Microsoft open-sources Agensh, a coding-agent harness that scaled to 1,024 agents with no central orchestrator

Open-sourced Oct 24 under MIT, Agensh has each agent claim its own sub-task, share findings and merge into a shared Gitea repo, with Mattermost for messages; on the five hardest ProgramBench tasks, going from 1 to 128 agents lifted the mean test-pass rate from 19.31% to 28.78%. The release ships a single-node Docker Compose setup (eight workers by default) on Copilot ACP sessions, and token costs for big swarms aren't disclosed (paper).