://policylayer.com/tools/serac/snow-execute-transform.md - `snow_fluent_build` — Execute — https://policylayer.com/tools/serac/snow-fluent-build.md - `snow_fluent_install` — Execute — https://policylayer.com/tools/serac/snow-fluent-install.md - `snow_fluent_transform` — Execute — https://policylayer.com/tools/serac/snow-fluent-transform.md - `snow_github_deploy` — Execute — https://policylayer.com/tools/serac/snow-github-deploy.md - …and 401 more: https://policylayer.com/tools/serac.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=serac · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/serac