---
title: "CHORUS Articles | Len P. van der Hof"
description: "Six-skill coordination protocol for mixed human-and-agent teams: Charter, Handoff, Orchestrate, Review, Update, Sync."
image: "https://lenvanderhof.com/photos/len-portrait-1.jpg"
---

Tag

# CHORUS

Six-skill coordination protocol for mixed human-and-agent teams: Charter, Handoff, Orchestrate, Review, Update, Sync.

AI Systems

## [Agent shadow mode: evaluate proposals before granting action rights](https://lenvanderhof.com/en/blog/agent-shadow-mode/)

Let the agent be wrong on paper first, where a mistake costs a comparison instead of a customer.

Len P. van der Hof4 October 2026

AI Systems

## [An agentic workflow is not an automation](https://lenvanderhof.com/en/blog/agentic-workflow-vs-automation/)

A script repeats a path. An agentic workflow holds a goal, uses tools, and needs a ceiling.

Len P. van der Hof16 August 2026

AI Systems

## [CHORUS and Chorus AIDLC: which one do you mean?](https://lenvanderhof.com/en/blog/chorus-name-collision/)

One is a way of working you write down. The other is software you install.

Len P. van der Hof1 October 2026

AI Systems

## [What an agent may never do](https://lenvanderhof.com/en/blog/override-doctrine/)

HITL is who can fail the output. The doctrine is what must be refused when no one is watching.

Len P. van der Hof23 August 2026

AI Systems

## [Prove you can stop an agent: interrupt the run and revoke access](https://lenvanderhof.com/en/blog/prove-you-can-stop-an-agent/)

An instruction to stop is a request. A stop is a control that someone outside the agent can operate.

Len P. van der Hof30 September 2026

AI Systems

## [ROSTER vs CHORUS: AI agents for one person, or for a team?](https://lenvanderhof.com/en/blog/roster-vs-chorus/)

Count the people who can say no to the work. One name means ROSTER. Several names mean you need CHORUS as well.

Len P. van der Hof26 September 2026

AI Systems

## [The Multi-Agent Organization: Close the Coordination Gap With CHORUS](https://lenvanderhof.com/en/blog/the-multi-agent-organization-introduction/)

Tools store state. Protocols decide. CHORUS is the operating layer between having agents and running them as one team.

Len P. van der Hof15 August 2026

AI Systems

## [Why multi-agent systems fail: the coordination gap](https://lenvanderhof.com/en/blog/why-multi-agent-systems-fail/)

Capability arrived in an afternoon. The protocol never did. That gap is the whole story.

Len P. van der Hof18 August 2026

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