TanStack Adds Framework-Agnostic AI Toolkit

The TanStack team has added yet another piece to its stack: This time, it’s the alpha release of a new framework-agnostic AI toolkit for developers called — guess what? — TanStack AI. “Let’s be honest. The current AI landscape has a problem,” wrote TanStack’s Jack Herrington, Alem Tuzlak and Tanner Linsley. “You pick a framework, you pick a cloud provider, and suddenly you’re locked into an ecosystem that dictates how you build. We think that’s backwards.” Their goal is to create the “Switzerland of AI tools.” It will be a set of libraries to work with your existing stack, they added. The alpha supports JavaScript/TypeScript, PHP and Python out of the box. All three support full agentic flows with tools, the team stated, although Python and PHP have not yet been released to the appropriate package systems. The alpha also includes TypeScript adapters for OpenAI, Anthropic, Gemini and Ollama, with the TypeScript server library also handling summarizations and embeddings. TanStack AI uses an open, published protocol that has been documented by Tanstack. “Use whatever language you want. Use whatever transport layer you want. HTTP, websockets, smoke signals,” the team wrote. “As long as you speak the protocol through a connection adapter, our client will work with your backend.” TanStack AI also has support for isomorphic tools and a full AI devtools panel that gives developers “unparalleled insight into what the LLM is doing on both sides of the connection.” It allows you to debug AI workflows the way everything else is debugged. Client libraries include Vanilla JS, React and Solid, with Svelte and others on the way. There are real examples given with working code, instead just documentation, the team noted. You’ll find more details about what’s included in the full post. TanStack also gives us a preview of what it plans for TanStack AI, including a headless chatbot component, and fully functional and unstyled components for React and Solid that developers can skin to match their application. Bun Acquired by Anthropic The JavaScript runtime and toolkit Bun, known for its speed, is now owned by Anthropic, creator Jarred Sumner announced earlier this month. ”Anthropic is betting on Bun as the infrastructure powering Claude Code, Claude Agent SDK, and future AI coding products and tools,” Sumner wrote. “Claude Code ships as a Bun executable to millions of users. If Bun breaks, Claude Code breaks. Anthropic has direct incentive to keep Bun excellent.” The runtime will remain available on GitHub, under the open source MIT license, supported by the same team, Sumner added. It makes sense for both financial reasons and for philosophical reasons, which Sumner reviews in his blog post. But bottom line, being part of Anthropic gives Bun: Long-term stability. A front-row seat to where AI coding tools are headed, so the team can shape Bun around that future instead of guessing. The team is able to add engineers. Rolldown-Powered Vite 8 Beta Available The first beta of Vite 8, powered by Rolldown, is now available, the Vite team announced earlier this month. “Vite 8 ships significantly faster production builds and unlocks future improvement possibilities,” the team wrote of the release. “This release unifies the underlying toolchain and brings better consistent behaviors, alongside significant build performance improvements.” Rolldown is the creation of Void(0) and is a modern, high-performance JavaScript bundler written in Rust. In Vite, it replaces the previous combination of esbuild and Rollup. Because it’s written in Rust, it matches esbuild’s performance level and is 10-30x faster than Rollup. It supports the same plugin API as Rollup and Vite. Rolldown also helps unify the toolchain, the Vite team wrote. “The impact of Vite’s bundler swap goes beyond performance,” the blog post states. “Bundlers leverage parsers, resolvers, transformers, and minifiers. Rolldown uses Oxc, another project led by VoidZero, for these purposes.” This makes Vite the “entry point to an end-to-end toolchain maintained by the same team: The build tool (Vite), the bundler (Rolldown) and the compiler (Oxc),” they wrote. If you’re interested in the implementation details, the post explains how Vite migrated to Rolldown in a way that ensures a smooth migration for developers. Infragistics Open Sources Ignite UI You may or may not have heard of software company Infragistics, but the company has just open sourced its UI library, called Ignite UI, for Angular, Blazor, React and Web Components. The library includes data charts, grids and user interface components. The move makes more than 50 open source