The C# Agent SDK is a full local agent runtime for Phaseo Gateway, including retries, concurrent tasks, cancellation and timeouts, human review, resumable state, lifecycle events, and Devtools capture.
Use it when you want:
- a lightweight bounded tool loop
- gateway-backed
responses requests
- app-owned control over persistence and orchestration
What it ships
AgentSdk.CreateAgent(...)AgentSdk.DefineTool(...)AgentSdk.CreateGatewayAgentClient(...)- a bounded tool loop over the Phaseo
responses API
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Last modified on July 26, 2026
