Claude Code Compaction Viewer (github.com)

A new tool called the Claude Code Compaction Viewer has been released, designed to help users inspect the conversation history of Claude Code sessions and understand the compaction events that occur when the context window becomes full. Instead of losing data, Claude Code inserts markers to summarize prior interactions, preserving them in JSONL files for future reference. This viewer provides insights into where these compaction boundaries were placed, the details of the summaries generated, token counts before compaction, and whether the compaction was manually triggered or automatic. This development is significant for the AI/ML community as it enhances transparency and usability in managing extensive conversations with AI models, particularly for developers and researchers working with Claude Code. By allowing users to track conversation contexts and compaction events, the tool aims to improve the comprehension of how AI processes and summarizes information during extended dialogues. With straightforward installation options and a user-friendly terminal interface, the viewer presents relevant details, including all compactions and messages, making it easier for practitioners to optimize their interactions with Claude Code.