# Optimize your dev workflow with Claude Code and Codex Day2 Lab

> In this lab, Kevin walk throughs building a composable testing and validation pipeline using Claude skills. He starts a test server, then create a lint and test skill, and finally build Playwright based smoke tests that record browser actions and send videos to Telegram via MCP, then wrap everythin…

- Web page: https://www.dataexpert.io/lesson/optimizeyourdevworkflowwithclaudecodeandcodexday2lab-mar26-p737-l2144
- Program: [AIExpert](https://www.dataexpert.io/program/ai-expert)
- Module: Week 2: Advanced RAG, Reranking & Dev Workflow
- Access: Requires enrollment in AIExpert
- Length: 1 h 3 min video
- Skills: Python, Git, APIs, Problem Solving
- Academy: DataExpert.io Academy

## About this lesson

In this lab, Kevin walk throughs building a composable testing and validation pipeline using Claude skills. He starts a test server, then create a lint and test skill, and finally build Playwright based smoke tests that record browser actions and send videos to Telegram via MCP, then wrap everything in a validate skill. He then creates a top level feature skill that plans, builds, and adds a new favourites feature to the smoke tests, so validation runs end to end.

## Navigation

- Previous lesson: [Optimize your dev workflow with Claude Code and Codex Day2 Lecture](https://www.dataexpert.io/lesson/optimizeyourdevworkflowwithclaudecodeandcodexday2lecture-mar26-p737-l2143.md)
- Next lesson: [Day 1 Lecture: Graph RAG vs Vector RAG](https://www.dataexpert.io/lesson/advanced-rag-and-agentic-ai-day1-lecture-july2025-p737-l1178.md)