⌘ Tech

Harness Engineering: Building Reliable AI Systems

When: Wednesday, July 1 · 6:00 PM – 9:00 PM
Where: San Francisco
Listed by: Lu.ma — Gen AI SF

AI models are getting smarter. The hard part is everything around them. Agents need context. They need evaluation. They need guardrails, observability, testing, and workflows that help them operate reliably in production. In short, they need a harness. Join Steve Yegge and Dru Knox for a fireside conversation on the emerging discipline of Harness Engineering—the systems and practices that make AI agents effective, trustworthy, and useful in real-world software development. Together, they'll explore how engineering teams can move beyond experimentation and build AI-powered systems that are ready for production, followed by audience Q&A and community networking. Agenda 18:00 Venue opens, drinks & networking 18:30 Fireside Chat: Harness Engineering: Building Reliable AI SystemsGuy Podjarny & Steve Yegge, facilitated by Tessl 19:15 Audience Q&A 19:45 Networking, drinks & conversation 21:00 Event close Speakers Steve Yegge, Advisor & Consultant Steve Yegge is ex-Geoworks, ex-Amazon, ex-Google, ex-Grab, and ex-Sourcegraph, with over 30 years of tech industry experience, 40 years coding total. Dru Knox, Head of Product & Design at Tessl Dru Knox is Head of Product & Design at Tessl, where he leads the development of AI-native tools purpose-built for developers. A seasoned product manager, Dru has spent his career working on deeply technical and developer-facing products at companies like Google and Airtable. Over the past several years, he’s focused on machine learning and generative AI at scale, driving product innovation at Grammarly, his own startup, and the AI-native social network Cantina. Dru is passionate about making LLM-powered products that are fast, useful, and intuitive, especially in the codegen space. He brings a thoughtful, pragmatic approach to building tools that serve real developer needs, grounded in experience across both big tech and startups.Outside of work, Dru’s interests include improv comedy, Dungeons & Dragons, and philosophy. His favorite podcasts are Cortex, The Adventure Zone, and Sharp Tech. Originally from Virginia, he’s currently based in London and still counts winter (and snow) as his favorite season. This event is brought to you as part of the AI Native Dev Community. Consider subscribing to the Mailing List, Podcast, and joining our Discord Community

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TBA

Innhouse with E2B & Inngest

The tradeshow floor will still be there. Come eat first. Whether you're in town for AI Engineer World's Fair or just live in SF and want to hang out, you're invited.

⌘ TechLu.ma — Gen AI SFRSVP · Luma

When: Wednesday, July 1
Where: San Francisco

The tradeshow floor will still be there. Come eat first. Whether you're in town for AI Engineer World's Fair or just live in SF and want to hang out, you're invited. Join E2B and Inngest for lunch on Wednesday, July 1st from 12–2pm, just steps away from Moscone West. Grab-and-go lunch from Señor Sisig, matcha & coffee, swag, and a rooftop DJ. Space is limited, request to join!About Inngest Inngest is the durable execution engine that lives in your codebase. Wrap any function in Steps to instantly add retries and control flow. And because Inngest executes each step, you get deep observability your APM tools can't reproduce. No workers, no queues, no added instrumentation. Trusted by ElevenLabs, 11x, Replit, Cohere, and more.About E2BE2B gives AI agents computers with real-world tools. Fast, secure, and built for scale, it powers the infrastructure behind Manus, Genspark, Lindy, and some of the most widely used consumer and enterprise agents in production.

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IPO: Bending Spoons (Nasdaq: BSP)

Its portfolio includes Eventbrite, Evernote, Vimeo, AOL, WeTransfer and Meetup.

⌘ TechTechMeme EventsDetails · techmeme.com

TBA

IPO: Neutron Holdings (Nasdaq: LIME)

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Keycard Workshop @ AI Engineer World's Fair

111 Minna Gallery and Event Space — Yerba Buena

Your agents are reaching for real tools and real data. The risk isn't the capable agent, it's the standing secret it holds.

⌘ TechLu.ma — Gen AI SFRSVP · Luma

When: Wednesday, July 1
Where: 111 Minna Gallery and Event Space — Yerba Buena

Your agents are reaching for real tools and real data. The risk isn't the capable agent, it's the standing secret it holds. One long-lived API key sitting in an agent's environment is one prompt injection or Shai-Hulud away from being read out. At AI Engineer World's Fair, Keycard is running a hands-on workshop where you build the answer on your own machine. We'll serve lunch and then you'll build a custom support-escalation MCP server in TypeScript (Express, Streamable HTTP), and lock down both the server and everything it touches with Keycard, end to end. You'll leave having built a server with three tools: Read support tickets, where the user's identity is swapped for a read-only credential so no standing key ever sits in your serverEscalate to engineering, where an LLM scrubs the PII before posting a clean issue to Linear using a write-scoped credentialDelete an escalation, which asks for a scope your policy refuses to grant What you'll learn: Why standing secrets are the real risk in agentic systems, and how to build them so your server never holds oneHow to give each tool exactly the access it needs, and nothing moreHow to trace every hop of an agent delegation chain in a complete audit trailHow to set policy that blocks an over-permissioned action Bring a laptop with Node and npm, a GitHub account, and your local coding agent (Claude Code, Cursor, Codex, or Copilot). TypeScript familiarity is strongly preferred. You'll walk out with a governed escalation server you built, and a clear pattern for securing every agent you ship next. Join us if you're building MCP servers or agentic systems and want to learn how to control access to your server and the resources behind it.

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