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Zain Kahn

This guy from Cambridge plays with Claude Code like he owns it.

He talks about his workflow in 2026 and here's what's new: 

1. Video-Based Specification (Spec Phase)

> Screen Recording: 

Instead of writing a spec from scratch, find an existing product that is similar to your idea. Record your screen while using it and talking through your specific feature ideas and changes.

> Generate PRD: 

Upload this video to Gemini 1.5 Pro (referred to as Gemini 3 Pro/Free Pro in the video context) and ask it to generate a Product Requirement Document (PRD).

> Refine Spec: 

Use the "Ask User Question" tool in Claude Code. Prompt it to interview you about the generated spec to fill in missing details (e.g., "How should the emoji picker be positioned?").

> Package Discovery: 

Feed the refined spec into ChatGPT with "Heavy Thinking" (likely OpenAI's o1/o3 models) to search for and recommend specific, well-maintained GitHub packages (e.g., for a WYSIWYG editor) to avoid building complex components from scratch.

2. The Orchestrator Role

> Design Feedback Loops: 

Your primary job is not to write code but to design loops where the agent can build, fail, and learn.

> Monitor & Update: 

Watch the agent’s reasoning. If it makes a mistake, don't just fix the code—update the claude. md (project instructions file) to prevent that specific mistake from happening again.

> High-Level Decisions: 

Make the architectural decisions the agent can't, such as choosing the database or specific tools.

3. Model Choice & Tools

> Model Selection: 

Use Opus 4.5 for building large-scale features and GPT-5.2 for architecture and debugging (specific future models mentioned in his 2026 context).

> Voice Dictation: 

Use HyperWhisper to dictate prompts significantly faster than typing.

4. Execution & "Parallel Vibe Coding"

> Parallel Agents: 

For small, well-defined tasks (like extracting hard-coded strings for translations), spin up multiple sub-agents to work on different parts of the project simultaneously.

> Avoid Conflicts: 

Do not use parallel agents for large features within the same project to avoid complex merge conflicts ("meshing issues").

> Sub-agents for Multi-Project Fixes: 

If a bug exists in a template used by multiple projects, spin up one sub-agent per project to fix them all in parallel.

5. Review & Maintenance

> Planning Mode: 

Use Claude Code’s "Planning Mode" to prevent Architectural Drift, ensuring the agent sticks to the original design vision over time.

> Shape of Diffs: 

Inspect the "shape" of the code changes (diffs) to ensure they are manageable and align with expectations before accepting them.

> Forking for Learning: 

If the agent does something surprising or complex, fork the session. In the forked session, ask "Why did you do that?" or request diagrams to understand the code without polluting the context of the main working session.

Get more tutorials here: https://lnkd.in/e64Jvdrt

Follow me to learn how you can leverage AI to boost your productivity and accelerate your career. Scaled products to 10 Million+ users.

Traditional computer science degrees can't keep up with this pace.

Here are the 15 engineering blogs that actually teach real-world scale:

1 → THE CODE
Scale at global level.
Teaches you how to code with AI and AI Agents
https://lnkd.in/e64Jvdrt

2 → Airbnb Tech Blog
Product engineering done right.
User focused systems.
https://airbnb.tech/blog/

3 → Meta Engineering
Billions of users infrastructure.
Performance at extreme scale.
https://engineering.fb.com

4 → AWS Architecture
Cloud design patterns revealed.
Production ready blueprints.
https://lnkd.in/gqjh88PS

5 → Netflix TechBlog
Streaming at massive scale.
Chaos engineering explained.
https://lnkd.in/gNE8Cs6Z

6 → Discord Engineering
Real time systems mastery.
Handling millions of connections.
https://lnkd.in/gea6kSwt

7 → Google Research
Cutting edge tech breakthroughs.
Tomorrow's solutions today.
https://lnkd.in/gjzDu8wp

