Directory · Subagents

claude-devtools

Desktop and web app that reads local Claude Code session logs to show tool calls, token usage, subagent trees, and context.

★ 3,974 stars · last updated 2026-09-26 · Free, open source · View on GitHub

Best for

• Debugging what Claude Code actually did when terminal output is summarized
• Inspecting subagent and team execution trees with tokens, duration, and cost
• Understanding context window usage and compaction per turn
• Reviewing sessions on remote machines over SSH

Install

brew install --cask claude-devtools

Our take

An Electron app for macOS, Linux, and Windows, with a Docker/standalone server mode (docker compose up, then http://localhost:3456) that the README says makes no outbound network calls. It is read-only and does not wrap Claude Code, working from existing logs in ~/.claude/. It is an observability tool rather than a subagent definition, but it includes dedicated subagent tree views; it is MIT licensed and actively maintained with about 4k stars.

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