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A Guide to CDS Metadata Extensions, Fiori App Generation and SAP UI5 Controller ExtensionsA Guide to CDS Metadata Extensions, Fiori App Generation and SAP UI5 Controller ExtensionsWalks through a RAP-based Fiori elements app end to end: layering UI annotations onto a CDS view through a separate ABAP metadata extension object, gated by @Metadata.allowExtensions on the base view and ordered across extensions by a required @Metadata.layer value. Generates the app in SAP Business Application Studio from the published OData V4 service's merged $metadata document, then adds an SAP UI5 controller extension — registered in manifest.json against a Fiori elements lifecycle hook — only for behaviour the annotations cannot express.ankitapaul229, published 2026-07-27
Agentic UI Extensibility: The Next Chapter of SAPUI5 FlexibilityAgentic UI Extensibility: The Next Chapter of SAPUI5 FlexibilityA Devtoberfest 2026 session on SAPUI5 flexibility: a recap of key-user adaptation as deltas that survive an upgrade, then a lab preview in which Joule works through a pasted list of adaptation requests inside the key-user tooling — moving a section, adding one through embedded content, saving and activating a version — and writes a handover prompt when a request is outside what a key user may change. The developer half pastes that prompt into VS Code, where a coding agent generates an adaptation project through MCP tools, picks up the key-user changes already made, reads the base application's metadata and the UI5 documentation, writes the XML fragments and controller extensions for a new table column and a supplier dialogue, and restarts the editor to verify both appear. The agentic parts are unreleased; what the session shows as already available is the adaptation project for Cloud Foundry in VS Code, role-specific adaptation on Cloud Foundry from SAPUI5 1.146, views in variant management loaded when the manage-views dialogue opens rather than at startup, and the redesigned key-user adaptation mode with its change highlighting and version dialogue.SAP Developers, published 2026-10-16
AI-assisted SAP development with MCPAI-assisted SAP development with MCPA Devtoberfest 2026 session (UI-41) that traces AI-assisted SAP development from pasting code into a chat window to coding agents with built-in connectors, and sorts the MCP servers around SAP development into SAP's own, the community's and the hosted ones, where the agent cannot change what the server allows. Four demos follow: GitHub Copilot alone explaining an ABAP report from a Git repository, @ui5/mcp-server reading an OpenUI5 sample app and converting it to TypeScript, mcp-sap-docs grounding Terraform files for a BTP subaccount the presenter had not written before, and arc-1 with Copilot in Eclipse tracing why a title longer than 40 characters is rejected and proposing the DDIC-allowed length instead. It ends on a skill that migrates an SAP Gateway project on an ECC system to RAP on S/4HANA step by step, and on a rule Marian Zeis gives for servers written for internal use: keep them read-only, because what the agent is short of is context.published 2026-10-16
Beyond copilots: Agentic development with SAPUI5Beyond copilots: Agentic development with SAPUI5Devtoberfest 2026 session UI-12, from the SAPUI5 team, on the year of work behind UI5/plugins-coding-agents: what a model produces for UI5 without help — outdated concepts, framework versions a decade old, generic JavaScript rules, code that does not run — and the two ways they chose to close that gap, an MCP server in September 2025 and skills packaged as plugins once agents began reading them. Three plugins are demonstrated live in Claude Code: the everyday one scaffolds an Oktoberfest tents application in about four minutes, the TypeScript conversion plugin rewrites an existing JavaScript project and reconfigures its build with the types and the transpile task, and the modernisation plugin takes a ten-year-old application through staged migrations, applying UI5 Linter's automatic fixes where they cannot break the app and the model where they can, then running the tests. @ui5/mcp-server is still the path for the parts that need a server, and the plugins are installed from the Claude Code and GitHub Copilot marketplaces rather than a UI5-hosted one.SAP Developers, published 2026-09-25
Bring "developers.sap.com" Into Your Dev Environment: SAP Developer Context for AI Coding AgentsBring "developers.sap.com" Into Your Dev Environment: SAP Developer Context for AI Coding AgentsDevtoberfest 2026 session FA-11: a tour of the rebuilt developers.sap.com by the team that runs it, from the administration screens behind the home page to the agent interfaces in front of it. The site is a CAP application on SAP HANA Cloud and SAP BTP, open-sourced in full, and the half of the session that places it here is how its content reaches an agent: every tutorial is also served as markdown, a coding agent is detected and given that version instead of the HTML, a well-known agent card advertises what the site offers, and SAP Developers MCP answers questions about tutorials, news and a reader's own completion history in Claude Code and Joule Desktop, over OAuth or a personal access token. Behind the answers sit two things working together: a knowledge graph in the HANA database over 1400 tutorials and 11,000 concepts, and SAP AI Core for the Joule interactions and the embeddings, with the agent harness written for the site rather than taken off a shelf. Where neither MCP nor A2A is available, the same content is published as skills.SAP Developers, published 2026-09-25
Bringing SAP themes to any web app with coding agentsBringing SAP themes to any web app with coding agentsA Devtoberfest 2026 session from SAP's UI theme designer team, in two halves. The first is how an SAP theme is built: seven reference tokens, the main tokens that carry the semantics, component tokens such as the emphasized button background, and derived tokens for states like hover — the inheritance chain that makes theming hard to follow by eye, and the reason a custom theme always derives from an SAP base theme. The second installs SAP/ui-theme-designer-plugins-for-coding-agents in Claude Code and has it apply SAP design tokens to a login screen built with a non-SAP component library, then make the page themeable from a theme root and a theme URL parameter; the design-tokens skill npm-installs the theming content to read current parameter values, and the help skill fetches the UI theme designer help pages at query time. The presenters state the skills are not limited to SAPUI5 and run in any coding agent that reads skills.SAP Developers, published 2026-09-25