8 → NVIDIA Developer
GPU powered computing insights.
AI infrastructure secrets.
https://lnkd.in/dt_BW7qF

9 → Slack Engineering
Collaboration platform internals.
Distributed systems at scale.
https://slack.engineering

10 → Cloudflare Blog
Internet infrastructure deep dives.
Security and performance wins.
https://lnkd.in/gqa-HE6h

11 → Figma Tech Blog
Collaborative design systems.
Browser performance magic.
https://lnkd.in/g2KF_eX9

12 → Shopify Engineering
E-commerce at scale.
Black Friday traffic handled.
https://lnkd.in/g7DVzRAc

13 → Stripe Engineering
Payment systems that work.
Financial infrastructure explained.
https://lnkd.in/gfMr-jEr

14 → Microsoft Engineering
Enterprise scale solutions.
Developer tools insights.
https://lnkd.in/g3Mi8XES

15 → GitHub Engineering
Code collaboration at scale.
Developer platform secrets.
https://lnkd.in/gPHaD6AC

16 → Bonus
System design deep dives.
https://lnkd.in/g-tP7eEc

Save this for later.
Repost ♻️ for aspiring engineers.

Follow me for more AI playbooks and engineering resources.

Claude Code is only as good as your orchestration workflow.

I spent 6 months testing it so you don't have to. 

[ P.S. You can get my Ultimate Claude Code guide for engineers here at no cost: https://lnkd.in/e64Jvdrt ]

So Boris Cherny (the creator of Claude Code at Anthropic) recently shared the internal best practices his team actually uses daily. 

Someone brilliantly distilled those threads into a structured CLAUDE .md file you can drop straight into any project root.

It acts as a system prompt. Turns Claude into a far more autonomous, rigorous engineering partner.

Here's what it does:

→ 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗢𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻: Mandates "Plan Node Default" for any task over 3 steps. Uses subagents liberally to keep the main context window clean.

→ 𝗦𝗲𝗹𝗳-𝗜𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁 𝗟𝗼𝗼𝗽: This is the real magic. After ANY correction, it updates a tasks/lessons .md file. You're building a compounding system where the mistake rate drops over time because it actively learns from your feedback.

→ 𝗩𝗲𝗿𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗕𝗲𝗳𝗼𝗿𝗲 𝗗𝗼𝗻𝗲: Can't mark a task complete without proving it works. Diffs behavior. Runs tests. Checks logs. The bar? "Would a staff engineer approve this?"

→ 𝗔𝘂𝘁𝗼𝗻𝗼𝗺𝗼𝘂𝘀 𝗕𝘂𝗴 𝗙𝗶𝘅𝗶𝗻𝗴: Zero hand-holding. Point it at failing CI tests or error logs... it just goes to work. No constant context switching from you.

→ 𝗦𝘁𝗿𝗶𝗰𝘁 𝗧𝗮𝘀𝗸 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Forces a "Plan First" approach written to a todo .md with checkable items before any implementation starts.

And perhaps the most important part?

It forces the AI to prioritize simplicity, find root causes instead of temporary fixes, and minimize the blast radius of every change. Senior developer standards. Not shortcuts.

If you're spending hours a day in the terminal with AI, setting up a strong .md instruction file like this isn't optional anymore. It's the difference between AI that drifts and AI that compounds.

It takes time to set up. But if you do, you're ahead of almost everyone else.

Lemon is the most powerful tool I've used since ChatGPT.

You literally say things with your voice and it does it for you instantly.

Pure magic.

Essentialist

Investor & Advisor

AKIN Ventures

AKIN Ventures provides direct investment and strategic partnership to innovative, positively disruptive companies in the Health, Well-Being, & Lifestyle industries. Start-ups, mid cap/growth and in 1 case, a non-profit. The fund's missions is to support business as a 'force for good'.
• Sectors: Health & Wellness, Apparel, Lifestyle, & Hospitality 
• Causes: Social Impact Investing, Health & Wellness, Meditation
• Partnerships include: Storelli Sports, Quantum Energy Bars, Urban Umbrella, Grameen America 
• Direct Investments: Peloton, Samba TV, Beyond Meat, Poshmark, + Others

Founder & Managing Partner 

Health Information Project (HIP), Inc.

