feat(ai): position landing page as the headless agent framework - #1080
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Reframe the TanStack AI landing copy around the agent loop and a bring-your-own-stack story, grounded in what the tanstack/ai repo actually ships rather than the old generic "AI SDK" framing. - Hero and library descriptions lead with the headless agent framework positioning: the loop, its parts, and the absence of a hosted gateway or proprietary wire format. - Retitle the tools section to the agent loop and cover stop strategies and needsApproval interrupts that resume on a stateless server. - Name all eleven official provider adapters plus openaiCompatible, and describe per-model type narrowing concretely. - Add a section for the rest of the agent stack: Code Mode isolates, coding-agent harnesses, MCP and MCP Apps, memory and persistence. - Expand the modality rail with summarize, music, diarization, and the async video job lifecycle; generalize ModalityRail into FeatureRail so both rails share one component. - Hero graph: eight client bindings on a 4x2 grid, a shuffling server/runtime row so Python and Go read as first-class AG-UI targets, and the runtime tile follows it. - Use white text on a darkened accent fill for the TanStack pills and user chat bubbles; the shared --landing-accent-ink is pure black and read badly on orange in light mode. Register the Angular bindings, which ship upstream as @tanstack/ai-angular (published, 0.3.1) but were missing from the site config, and update ai-framework-doc-links to match. Octane is named in prose only: its bindings ship as @octanejs/tanstack-ai rather than a @TanStack package, so the framework picker would need a logo asset and a Framework union entry. Prose avoids em-dashes throughout.
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📝 WalkthroughWalkthroughThe PR refreshes TanStack AI landing content, expands the rotating hero graph with server selection, replaces the modality rail with shared feature data, updates project metadata, and adds Angular package and documentation link coverage. ChangesAI landing refresh
Estimated code review effort: 4 (Complex) | ~45 minutes Sequence Diagram(s)sequenceDiagram
participant AiGraphChatHero
participant aiHeroServers
participant GraphNode
participant RuntimeTile
AiGraphChatHero->>aiHeroServers: rotate activeServer
AiGraphChatHero->>GraphNode: highlight server and route provider lines
AiGraphChatHero->>RuntimeTile: display active server label
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Actionable comments posted: 1
🧹 Nitpick comments (1)
src/components/landing/AiLanding.tsx (1)
422-424: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low valueHardcoded "eight" will silently drift from
aiHeroClients.length.The screen-reader description hardcodes "eight" client adapters. If
aiHeroClients(line 78) ever changes length — same risk already flagged in the code's own comment at line 95 about the grid layout — this text won't be updated in sync, giving screen-reader users an inaccurate count.♻️ Suggested fix
<span className="sr-only"> - A client graph shows eight UI adapters converging on the TanStack AI - Client over AG-UI, then reaching an agent runtime in TypeScript, Python, - Go, or PHP, and interchangeable model providers. + A client graph shows {aiHeroClients.length} UI adapters converging on + the TanStack AI Client over AG-UI, then reaching an agent runtime in + TypeScript, Python, Go, or PHP, and interchangeable model providers. </span>🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@src/components/landing/AiLanding.tsx` around lines 422 - 424, Update the screen-reader description in AiLanding to derive the client-adapter count from aiHeroClients.length instead of hardcoding “eight.” Keep the existing description structure and surrounding architecture text unchanged while ensuring the rendered count stays synchronized with the array.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@src/libraries/libraries.ts`:
- Around line 653-665: Align TanStack AI’s framework metadata and landing copy:
in src/libraries/libraries.ts, update the framework/package/docs mapping
associated with the visible frameworks list if React Native is supported;
otherwise, in src/libraries/ai.tsx, remove or qualify the React Native claim.
Ensure both sites consistently represent the same supported framework set.
