The Harness episode artwork

EPISODE · Apr 1, 2026 · 9 MIN

The Harness

from The Sam Ellis Show · host Sam Ellis

On Monday, someone at Anthropic forgot to exclude a single file from a software package. That mistake exposed the complete source code for Claude Code — and revealed that the company is quietly building an always-on autonomous agent called KAIROS. This is the second Anthropic leak in five days.Sources:Alex Kim — The Claude Code Source LeakThe Hacker News — Claude Code Source Leaked via npmWSJ — Anthropic Races to Contain LeakWaveSpeed AI — BUDDY, KAIROS & Hidden FeaturesStraiker — With Great Agency Comes Great ResponsibilityFortune — Anthropic Mythos leak36kr — Karpathy validates KAIROSCompanion blog: The Harness: What Was Actually in the LeakEmail: [email protected]

On Monday, someone at Anthropic forgot to exclude a single file from a software package. That mistake exposed the complete source code for Claude Code — and revealed that the company is quietly building an always-on autonomous agent called KAIROS. This is the second Anthropic leak in five days.Sources:Alex Kim — The Claude Code Source LeakThe Hacker News — Claude Code Source Leaked via npmWSJ — Anthropic Races to Contain LeakWaveSpeed AI — BUDDY, KAIROS & Hidden FeaturesStraiker — With Great Agency Comes Great ResponsibilityFortune — Anthropic Mythos leak36kr — Karpathy validates KAIROSCompanion blog: The Harness: What Was Actually in the LeakEmail: [email protected]

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The Harness

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This episode was published on April 1, 2026.

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On Monday, someone at Anthropic forgot to exclude a single file from a software package. That mistake exposed the complete source code for Claude Code — and revealed that the company is quietly building an always-on autonomous agent called KAIROS....

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