claude-devtools is a desktop application that reconstructs exactly what Claude Code did by reading the raw session logs already stored on your machine. It doesn't run or modify Claude Code itself but instead analyzes the session logs located in the ~/.claude/ directory to provide comprehensive visibility into Claude Code's activities.

The tool features context reconstruction with per-turn token attribution across seven categories including CLAUDE.md files, skill activations, @-mentioned files, tool I/O, thinking, team overhead, and user text. It includes a tool call inspector with syntax-highlighted Read calls, inline Edit diffs, Bash output, and full subagent execution trees. The application provides team and subagent trees with isolated execution trees per agent showing their own tool traces, token metrics, duration, and cost.

Notification triggers offer system alerts for .env file access, tool execution errors, and high token usage with customizable regex triggers for sensitive paths. SSH remote sessions capability allows inspecting sessions on any remote machine over SSH by reading ~/.ssh/config with support for agent forwarding and key authentication. A command palette enables cross-session search with context snippets and highlighted keywords.

The multi-pane layout supports opening multiple sessions side-by-side with drag-and-drop tabs between panes and split views for comparing sessions in parallel. The tool visualizes how context fills, compresses during compaction, and refills so users can see exactly what was in the window at any point during Claude Code's execution.

claude-devtools works with every session you've ever run from any tool and requires no API keys or configuration. It runs locally and is available as open source software with desktop applications for macOS, Windows, and Linux platforms.