Cafe655
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System Architecture

Cafe's AI Operating System

A complete map of every tool, database, MCP server, skill, plugin, hook, and integration powering a Claude-native personal operating system. Built by a house painter, powered by Claude.

Last updated: April 12, 2026

4
Databases
5
MCP Servers
17
Custom Skills
6
Plugins
220K
RAG Documents
12+
Builds Shipped

Core Infrastructure

Claude Code CLI

  • Model: Claude Opus 4 (1M context)
  • Platform: Windows 11 Pro
  • Shell: Bash (Git Bash)
  • Python 3.13 + Node.js (TypeScript)
  • Voice input enabled (push-to-talk)
  • 30+ custom keybindings
  • Custom status line (model + context bar)

Claude Desktop App

  • MCP server host (Workflowy, Discord, RAG)
  • Cowork scheduled tasks (nightly Cockpit)
  • Keep Awake: enabled
  • Subscription: Max

Global CLAUDE.md

system prompt

Mandatory session gate (5-step protocol) • Pre-build coaching check • RAG query-first rule • AI Builds Log protocol • Stream Deck protocol • Session logging • Katie signature convention

Databases4

MCP Servers5

Custom Skills17

RAG Database(9)

/rag-initBootstrap database
/rag-ingestAdd from 6 source types
/rag-queryFTS5 search + citations
/rag-statusDashboard & counts
/rag-updateRetag, link, archive
/rag-lintHealth checks
/rag-syncRe-ingest changed sources
/rag-compileBuild wiki pages
/rag-relateCross-reference graph

AI Coaching(3)

/coachProfile, gaps, terrain, pre-build
/coachmeFull coaching session
/vod-coachDaily life VOD review

Workflowy(2)

/workflowy-system250K+ node structural knowledge
/workflowy-formatPaste-ready outline output

Tools & Hardware(3)

/streamdeckNatural language button builder
/notebooklmDocument Q&A via browser automation
/claude-logSession logging & tracking

External Services7

ServiceRoleConnection
WorkflowyLife operating systemCustom MCP server + 2 skills
NotionDaily execution surfaceNotion MCP plugin
DiscordNotifications + communityHook script + MCP server
Google NotebookLMSource-grounded Q&A/notebooklm skill
GitHubCode hosting + AI Clubhousegh CLI
Stream Deck XLHardware control surface/streamdeck skill + database
VercelWebsite hostingPlugin (disabled)

Hooks & Automation5

Discord Notifications

Resolve session name, POST to Discord webhook

Every notification event

Status Line

Show model + context window bar

Continuous display

Session Gate

Name, color, goal, resume check, log entry

Every session start

Pre-Build Check

Surface tools, gaps, goals, recommendations

Before non-trivial builds

Nightly Cowork

Update Cockpit events + tasks

Scheduled (Claude Desktop)

Builds12

shippedMCP Server

Workflowy MCP Server

TypeScript

shippedKnowledge Base

Personal RAG Database

SQLite + FTS5

shippedDatabase + CLI

AI Fluency Coaching System

Python + SQLite

shippedHardware Bridge

Stream Deck Integration

Python + SQLite

shippedAutomation

Discord Notification Bridge

Python + Bash

shippedSkill

VOD Coaching Skill

Prompt Engineering

shippedBrowser Automation

NotebookLM Skill

Python + Patchright

shippedWebsite

cafe655.com

Next.js 16 + Tailwind

activeCommunity

AI Clubhouse

GitHub + Discord

shippedDashboard

Cafe Cockpit

Notion + Cowork

shippedProtocol

Session Logging System

Skill + CLAUDE.md

in-progressExtension

WFx Chrome Extension

Chrome API

System Flows4

Session Start

/rename + /color→Detect interface→Ask goal→Check resume→Log entry→Pre-build check→Work begins

Build Cycle

Pre-build coaching check→Surface tools & gaps→Build→Post-build log→RAG ingest→Relate & compile

Task Flow

Workflowy Tickler→Task surfaces→Notion task DB→Cockpit (nightly)→Today's Tiny Desk→Execute

Knowledge Flow

Ingest sources→Compile wiki pages→Query with citations→Lint & maintain

Plugins6

Notion
Context7
Frontend Design
Feature Dev
Vercel
Ralph Wiggum

Built by David (Cafe655) with Claude Code • All infrastructure is local-first (SQLite, no cloud dependencies) • Inspired by Andrej Karpathy's RAG pipeline