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←LogoTervlon|T-01Product Listing API
BriefChatTerminal▶ Run Checks✓ Submitsaved 2:41pm
Ticket Brief×
Product Listing API

Build a RESTful product listing endpoint with filtering, pagination, and error handling.

Acceptance Criteria
✓Express server with CORS + JSON
✓Mount product routes at /api/products
✓GET /api/products returns list
Query param filtering (?category=)
Pagination with limit/offset
Global error handling middleware
Context

Ticket 1 of 5 in the E-Commerce API sprint. Later tickets build auth and orders on top of this.

Estimated
25 minutes
Explorer+
▸src/
▸routes/
TSproducts.ts
▸middleware/
▸utils/
TSindex.ts
▸prisma/
◆schema.prisma
#TICKET.md
#README.md
{}package.json
·.env
#TICKET.md×
TSindex.ts×
TSproducts.ts×
1import express from 'express';
2import cors from 'cors';
3import { productRouter } from './routes/products';
4
5const app = express();
6
7app.use(cors());
8app.use(express.json());
9
10// Mount routes
11app.use('/api/products', productRouter);
12
13const PORT = process.env.PORT || 3000;
14
15app.listen(PORT, () => {
16 console.log(`Server on ${PORT}`);
17});
18
19export default app;
●Terminal
$ tervlon evaluate --ticket current
✓ Express server boots correctly
✓ CORS + JSON middleware applied
✓ Product routes mounted at /api/products
✗ Missing error handling middleware
3 passing, 1 failing (2.1s)
Team Chat
PM
Teammate
AI PM
Welcome to Sprint #01. First ticket is the product listing API. Start with route structure.
Got express set up with cors. Working on routes now.
AI PM
Good progress. Don't forget error handling middleware — evaluation checks for it.
AI Teammate
Use a global error handler instead of try/catch in every route.
Ask the PM...
Send
How it works

A structured flow from
task to signal.

Tervlon measures how someone thinks, builds, communicates, and delivers inside a guided sprint — not whether they got the right answer.

01
Get a scoped sprint

Every simulation begins with context, acceptance criteria, and a practical ticket that mirrors actual technical work.

02
Work inside the workspace

Open files, inspect context, run checks, and move through the task like you would in a real engineering flow.

03
Collaborate with AI roles

A project manager guides the sprint, teammates unblock the process, and reviewer feedback strengthens delivery.

04
Get evaluated by signal

You are scored on implementation, reasoning, confidence, communication, and quality of execution.

Reports

Scorecards that show
how someone works.

Every simulation ends with multi-dimensional performance feedback — not a shallow pass or fail.

Your sprint report
Sprint #01 Results
84
Technical accuracy88%
Code quality81%
Problem solving86%
Context handling79%
Delivery confidence84%
↑
Strength

Strong core implementation with solid test coverage. The auth flow handles the main happy path and common failure states cleanly.

!
Watchpoint

Expired session handling could be made more defensive under edge cases and multi-route redirect scenarios.

Reviewer note

Solid delivery. The solution is clear, testable, and ready for the next sprint with minor refinements.

The opportunity

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For developers
Practice the way
real work happens.

Build inside structured sprints that mirror actual team workflows and get scored on execution, not memorization.

For companies
Hire on signal, not guesswork.

Evaluate how candidates ship with sprint data instead of surface-level resume keywords.

For academies
Scale real assessment.

Run practical simulations with built-in scoring without manually orchestrating every exercise from scratch.

Tracks

One framework. Full spectrum.

Starting with backend engineering. The simulation framework extends across the entire engineering discipline.

Live — try it now
Backend Engineering

Build APIs, auth systems, and data layers inside structured sprint simulations. Express, Prisma, PostgreSQL — real tools, real evaluation.

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FAQ

Questions people ask first.

Is this just coding practice?

No. It is structured sprint simulation. You are evaluated on how you work through real delivery, not isolated trivia.

Can companies use this for hiring?

Yes. The system generates stronger execution signal than resumes alone. Companies create assessments and invite candidates to complete sprint simulations.

What tracks are available?

Backend engineering launches first with Node.js, Express, and Prisma. Frontend, DevOps, cybersecurity, mobile, data engineering, and cloud platform tracks follow.

Do AI roles replace human review?

No. They structure the sprint and strengthen the simulation experience. The goal is clearer signal, not fake theatre.

Try it now

Show more than intent.
Show how you execute.

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