✦ Dex — AI-powered personal knowledge system

Your AI
Chief of Staff

Dex handles the cognitive overhead of professional life. Meetings, people, tasks, career growth — organized through conversation, not configuration.

Tell Dex your role. It builds your system.

CEOCFOCOOCMOCROCPOCIOCISOCHROFounderProduct ManagerSales / Account ExecutiveMarketingCustomer SuccessSolutions EngineeringDesignProduct OperationsRevOps / BizOpsData & AnalyticsFinancePeople (HR)LegalIT SupportCTOEngineering CEOCFOCOOCMOCROCPOCIOCISOCHROFounderProduct ManagerSales / Account ExecutiveMarketingCustomer SuccessSolutions EngineeringDesignProduct OperationsRevOps / BizOpsData & AnalyticsFinancePeople (HR)LegalIT SupportCTOEngineering

Configured for 25 roles across every function — from C-suite to IC

Get Started Free on GitHub → See How It Works

69 stars 15 forks 100% Free & Open Source

Don’t let the name GitHub scare you — you’ll be up and running in 30 minutes.

You’re drowning
in context

Meetings pile up. People blur together. Tasks scatter across a dozen apps. By the time you find what you need, the moment has passed.

You work in tech — you understand what AI can do. But every tool is either too simple to customize or too technical to set up.

What if you had a system that just worked — one that learned how you think and kept everything connected?

Average meetings per week for knowledge workers

3.1h

Lost daily to context switching between tools

62%

Of action items never get followed up on

Tools that remember who you talked to last week

The Dex Difference

A knowledge system that
works for you

Dex isn’t another note-taking app. It’s an AI-powered assistant that organizes your professional life through conversation. No configuration files. No coding. Just tell it things, and it handles the rest.

Core Capabilities

Everything connects.
Nothing falls through.

Six systems working together, so you don’t have to.

💬

Capture Without Friction

Just talk. “Sarah’s worried about timeline but interested in Q2 pilot.” Dex figures out where it belongs, updates person pages, links to projects. One decision, instant routing.

🎯

Smart Daily Planning

Every morning, Dex checks your calendar, reviews open tasks, and creates a focused daily plan. Must / Should / Could — not a flat list, a strategy for your day.

🤝

Relationship Intelligence

Never walk into a meeting cold again. Dex automatically builds rich profiles for everyone you interact with — who they are, what you discussed, what they care about.

✅

Tasks That Get Done

Deduplication catches repeat tasks. Ambiguity detection flags vague commitments. Priority limits stop you from overcommitting. Every task connects to your strategic goals.

📈

Career Growth Engine

Dex captures career evidence while you work. When promotion time comes, you have months of documented achievements — not a last-minute scramble to remember impact.

🔄

Self-Evolving System

Mention an improvement idea, Dex captures it. It tracks what you use, suggests features you’re missing, and gets smarter the longer you use it. The system grows with you.

How It Works

Three steps to a calmer
professional life

Set Up in Minutes

A guided conversation gets you running. Tell Dex your role, your priorities, and how you like to work. No config files. No terminal commands.

→

Talk to It Daily

Start your morning with a plan. Capture thoughts naturally. Process meetings with a single command. Dex routes everything to the right place.

→

Watch It Compound

After a week, rich person pages. After a month, pattern recognition. After a quarter, career evidence and strategic insight you never had before.

A Day With Dex

From reactive
to in control

Here’s what a typical day actually looks like.

8:30am

Morning Plan

One command. Five minutes. You get an overnight intel summary, meeting prep for everyone you’re seeing today, and exactly 3 focus items. Heavy meeting day? The system sees that and adjusts automatically.

10:00am

Proactive Support

The system scans recent conversations and surfaces where you can add value. Customer mentioned capability gaps? Dex drafts a message offering your help — before you’re even asked.

2:00pm

After a Call

Meeting ends. Transcript imported. Person pages updated. Three follow-ups extracted. Dependency flagged for the product team. Message drafted with full context, ready to send. Nothing slips through.

Friday

Weekly Synthesis

Themes across your week. Patterns from conversations. Learnings captured silently all week now surfaced with suggestions: “I noticed three improvements we should make. Want me to build them?” Tomorrow’s system is better than today’s.

Early Adopters

Professionals who got
their time back

“

I used to spend 20 minutes before every call scrambling for context. Now I just ask Dex. It knows who I talked to, what we discussed, and what I promised. It’s like having a perfect memory.

Sarah C.

VP of Product, Series B SaaS

“

The daily planning changed everything. I went from reactive firefighting to actually finishing what matters. My team noticed the difference within a week.

Marcus R.

Head of Sales, EMEA

“

I manage 40 accounts. Before Dex, things slipped through constantly. Now nothing falls through the cracks — and I didn’t have to learn any technical tools to make it happen.

Priya S.

Director of Customer Success

“

When promotion time came, I had six months of documented impact ready to go. My manager said it was the strongest case she’d seen. Dex captured it all while I was just doing my job.

James F.

Senior Product Manager

Your AI Chief of Staff: Building a Personal Operating System with Claude Code

The full walkthrough — how Dex works under the hood, the building blocks (CLAUDE.md, Hooks, Skills, MCP), career development integration, and a step-by-step getting started guide. Everything you need to understand what’s possible.

386 likes · 111 comments · LinkedIn

Read the Full Article →

Built By

Dave Killeen

Field CPO, EMEA at Pendo · Host of The Vibe PM Podcast

After 8 months of building a personal operating system with Claude Code, Dave open-sourced the whole thing. Not for content fodder or AI hype — as a practical solution for a role with more moving pieces than anyone can track alone.

Too many relationships to track. Too many deals to monitor. Too much content to consume. Too many commitments that slip through cracks. Dex was built because it was needed — a Chief of Staff that handles cognitive overhead so you can focus on conversations and decisions that actually matter.

25+ years of product leadership across BBC, MailOnline, Badoo/Bumble, and now Pendo. The Vibe PM Podcast helps professionals get more out of AI — no engineering required.

LinkedIn The Vibe PM Podcast

The best part? You don’t need to be an engineer. The system adapts to 31 different roles. Answer one question and it scaffolds everything for you.

This is the year of the Personal Operating System.

Your AI
Chief of Staff

You’re drowning
in context

A knowledge system that
works for you