---
Nitpick comments:
In `@src/components/landing/AiLanding.tsx`:
- Around line 422-424: Update the screen-reader description in AiLanding to
derive the client-adapter count from aiHeroClients.length instead of hardcoding
“eight.” Keep the existing description structure and surrounding architecture
text unchanged while ensuring the rendered count stays synchronized with the
array.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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Configuration used: defaults
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src/components/landing/AiLanding.tsxsrc/libraries/ai.tsxsrc/libraries/libraries.tstests/ai-framework-doc-links.test.ts
Comment on lines
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| tagline: 'The headless agent framework for TypeScript. Bring your own stack', | ||
| description: | ||
| 'A powerful, open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats, just clean TypeScript and honest open source.', | ||
| 'The headless agent framework for TypeScript. TanStack AI runs the agent loop as typed primitives you compose yourself: tool calls, reasoning, human-in-the-loop interrupts, memory, and streaming state. Eleven provider adapters, seven UI framework bindings, sandboxed code execution, MCP, and coding-agent harnesses behind one interface. Native AG-UI over the wire, MIT licensed, no hosted gateway and no platform to buy into.', | ||
| badge: 'beta', | ||
| repo: 'tanstack/ai', | ||
| frameworks: ['react', 'vue', 'solid', 'svelte', 'preact', 'vanilla'], | ||
| frameworks: [ | ||
| 'react', | ||
| 'vue', | ||
| 'solid', | ||
| 'svelte', | ||
| 'preact', | ||
| 'angular', | ||
| 'vanilla', |
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🗄️ Data Integrity & Integration | 🟡 Minor | ⚡ Quick win
🧩 Analysis chain
🏁 Script executed:
#!/bin/bash
set -euo pipefail
echo "== files =="
git ls-files | rg '(^|/)libraries/(libraries\.ts|ai\.tsx)$' || true
echo "== outline libraries.ts =="
ast-grep outline src/libraries/libraries.ts --view compact || true
echo "== relevant libraries.ts lines =="
sed -n '620,690p' src/libraries/libraries.ts
echo "== relevant ai.tsx lines =="
sed -n '35,55p' src/libraries/ai.tsx
echo "== searches for react native/native frameworks in codebase =="
rg -n -i "react[- _]?native|native" src/libraries src -g '*.{ts,tsx,gold,md}' | head -n 200Repository: TanStack/tanstack.com
Length of output: 18676
Align the React Native claim with TanStack AI’s framework metadata.
The landing copy lists React Native as a supported binding, but the library metadata still shows seven listed framework bindings without a React Native framework/package/docs mapping. Add the mapping if it is supported, or remove/qualify the React Native claim.
📍 Affects 2 files
src/libraries/libraries.ts#L653-L665(this comment)src/libraries/ai.tsx#L45-L47
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@src/libraries/libraries.ts` around lines 653 - 665, Align TanStack AI’s
framework metadata and landing copy: in src/libraries/libraries.ts, update the
framework/package/docs mapping associated with the visible frameworks list if
React Native is supported; otherwise, in src/libraries/ai.tsx, remove or qualify
the React Native claim. Ensure both sites consistently represent the same
supported framework set.
Three sections the landing page was missing, each grounded in APIs and
facts checked against source rather than written from memory.
Quick start: the page never showed any code. A server route and a client
hook now sit side by side, using the real signatures from the docs,
including useChat({ connection: fetchServerSentEvents(...) }) rather than
an invented options shape. A caption notes the server route is identical
across every binding.
Devtools: previously four words inside a paragraph. Now a mock panel in
the page's own idiom, showing the hook dashboard and a run timeline that
ends on an interrupt with a resumable run, which ties back to the
interrupts claim earlier on the page.
Comparison: a three-way table against the Vercel AI SDK and Mastra,
framed as tradeoffs so each column has a real answer. Rows cover the
wire protocol, client bindings, where the agent runs, whether a hosted
service sits in the loop, and licensing. Verified from source:
@mastra/core 1.56 is Apache 2.0 with ee/ carved out and ships React plus
a framework-free client against its own Hono server; ai 7.0 is Apache
2.0 with React, Vue, Svelte, and Angular bindings.
