Enable Vercel Speed Insights in your project

[vercel]

Vercel Speed Insights Integration Report

Summary

Successfully integrated Vercel Speed Insights into the StillOnTime frontend application following the official Vercel documentation for React projects.

Changes Implemented

1. Package Installation

• File: frontend/package.json
• Action: Added @vercel/speed-insights (v1.3.1) to project dependencies
• Method: Used pnpm package manager for installation

2. Speed Insights Component Integration

• File: frontend/src/main.tsx
• Changes:
  • Added import: import { SpeedInsights } from '@vercel/speed-insights/react'
  • Added <SpeedInsights /> component inside the React root render, positioned after the App component and before the Toaster
  • The component is placed within the BrowserRouter context for proper routing context

3. Lock File Update

• File: pnpm-lock.yaml
• Action: Automatically updated by pnpm with new dependency metadata

Technical Details

Why This Approach?

• The project uses React with React Router, making the @vercel/speed-insights/react package the ideal choice
• The SpeedInsights component is placed as a direct child of BrowserRouter to ensure it has access to routing context
• Positioned after App but before Toaster to maintain component hierarchy clarity

Integration Location

The component is strategically placed in the main React entry point (main.tsx) to:

1. Initialize tracking as early as possible in the application lifecycle
2. Work with React Router's routing capabilities
3. Avoid duplicate components at route level (which would cause issues in Next.js but works fine in this React Router setup)

Next Steps for Production

Before deploying to Vercel, ensure:

1. Enable Speed Insights in Vercel Dashboard: Go to project Settings → Speed Insights → Enable
2. Deploy to Vercel: Push changes and deploy the application
3. Verify Integration: After deployment, check that the /_vercel/speed-insights/script.js is loaded in the browser
4. Monitor Dashboard: Once users start visiting the site, performance metrics will be visible in the Vercel dashboard

Additional Notes

• The @vercel/speed-insights package requires no configuration and works out of the box
• No environment variables or API keys are needed
• The package will only send data when deployed to Vercel (no-op in development)
• The integration follows Vercel's official React documentation exactly
• Existing TypeScript errors in the codebase are pre-existing and not caused by this integration

Files Modified

• frontend/package.json - Added dependency
• frontend/src/main.tsx - Added import and component
• pnpm-lock.yaml - Updated lock file

Verification

The integration has been verified to:

• ✅ Install successfully with pnpm
• ✅ Import without TypeScript errors
• ✅ Render correctly within the React component tree
• ✅ Not break existing application functionality
• ✅ Follow React best practices for component integration

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View Project · Speed Insights

Created by makaronz with Vercel Agent

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Important

Integrates Vercel Speed Insights into the React project by adding the package and component to package.json and main.tsx.

• Integration:
  • Added @vercel/speed-insights v1.3.1 to frontend/package.json dependencies.
  • Imported SpeedInsights in frontend/src/main.tsx and added <SpeedInsights /> component after <App /> and before <Toaster /> within BrowserRouter.
• Lock File:
  • Updated pnpm-lock.yaml with new dependency metadata.

^{This description was created by for 5842851. You can customize this summary. It will automatically update as commits are pushed.}

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Project	Deployment	Review	Updated (UTC)
still-on-time-backend	Error		Dec 22, 2025 10:36pm

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[ellipsis-dev]

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Looks good to me! 👍

Reviewed everything up to 5842851 in 1 minute and 49 seconds. Click for details.

• Reviewed 32 lines of code in 2 files
• Skipped 1 files when reviewing.
• Skipped posting 3 draft comments. View those below.
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1. frontend/package.json:36

• Draft comment:
  Dependency added correctly. Ensure '@vercel/speed-insights' integration meets production needs.
• Reason this comment was not posted:
  Confidence changes required: 0% <= threshold 5% None

2. frontend/src/main.tsx:21

• Draft comment:
  Consider conditionally rendering (e.g., production-only) to avoid unnecessary overhead in development, even if it no-ops by default.
• Reason this comment was not posted:
  Decided after close inspection that this draft comment was likely wrong and/or not actionable: usefulness confidence = 20% vs. threshold = 50% This comment is suggesting a code quality improvement/optimization. However, it's somewhat speculative - the comment itself acknowledges "even if it no-ops by default", meaning the tool likely already handles this internally. The comment is not pointing out a clear bug or issue, but rather suggesting a potential optimization that may not be necessary. According to the rules, I should not keep speculative comments like "If X, then Y is an issue" - this falls into that category since it's saying "to avoid unnecessary overhead" without evidence that there actually IS overhead. The Vercel SpeedInsights library is designed to be used this way and likely handles environment detection internally. The comment could be valid if SpeedInsights actually does cause measurable overhead in development. Many analytics/monitoring tools are designed to work in all environments and handle this internally, so the suggestion might be unnecessary boilerplate. The comment is speculative because it says "even if it no-ops by default", acknowledging that the library probably already handles this. Without strong evidence that this conditional is necessary, this is just a speculative optimization suggestion that may add unnecessary complexity. This comment should be deleted. It's a speculative optimization suggestion without evidence that it's needed. The comment itself acknowledges the library likely no-ops in development, making the suggested change unnecessary boilerplate.

3. frontend/src/main.tsx:34

• Draft comment:
  Trailing comma after the JSX block might conflict with style guidelines; consider removing it for consistency.
• Reason this comment was not posted:
  Comment was not on a location in the diff, so it can't be submitted as a review comment.

Workflow ID: wflow_ycaCgp1BTrV9uWRI

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[makaronz]

Closing as obsolete after repo consolidation; changes not selected for merge.