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title: "Agent runtime - New Runtime"
description: "The runtime layer around agents: sandboxes, tools, hosted execution, permissions, state, and deployment surfaces."
answer: ["The agent runtime is the system that lets models safely use tools, files, browsers, terminals, and external services.","As agents take real actions, runtime concerns become product concerns: isolation, permissions, logging, replay, and rollback.","This is where demos turn into repeatable infrastructure."]
search_intents: ["agent runtime","AI agent infrastructure","sandboxed agent execution"]
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last_updated: "2026-07-22"
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top_sources: ["https://agentos-sdk.dev/","https://claude.com/blog/new-in-claude-managed-agents","https://cline.bot/blog/introducing-cline-sdk-the-upgraded-agent-runtime","https://developers.cloudflare.com/sandbox/tutorials/devin-outposts/","https://docs.inference.net/introduction","https://github.com/anthropics/claude-cookbooks/blob/main/claude_agent_sdk/07_Hosting_the_agent.ipynb","https://github.com/bytedance/deer-flow","https://github.com/cline/cline/tree/main/sdk/apps/examples","https://github.com/langchain-ai/deepagents","https://github.com/NousResearch/hermes-agent","https://github.com/rivet-dev/agentos","https://langchain.com/blog/give-your-ai-agent-its-own-computer"]
---

# Agent runtime - New Runtime

The runtime layer around agents: sandboxes, tools, hosted execution, permissions, state, and deployment surfaces.

## Short Answer

- The agent runtime is the system that lets models safely use tools, files, browsers, terminals, and external services.
- As agents take real actions, runtime concerns become product concerns: isolation, permissions, logging, replay, and rollback.
- This is where demos turn into repeatable infrastructure.

## Patterns

- [Harness architecture outlives model choice](https://newruntime.com/patterns/harness-architecture-outlives-model-choice/): For production agents, the harness is becoming a more durable product boundary than the identity of the model running inside it.

## Field Notes

- [Devin Outposts Splits the Agent Brain from the Execution Plane](https://newruntime.com/posts/devin-outposts-agent-execution-plane/): Devin Outposts moves command execution, repository access, and sandbox lifecycle into customer-controlled infrastructure while the agent loop remains in Cognition's cloud.

## Recent Raw Signals

- 2026-07-11: [Render Packages Deployment Primitives for Agent Workloads](https://newruntime.com/signals/render-packages-deployment-primitives-for-agent-workloads/)
- 2026-06-29: [agentOS packages a lightweight runtime for coding agents](https://newruntime.com/signals/agentos-lightweight-runtime-for-coding-agents/)
- 2026-06-28: [DeerFlow 2.0 Packages an Open Runtime for Autonomous Agents](https://newruntime.com/signals/deerflow-2-0-packages-an-open-runtime-for-autonomous-agents/)
- 2026-06-27: [AI SDK 7 Grows into an Agent Runtime](https://newruntime.com/signals/ai-sdk-7-grows-into-an-agent-runtime/)
- 2026-06-19: [The Computer Becomes a Runtime Assigned to the Agent](https://newruntime.com/signals/the-computer-becomes-a-runtime-assigned-to-the-agent/)
- 2026-06-18: [Tokens Stay the Cost While Runtime Becomes the Product](https://newruntime.com/signals/tokens-stay-the-cost-while-runtime-becomes-the-product/)
- 2026-06-16: [The Agent Becomes a Separate Hosting Layer](https://newruntime.com/signals/the-agent-becomes-a-separate-hosting-layer/)
- 2026-05-14: [Cline SDK Exposes an Open Harness for Coding Agents](https://newruntime.com/signals/cline-sdk-exposes-an-open-harness-for-coding-agents/)
- 2026-05-07: [Claude Managed Agents Add Outcomes and Multi-Agent Orchestration](https://newruntime.com/signals/claude-managed-agents-add-outcomes-and-multi-agent-orchestration/)

## Public Sources

- https://agentos-sdk.dev/
- https://claude.com/blog/new-in-claude-managed-agents
- https://cline.bot/blog/introducing-cline-sdk-the-upgraded-agent-runtime
- https://developers.cloudflare.com/sandbox/tutorials/devin-outposts/
- https://docs.inference.net/introduction
- https://github.com/anthropics/claude-cookbooks/blob/main/claude_agent_sdk/07_Hosting_the_agent.ipynb
- https://github.com/bytedance/deer-flow
- https://github.com/cline/cline/tree/main/sdk/apps/examples
- https://github.com/langchain-ai/deepagents
- https://github.com/NousResearch/hermes-agent
- https://github.com/rivet-dev/agentos
- https://langchain.com/blog/give-your-ai-agent-its-own-computer