Engineering Blog

Building the
Agent Harness

Deep dives into plugin architecture, multi-agent orchestration, and the infrastructure that makes AI-human collaboration work.

Latest

2026-07-02 15 min read

Chorus v0.13.0: Turn Your Project Into a Mind-Map

A few ideas, each with proposals, documents, and tasks hanging off it, all tangled in dependencies. Can you still say what the project looks like right now?

Engineering

2026-06-27 15 min read

Chorus v0.12.0: Wake a Remote Claude Code, Hit Exactly the Right One

One daemon watches one directory. But your code lives in three repos across two machines. When a task lands, you don't get to say where it runs.

Engineering

2026-06-21 15 min read

Chorus v0.11.0: You assigned the work — now the agent actually picks it up

You give an agent permissions, hand it a task, and it sits in a database row waiting for you to open a terminal and wake it. That's your always-on teammate?

Engineering

2026-06-14 15 min read

Chorus v0.10.0: One idea pulls a whole string behind it

You work on one idea and it spawns three more. The line between them only ever lived in your head.

Engineering

2026-06-08 15 min read

Chorus v0.9.4: OpenClaw shipped an SDK, Codex changed its hooks, and a pile of fixes

OpenClaw 2026.4.27 introduced a Plugin SDK. Codex reworked how hooks load. Both Chorus client plugins were rewritten to keep up — and the main repo got a month's worth of rough edges sanded down along the way.

Engineering

2026-05-25 15 min read

Chorus v0.9.0: Give your ideas a beginning and an end

Pinned down on technical decisions before the idea is even shaped, then disbanded the moment it ships. This release patches both ends.

Engineering

2026-05-17 15 min read

Chorus v0.8.0: Chorus ❤ OpenSpec

Writing specs as local files is great. So how does the collaboration platform keep up? This release wires OpenSpec's local file flow into Chorus's AI-DLC.

Engineering

2026-05-03 15 min read

Writing the Same Plugin Twice: Claude Code vs Codex

Built one plugin for Claude Code, one for Codex CLI. Same logic. Wildly different experience.

Claude CodePlugin

2026-05-02 15 min read

Chorus v0.7.0: Build Your Own Agent Permissions

Creating an agent used to be a three-way choice: PM, Developer, or Admin. Now you pick by resource and action.

Engineering

2026-04-28 15 min read

Chorus v0.6.7: Codex Users, We Got You

The Chorus plugin was Claude-Code-only. Now Codex CLI gets it too, one command away.

Engineering

2026-04-23 15 min read

Chorus v0.6.6: One npx, Zero Setup

No Docker, no database, no config files. Just npx and a browser. Plus: export your docs.

Engineering

2026-04-17 15 min read

Chorus v0.6.2: No Database? No Problem.

Setting up PostgreSQL just to try an agent platform? PGlite embedded mode runs Chorus in a single container. Also: the port changed — read this before upgrading.

Engineering

2026-04-14 15 min read

Paper Review: If the Model Doesn't Have to Carry It, Move It Out

A 54-page survey uses cognitive science to answer a question the industry keeps rediscovering: why do agents get more reliable when you move things out of the model?

Engineering

2026-04-13 15 min read

Chorus v0.6.1: Your Time Costs More Than Tokens. /yolo it!

Still reviewing every Claude Code plan line by line? /yolo lets agents review each other so you don't have to.

Engineering

2026-04-09 15 min read

Chorus v0.6.0: Your Agent Team Just Got a Foreman

v0.6.0 ships independent Review Agents, real-time Presence, and IdeaTracker. When 5 agents work in parallel, humans finally stop flying blind.

Engineering

2026-04-07 15 min read

The Model Got Dumber. Your Workflow Shouldn't.

Anthropic quietly nerfed Claude Code's thinking depth and cut off OpenClaw's subscription access. The real problem isn't what changed — it's that your workflow had zero resilience to it.

Engineering

2025-03-31 15 min read