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121 lines
3.2 KiB
Go
121 lines
3.2 KiB
Go
/*
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* Copyright 2025 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"context"
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"log"
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"time"
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"github.com/cloudwego/eino/adk"
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"github.com/cloudwego/eino/components/tool"
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"github.com/cloudwego/eino/compose"
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"github.com/cloudwego/eino-examples/adk/common/model"
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"github.com/cloudwego/eino-examples/adk/common/prints"
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"github.com/cloudwego/eino-examples/adk/common/trace"
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"github.com/cloudwego/eino-examples/adk/intro/agent_with_summarization/summarization"
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"github.com/cloudwego/eino-examples/internal/logs"
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)
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const (
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summaryMaxTokensBefore = 10 * 1024
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summaryMaxTokensRecent = 2 * 1024
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agentMaxIterations = 30
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)
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func main() {
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ctx := context.Background()
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a, err := newAgent(ctx)
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if err != nil {
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logs.Fatalf("create agent failed, err=%v", err)
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}
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traceCloseFn, startSpanFn := trace.AppendCozeLoopCallbackIfConfigured(ctx)
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defer traceCloseFn(ctx)
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runner := adk.NewRunner(ctx, adk.RunnerConfig{
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EnableStreaming: true, // you can disable streaming here
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Agent: a,
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})
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query := `Write a very long report on the history of artificial intelligence.`
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ctx, endSpanFn := startSpanFn(ctx, "Agent", query)
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iter := runner.Query(ctx, query)
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var lastMessage adk.Message
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for {
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event, ok := iter.Next()
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if !ok {
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break
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}
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if event.Err != nil {
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log.Fatal(event.Err)
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}
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prints.Event(event)
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if event.Output != nil {
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if msg, _, getErr := adk.GetMessage(event); getErr == nil {
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lastMessage = msg
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}
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}
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}
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endSpanFn(ctx, lastMessage)
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// wait for all span to be ended
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time.Sleep(10 * time.Second)
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}
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func newAgent(ctx context.Context) (adk.Agent, error) {
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sumMW, err := summarization.New(ctx, &summarization.Config{
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Model: model.NewChatModel(),
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MaxTokensBeforeSummary: summaryMaxTokensBefore,
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MaxTokensForRecentMessages: summaryMaxTokensRecent,
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})
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if err != nil {
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return nil, err
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}
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a, err := adk.NewChatModelAgent(ctx, &adk.ChatModelAgentConfig{
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Name: "main_agent",
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Description: "A long-form report assistant",
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Instruction: `You are a long-form report writer working in ReAct mode.
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Think step by step, call tools to expand content by repeating paragraphs, then synthesize a cohesive response.
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one time call one tool, do not call multiple tools in one turn.
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Each tool call should indicate the call number. After 20 tool calls, produce a final summary.`,
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Model: model.NewChatModel(),
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Middlewares: []adk.AgentMiddleware{sumMW},
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ToolsConfig: adk.ToolsConfig{
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ToolsNodeConfig: compose.ToolsNodeConfig{
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Tools: []tool.BaseTool{
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NewRepeatSectionsTool(),
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},
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},
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},
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MaxIterations: agentMaxIterations,
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})
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if err != nil {
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return nil, err
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}
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return a, nil
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}
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