Open source, Apache-2.0

Your agents are a business process. Map them, run them, watch them, secure them.

Juggernaut Harness is a skill for Claude, Claude Cowork, Claude Code and OpenAI Codex. Describe the agent system you want, or point it at one you already have. It draws a BPMN map of every agent, scores each agent's health and cost from your run logs, ranks the fixes worth making, and reviews whether your agents are safe, all in one offline viewer. It is not an agent framework. It sits above whatever runs your agents and never sees your data.

4
Surfaces
9
Console tabs
21
Platforms
0
Data sent to us

Built for n8n

Using n8n? Start with what you already have.

Download your workflow and import it, then import n8n's own execution history. You get the BPMN map, agent health and cost, prompt changes that made an agent worse, and ranked fixes, with no changes to your workflows.

What you get

A BPMN process map

Every agent, decision, parallel split, retry loop, timer, error handler and human approval, in a viewer you can search, zoom and share links into. Exports to BPMN 2.0 for bpmn.io and Camunda.

One viewer for everything

A single offline HTML file with nine tabs: the map, the process, health, runs, cost and fixes, security, readiness, every report, and the source blueprint and prompts.

Ranked fixes

Fifteen optimizer rules find prompt regressions, retry loops, timeouts, premium models on simple jobs and reviewers that rewrite instead of patching, each with an estimated saving and a test to run first.

A day-one risk register

Before any run, a readiness score for every agent from the blueprint and a short interview, so you know which agents are shaky before they fail.

A static security review

Each agent scored against the Rule of Two: untrusted input, sensitive data and the ability to act. Seven checks, no attacks, no code execution.

Your data stays yours

No server, no account, no telemetry. The recorder writes metadata only to your own logs, and you bring the logs to the harness. Juggernaut Dev never receives anything.

Take the tour

The console is one HTML file that opens in any browser, offline. Pick a tab to see what it shows, then open the same tab in a live demo built from a 25-agent claims process.

The Map tab of the Juggernaut Harness console

Map: The process, drawn the way BPMN tools draw it.

Lanes, agents with their jobs, decisions, parallel work, retry loops, timers and human approvals. Switch between Designed and As run, color the steps by health, spend or latency, search for a step, and move around a long process with the minimap, the keyboard and full screen. Clicking a step opens it and puts a link to that step in the address bar, so you can send it to a colleague.

Open the Map tab in the live demo

What is BPMN, and why it matters

BPMN (Business Process Model and Notation) is the international standard for drawing a process, published as ISO/IEC 19510. Its shapes are simple and consistent, so a developer, a business owner and an auditor can read the same picture. Here is a small agent process drawn the way the harness draws yours.

A small agent process in BPMN. A claim arrives, an AI agent reads it, another writes a letter and a third reviews it. If the review fails, the work loops back to the writer. If it passes, a person approves it within 24 hours and the letter is sent.
  1. Start event
    What kicks the process off: an email, a form, a schedule.
  2. AI agent task
    One agent with one job. The harness scores each of these.
  3. Decision
    A branch, such as approved or not, covered or not.
  4. Retry loop
    Work sent back to an earlier agent. How often this happens is a key health signal.
  5. Lane
    Who owns the steps: a team, a role, or AI agents versus people.
  6. Human approval
    Where a person must decide before the process continues.
  7. Timer
    What happens when something takes too long, such as a warning after 24 hours.
  8. End event
    How the process finishes.
Everyone reads the same picture

Code shows one developer what happens. A BPMN map shows the whole team, including the people who approve, audit or pay for the work.

It shows what code hides

Where agents hand off, where people approve, where work loops back, where a timeout fires, and where a mistake can reach a customer.

It is a standard

The same map exports as BPMN 2.0 and opens in bpmn.io or Camunda, so it fits the tools process teams already use.

In the harness, the map is live

Steps are colored by health, spend or latency, and As run shows which paths real runs took and how often each loop fired.

Works with what you already use

Bring your own logs. The harness reads a blueprint and a run log and never connects to your systems. Pick your stack to see exactly how it connects.

Import what you already have

No code changes. The harness reads history your platform already keeps.

Frameworks that speak OpenTelemetry

Send their traces to a collector you run, then import the file.

Add the recorder

One file with no dependencies, called from the place every model call passes through.

20 platform guides, each also available as its own page.

Open a live demo

Each demo is the real console, a single offline HTML file built from sample data. It opens in a new tab.

Claims settlement

A 25-agent claims process with 10 human approvals. The flagship example: the BPMN map, health, cost, ranked fixes, the security review and every report.

Open the demo →

n8n support triage

Built entirely from an n8n workflow export and its execution history, with no hand-written blueprint. It finds a drafter that got worse after its system message was edited.

Open the demo →

All five pipelines

One console across claims, support triage, research, marketing content and code review, to see how the viewer handles several pipelines at once.

Open the demo →

Install

Claude.ai and Cowork

Download the skill file from the latest release and add it in your Skills settings. Then ask in plain language.

Latest release

Claude Code

Run these two commands in Claude Code.

/plugin marketplace add ORG/juggernaut-harness
/plugin install juggernaut-harness@juggernaut

OpenAI Codex

Copy the skill folder into .agents/skills/ in your repository, then ask Codex in plain language.

Where it is headed

Available now

The free skill

Design, audit, health, optimize, the risk register, the security preview, the nine-tab viewer, and importers for n8n, OpenTelemetry and Langfuse. Bring your own logs.

Coming soon

Juggernaut Enterprise

A delivery kit deployed in your own cloud that copies logs from CloudWatch, Azure Monitor, Datadog or Splunk on a schedule and hosts the console behind your own sign-in. Your data never leaves your account.

In the future

Juggernaut Cloud

Hosted dashboards, alerts and history, plus the full visualization and security experience in one place. Opt-in, metadata only.

Open source under Apache-2.0. Works in Claude.ai, Claude Cowork, Claude Code and OpenAI Codex.