
Hud quietly raises $21 million for sensor built for the AI coding era
The Israeli startup founded by Roee Adler, May Walter, and Lemonade CEO Shai Wininger unveils real-time production visibility for both engineers and AI agents.
Hud, a startup founded by serial entrepreneurs Roee Adler, May Walter, and Shai Wininger, publicly emerged with what it describes as the first platform to give real-time, function-level visibility into how software behaves in production, designed not only for engineers but also for AI coding agents. Alongside the launch, the company revealed that it has quietly raised $21 million in early-stage funding.
Adler, the company’s CEO and a former senior executive at WeWork, built Hud with Walter, formerly CTO at Santa, Bond, and Shookit, and Wininger, the CEO and co-founder of Lemonade, who serves as a non-executive founder.
At the core of Hud’s product is the Runtime Code Sensor, a lightweight component that installs in under a minute and requires no configuration. The sensor records live function-level behavior, performance characteristics, error conditions, execution flows, and dependency interactions, and correlates system-level issues with the underlying root causes in real time. The company says the technology runs with negligible overhead and is already deployed across “millions of services” in large-scale production environments.
Crucially, the data is structured not just for humans but for AI coding agents, allowing tools like Cursor, Copilot, Claude, and command-line agents to understand how real systems behave. That shift, Hud argues, allows models to avoid guesswork and generate code grounded in the actual dynamics of production environments.
“The feedback loop between development and production has always been the hardest part of engineering,” Adler said. “In the era of AI-accelerated development, not knowing how code behaves in production becomes an even bigger part of that challenge.”














