Technical illustration of planner, executor, and reviewer components connected by explicit handoffs and an approval gate before a final file write

Multi-Agent Systems Without the Theater

The live demo repo for this series is 67ailab/harness-engineering, and for this post I did change the repo before publishing. The new capability shipped in commit dadf203, which adds a small but real multi-agent mode to the demo: the harness can now run with explicit planner, executor, and reviewer roles, persist role activity, record handoffs, and expose those artifacts through the CLI and saved run files. The core changes are in: ...

May 9, 2026 · 67 AI Lab
Abstract visualization of connected AI agents in a network

Multi-Agent Frameworks: Who's Winning in 2026

The Agentic AI space is maturing fast. This week brought clear winners in the framework wars, a convergence among coding agents, and a decisive shift toward enterprise security. Here’s what you need to know. The Multi-Agent Framework Landscape: Winners Emerge LangGraph: The Production Choice If you’re building agents that need to run reliably in production, LangGraph has become the default choice. Companies like Uber, LinkedIn, and Klarna have had LangGraph agents running in production for over a year. ...

March 17, 2026 · 67 AI Lab