claude-devtools

claude-devtools is a debugging tool for Claude Code sessions. It is built for developers who want to see what Claude Code did after the terminal replaced detailed output with opaque summaries, and it reads the session logs already on the user’s machine to restore that visibility. The site describes it as a way to see every file path, tool call, and token from those logs.

Its features center on reconstructing session detail. The tool shows thinking steps, exact tool call I/O for Read, Edit, Bash, and Grep, subagent activity, context-window breakdowns, team coordination, and file paths and content touched during a session. It also includes per-turn token attribution across seven categories, visualizations of how the context window fills and compresses during compaction, selectable text for copying messages and code blocks, a Tool Call Inspector with syntax-highlighted output and inline diffs, project memory browsing with markdown rendering and search, notification triggers for events such as .env access or high token usage, SSH inspection of remote sessions, cross-session command-palette search, and a multi-pane layout for comparing sessions side by side.

The tool is presented as not being a wrapper and as not touching Claude Code itself. It reads ~/.claude/ session logs, works with every session already run, and can inspect sessions on remote machines over SSH by reading ~/.ssh/config and supporting agent forwarding and key authentication. The page says it works on macOS, Linux, and Windows, and offers direct downloads for Apple Silicon and Intel Mac .dmg files, a Windows .exe, a Linux .AppImage, and a Docker self-host option. Installation is shown as a Homebrew cask command on macOS.

claude-devtools is open source under the MIT License. The page also states that it requires no login and no API keys, and that it makes zero outbound calls.