Arush Kumar

Learning Gen AI Full-Stack Development

#arushk

[Arush Kumar @arushkumardev]

AI Agent vs LLM

They are not the same thing.

LLM
Understands input
Generates output

AI Agent
Uses an LLM
Decides what to do
Uses tools
Observes results
Takes actions

Example-

LLM: Explain my GitHub issues

Agent: I'll fetch the issues, analyze them, and create a summary.

[Arush Kumar @arushkumardev]

Just built a CLI Agent that doesn't just answer—it executes.

In today’s session with @surajtwt_ sir, we moved beyond simple chat and built an architecture with 3 distinct modes: Agent, Ask, and Plan.

#chaicli #chaicode

[Arush Kumar @arushkumardev]

MCP is a standard way for AI applications to connect with external tools and data.

Think-
AI → MCP → Tools / Data

An MCP server can expose
Tools → actions
Resources → files, DBs, documents
Prompts → reusable instructions

Ex-
AI → MCP → GitHub → Fetch issue → Analyze

[Arush Kumar @arushkumardev]

RAG is not just `giving docs to LLM.`

User Question -> Retrieve relevant data -> Add data to context -> LLM generates answer

The key idea:
LLM = reasoning / generation
Retriever = knowledge

This is why RAG works well with private and frequently changing data

#GenAI

[Arush Kumar @arushkumardev]

Built a Voice Agent with @piyushgargdev today! 🎙️

Tinkered with TTS, STT, message queues, and SpeechRecognition. Hit some snags, cracked a few cool cases—like letting users interrupt the AI mid-speech and instantly jump in.

[Arush Kumar @arushkumardev]

Trust the process. Build something interesting.

Today with @piyushgarg_dev Sir, we built a Skill from scratch.

Learned:
• What Skills are
• Why we need them
• How to use them
• How to build & publish our own Skills
• Skills vs MCP, Connectors & Plugins

#GenAI #chaicode

[Arush Kumar @arushkumardev]

🚀 Built a working MVP of a GitHub PR Review Bot.

Used:
• Inngest Workflows
• OpenAI Agent SDK
• Octokit
• GitHub Webhooks
PR created → Webhook → AI Review

@ChaiCodeHQ @piyushgarg_dev

#GenAI #AIAgents #Inngest #GitHub

[dinesh swami @DineshSwami001]

Graph Database & Cypher — Session Completed

great @piyushgarg_dev sir🫡

Learned about nodes, relationships, and Cypher queries, and how connected memories help AI agents retrieve context across sessions

Also designed our own memory flow for long-term agent context.

#chaicode

[Arush Kumar @arushkumardev]

🕷️ Spider Mode: ON

Started building ChaiBookLLM with @surajtwt_ with spiderman costume.

Done these basic part today:
Project Init
Prisma DB
Better Auth
Google Auth
API Routes & Controllers

#GenAI #chaicode

[Arush Kumar @arushkumardev]

@ChaiCodeHQ Developer career shaper
Hitesh Sir (@Hiteshdotcom) .

Happy Birthday to Developer Career Shaper who has inspired thousands of developers. 🎉

[Arush Kumar @arushkumardev]

lovely kids spending time with actual problem

[Srajan @_Creation22]

Write time to get started with leetcode , teaching them young 💀💀

[Arush Kumar @arushkumardev]

@Wella_Insan @nirudhuuu @Hiteshdotcom @piyushgarg_dev Nice 👍

[Arush Kumar @arushkumardev]

Today's GenAI class had a twist - TypeScript.

Started building AI Agents from scratch with @piyushgarg_dev.

Piyush sir taught in class:
• Agent SDK
• Tool Calling
• Agent Handoffs
• Streaming AI State
• OpenAI, Claude & Vercel SDKs

#GenAI #TypeScript #AIAgents @chaicode

[Arush Kumar @arushkumardev]

LinkedIn: 1111
Same numbers. Different vibe. ✨

#LinkedIn #Milestone

[Arush Kumar @arushkumardev]

Today's #GenAI learning with @piyushgarg_dev &
LTM
RAG for Memory
Facts & Episodic Memory
Mem0
vLLM

Bonus by @Hiteshdotcom on Inference Engines.
Learning how AI agents remember, retrieve, and reason.

#RAG #LLM #chaicode

[Arush Kumar @arushkumardev]

Today's #chaicode session centered on enhancing RAG systems.

Key learnings included:
• Advanced RAG
• Step-Back Prompting
• HyDE
• Vector Embeddings

Thanks @Hiteshdotcom @piyushgarg_dev @nirudhuuu @yntpdotme @ChaiCodeHQ

#GenAI #Advanced #RAG

[Arush Kumar @arushkumardev]

Moment I saw this notification on my phone, my excitement went to the next level.

Nothing feels more important than this today.

Time to learn Advanced RAG Patterns with @piyushgarg_dev. 🔥

#GenAI #RAG #chaicode

[Arush Kumar @arushkumardev]

Last day of the #chaicode Mobile Development Cohort.

Built a Jarvis-like AI Assistant using ElevenLabs.

A perfect project to end an amazing mobile development journey.

Thanks, @surajtwt_ Sir! 🙌

#ReactNative #Expo #ElevenLabs #AI

[Arush Kumar @arushkumardev]

AI Study Buddy App with RevenueCat integration in Expo React Native.
✅ Part 1
✅ Part 2

Learned how to implement subscriptions and in-app purchases with RevenueCat.

Thank U, @surajtwt_ Sir, for making the concepts easy to understand.

#ReactNative #Expo #RevenueCat #chaicode

[Arush Kumar @arushkumardev]

@O_Anu_O Hello ma'am, How can face a tough situation? When stack at any point ?