Building Agentic Workflows with n8n in Joule StudioBuilding Agentic Workflows with n8n in Joule StudioA Devtoberfest 2026 session, JS-31, on SAP-managed n8n inside Joule Studio, shown as a labs preview on a blocked-invoice scenario: a solution made of assets, an intent refined by the web agent into requirements and then a specification, and the generated workflow opened in the n8n editor that Joule Studio connects to its own n8n tenant, with the generated files committed through GitHub. The nodes carry the other edges — the human-in-the-loop node is built on SAP Task Center, and SAP AI Core is where model providers are configured centrally instead of per developer. It ends in Joule chat, where the approval task the workflow created is listed, opened and completed.SAP Developers, published 2026-10-08
From Intent to Arcade: Building Joule*Bert with Joule Studio and AI-Assisted Pro CodeFrom Intent to Arcade: Building Joule*Bert with Joule Studio and AI-Assisted Pro CodeA Devtoberfest 2026 AI-track session that takes a Q*bert-style arcade game, written as an Easter egg for colleagues, through every phase Joule Studio runs: intent analysis with its clarifying questions, a product requirements document, a specification with its task list, generated code, generated tests and deployment. The knowledge-graph lookup reports that the game maps to no enterprise process and the flow adjusts, and the presenter edits the requirements by hand when the first version declares sound out of scope. He then pushes the project to GitHub, clones it and initialises the jl command line so that Joule Studio's MCP servers are wired into the coding agent in VS Code, where mobile arrow keys were added afterwards; applications could not yet be deployed to the Joule Studio runtime, so this one runs on Kyma.SAP Developers, published 2026-10-01
Intelligent App Development at Scale: SAP Fiori Elements + ABAP Development Tools for VS CodeIntelligent App Development at Scale: SAP Fiori Elements + ABAP Development Tools for VS CodeA Devtoberfest 2026 session (UI-33) that builds a RAP service and the SAP Fiori elements app over it from one VS Code workspace, with a coding agent driving two of SAP's MCP servers. The ABAP Development Tools for VS Code edges hold on the demo itself: its virtual file system keeps the ABAP package beside the Fiori project, the ADT MCP Server inside it creates, changes and activates the ABAP objects, and a version not yet released publishes the service binding from the agent instead of by hand. The @sap-ux/fiori-mcp-server edge covers its generators and the three-step workflow it uses for changes — list the functionality available for the application, ask for its JSON schema, then execute it — and the agent guidance edge rests on the skills the Fiori team publishes beside it, on the session's account of what a skill adds that a server does not, and on the analytical chart demo where a skill orchestrates both servers in one task.SAP Developers, published 2026-10-09
Real Pro-Code Development with Joule StudioReal Pro-Code Development with Joule StudioA Devtoberfest 2026 AI-track session that runs one agent build across both of Joule Studio's paths. Playing a procurement manager, one presenter states the intent in the browser, answers the clarifying questions, watches the fit-gap analysis name the S/4HANA APIs the use case needs, and pushes the intent and requirements document to GitHub; the other clones it and carries on in a terminal, logging in with the jl command line against her landscape URL and running its init command to fetch Joule Studio's skills for OpenCode. From there the coding agent writes the specification, the discovered API specifications, the MCP translation and the agent's Python file with its model configuration and evaluation scenarios, which is the edge to Agent tooling; the skills themselves, which SAP says not to edit but which a developer may add to, are the edge to Agent guidance.SAP Developers, published 2026-10-01
UI5 AI Features library is now an npm PackageUI5 AI Features library is now an npm PackageThe release note for a demo turning into a dependency, and it is explicit about why that matters: the earlier version worked, but using it meant cloning the repo and copying both halves, which stops working the moment one of them changes. The post walks through what shipping the CAP plugin and the be.wl.ai control library in one npm version buys — a client and server contract that cannot drift — then lists the eleven controls by group, shows the two-line configuration that activates each half, and notes that this version is actually deployed on BTP behind both a standalone approuter and Work Zone. It closes on the demo repository, written with no library source in it as the test that the package stands alone.published 2026-08-31
UI5 AI Features library is now an npm Package
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UI5 Views, Reimagined: Type-Safe TSX for a Modern Dev ExperienceUI5 Views, Reimagined: Type-Safe TSX for a Modern Dev ExperienceA Devtoberfest 2026 session on @ui5-community/jsx-runtime, the incubation project that lets a UI5 view be written as TSX: XML-like markup that the TypeScript compiler checks against the control's own types and a Babel plugin turns into the constructor calls UI5 already makes. The edge to the runtime rests on the session's own description, which gives the project's documentation site as the session's documentation. The TypeScript support edge holds because that is the session's subject — per-property checking, completion on every attribute, renames that carry through a view, and typed event objects that remove the casts — alongside what stays unchanged: string and expression bindings, controllers, routing and i18n, and XML views living beside TSX ones in the same app. The build edge rests on the setup, where ui5-tooling-transpile is given the JSX transform in ui5.yaml; the walkthrough then builds a bookshop app on a CAP OData service and names what is still missing, UI flexibility and native HTML among it.published 2026-10-09