UI components available under an MIT license, plus a free open source data grid. “Infragistics has spent 35+ years building enterprise-ready UX and UI solutions that 100% of the S&P 500, including Intuit, Exxon and Morgan Stanley, rely on to build interactive web applications,” the company stated in a press release. “Now, developers will have access to 50+ free, open source Ignite UI controls built on decades of experience creating solutions for some of the world’s largest companies.” This marks the first time Infragistics has made any of its Ignite UI components available to the wider developer community. Ignite UI controls include Data Grid, Combo Box, Tile Manager, Tree and Stepper. This gives developers access to: ApexCharts: One of the web’s most popular charting libraries, with over 1.5 million weekly NPM installs. ApexCharts allows developers to add interactive charts to their apps, combining high-performance data visualization with modern .NET–JavaScript interoperability. App Builder: A WYSIWYG drag and drop app builder that allows developers to visually build apps and then generate production-ready code. It incudes a complete toolbox of 65+ UI components. Reveal: Reveal allows end users to analyze data, extract actionable insights and make data-driven decisions without ever leaving their application. Developers can embed these interactive dashboards and analytics directly within their applications for insights. Chrome Unveils “CSS Wrapped 2025” The Chrome DevRel team has published a guide to the 22 CSS and UI features that landed on the Web Platform in 2025. It looks at the customizable components introduced over the past year, noting that the Chrome team delivered new core blocks like native anchor positioning and carousel scroll APIs. Among the new CSS features it covers, along with demos and full explanations, are: Invoker Commands, which allow buttons to perform actions on other elements declaratively, without the need for any JavaScript. Customizable select, which allows developers to style HTML select elements with CSS. Dialog Light Dismiss, which brings a Popover API feature to <dialog>. popover=hint are ”a new type of HTML popover designed for ephemeral layered UI patterns, such as tooltips or link previews,” the document explains. ::scroll-marker/button(). These features let developers create native, accessible, and performant carousels with just a few CSS lines and without JavaScript. scroll-target-group can turn a list of anchor links into connected scroll-markers. Anchored container queries allows developers to style elements based on their anchor position. Interest invokers, which provide a native, declarative way to style an element when users “show interest” in it without fully activating it, the team explained. The wrap also looks at a next-generation interaction toolkit that lets developers animate between pages “with view transitions and sculpt gorgeous, scroll-based experiences.” Finally, there are optimized ergonomics modules that enable users to redefine their interface, functionality, and aesthetic “down to the atomic level,” the team stated. Check out the full CSS wrapped up, which is a beautifully crafted resource for learning the latest CSS and UI features. Svelte Updates, Launches New Society Website Svelte has launched a new Svelte Society Website that’s features a dynamic feed of all the latest Svelte content, including videos, libraries and events. “Instead of opening PRs to add libraries and packages you can now just submit them on the website,” wrote Dani Sandoval, a designer who works with Svelte and runs a Svelte substack. “If you find an interesting package, head on over and submit it. Logged in users also have the ability to like and save content.” Svelte and SvelteKit, the web application framework for Svelte, also had a number of updates this month, including a hydratable API that is a low-level API used to coordinate hydration between the server and client in Svelte. Also, file uploads can now be streamed inside form remote functions, allowing form data to be accessed before large files finish uploading in SvelteKit. There were also upgrades the Svelte CLI, such as: Links are now wrapped with resolve() to follow best practices; npx sv create now supports a new argument –add to add add-ons to the project in the same command; and The new –no-dir-check option in sv create will, even if the folder is not empty, suppress all directory check prompts; A full list of changes, including bug fixes, can be found in the Svelte compiler’s CHANGELOG and the Svelte Kit/Adapter CHANGELOGs. The post TanStack Adds Framework-Agnostic AI Toolkit appeared first on The New Stack.