Durable Agentic Harness.
Unstoppable agents.
A harness engine that runs durable AI agents — surviving crashes, restarts, and infrastructure failures.
Durable Execution
Every step persisted. Agents resume from where they left off.
Long-running Agents
Run for hours or days. No timeouts, no limits.
Atomic Durability
Managed event loop composed from atoms. Every operation persisted.
Multimodal Input
Process text and images. Agents see what you see.
MCP Support
Model Context Protocol for secure tool access and integration.
Multi-Provider
OpenAI, Anthropic, and more. Switch models without code changes.
How It Works
1
Create an agent
Define a model and system prompt.
2
Start a run
Send your input message.
3
Agent survives any failure
Crashes, restarts, timeouts - it picks up where it left off.