Headlong - A micro harness for persistent agents that think continuously on their own

Headlong, an open-source AI agent harness developed by the Laude team, has been released. Unlike traditional reactive agents, this tool implements 'Persistent Agency,' where the agent continues thinking on its own through an inner monologue even without external requests.

The core functionality is written in under 10K lines of Bash code, making it lightweight, and it handles conversations with multiple users in parallel through a single thought stream. When team members interact with the agent via Slack or Telegram, the agent accepts all messages as a single observation and determines the timing and priority of responses on its own.

• Autonomous project execution: The agent sets topics it finds interesting, progresses on projects, and notifies team members of progress when necessary.
• Single timeline: There are no per-user sessions; all interactions are integrated into a single thought flow and connected with other conversation contexts.
• Installation and precautions: It can be installed with a single curl command. Since it can execute shell commands, it should be used in a sandboxed environment. Additionally, as it thinks continuously for 24 hours, the use of API keys with cost limits is recommended.