// AI RELIABILITY · LANGGRAPH REFERENCE

Three Orchestration Patterns, Actually Running

Real, compiled, tested LangGraph graphs for three of the five patterns in Agent Orchestration Patterns — including a genuine pause-and-resume approval gate, not a polling loop pretending to be one. Free to clone and run.

// patterns, running
01supervisor/workerreal routing
04human-in-the-loopreal interrupt()
05det.-first escalationQuorel's algorithm
tests19 passing

Same negation-aware escalation ladder as Quorel and RAG Reference Pipeline, the third implementation of the same regression-tested logic. Zero API key required to run the tests.
// why a diagram wasn't enough

Some parts of a coordination pattern don't survive being drawn.

A diagram can show a supervisor routing to a worker. It can't show what actually happens to a graph's execution state while it's paused waiting on a human. This pack exists for the parts that only show up when the code runs.

01
Supervisor / Worker

Real conditional routing via a shared decision interface — not a diagram's arrows, an actual add_conditional_edges call deciding where execution goes next.

04
Human-in-the-Loop

Genuine pause-and-resume via LangGraph's interrupt() and Command(resume=...) — execution actually suspends mid-graph and picks back up exactly where it stopped.

05
Deterministic-First Escalation

The same negation-aware algorithm as Quorel, this time as a real conditional edge between the deterministic check and the judge node.

19
tests, including a real pause/resume verification, not just interface checks
2
real bugs found and fixed while building this — see the README
0
API keys required to run the test suite offline
// pricing

Start free. Pay when it's carrying real traffic.

Same model as Quorel and RAG Reference Pipeline. The free tier is the actual patterns, not a crippled trial. Clone it, run it against your own use case, decide if it fits before you owe anything.

FREE — EVALUATION LICENSE
Clone & Run
$0

Full source for all three patterns, the shared AgentBrain stub, and 19 tests — everything you need to see how these actually run before you commit to anything.

  • Supervisor/Worker with real conditional routing
  • Human-in-the-Loop with real interrupt/resume
  • Deterministic-First Escalation, Quorel's algorithm
  • 19 passing tests, zero API key required
  • Not licensed for production traffic
Clone on GitHub
COMMERCIAL LICENSE
Production
$99 one-time

Everything you need to put these patterns in front of real traffic, plus guidance for wiring in a real model and a persistent checkpointer.

  • Everything in Clone & Run
  • License to run in production
  • Walkthrough: wiring a real AgentBrain implementation
  • Walkthrough: persistent checkpointer for pattern 4
  • Email support for integration questions
Get the license
DONE WITH YOU
Built for Your Stack
From $1,500

The gaps that are genuinely specific to your environment, closed by hand instead of self-serve.

  • Real model wired to your AgentBrain implementation
  • Postgres-backed checkpointer for pattern 4
  • Patterns 2 or 3 built for your specific workflow
  • Combining patterns into one nested graph for your system
  • Architecture review of your broader agentic system
Start a conversation

clone & run proves the patterns work for your use case → production gets you shipped fast with real infrastructure → built for your stack closes what's genuinely yours to solve, not generic to productize.

// the actual question

If your multi-agent system is failing at a seam nobody explicitly designed —

the pattern probably exists already. The question is whether it was chosen on purpose, or assembled by accident.