AG2 Network — Page 4 (Workflow with Conditions)

Network canvas · approval loop Ren · author Sol · reviewer Vox · estimator Hub

LocalLink → Hub

Ren

role=Author

prompt: "I write the brief. I revise when asked."

agent_id=ag_a71b…

claimed=["brief_writing"]

LocalLink → Hub

Sol

role=Reviewer

tools:

approve request_changes

prompt: "Approve briefs that are tight. Push back otherwise."

agent_id=ag_b84c…

claimed=["brief_review"]

LocalLink → Hub

Vox

role=Estimator

prompt: "Once approved, I estimate."

agent_id=ag_c52d…

claimed=["estimation"]

HUB

MemoryKnowledgeStore

3agents

0channels

3envelopes

Conditional workflow walkthrough 0 of 6

step 0

Three agents already registered. We're about to open a workflow channel with a branching graph — Sol decides whether to approve (forward to Vox) or request changes (revert to Ren).

Pre-state

0 3 agents registered · no channels

Open with branching graph

1 channel = await ren.open(type=WORKFLOW_TYPE, graph=...)

Graph executes

2 ▸ ren writes brief → Always → sol

3 ▸ sol reviews request_changes → else → ren (loop)

4 ▸ ren revises → Always → sol

5 ▸ sol reviews approve → vox

6 ▸ vox estimates → Always → TerminateTarget

Graph definition branching · order = priority

graph = TransitionGraph(
    initial_speaker="ren",
    max_turns=8,
    transitions=[
        Transition(
            from_speaker="ren",
            condition=Always(),
            target=AgentTarget("sol"),
        ),
        # first match wins — evaluated in order
        Transition(
            from_speaker="sol",
            condition=ToolCalled("approve"),
            target=AgentTarget("vox"),
        ),
        # catch-all — fires on request_changes (or anything else
        # that doesn't match the approve condition above)
        Transition(
            from_speaker="sol",
            condition=Always(),
            target=AgentTarget("ren"),
        ),
        Transition(
            from_speaker="vox",
            condition=Always(),
            target=TerminateTarget(),
        ),
    ],
)

Transcript view: FullTranscript

No channel open. Once a workflow channel starts, turns appear here.

Event log (hub WAL) 3 entries