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Undo Raises $37M to Anchor AI Agents with Crucial Runtime Visibility

AI agents debugging technology runtime context bug fixing venture funding codebase visibility
June 15, 2026
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Infrastructure for AI Agents' Debugging Tax
Media Hype 5/10
Real Impact 7/10

Article Summary

Debugging startup Undo Ltd. announced a $37 million funding round aimed at expanding its specialized technology internationally. Undo's core offering is a program recorder that captures the full execution history of software, distinguishing it from standard debug tools that only show the source code. With the proliferation of AI coding assistants generating complex, opaque code, the ability to track actual runtime behavior has become essential. Undo claims its technology dramatically improves debugging, showing that AI models could find root causes 92% of the time when provided with its runtime recordings, compared to only 38% on their own. The funding, led by Elsewhere Partners, will fuel growth in the US and Europe, positioning Undo as an integral debugging layer for AI-written codebases.

Key Points

  • Undo raised $37M to scale its debugging technology, specifically targeting the unique challenges presented by AI-generated code.
  • The company's unique capability is recording actual software execution runtime history, which standard debugging tools fail to capture.
  • Benchmarks show that providing this runtime context increases AI-assisted bug identification rates significantly, reaching 92% accuracy in testing.

Why It Matters

This funding round underscores a critical, emerging bottleneck in the enterprise adoption of large language models (LLMs) and AI agents: debugging complexity. As AI accelerates code output, the source of bugs increasingly resides in the state and sequence of runtime operations, not just the code structure. Vendors like Undo are positioning themselves to own the 'Observability Layer' for AI-native software. For engineering leaders, this means that AI tooling alone is insufficient; robust, deterministic runtime visibility tools will become mandatory infrastructure, directly affecting dev cycle times and quality assurance spend.

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