Uploaded July 2026 | Updated September 2026, 2 weeks ago
Download the FREE Claude Code for Marketing Guide from HubSpot! clickhubspot.com/4388d4
Everyone uses Claude Code, but almost nobody knows what's actually happening under the hood. So I built my own version of it from scratch to find out.
In this video I break down how coding agents like Claude Code really work: the agent loop, how the model decides which tools to call, how it reads and edits your files, runs terminal commands, and manages context so it doesn't forget what it's doing. Then I put the pieces together into a working mini Claude Code you can build yourself.
Want to make real money with coding? I share high-signal insights on careers, monetization, and leverage in my free newsletter. Join here and get my guide How to Make Money With Coding instantly: techwithtim.net/newsletter
🚀 Tools I Use
Get 10% off with code techwithtim
Openclaw setup: hostinger.com/techwithtim
VPS setup: hostinger.com/techwithtim10
Wispr Flow (Best AI Dictation): ref.wisprflow.ai/TechWithTim-jul26
⏳ Timestamps ⏳
00:00 | Overview
00:30 | Two Goals
00:54 | What is Claude Code?
01:45 | 5 Building Blocks
02:11 | Model
03:26 | Tools
05:18 | Memory
07:14 | Context
09:12 | Guardrails
10:19 | HubSpot
11:38 | What an LLM Actually Does
13:00 | Tool Calls Explained
16:29 | Guardrails Demo
17:17 | Context Window Breakdown
19:26 | Putting it All Together
20:40 | Full Code Demo/Build
Hashtags
#ClaudeCode
UAE Media License Number: 3635141
Download the FREE Claude Code for Marketing Guide from HubSpot! clickhubspot.com/4388d4
Everyone uses Claude Code, but almost nobody knows what's actually happening under the hood. So I built my own version of it from scratch to find out.
In this video I break down how coding agents like Claude Code really work: the agent loop, how the model decides which tools to call, how it reads and edits your files, runs terminal commands, and manages context so it doesn't forget what it's doing. Then I put the pieces together into a working mini Claude Code you can build yourself.
Want to make real money with coding? I share high-signal insights on careers, monetization, and leverage in my free newsletter. Join here and get my guide How to Make Money With Coding instantly: techwithtim.net/newsletter
🚀 Tools I Use
Get 10% off with code techwithtim
Openclaw setup: hostinger.com/techwithtim
VPS setup: hostinger.com/techwithtim10
Wispr Flow (Best AI Dictation): ref.wisprflow.ai/TechWithTim-jul26
⏳ Timestamps ⏳
00:00 | Overview
00:30 | Two Goals
00:54 | What is Claude Code?
01:45 | 5 Building Blocks
02:11 | Model
03:26 | Tools
05:18 | Memory
07:14 | Context
09:12 | Guardrails
10:19 | HubSpot
11:38 | What an LLM Actually Does
13:00 | Tool Calls Explained
16:29 | Guardrails Demo
17:17 | Context Window Breakdown
19:26 | Putting it All Together
20:40 | Full Code Demo/Build
Hashtags
#ClaudeCode
UAE Media License Number: 3635141
