Eino Agent

This is the full Eino Agent Development Kit for Go, covering ChatModelAgent with ReAct pattern, middleware stack (filesystem, tool search, reduction, summarization), and TurnLoop for push-based multi-turn execution. You get proper interrupt/resume for human-in-the-loop, output-based retry with custom logic, model failover when your primary LLM chokes, and cancel mechanisms with safe checkpoints. The generic typing over MessageType lets you use classic or AgenticMessage. If you're building production agents in Go and need more than just wrapping an LLM call, this gives you the primitives for tool orchestration, graceful degradation, and event-driven loops without reinventing resilience patterns.

skills.sh installs: 366
GitHub stars: 835
last updated: Aug 21, 2026

View on GitHub

Install

$ npx -y skills add cloudwego/eino-ext --skill eino-agent --agent claude-code

Installs into .claude/skills of the current project.

Files

Eino ADK Overview

Import: github.com/cloudwego/eino/adk

The Agent Development Kit (ADK) provides a framework for building agents in Go. The ADK is generically parameterized by MessageType to support both classic *schema.Message and the new *schema.AgenticMessage. Prefer *schema.AgenticMessage for new usage.

type MessageType interface {
    *schema.Message | *schema.AgenticMessage
}

type TypedAgent[M MessageType] interface {
    Name(ctx context.Context) string
    Description(ctx context.Context) string
    Run(ctx context.Context, input *TypedAgentInput[M], options ...AgentRunOption) *AsyncIterator[*TypedAgentEvent[M]]
}

// Convenience aliases for classic message type
type Agent = TypedAgent[*schema.Message]

Agent Types

Type	Description	Decision
ChatModelAgent	ReAct pattern: LLM reasons, calls tools, loops until done	Dynamic (LLM)
DeepAgent	Pre-built agent with planning, filesystem, sub-agents	Dynamic (LLM)
TurnLoop	Push-based event loop for multi-turn execution with preemption and lifecycle management	Runtime
Custom Agent	Implement the TypedAgent interface directly	Custom