Debug Your Vercel App

For an indie dev whose production app is misbehaving and who wants the whole loop closed, from reading logs to reproducing in a browser, fixing the code, and redeploying.

Vercel

GitHubSUSupabase

The grind

Production debugging eats the day

Here's what doing this by hand looks like today, and why it doesn't scale.

Bug reports come in and the log to fix loop is endless context switching.
Reproducing it means logging in, clicking through, and opening the network tab.
By the time you have fixed it, the afternoon is gone.

MewCP collapses all of this into one prompt. Here's what that looks like.

The flow

9 steps · 3 servers

Your agent runs it end-to-end

List the recent production deployments.

Pull the runtime logs for the active deployment.

Identify the error pattern, including the file, line, and message.

If the error touches the database, check Supabase for active queries.

Reproduce the bug in a headless browser by navigating, filling the form, and clicking submit.

The payoff

From bug to fix in one loop

One prompt reads the logs, reproduces the bug, patches the code, and verifies the redeploy, with no browser tabs and no lost context.

Paste this into Claude, Codex, or any MCP-connected agent. It'll connect your apps and run the task from start to finish.

Run it yourself

Copy the prompt

prompt

Goal: Debug Your Vercel App

MCP servers needed (connected through MewCP): Vercel, GitHub, Supabase

Steps:
1. List the recent production deployments.
2. Pull the runtime logs for the active deployment.
3. Identify the error pattern, including the file, line, and message.
4. If the error touches the database, check Supabase for active queries.
5. Reproduce the bug in a headless browser by navigating, filling the form, and clicking submit.
6. Capture the network responses and console errors.
7. Fetch the source file from GitHub.
8. Propose a patch, commit it to a new branch, and open a PR.
9. After the merge, redeploy and rerun the browser repro to confirm the fix.

Check with me before sending any message or changing data in a connected app.

More recipes

CLSE