Show HN: AgentTM – A time-travel debugger for AI coding agents built in Go (github.com)

AgentTM, a newly launched time-travel debugger designed for AI coding agents, has been developed using Go. This command-line interface (CLI) records noninteractive Codex runs and stores the data in SQLite, enabling users to inspect historical coding sessions, file changes, and project timelines visually through an embedded React/TypeScript UI. The tool passes various validation tests across six operating systems, including end-to-end functionality in Windows, and supports features such as workspace checkpoints and safe restoration of previous coding states. This release is significant for the AI/ML community as it enhances the debugging capabilities of AI coding agents by allowing developers to trace coding histories and revert to previous states easily. Key technical features include the integration of SQLite for storing session data, the ability to create checkpoints without altering the original workspace, and comprehensive session event logging. AgentTM’s design addresses essential concerns such as prompt privacy and the management of sensitive information, making it a valuable asset for developers working with Codex and other AI coding tools. As it stands, future enhancements will add more interactive features and cloud synchronization, promising deeper functionalities for users.