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Microsoft Agent Framework Workflows – Kernkonzepte – Edges

Dieses Dokument bietet einen ausführlichen Einblick in die Edges-Komponente des Microsoft Agent Framework-Workflowsystems.

Überblick

Edges definieren, wie Nachrichten zwischen Executoren mit optionalen Bedingungen ablaufen. Sie stellen die Verbindungen im Workflowdiagramm dar und bestimmen die Datenflusspfade.

Typen von Kanten

Das Framework unterstützt mehrere Edgemuster:

  1. Direct Edges: Einfache 1:1-Verbindungen zwischen Executoren
  2. Bedingte Kanten: Kanten mit Bedingungen, die bestimmen, wann Nachrichten fließen sollen
  3. Verteilen von Kanten: Ein Executor, der Nachrichten an mehrere Ziele sendet
  4. Fan-In-Edges: Mehrere Executoren, die Nachrichten an ein einzelnes Ziel senden

Direkte Kanten

Die einfachste Form der Verbindung zwischen zwei Ausführenden:

using Microsoft.Agents.AI.Workflows;

WorkflowBuilder builder = new(sourceExecutor);
builder.AddEdge(sourceExecutor, targetExecutor);

from agent_framework import WorkflowBuilder

builder = WorkflowBuilder()
builder.add_edge(source_executor, target_executor)
builder.set_start_executor(source_executor)
workflow = builder.build()

Bedingte Kanten

Edges, die nur aktiviert werden, wenn bestimmte Bedingungen erfüllt sind:

// Route based on message content
builder.AddEdge(
    source: spamDetector,
    target: emailProcessor,
    condition: result => result is SpamResult spam && !spam.IsSpam
);

builder.AddEdge(
    source: spamDetector,
    target: spamHandler,
    condition: result => result is SpamResult spam && spam.IsSpam
);

from agent_framework import WorkflowBuilder

builder = WorkflowBuilder()
builder.add_edge(spam_detector, email_processor, condition=lambda result: isinstance(result, SpamResult) and not result.is_spam)
builder.add_edge(spam_detector, spam_handler, condition=lambda result: isinstance(result, SpamResult) and result.is_spam)
builder.set_start_executor(spam_detector)
workflow = builder.build()

Switch-Case-Kanten

Weiterleiten von Nachrichten an verschiedene Executoren basierend auf Bedingungen:

builder.AddSwitch(routerExecutor, switchBuilder =>
    switchBuilder
        .AddCase(
            message => message.Priority < Priority.Normal,
            executorA
        )
        .AddCase(
            message => message.Priority < Priority.High,
            executorB
        )
        .SetDefault(executorC)
);

from agent_framework import (
    Case,
    Default,
    WorkflowBuilder,
)

builder = WorkflowBuilder()
builder.set_start_executor(router_executor)
builder.add_switch_case_edge_group(
    router_executor,
    [
        Case(
            condition=lambda message: message.priority < Priority.NORMAL,
            target=executor_a,
        ),
        Case(
            condition=lambda message: message.priority < Priority.HIGH,
            target=executor_b,
        ),
        Default(target=executor_c)
    ],
)
workflow = builder.build()

Ablüssungsränder

Verteilen von Nachrichten von einem Executor an mehrere Ziele:

// Send to all targets
builder.AddFanOutEdge(splitterExecutor, targets: [worker1, worker2, worker3]);

// Send to specific targets based on target selector function
builder.AddFanOutEdge(
    source: routerExecutor,
    targetSelector: (message, targetCount) => message.Priority switch
    {
        Priority.High => [0], // Route to first worker only
        Priority.Normal => [1, 2], // Route to workers 2 and 3
        _ => Enumerable.Range(0, targetCount) // Route to all workers
    },
    targets: [highPriorityWorker, normalWorker1, normalWorker2]
);

from agent_framework import WorkflowBuilder

builder = WorkflowBuilder()
builder.set_start_executor(splitter_executor)
builder.add_fan_out_edges(splitter_executor, [worker1, worker2, worker3])
workflow = builder.build()

# Send to specific targets based on partitioner function
builder = WorkflowBuilder()
builder.set_start_executor(splitter_executor)
builder.add_fan_out_edges(
    splitter_executor,
    [worker1, worker2, worker3],
    selection_func=lambda message, target_ids: (
        [0] if message.priority == Priority.HIGH else
        [1, 2] if message.priority == Priority.NORMAL else
        list(range(target_count))
    )
)
workflow = builder.build()

Lüfter-In-Kanten

Sammeln von Nachrichten aus mehreren Quellen in einem einzigen Ziel:

// Aggregate results from multiple workers
builder.AddFanInEdge(aggregatorExecutor, sources: [worker1, worker2, worker3]);

builder.add_fan_in_edge([worker1, worker2, worker3], aggregator_executor)

Nächster Schritt

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