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LangChain x hackers&wizards Hackathon: Building with Agent Harnesses (Hamburg)
When
Friday, 04 December 2026
17:00–21:00
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This hackathon is about building with agent harnesses, hands-on, alongside the people building the tools. We're teaming up with hackers&wizards to host an evening of talks and hacking in Hamburg. You'll form small groups, build a deep agent from scratch, and demo it to a panel of judges by the end of the night. What you'll build The theme is agent harnesses — the scaffolding that turns a model into a system that can plan, use tools, and recover from its own mistakes. Steffen Hausmann will kick things off with two short talks: one on deep agents, and one on managed deep agents. Then you'll put it into practice. A few days before the event, we'll send out a prompt so you can come with an idea already in mind. Use the time before the hackathon to think through your approach — you'll want it once the clock starts. What to bring Your laptop and a group to hack with (we'll help you form one if you don't have one) Your own API keys for any models or tools you plan to use Questions for Steffen, and the hackers&wizards team — they'll be around all night We'll provide LangSmith credits to every attendee for the event, so you can trace and debug your agent as you build. 🏆 Prizes 1st place: $3,000 in LangSmith credits 2nd place: $2,000 in LangSmith credits 3rd place: $1,000 in LangSmith credits 🧑⚖️Judges Steffen Hausmann, Deployed Engineer at LangChain The Founder& Co-CEO at hackers&wizards ⏰ Agenda 5:00 – 5:15 pm Doors open, food, and networking 5:15 – 5:30 pm Welcome and theme intro 5:30 – 5:40 pm Talk: Deep agents (Steffen Hausmann) 5:40 – 5:50 pm Talk: Managed deep agents (Steffen Hausmann) 5:50 – 8:30 pm Hacking (judges circulate and review in the final 30 minutes) 8:30 pm Demos, prizes, and closing 9:00 PM Event Ends Plentiful LangChain stickers and limited swag for everyone who shows up. 📍Location: Neustadt neighborhood. Address will be sent to approved participants. About LangChain: LangChain enables every company to own their intelligence. LangChain's open, model-agnostic harnesses give teams choice and control over how they build their agent architecture. LangSmith brings testing, deployment, and monitoring together so teams can continuously improve their agents, compound intelligence, and govern them at scale. More than 7,000 customers, including Nvidia, Bridgewater, LinkedIn, Workday, Harvey, and Rippling trust LangSmith to improve their agents across the Agent Development Lifecycle. Learn more: www.langchain.com About hackers&wizards: hackers&wizards is a Hamburg team of forward deployed agentic engineers. We work inside engineering teams and their codebases so the speed developers gain with agents reaches their customers. Learn more: https://www.hackersandwizards.dev About AI Nights: AI Nights is a european community afterwork event series on practical AI with short talks, live demos and plenty of time to connect. It started in Nuremberg and now also runs in Munich and Hamburg, with the next Hamburg event on January 14, 2027. More european cities will follow! More at https://ainights.ai About AXDN: AXDN//27 is the AI Conference: a full day on AI in business on April 22, 2027 at KORN'S in Nuremberg, from the AI Nights family and limited to 250 tickets. More at https://axdn.io
- Where
- Hamburg
- Who's behind it
- Amada Echeverria
- Who's going
- ~250 expected
- Registration
- 🌍 Open to all
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