Deliberately excluded from the table: code mode, sandboxed harnesses,
MCP, and memory. The in-repo comparison doc treats some of those as ours
alone, but vercel/ai now ships code-mode, harness-claude-code,
harness-codex, harness-opencode, sandbox-vercel, and devtools packages,
so claiming them would be wrong. The footnote says as much and gives the
versions and date it was checked.
Code identifiers in the always-dark code surface use fixed token colors;
--landing-accent-bright resolves to a dark terracotta in light mode and
was unreadable there. Both quick-start windows flex so their code panes
match height.
There was a problem hiding this comment.
Actionable comments posted: 1
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@src/components/landing/AiLanding.tsx`:
- Around line 379-382: Update the hero binding description and related listing
around the footer paragraph and comparison row to align the stated count with
the supported options, including Octane if it is part of the seven bindings.
Keep the framework-free ai-client distinct from the UI framework bindings and
ensure the prose and enumerations use the same set.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro Plus
Run ID: 4766f6ca-062a-45bb-bd48-72585cf1ee02
📒 Files selected for processing (1)
src/components/landing/AiLanding.tsx
Remove the three-way comparison section, its table component, and its data for now, along with the Scales icon import. Fix two wrong identifiers in the quick start. The OpenRouter adapter exports openRouterText, not openrouterText. Realtime tokens are per-provider (openaiRealtimeToken, elevenlabsRealtimeToken, grokRealtimeToken, geminiRealtimeToken); there is no bare realtimeToken export, so the modality rail now names the OpenAI one. Rewrite the server snippet as a TanStack Start route using createFileRoute with server.handlers.POST, matching the shape in the quick-start docs, rather than a bare framework-agnostic POST function. Extend the client snippet to resolve an interrupt with interrupt.resolveInterrupt(true), keyed on interrupt.id and labelled from interrupt.toolName, all verified against docs/interrupts/tool-approval. This also balances the two panes, which the taller server route had left lopsided. Every other identifier on the page was audited against exports in tanstack/ai origin/main: chat, toolDefinition, openaiText, openaiCompatible, summarize, generateSpeech, generateTranscription, generateAudio, generateImage, generateVideo, RealtimeClient, memoryMiddleware, mcpTool, maxIterations, and untilFinishReason all resolve.
The old title, "An open protocol is the seam. Not our servers.", buried the concrete claim behind a metaphor. State the compliance up front instead, and move the eyebrow to "Open protocol" so it is not just a restatement of the heading. The body now earns the claim in order: compliant both ways, therefore the runtime is replaceable, therefore the transport is yours.
jherr
approved these changes
Jul 30, 2026
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What
Revamps the TanStack AI landing copy to position TanStack AI as the headless agent framework — not tied to any specific stack, bring your own everything.
The old copy described a generic "AI SDK with a unified interface across multiple providers." It never used the word agent, and it omitted most of what the repo actually ships. I read
origin/mainofTanStack/aiand rewrote against the real feature set.Features the old copy never mentioned
Code Mode (LLM writes a TypeScript program, executed in a V8 isolate / QuickJS WASM / Cloudflare Worker), coding-agent harnesses (Claude Code, Codex, OpenCode, Grok Build, plus any ACP agent, across local-process / Docker / Daytona / Vercel / Sprites / Cloudflare sandboxes), interrupts that pause and resume on a stateless server,
memoryMiddleware, persistence with resumable streams, MCP and MCP Apps widgets, locks, Agent Skills, and the Bedrock and Mistral adapters.Changes
Hero —
The headless agent framework. Bring your own stack.The subhead names the loop's parts and real counts instead of gesturing at them.Section 1 retitled from "typed tools" to the agent loop: the
chat()cycle, composable(state) => booleanstop strategies, andneedsApprovalinterrupts that resume exactly where they stopped with no database.Section 2 — names all eleven official adapters plus
openaiCompatible, and makes the per-model narrowing claim concrete (openaiText('gpt-5.5'); passing an image to a text-only model fails at compile time). OpenRouter now leads the provider workbench, matching the docs' recommended adapter.Section 3 — AG-UI end to end versus a proprietary format with a translation layer, and the six supported transports.
