These days, a vibe coder can build almost anything a senior engineer can—with the help of Claude and OpenAI tools. Agree or not?

Nahid — Tue, 15 Sep 2026 06:41:14 +0000

I'm building a VS Code extension that shows API latency right next to your code — no dashboard, no cloud

Nahid — Sun, 13 Sep 2026 15:36:50 +0000

## The problem

A route feels slow. What do you do? Usually console.log(Date.now()) around
the code, or open a separate dashboard, or hit the route a few times in
Postman and try to eyeball the difference. It works but it's slow and
disconnected from the actual code.

## What I'm building

API Performance Profiler. An open-source tool that shows real API latency
inline in VS Code, right next to the route.

@get('/users') 🟢 84ms
@get('/products') 🟡 430ms
@get('/orders') 🔴 1.82s

No dashboard. No cloud account. No API key. It runs on your machine and
watches real traffic as it comes in.

## Why local first

I don't want a tool that needs a signup and a config file just to tell me
one route is slow. So it works offline:

Your backend runs locally like normal
A small middleware measures real request timings
VS Code reads that data and shows it next to your code

Nothing leaves your machine.

What it supports first

Node.js and TypeScript. Express and NestJS to start.

Only real metrics. Average latency, P50/P95/P99, throughput, error rate.
If there isn't enough traffic yet it just says so instead of showing a
fake number.

## What's next

Database query timing. External HTTP call breakdowns. A CLI for people who
don't use VS Code. Later, something for teams to see this data together.

## Follow along

Building this in public and posting updates here as it comes together.
Repo isn't public yet but will be soon, and I'd love contributors once it
is (issues, ideas, PRs).

If this is something you'd use, follow along. And let me know in the
comments if there's a framework you'd want supported first.

DEV Community: Nahid

These days, a vibe coder can build almost anything a senior engineer can—with the help of Claude and OpenAI tools. Agree or not?

I'm building a VS Code extension that shows API latency right next to your code — no dashboard, no cloud

What it supports first