What is Claude-devtools?

claude-devtools reconstructs Claude session context and provides per-turn token attribution across categories like global/project/directory context, skill activations, @-mentioned files, tool I/O, internal reasoning, team notes, and user text.

It reads local session logs (~/.claude/) to surface exact file paths, tool calls, tokens, and full execution traces for every session and agent.

Tool call inspector shows syntax-highlighted read calls, inline edit diffs, bash outputs, and expanded subagent execution trees.

Team and subagent trees display per-agent traces with token metrics, duration, and recursive execution visualization for developers, auditors, and security or QA teams.

Notification triggers support regex filters, .env access detection, token thresholds, and system alerts for errors or high usage.

SSH support inspects remote sessions via ~/.ssh/config with agent forwarding and key auth, and toggles between local and remote sessions.

Command palette enables cross-session search with highlighted context snippets; multi-pane layout allows side-by-side session comparison and drag-and-drop panes.

Deployments include macOS, Windows, Linux packages, Docker self-hosted browser UI (localhost.3456) with zero outbound network calls; project is open source under the MIT license.

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Claude-devtools's key features

Reconstructs Claude session context and provides per-turn token attribution across categories (global/project/directory context, skill activations, @-mentioned files, tool I/O, internal reasoning, team notes, user text)
Reads local session logs (~/.claude/) to surface exact file paths, tool calls, tokens, and full execution traces for every session and agent
Tool call inspector with syntax-highlighted read calls, inline edit diffs, bash outputs, and expanded subagent execution trees
Team and subagent trees displaying per-agent traces with token metrics, duration, and recursive execution visualization
SSH remote session inspection via ~/.ssh/config with agent forwarding and key authentication, and toggling between local and remote sessions

Claude-devtools use cases

Debug and optimize multi-agent AI workflows with claude-devtools by reconstructing full Claude session context, attributing tokens per turn across global/project/directory scopes, inspecting tool calls and recursive agent traces to find logic errors, bottlenecks, and reduce token costs
Conduct security audits and incident forensics by using claude-devtools' SSH remote inspector, sensitive environment detection, exact execution traces and tool I/O logs to surface leaked secrets, unauthorized access, and produce verifiable audit trails for compliance
Improve team collaboration and incident response by surfacing exact logs, per-agent metrics, alerts and a local browser UI to replay sessions, annotate decisions, trace failures across files/skills, and hand off reproducible debugging artifacts to engineers