Agentic

L1 Landscape

L1: the whole estate. Which agents exist and who talks to whom.

Format.puml
Length35 lines
LibraryAgentic notation

The source

35 lines of PlantUML, and pulls in Agentic notation. Copy it, or open the template inside Gnomon and render it as it is.

@startuml
!include <agentic/core>

title Refund assistant — L1 Landscape

' VIEWPOINT: Landscape — who does this serve, what does it touch, and where
' does control leave our estate? Start here. Almost nobody does, which is why
' boundary questions surface late.
' DONE WHEN: every actor and every channel is on it, and each one sits inside
' a named zone.
'
' Every element is Kind(alias, "Label", "description"). The description is
' optional and carries what the kind's meta line carried in v1.

Actor(customer, "Customer", "verified at the support desk")
Channel(voice, "Inbound call", "voice · 800ms latency budget")

' Any element opens a composite by putting a brace at the call site.
Zone(cc, "Support desk") {
  Agent(assistant, "Refund assistant", "opus-5 · effort high")
}

Zone(estate, "Order estate") {
  Tool(policy, "Payments system", "IssueRefund v1.0.0 · writes to system of record")
}

Exit_Human(human, "Transfer to a human")
Exit_Complete(done, "Complete")

Rel(customer, voice)
Rel(voice, assistant)
Rel_Expr(assistant, policy, "eligible == true")
Rel(policy, done)
Rel_LLM(assistant, human, "out of scope")
@enduml

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Others in Agentic architecture diagrams

Agentic — L2 Topology (router)L2: a router topology, where one agent dispatches to specialists.
Agentic — L2 Topology (swarm)L2: a peer mesh with handoffs and no central coordinator.
Agentic — L2 Capability matrixL2: what each agent may call, read and load. No sequence.
Agentic — L3 FlowL3: one journey end to end, including how it exits.
Agentic — L4 Control planeL4, the hook plane on its own: what runs before and after each turn.
Agentic — Trust boundaryWhere untrusted input crosses into privileged capability.
Agentic — Exit mapEvery way the system can stop. Usually the most revealing one to draw.