[jherr]

Two small fixes to scaffolded projects.

AI add-on chat sample missing threadId

@tanstack/ai-react's useChat requires a threadId on every call — it's a required field on ChatClientOptions (the conversation id used for the wire, DevTools, and persistence). The generated sample called useChat(chatOptions) with no threadId, so the app wouldn't type-check / run until hand-fixed.

The chat hook now passes a stable threadId:

export const useGuitarRecommendationChat = () =>
  useChat({ ...chatOptions, threadId: 'guitar-recommendations' })

A stable id is correct here since the demo chat has no persistence. The other AI demos (TTS, transcription, image, structured) use plain fetch rather than the generation hooks, so they needed no change.

Empty pnpm key in base templates

Both base templates carried an empty "pnpm": {}. Because mergePackageJSON keys off packageJSON.pnpm being truthy, that empty object made every generated project emit a useless, invalid empty pnpm field — even when no add-on needed onlyBuiltDependencies.

Removed "pnpm": {} from the React and Solid base package.json files. Add-ons that contribute pnpm.onlyBuiltDependencies (cloudflare, netlify, prisma, sentry, drizzle) still merge correctly via the overlay path.

Testing

• package-json, create-app, and conditional-packages suites pass
• Full pre-commit build + unit (294 create / 128 cli) + e2e (7) suites pass

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes

  • The AI guitar recommendation chat now retains a consistent conversation thread.

• Chores

  • Removed empty package manager settings from the React and Solid base templates.

[changeset-bot]

🦋 Changeset detected

Latest commit: 55f3894

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 7 packages

Name	Type
@tanstack/create	Patch
create-start-app	Patch
create-tanstack-app	Patch
create-tanstack	Patch
create-tsrouter-app	Patch
@tanstack/create-start	Patch
@tanstack/cli	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coderabbitai]

Walkthrough

The AI chat sample now passes a fixed thread ID to useChat. React and Solid base package manifests no longer include an empty pnpm configuration.

Changes: Create templates

Layer / File(s)	Summary
AI chat sample and release metadata .changeset/ai-threadid-and-empty-pnpm-key.md, packages/create/src/frameworks/react/add-ons/ai/assets/src/lib/demo-ai-hook.ts	The AI chat hook passes the fixed thread ID guitar-recommendations to useChat. The changeset records the update and the base manifest changes.
Base manifest pnpm configuration packages/create/src/frameworks/react/project/base/package.json, packages/create/src/frameworks/solid/project/base/package.json	The React and Solid base package manifests remove the empty pnpm configuration. Their devDependencies objects remain empty.

Priority: Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Possibly related PRs

• TanStack/cli#505: Adds Rsbuild support and changes the React and Solid base manifests and bundler overlay data.

Merge Risk: Minimal · up to 55f38

No actionable merge-blocking risk was identified in the changed templates.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely identifies both main changes: adding a stable AI chat threadId and removing the empty pnpm key.
Docstring Coverage		No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 0 functions across 1 files. (3 skipped: 3 unsupported.)

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