Health Information Project (HIP) is a nonprofit organization, based in Miami, Florida. HIP empowers high school students to tackle the health crises of their generation. The program is revolutionizing health education by transforming high school students into teachers and disrupting traditional health classes with a new, innovative peer-to-peer model. HIP is poised to change the way health education is taught in high schools nationwide!

Chairman of the Board

The David Lynch Foundation

Since 2005, the David Lynch Foundation has helped to bring the stress-reducing Transcendental Meditation technique to more than 500,000 children and adults around the world. Efforts are focused on underserved inner-city students; veterans with PTSD; and women and children who are survivors of violence and abuse.

Senior Advisor 

Casa Del Sol Tequila

Female co-founded and targeted brand disrupting the tequila sector. 🚀

Quantum Energy Squares

Sports nutrition that's giving a boost to peak performance training. Official Energy bar for Ironman Triathlon Series 💪🏻

Storelli

Sports tech apparel and fashion that’s positively disrupting soccer and contact sports! Protective head and body gear ⚽️

Investor & Advisory Board

ESPN

•  ESPN, A Walt Disney Company, is the Worldwide Leader in sports media and entertainment
• Built and managed an international sales-representative team with offices in Japan, Korea, China, South Africa and Latin America
• Structured traditional and digital media campaigns. Clients included: Toyota, Sony, KIA Motors, Hyundai, Nokia, Samsung, and LG Electronics, 20th Century Fox, Warner Bros Pictures. 
• Launched sales initiative for ESPN Deportes, US Hispanic network
• Strategized with senior client decision makers on how to optimize media buying and leverage their association with professional sports leagues and events.  
• Met and/or exceeded worldwide sales budget goals annually.

Manager, International Media Sales

MTV Networks

• MTV Networks, is the media division of ViacomCBS that oversees the operations of many of its television channels and Internet brands including MTV, Nickelodeon, The Comedy Channel, VH1
• Represented Nickelodeon as the network launched in the Latin American market
• Managed a sales staff with offices in Miami, Mexico, Brazil, and Argentina

Manager, Latin American Media Sales

As an International Business Development Executive, Entrepreneur and Investor I have always strived to both build and invest in companies that add value to people’s lives. For 20 years I have focused on business growth in health & wellness, sports & social enterprise.

Having spent the last 15 years as a venture capital & impact investor, I have spent my career at the unique intersection of both investing in and growing companies. An experienced entrepreneur, I’ve built and grown start-ups from the ground up: acquisition, corporate expansion, business development, marketing, branding, sale of business.  

I’ve enjoyed business development and sales executive roles for globally recognized brands: ESPN (Walt Disney Company) & MTV Networks (Viacom).

A strategic thinker with a clear understanding of the complexities facing entrepreneurs as well as investors, I enjoy serving as a strategic advisor to portfolio company CEOs or to the advisory board.  

Distinct ability to synthesize complex ideas and communicate them clearly to a diverse, and at times, highly demanding audience.

Having worked in New York City, Miami, London, Los Angeles and currently Madrid, I possess a global mindset.  I’ve developed strong cross-cultural and international management experience. I'm multilingual: English, Spanish, Italian.  

I’ve always attempted to pursue success while staying true to myself and the causes I believe in.  A passion for business serving as a “force for good” has led me to advocate for The David Lynch Foundation, Virgin Unite, Grameen Bank, Ashoka, and Human Rights Watch. 

Passions include traveling the world with my family, skiing, surfing and practicing Brazilian Jiu Jitsu.  

Masters Degree in International Management (MBA).  Bachelor of Arts International Affairs .  

“Stay curious, keep learning, never stop growing and exploring.”

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