The Anatomy of an Agentic OS: Why 90% of the Value Is Invisible
TL;DR. 90% of an Agentic OS value hides in the backend, not the dashboards. Learn the 4-level Claude Code stack: skills, memory, loop engineering, and second-brain design.
Published: Jul 12, 2026, 02:15 PM
Topic: Agentic Ai
Source: https://www.youtube.com/watch?v=HRw-vP0j8OM
π Overview
- Type: Lecture / Tutorial (with product demo and light sponsor segment)
- Main Topic: How to build a personal "Agentic OS" on top of Claude Code, structured as a 4-level stack where the real value lives in the invisible backend (skills + memory), not the flashy dashboards.
- Speakers: A single presenter β an AI developer/educator (creator of the "Chase AI+" masterclass), speaking directly to camera while demoing his own builds.
π― Core Purpose & Context
- The video exists to reframe what an "Agentic OS" actually is. Newcomers see impressive dashboards (buttons, metrics, Jarvis-like voice) and either lust after them or dismiss them as "smoke and mirrors." The presenter argues both camps miss the point.
- The goal is to teach viewers to build their own OS β and, more importantly, to internalize transferable Claude Code fundamentals (loop engineering, skill architecture, state management, second-brain construction) that apply to any project.
- Secondary goal: soft-promoting his paid "Claude Code Masterclass" inside Chase AI+, where his exact demo builds live.
π§ Key Concepts & Steps
The 4-Level Agentic OS Framework
| Level | Name | What It Is | Value Weight |
|---|---|---|---|
| 1 | Backbone (Skills + Loop Engineering) | Codifying repeated Claude Code work into skills & automations | ~90% (with L2) |
| 2 | Memory & State Control | A coherent file structure / database (Obsidian-based) as a "second brain" | ~90% (with L1) |
| 3 | Interface & UI | A custom visual wrapper (web app or Obsidian plugin) around L1βL2 | "Cherry on top" |
| 4 | Distribution | Sharing the OS with team/clients via one-click buttons | "Cherry on top" |
Figure 1: The 4-level Agentic OS stack β the invisible lower layers drive nearly all the value.
Figure 2: The four sub-phases of Skill Architecture form a compounding loop, not a one-time setup.
Central thesis: "These two levels [1 & 2] is where we make most of our money. This is 90% of the value of any sort of AI OS." Everything visible (L3βL4) is optional polish.
Level 1 β Skill Architecture & Loop Engineering (4 Sub-Phases)
1. Workflow Audit β Know what to build skills for. Three methods to extract your recurring tasks:
- Manual: You already know your tasks β explain β convert to a skill (via the skill creator skill). Risk: you may not have validated the workflow first. Ideal: do it manually once, confirm it works, then tell Claude to skillify it.
- Session Review: Claude Code has access to your past sessions (tool calls, full back-and-forth). Prompt it to review your last 10 sessions, pull out repeated tasks, and produce a chart of (task β desired output β proposed skill). Advantage: based on real data, not guesswork.
- Interview: Give Claude a "stream of consciousness" about your daily/weekly work; instruct it to interview you, flag blind spots, and extract skill-candidates.
Mental Model: Treat Claude Code like a new personal assistant β offload tasks by giving step-by-step instructions. "Most people don't do this."
2. Skill Creation β Codify tasks into editable, tangible workflows organized by domain (the presenter's: research, content, community, agency, sales). Under "content": outlines, video hooks, content repurposing, carousels β "Why are those not skills? Truthfully, they should be."
Figure 3: The index.md router at every folder level turns the vault into a navigable map, reducing token cost and lookup time.
3. Automation β If a skill repeats, automate it:
- Prompt directly: "Can we turn that skill into an automation?"
- Visual route via Claude Desktop β Routines: name it, instruct "run [skill name]," set a schedule.
4. Loop Engineering β Add a self-improvement loop on top of automations. Requires memory (Level 2) so the loop can see past runs and improve future ones. (References a prior dedicated loop-engineering video.)
Level 2 β Memory & State Control
Core insight: It's not really about Obsidian. Obsidian is just free and easy. The true value is coherent file structures.
"You could probably have no database and no Obsidian, and if you just set up Claude Code with a file structure that is coherent and makes sense, you're like 99% of the way there."
Obsidian Setup Steps:
- Download Obsidian (free).
- Designate a folder as the vault (put copies of relevant data there, e.g., all sales data).
- Navigate the terminal into the vault folder β open Claude Code β it's now connected.