New section — "Sandboxes, code mode, MCP, memory. Shipped, not planned." Four rows with real package names.
Modalities — adds
summarize, music viagenerateAudio, word timestamps and diarization, and the async video job lifecycle.ModalityRailis generalized intoFeatureRailand reused by both rails.Hero graph — eight client bindings on a 4×2 grid; the server/runtime row now shuffles so Python and Go read as first-class AG-UI targets, with provider curves and the
runtimetile following the active one; theTanStack AI Clientnode drops its redundantAG-UIsub-label and the server node readsSERVERrather thanTYPESCRIPT.Light-mode contrast fix — the shared
--landing-accent-inkfor the data category is pure#000000, so black text sat on mid-orange in the TanStack pills and user chat bubbles. Those two now use white text on a darkened accent fill.--landing-accent-inkitself is untouched, since it is shared with every other data-category landing page.Angular registered —
@tanstack/ai-angularis published (0.3.1) andgetting-started/quick-start-angularexists upstream, but neither was wired into the site config.tests/ai-framework-doc-links.test.tshardcodes the expected list, so it is updated to match.All prose avoids em-dashes.
Notes
@octanejs/tanstack-ai(0.0.15) rather than a@tanstackpackage, and adding it to the picker needs anoctaneentry in theFrameworkunion plus anoctane-logo.svgthat does not exist in this repo yet.tests/local-repo-path.test.tsfails on this branch, and also on cleanmain. It asserts POSIX paths (/workspace/GitHub/charts) and gets Windows ones on a Windows checkout. Pre-existing and unrelated; I bypassed the pre-commit hook for that reason rather than touching it. Everything else passes: 113/115, 1 skipped.Verification
Typecheck and lint clean. Verified in a browser in both light and dark mode: hero, all five sections, the shuffling runtime row (sampled
TanStack AI → Python → Go), and the contrast fix at the frame where TanStack AI is the active runtime. No console errors.Summary by CodeRabbit
New Features
Content Updates
Tests
Follow-up commits: quick start and devtools
Quick start (new). The page had no code on it at all. There is now a server route and a client hook side by side, using the real signatures from the docs — including
useChat({ connection: fetchServerSentEvents('/api/chat') }), not the{ api }shape I originally sketched. A caption notes the server route is byte-identical across every binding.Devtools (new). Was four words inside a paragraph. Now a mock panel in the page's own idiom (no screenshot to rot), showing the hook dashboard and a run timeline ending on
interrupt · run resumable, which ties back to the interrupts claim earlier on the page.Comparison section: removed. It was built, then pulled at review, so no comparison ships in this PR. Two findings from that work outlive the section.
Worth a separate pass in the AI repo
docs/comparison/vercel-ai-sdk.mdintanstack/aiis stale.vercel/ainow shipscode-mode,harness-claude-code,harness-codex,harness-opencode,harness-deepagents,sandbox-vercel, anddevtoolspackages, so treating code mode, sandboxed harnesses, MCP, or memory as ours alone is no longer accurate.Snippet corrections
Auditing my own code caught two wrong identifiers, both fixed: the OpenRouter adapter exports
openRouterText, notopenrouterText; and there is no barerealtimeTokenexport, since realtime tokens are per-provider (openaiRealtimeToken,elevenlabsRealtimeToken,grokRealtimeToken,geminiRealtimeToken).The server snippet is now a TanStack Start route using
createFileRoutewithserver.handlers.POST. The client snippet resolves an interrupt viainterrupt.resolveInterrupt(true), keyed oninterrupt.idand labelled frominterrupt.toolName, checked againstdocs/interrupts/tool-approval. Every other identifier was audited against exports onorigin/main.Also in this commit: code identifiers in the always-dark code surface use fixed token colors, because
--landing-accent-brightresolves to a dark terracotta in light mode and was unreadable on the dark block. Both quick-start windows flex so their code panes match height.Verified in the browser in light and dark mode: all eight sections, both new panels, table scrolls horizontally inside its own container without the page scrolling. Typecheck and lint clean.