signalGitHub Trending2026-09-24
agent-substrate/substrate
Agent Substrate is a secure-by-default agent execution runtime that runs millions of sandboxes with 10x higher density than standard container runtimes. It supports sub-500ms resume operations at over 500 suspend/resume activations per second, with native zero-trust kernel and network isolation. It leverages Kubernetes for infrastructure provisioning and supports microVMs and gVisor, enabling high-density multiplexing of stateful actors onto a smaller pool of workers.
- for who
- Developers and infrastructure engineers building or running autonomous agents at scale.
- why now
- Google's new Agent Substrate runtime launches now, enabling high-density sandboxing for scalable autonomous agent deployments.
- what changes
- They can run many more stateful agents on fewer resources with fast suspend/resume and strong isolation, without changing their agent frameworks.
- to do
- Explore the Agent Substrate project and run the demo to see 30x+ oversubscription by multiplexing ~250 actors onto 8 pods.
key points
- 10x higher density than standard container runtimes
- Sub-500ms resume, 500+ activations per second
- Supports microVMs, gVisor, and Kubernetes lifecycle management
#agent runtime#sandbox technology#kubernetes#google open source
score
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