The Karpathy Obsidian "RAG" Structure (from a 20M+ view tweet):
- Vault (root)
raw/β unstructured data (articles, research dumps)wiki/β structured data (Wikipedia-style articles distilled from raw)outputs/β deliverables (slide decks, final artifacts)
The REAL secret β index.md at every level:
- Each folder contains an
index.md(a markdown table-of-contents) telling Claude what it's looking at and where to go next. - This turns the vault into a map. Claude hits root
index.mdβ routed towiki/β hitswiki/index.mdβ finds the article. - Payoff: faster answers + fewer tokens + lower cost. "The power comes from that, not necessarily the somewhat arbitrary folders."
Customization: The folder names (raw/wiki/outputs) are arbitrary β build a structure unique to your data. If unsure, ask Claude Code to design one using Karpathy's setup as inspiration. Add a Claude.md file documenting vault conventions + a navigation pattern (the presenter's real vault has: content, notes, runs, inbox, ops, projects, etc.).
Tie-in: Loop engineering needs this state layer β outputs must be logged coherently so self-improving loops can review past runs.
Level 3 β Interface & UI (The "Visual Wrapper")
Two flavors, both running Claude Code under the hood:
- Web App version: Custom metrics (YouTube subs, Instagram, latest video, Claude 5-hour usage window, Google Calendar directives). Right-side = skills/automations turned into one-click buttons (e.g., "Inbox Brief" β queues β runs headless β drafts emails, flags priorities).
- Obsidian Command Center version: A plugin providing similar dashboards (token burn, tabbed views for audience metrics + research).
Voice Layer: A fully local voice model (not 11Labs, so free) reads briefs aloud. Demo output: "32 threads triaged with a gear-up contract and the OpenAI merge campaign flagged urgent."
How to build it: Screenshot a design you like β feed to Claude Code β "here are my skills, connect this to the vault, here are my key metrics, build a visual wrapper." For Obsidian: ask Claude to convert the web app into an Obsidian plugin.
Under the hood β the technical mechanism:
- Buttons call a headless version of Claude Code via the
claude -pcommand β invisible, no terminal pops up. - The
claude -pcontroversy: Anthropic announced-pmight pull from a $200 API credit instead of the Max subscription. They've since walked it back; for now it still uses your Max plan (same cost as running the terminal manually).
Figure 4: The Agentic OS is a compounding flywheel β each layer feeds the next, making the system more valuable with every cycle.
Level 4 β Distribution
- Turning skills/automations into buttons = "spinning someone up on Claude Code without actually spinning them up on Claude Code."
- Web app distribution = easy: push to GitHub, zip it, clone it. Point Claude Code at it and go.
- Obsidian distribution = harder: requires hands-on setup per user (no simple clone-a-repo path).
- The human factor: "99% of people just won't go there [the terminal]... it is a bridge too far." A dashboard/voice/button interface fundamentally changes how non-technical people adopt these tools β especially valuable for client work and raising an org's baseline capability ("raise the floor").
π§ Strategic Analysis & "Game Changers"
Hidden Connection β The Compounding Flywheel: The presenter presents L1βL4 linearly, but they form a loop: Workflow Audit β Skills β Automation β Loop Engineering requires Level 2's logged state to function β which then feeds better skills. The OS is designed to improve itself over time, making early setup an appreciating asset.
The "So What?": The frame flips the entire hype cycle. While the market obsesses over UI (dashboards, voice, "Jarvis"), the presenter asserts the moat is codification + coherent memory β things that are invisible, unglamorous, and transferable to any model (Claude, Codex, or a local model). This makes the skillset model-agnostic and future-proof.
Game Changer: The single most valuable idea is using Claude Code's access to your own past sessions to reverse-engineer your own workflows into skills. Instead of guessing what to automate, you mine real behavioral data ("review my last 10 sessions"). This removes the biggest friction point β deciding what to build β and turns implicit habits into explicit, self-improving infrastructure.
Underrated Insight β The
index.mdmap: Most people building "AI knowledge bases" focus on volume of data. The presenter reframes it as a routing/cost problem: a well-mapped vault isn't just faster, it's cheaper (fewer tokens). This reframes knowledge management as an economics decision.Distribution as a Business Wedge: Level 4 is quietly a monetization thesis for agencies/consultants. Non-technical fear of the terminal is a real, large market. Wrapping backend power in a one-click UI is a productizable service.
π Detailed Breakdown
- [00:00:00] Opening hook: "If you don't know how to build your own agentic OS, then you are falling behind" β but not because of dashboards. Value = loop engineering, skill architecture, state management, second brain, bundling into a coherent product.
