Show HN: Claude-code-replay – get lost project code back from Claude Code logs (github.com)

A new tool named Claude-code-replay has been announced, designed to help developers recover lost project states by replaying session logs from Claude Code in a precise, chronological manner. This tool can reconstruct files and commits that may have been erased due to destructive commands, making it a crucial resource for developers who experience data loss. The replay is executed through a two-layer system: the first layer processes logs in strict chronological order, while the second layer—opt-in—utilizes a classifying model (Claude Sonnet 4.6) to analyze and decide which Bash commands to execute or skip based on context. This functionality is especially significant for the AI/ML community as it integrates advanced classification methods into a practical development tool, enhancing error recovery and source code management with AI techniques. Developers can initiate the replay using Node.js and Claude Code CLI, making it accessible without extensive setup. Key features include event filtering options, a detailed event log with execution summaries, and a classifier that helps navigate and execute bash events accurately. This approach not only streamlines project recovery but also illustrates the application of LLMs (Large Language Models) in real-world software development scenarios.