ci: changeset preview workflow

[birkskyum]

preview what workspace package versions will be bumped by changesets - because the changeset github bot isn't reliable

Summary by CodeRabbit

• Chores
  • Added automated changeset version preview workflow to pull requests. When a PR modifies changeset entries, a comment is automatically generated and posted showing the calculated version bumps (major, minor, or patch) for affected packages.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 73894c2

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

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

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: f7df276b-e47e-4bab-88cf-555531ce3fab

📥 Commits

Reviewing files that changed from the base of the PR and between 268bff2 and 73894c2.

📒 Files selected for processing (2)

• .github/workflows/changeset-preview.yml
• scripts/preview-changeset-versions.mjs

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📝 Walkthrough

Walkthrough

This pull request adds a GitHub Actions workflow and supporting Node.js script that automatically generates and posts changeset version previews to pull requests. The workflow triggers on changeset modifications, runs the script to compare current and post-changeset package versions, and updates a PR comment with the version bump analysis.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflow .github/workflows/changeset-preview.yml	New workflow triggered on PRs affecting .changeset directory. Configures job concurrency, runs setup action, executes preview script, and posts/updates PR comment with changeset version preview using upsert utility.
Changeset Preview Script scripts/preview-changeset-versions.mjs	New Node.js script that snapshots package versions, runs changeset versioning, compares against original versions, classifies bumps (major/minor/patch) by type (explicit vs. dependency), renders Markdown summary with collapsible sections, and outputs to file or stdout. Includes CLI argument parsing and restores changeset config after execution.

Sequence Diagram

sequenceDiagram
    participant PR as Pull Request
    participant GHA as GitHub Actions
    participant Script as Preview Script
    participant Pkg as Package System
    participant API as GitHub API

    PR->>GHA: Trigger workflow (changeset modified)
    GHA->>Script: Execute preview-changeset-versions.mjs
    Script->>Pkg: Snapshot current package versions
    Script->>Pkg: Run changeset version
    Script->>Pkg: Read updated package versions
    Script->>Script: Diff and classify version bumps
    Script->>Script: Render Markdown preview
    Script->>GHA: Output preview content
    GHA->>API: Post/update PR comment with preview
    API->>PR: Display changeset preview

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Estimated Code Review Effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐰 A changeset preview takes flight,
Bumps and versions shining bright!
Scripts and workflows dance as one,
Comments posted, preview done.
GitHub's clarity, complete! ✨

✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch ci--changeset-preview-workflow

📝 Coding Plan

• Generate coding plan for human review comments

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[nx-cloud]

View your CI Pipeline Execution ↗ for commit 73894c2

Command	Status	Duration	Result
nx run-many --target=build --exclude=examples/*...	✅ Succeeded	1m 51s	View ↗
nx affected --targets=test:eslint,test:unit,tes...	✅ Succeeded	<1s	View ↗

---

☁️ Nx Cloud last updated this comment at 2026-03-16 12:05:18 UTC

[github-actions]

Changeset Version Preview

12 package(s) bumped directly, 19 bumped as dependents.

Direct bumps

Package	Bump	Version
@tanstack/router-devtools-core	minor	1.166.9 → 1.167.0
@tanstack/router-ssr-query-core	minor	1.166.9 → 1.167.0
@tanstack/solid-start	minor	1.166.14 → 1.167.0
@tanstack/start-client-core	minor	1.166.11 → 1.167.0
@tanstack/start-server-core	minor	1.166.11 → 1.167.0
@tanstack/vue-router	minor	1.167.3 → 1.168.0
@tanstack/vue-start	minor	1.166.14 → 1.167.0
@tanstack/react-router	patch	1.167.3 → 1.167.4
@tanstack/react-start	patch	1.166.14 → 1.166.15
@tanstack/router-core	patch	1.167.3 → 1.167.4
@tanstack/router-plugin	patch	1.166.12 → 1.166.13
@tanstack/solid-router	patch	1.167.3 → 1.167.4

Dependency bumps (19)

Package	Bump	Version
@tanstack/react-router-devtools	patch	1.166.9 → 1.166.10
@tanstack/react-router-ssr-query	patch	1.166.9 → 1.166.10
@tanstack/react-start-client	patch	1.166.12 → 1.166.13
@tanstack/react-start-server	patch	1.166.12 → 1.166.13
@tanstack/router-cli	patch	1.166.11 → 1.166.12
@tanstack/router-devtools	patch	1.166.9 → 1.166.10
@tanstack/router-generator	patch	1.166.11 → 1.166.12
@tanstack/router-vite-plugin	patch	1.166.12 → 1.166.13
@tanstack/solid-router-devtools	patch	1.166.9 → 1.166.10
@tanstack/solid-router-ssr-query	patch	1.166.9 → 1.166.10
@tanstack/solid-start-client	patch	1.166.11 → 1.166.12
@tanstack/solid-start-server	patch	1.166.11 → 1.166.12
@tanstack/start-plugin-core	patch	1.166.14 → 1.166.15
@tanstack/start-static-server-functions	patch	1.166.13 → 1.166.14
@tanstack/start-storage-context	patch	1.166.11 → 1.166.12
@tanstack/vue-router-devtools	patch	1.166.9 → 1.166.10
@tanstack/vue-router-ssr-query	patch	1.166.9 → 1.166.10
@tanstack/vue-start-client	patch	1.166.11 → 1.166.12
@tanstack/vue-start-server	patch	1.166.11 → 1.166.12