- [00:01:06] Introduces the level-by-level breakdown. Notes two "camps": the "this looks cool" camp vs. the "smoke and mirrors" camp β both miss the fundamentals under the hood.
- [00:02:18] Defines the 4 levels. Emphasizes model-agnosticism (works with Codex or local models).
- [00:03:10β00:04:08] Level 1 (backbone/skills) and Level 2 (memory/state) = "90% of the value."
- [00:04:08β00:05:27] L3 (interface/UI) and L4 (distribution) framed as the extras; distribution "raises the floor."
- [00:05:27β00:05:59] Reiterates that L1βL2 work in plain terminal/CLI; UI not required.
- [00:05:59β00:06:40] Sponsor segment: his own "Claude Code Masterclass" inside Chase AI+, updated weekly, includes personal builds.
- [00:06:40β00:08:04] Level 1 breakdown begins: 4 sub-phases (audit, creation, automation, loop). Workflow audit = "if you do nothing else, this will supercharge how you work."
- [00:08:04β00:10:04] Visual: You β Claude Code manual loop. Domains breakdown (research, content, community, agency, sales). Content sub-tasks: outlines, hooks, repurposing, carousels.
- [00:10:04β00:12:35] Three audit methods detailed: Method 1 (manual + skill creator skill); Method 2 (review last 3/5/10/20 sessions to extract skill candidates + chart).
- [00:12:35β00:13:58] Method 2 prompt example given; Claude finds session files.
- [00:13:58 / ~00:10:01 timestamps overlap] Method 3 (interview): stream-of-consciousness + Claude flags blind spots. "Turn what we do into a checklist... like bringing in a personal assistant."
- [~00:10:46β00:11:46] Skills = editable tangible workflows. Example task found: "checking for tool and repo updates for videos." Move from manual β skill β automation.
- [~00:11:46β00:12:18] Automation setup: prompt "turn skill into automation" OR Claude Desktop β Routines (name, instruction, schedule).
- [~00:12:18β00:13:22] Loop engineering foundation laid by skills+automation; ties to memory/state.
- [~00:13:22β00:14:29] Recap of L1: codifying your life for consistent outputs; modular and stackable.
- [~00:14:29β00:16:16] Level 2 begins. Obsidian caveat β could be any database or just coherent file structure. Obsidian install β designate vault folder.
- [~00:16:16β00:17:27] Vault = a designated folder; put copies of relevant domain data (e.g., sales) inside.
- [~00:17:27β00:19:44] Connect Claude Code by opening it inside the vault folder. File structure is "not a trivial question" β poor structure = slow + expensive (more tokens).
- [~00:19:44β00:20:24] Mental model = building a map / knowledge graph. Obsidian = filing cabinet.
- [~00:20:24β00:22:35] Karpathy tweet (20M+ views). Structure: vault β raw (unstructured) β wiki (structured) β outputs (deliverables). AI-agents research example walked through.
- [~00:22:35β00:00:23 (next block)] The real beauty =
index.mdat every level acting as a table of contents/router. - [~00:00:23β~00:04:47] Walkthrough of Claude navigating index.md files; power = the map, not arbitrary folders. Add
Claude.mddocumenting vault conventions + navigation pattern. Presenter's real vault: content, notes, runs, inbox, ops, projects. - [~00:04:47] Master L1+L2 = 90% power; all doable via terminal.
- [~00:04:47β~00:07:44] Level 3: web-app dashboard demo (metrics on left, one-click skill buttons on right). "Inbox Brief" button demoed β headless Claude triages inbox, drafts, flags urgent.
- [~00:07:44β~00:07:56] Voice demo: "32 threads triaged... OpenAI merge campaign flagged urgent." Local voice model = free.
- [~00:07:56β~00:10:00] Obsidian command-center version (token burn, tabs). How to build: screenshot inspiration β Claude builds web app β convert to Obsidian plugin.
- [~00:10:00β~00:12:47] Under the hood: buttons call headless
claude -p. Theclaude -pAnthropic controversy (API credit vs Max plan) β walked back, still uses Max plan for now. - [~00:12:47β~00:30:00] Level 4 distribution: web app easy (GitHub/zip), Obsidian harder (manual setup). Non-technical adoption barrier β terminal is "a bridge too far" for 99%; dashboards change adoption.
- [~00:30:00β00:30:54] L3+L4 = "cherry on top."
- [00:30:54βend] Final recap: invest almost all time in L1+L2 (skills, loops, automation, codification, memory, state = second brain). Sign-off with Chase AI+ plug.
