[EduKegler]

Related: TanStack/router#8437

A new Start app on Vite gets "generate-routes": "tsr generate", and create runs that script once after install. tsr generate does not know about Start. The routeTree.gen.ts it writes has no declare module '@tanstack/react-start' { interface Register } block. The first vite dev or vite build adds the block, so the tracked file changes on the first run. Every later generate-routes removes the block again. In #8437, a maintainer said the router CLI does not support Start.

The missing block can also fail type checking. If src/start.ts has request middleware that adds context, getGlobalStartContext() returns never until Vite runs again:

src/nonce.ts(3,53): error TS2339: Property 'nonce' does not exist on type 'never'.

Changes

• In the React and Solid packages.json, the Vite generate-routes script is now vite build. Rsbuild apps already use rsbuild build for this script. The Start plugin writes the route tree with the block during the build.
• The React and Solid packages.json move tsr generate and @tanstack/router-cli from bundlerFileRouter to a new bundlerRouterOnlyFileRouter key. createPackageJSON and its edge copy apply that key only to router-only apps. Start apps no longer get @tanstack/router-cli, because no script calls it.
• bundlerFileRouter still applies to every file-router app, so a custom framework that sets it gets the same package.json as before.

The trade-off is time. On my machine, vite build takes about 2 seconds in the default app.

Testing

• pnpm build, pnpm test:unit, and the blocking e2e tests pass. bundlers.test.ts now expects vite build for Start apps on Vite, and checks which apps get @tanstack/router-cli. framework-template.test.ts no longer reads those packages.json keys, because bundlers.test.ts checks the generated package.json instead. package-json.test.ts checks that a custom framework's bundlerFileRouter still reaches Start and router-only apps.
• I created a React Start app and a Solid Start app with the local build. In both, routeTree.gen.ts has the Register block right after create. After pnpm build and pnpm generate-routes, git status is clean and tsc passes.
• A --router-only React app still gets tsr generate and @tanstack/router-cli, and tsc passes.

Summary by CodeRabbit

• New Features
  • New Vite-based projects generate their route tree during vite build, ensuring the Start Register block is included. Router-only projects continue to use dedicated route generation.
  • Standard file-router projects no longer include the router CLI as a development dependency; router-only projects retain it and use the dedicated route-generation script.
  • Generated file-router projects include the bundler-specific package required for router-only setups.

[changeset-bot]

🦋 Changeset detected

Latest commit: bb2a9f5

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

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Walkthrough

Non-router-only Vite projects now use vite build for generate-routes and omit @tanstack/router-cli. Router-only Vite projects use tsr generate and include the router CLI dependency. Package generation and tests cover these distinctions for React, Solid, and custom frameworks.

Changes: Vite route generation

Layer / File(s)	Summary
Vite generation scripts packages/create/src/frameworks/react/project/packages.json, packages/create/src/frameworks/solid/project/packages.json	The default Vite generate-routes script now runs vite build. The router-only Vite configuration runs tsr generate.
Package selection and validation packages/create/src/package-json.ts, packages/create/src/edge-package-json.ts, packages/create/tests/package-json.test.ts, packages/create/tests/bundlers.test.ts, packages/create/tests/framework-template.test.ts, packages/create/tests/blank-preset.test.ts, packages/cli/tests-e2e/blank-smoke.spec.ts, .changeset/start-generate-routes-vite-build.md	Package generation adds the router-only package when mode is file-router and routerOnly is true. Tests cover custom package configuration, generated scripts, dependencies, and framework options. The changeset describes the Vite script change.

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

Change: Bug fix

Possibly related PRs

• TanStack/cli#505: Introduces the bundler configuration model that this change renames and extends for router-only package generation.

Merge Risk: Minimal · up to bb2a9

No actionable merge-blocking risk is established by the supplied evidence.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: generating Start route trees with vite build.
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

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. 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 2 functions across 6 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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packages/create/tests/package-json.test.ts

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Actionable comments posted: 2

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

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Inline comments:
Review comments at @packages/create/src/package-json.ts:
- Line 182: Restrict the `generate-routes` rewrite in the `packageJSON.scripts`
condition to Start apps configured for Vite, so custom frameworks and non-Vite
bundlers retain their existing command; apply the same guard in the
corresponding `edge-package-json.ts` rewrite.
- Line 186: In both package generators, update the removal of
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dependency if any remaining script invokes `tsr`, and delete it only when none
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @packages/create/src/package-json.ts:
- Around line 100-101: Restore the bundlerFileRouter overlay for all file-router
apps in the package JSON generation flows, while retaining the
routerOnly-specific bundlerRouterOnlyFileRouter overlay. Apply this behavior in
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