A deep dive on Cookie security, how to build better agents, check your site's agent readiness and learn how OpenAI built Codex ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­    ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­  

WeAreDevelopers Dev Digest

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Issue 217: 🍪 All about cookies, better agents & how OpenAI built Codex

Your article on the WeAreDevelopers Magazine? - Submit your proposal

08-10/07/26: WeAreDevelopers World Congress Europe

25-26/11/26: WeAreDevelopers Conference India - CFP India

23-25/09/2026: WeAreDevelopers World Congress North America - CFP US

Your article on the WeAreDevelopers Magazine? - Submit your proposal

08-10/07/26: WeAreDevelopers World Congress Europe

25-26/11/26: WeAreDevelopers Conference India - CFP India

23-25/09/2026: WeAreDevelopers World Congress North America - CFP US

Get 15% off your tickets with code "devdigest" for Europe, North America

Hello fellow developer, we are sitting on packed bags as the next weeks will be full of travel and events! First up is Nebuis,build in Berlin, then we cross the pond to attend  AgentCon Silicon Valley where we will do lots of live recordings for Coffee With Developers. Then we'll be at AgentCon Berlin where Chris Heilmann will be speaking and Dan Cranney will be roaming and interviewing. And of course we keep scouring the internets for excellent resources like the ones we have here. Let's get started! 

Mohamad Shiralizadeh Things you don't know about Cookies and how to protect them.

🎶 C is for 🍪 Cookie, that's good enough for me…  Cookies are still one of most used ways of authenticating and tracking on the web and many people have no idea how and why they work. Mohamad Shiralizadeh of ING did tons of research, so we don't have to. So, check out a a deep dive on how cookies work and how to keep them secure.

What's happening in AI

  • Why ChatGPT Cites One Page Over Another (Study of 1.4M Prompts)
  • Prove You Are a Robot: CAPTCHAs for Agents
  • Build Better AI Agents: 5 Developer Tips from the Agent Bake-Off
  • Making your site visible to LLMs: 6 techniques that work, 8 that don't
  • 8 Tips for Writing Agent Skills

Security and Privacy

  • Failed Companies Are Selling Old Slack Chats and Email Archives to Train AI
  • The Blueprint of a North Korean Attack on Open-Source
  • Your Dependencies Are Someone Else's Attack Surface
  • Primer on GitHub Actions Security - Threat Model, Attacks and Defenses
  • How exposed is your code? Find out in minutes—for free
Explore what's happening at Red Hat Summit, Atlanta, GA, May 11-14 2026

Find sessions that inspire. Build connections that last.

At Red Hat® Summit, we don’t just talk about where technology is headed—we help you get there. With hundreds of sessions and hands-on learning opportunities, you can make tangible progress with the tech that powers your day-to-day work.

Ready to sharpen your skills and renew your focus? Explore sessions for developers like you and register now to join us May 11-14 in Atlanta.

Software Development

  • Imperative vs Declarative Programming
  • Things you didn't know about indexes
  • How OpenAI built Codex: inside the agent loop and harness
  • Most Cookie Consent Banners Don’t Check for Compliance
  • The unwritten laws of software engineering

Tips, Tricks and Tools

  • Is Your Site Agent-Ready test your Agent Readiness score
  • Testing OpenGraph on localhost from the CLI before you go public
  • HyperFrames lets AI agents compose videos by writing HTML, CSS & JS.
  • Replace port numbers with stable, named .localhost URLs for local development.
  • Color Thief - Grab colors from any image or video.

Procrastination corner and Wonderful Weird Web

  • Installing every* Firefox extension
  • Windows 95, running in an Electron app.
  • Doom as a text adventure

Career and Culture:

  • The New Designer/Developer Collaboration
  • App Store Reviews are Busted
  • Should Designers "Code"?
  • Silicon Valley has forgotten what normal people want
  • AI Reads My Meetings. I Take More Notes Than Ever.
Are you looking for opportunities or fancy a change?

Companies to check:

  • Product Owner at procilon Group
  • Salesforce Inhouse Consultant at Hubert Burda Media
  • Senior Software Engineer at WALTER GROUP
  • (Senior) Data Engineer at Riverty
  • Backend Developer Java at Sopra Steria Custom Software Solutions
  • Power Plus Communications
  • msg
  • piazza blu²
  • Chief IT
  • Rosenxt Group

More jobs here: Remote positions - Germany - Austria

WeAreDevelopers, Schottenfeldgasse 23, Vienna, Vienna 1070, Austria

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