UI5 development best practices and coding standards derived exclusively from official SAP UI5 guidelines. Use when writing UI5 applications to ensure modern, maintainable code following SAP standards. Covers: async module loading (sap.ui.define, ES6 imports, core:require), ComponentSupport initialization, data binding with OData types, i18n management, CSP compliance (no inline scripts), TypeScript event types (UI5 >= 1.115.0), MCP tooling (get_api_reference, run_ui5_linter), CAP integration patterns, and form creation rules (never SimpleForm, always Form with ColumnLayout).

This skill should be used when the user asks to audit, fix, check, review, or improve accessibility, a11y, ARIA, WCAG compliance, landmarks, labeling, heading levels, focus handling, keyboard navigation, keyboard shortcuts, screen reader support, invisible messaging, reading order, or touch / target size in UI5 application files (views, fragments, controllers). Also use when the user creates a new UI5 view, fragment, or controller and wants it to be accessible, or asks whether a specific control (Dialog, Table, Panel, etc.) meets accessibility requirements.

MUST be loaded before any UI Integration Cards (also called UI5 Integration Cards) task — creating, modifying, validating, previewing, or reviewing a card, its `manifest.json`, its Configuration Editor (`dt/Configuration.js`), or any analytical chart configuration. Provides the official guidelines, validation rules, supported chart types, and Configuration Editor patterns.

UI5 MDC (Model-Driven Controls) best practices and authoritative development guidelines for OData V4 delegate-based controls. Use when the user asks to "create an MDC FilterBar", "implement MDC Chart", "add MDC Field", "use MDC FilterField", "implement ValueHelp", "add MDC Link", "MDC MultiValueField", "sap.ui.mdc", "delegate pattern", "fetchProperties", "OData V4 freestyle controls", "MDC personalization", "p13nMode", "PropertyInfo", "MDC delegate", "FilterBarDelegate", "ChartDelegate", "ValueHelpDelegate", "LinkDelegate", "MDC field not rendering", "MDC chart not binding", "MDC conditions", "Condition.createCondition", "MDC Table delegate", or is writing any UI5 freestyle application using OData V4 with model-driven controls from sap.ui.mdc. Covers: delegate pattern, PropertyInfo structure, mandatory rules, common error patterns, and per-control API reference for FilterBar, Chart, Field, FilterField, ValueHelp, Link, and MultiValueField.

This skill should be used in any OPA5 task - creating, modifying, extending, debugging, fixing or reviewing an integration test. Use when the user asks to "write an OPA5 test", "add an OPA5 journey", "fix the OPA5 test failure" or mentions OPA5 or its components - opaTest, page object, journey, waitFor.

UI5 smart controls best practices and authoritative development guidelines for OData V2 annotation-driven controls. Use when the user asks to "create a SmartField", "add a SmartForm", "implement SmartFilterBar", "create SmartChart", "add SmartLink navigation", "use SmartMultiInput", "smart control annotations", "OData V2 metadata-driven controls", "sap.ui.comp", "field control annotation", "value help annotations", "ValueList annotation", "smart form layout", "smart filter bar configuration", "chart annotations", "semantic object navigation", "smart link popover", "SmartField edit mode", "SmartField display mode", "SmartFilterBar liveMode", "SmartChart drill-down", "SmartMultiInput tokens", "SmartTable configuration", or is writing any UI5 freestyle application using OData V2 annotation-driven controls from sap.ui.comp. Covers: control selection, mandatory rules, common error patterns, annotation guidance, and per-control API reference for SmartField, SmartForm, SmartFilterBar, SmartChart, SmartLink, and SmartMultiInput.

UI5 table best practices and authoritative development guidelines. Use when the user asks to "create a table", "add a table", "which table should I use", "implement sap.m.Table", "implement sap.ui.table", "GridTable", "ResponsiveTable", "TreeTable", "SmartTable", "MDC table", "sap.ui.mdc.Table", "sap.ui.comp.smarttable", "table not showing data", "table binding", "table selection", "drag and drop table", "table personalization", "copy paste table", "table export", "table sticky header", "table growing", "table pop-in", "table performance", "table accessibility", "table items binding", or is writing any UI5 freestyle application that includes a table control. Covers: control selection matrix, mandatory rules, common error patterns, and per-control API guidance for sap.m.Table, sap.ui.table.Table, sap.ui.table.TreeTable, sap.ui.comp.smarttable.SmartTable, and sap.ui.mdc.Table.

STDIO · npx -y @ui5/mcp-server