open-harness
Build composable AI agents with tools, sessions, middleware, and subagents.
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- Updated Jul 10, 2026
Build composable AI agents with tools, sessions, middleware, and subagents.
Create general-purpose agents in TypeScript with streamed events, filesystem or shell tools, persistent multi-turn sessions, and middleware for compaction, retry, and turn tracking. The SDK also covers subagents, MCP servers, on-demand skills, virtual filesystems, and React or Vue chat integration on top of Vercel's AI SDK.
Resource types
Use cases
Platforms
Run agent-generated code inside isolated cloud sandboxes.
Build stateful, real-time AI agents on Cloudflare.
Runtime
Protocols & integrations
Capabilities
Public GitHub facts last synced Jul 10, 2026.
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