Show HN: Halo – open-source, tamper-evident runtime evidence for AI agents
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brian_kuan
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Hi HN, I'm Brian, I spent the last few years at Vanta (YC W18), helping startups and enterprises become compliant and I recently started exploring what that might look like in a post-agentic world.The problem Halo solves is: when a company buys an AI agent from a vendor and gives it access to their data, they have no way to check what the agent did with that data.
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Vendors may have built observability dashboards and audit logs, but those are editable and partisan.
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SOC 2 and ISO 27001 audit a company's controls, but controls are less predictive when the software is agentic.
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TLDR: give an agent the same prompt 50 times, and you get 50 slightly different actions/answers - so the only thing worth auditing in a post-agentic world is what happened at runtime.Halo is an open-source project that produces agent runtime evidence.
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