claude-devtools – Visualize hidden Claude Code session details from your terminal

Summary: claude-devtools reads raw Claude Code session logs stored locally and reconstructs detailed execution traces that the CLI hides. It visualizes file reads, tool calls, edits, token usage, and subagent trees in a structured timeline, providing transparency into every session without modifying Claude Code.

What it does

It parses raw session logs from the user’s machine to display every file path accessed, tool invoked, diff applied, and tokens consumed. The tool presents this data with syntax highlighting, inline diffs, context attribution, compaction visualization, and subagent execution trees.

Who it's for

Developers and users of Claude Code who need detailed insight into their CLI sessions beyond opaque summaries or verbose raw JSON dumps.

Why it matters

It solves the problem of limited visibility in Claude Code’s CLI by revealing the full execution details and context usage without requiring verbose output or GUI wrappers.