π Key Takeaways
- The value of an Agentic OS is invisible β 90% lives in skills + memory (L1βL2), not dashboards. All of it works in the plain terminal.
- Mine your own past sessions to auto-discover which repeated tasks deserve to become skills β real data beats guesswork.
- File structure IS the product: a coherent map with
index.mdrouters at every level makes Claude faster and cheaper. Obsidian is optional; coherence is not. - The self-improving loop requires logged state β skills + automation + memory combine into a second brain that gets better over time.
- UI + distribution are force-multipliers, not the core β one-click buttons let non-technical teams/clients access Claude's power without ever touching a terminal.
β Unresolved Questions / Follow-up
claude -pbilling risk: Anthropic "walked back" the API-credit change β but will it return? Long-term reliance on headless calls carries cost uncertainty.- Obsidian distribution was flagged as "harder" but never fully explained β no concrete step-by-step for deploying the Obsidian plugin to a team.
- Loop engineering was deferred to a separate prior video β the actual mechanics of building the self-improvement loop are not detailed here.
- Local voice model β which model/tool is running locally is never named.
- Scaling limits: No discussion of what happens with thousands of files/tokens in practice (latency, context-window ceilings) beyond the general "it gets slow/expensive" warning.
- Security/privacy of putting sensitive data (e.g., all sales data) into a vault accessed by Claude Code is not addressed.
Tags: Claude Code, Agentic OS, Skill Architecture, Loop Engineering, Obsidian RAG
Frequently Asked Questions
What is an Agentic OS?
An Agentic OS is a personal operating system built on top of Claude Code, structured as a 4-level stack where skills and memory drive nearly all the value, while dashboards and UI are optional polish.
What are the four levels of the Agentic OS framework?
The four levels are Backbone (skills + loop engineering), Memory & State Control (an Obsidian-based second brain), Interface & UI, and Distribution. Levels 1 and 2 account for about 90% of the value.
Why does the presenter say 90% of the value is invisible?
Because the real value lives in the backend skills and memory architecture, not the flashy dashboards or voice interfaces. Visible layers like UI and distribution are described as 'cherry on top' polish.
What are the four sub-phases of Level 1 skill architecture?
Level 1 consists of Workflow Audit, Skill Creation, Automation, and Loop Engineering, which form a compounding self-improvement loop rather than a one-time setup.
What is a Workflow Audit in Claude Code?
A Workflow Audit is the process of identifying your recurring tasks so you know what to build skills for, using methods like manually explaining known tasks and converting them into a skill via the skill creator skill.
Glossary
- Agentic OS
- A customized product built on Claude Code bundling skills, memory, interface, and distribution into a coherent system whose value lies under the hood.
- Claude Code
- Anthropic's terminal-based coding agent that serves as the engine under the hood of the agentic OS, executing skills and automations.
- Loop Engineering
- Building self-improving constructs where Claude records past runs and uses that history to improve future iterations.
- Skill Architecture
- The backbone of Level 1: codifying recurring tasks into reusable skills that produce specific, consistent outputs.
- Skill
- A codified workflow telling Claude to do a specific thing in a specific way for a specific output; editable as a tangible file.
- Skill Creator Skill
- A skill used to convert a validated manual task into a new reusable skill inside Claude Code.
- Workflow Audit
- The first Level 1 sub-phase of listing everything you do day-to-day and week-to-week across domains before creating skills.
- Automation
- A repeated skill converted into a scheduled or triggered task, set up via prompt or Claude desktop routines.
- Memory & State Control
- Level 2: a database of information Claude can draw upon and record to, enabling retrieval and self-improving loops.
- Obsidian
- A free note-taking app where a designated folder becomes a 'vault'; Claude Code connects by opening inside that folder.
- Vault
- The folder designated in Obsidian that holds all files and information Claude Code should know about.
- File Structure
- A coherent hierarchy of folders and files acting as a map so Claude can find answers quickly and cheaply.
- Karpathy Obsidian Setup
- A widely-shared knowledge base structure using raw, wiki, and outputs subfolders, popularized by a 20M+ view tweet.
- RAG
- Retrieval-Augmented Generation; used in air quotes here since the Karpathy folder system is not a true RAG system.
- index.md
- Markdown table-of-contents files at every vault level telling Claude what it's looking at and where to navigate.
- CLAUDE.md
- A file documenting vault conventions, folder structure, and the navigation pattern Claude should follow.
- Second Brain
- The system of codified skills plus logged memory that Claude references to surface insights and self-improve.