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Morning Edition · Friday, October 2, 2026Published at 2:31 AM EDT · New York
The Agent Harness Is Becoming Infrastructure, With DeepSeek and Earendil Both Shipping Open Runtimes
DeepSeek's MIT-licensed harness treats models, tools and sandboxes as swappable plugins, while Earendil's Pi reached a stable 1.0 with native Model Context Protocol support and a durable runtime for long-lived agents.
Two new releases are shifting the agent runtime away from being something only model vendors supply. DeepSeek Harness is an MIT-licensed execution runtime built on the Cordis meta-framework around a single principle, that everything is a pl…
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