Claude DevTools

Name: Claude DevTools Review
Item: Claude DevTools
Rating: 4.2
Author: Aaron Matthews

Skill Development Solid

Works inClaude Code

Solid Scanned — metadata only

Finally, observability for Claude Code sessions.

The missing DevTools for Claude Code. Reads session logs and reconstructs a visual timeline of every file read, tool call, diff applied, and token consumed. Local desktop app, read-only.

See a visual timeline of every file change Claude made
Track token usage and cost across your coding sessions
Debug unexpected behavior by reviewing the action history

3,729 starsMIT (commercial OK)FreeQuick setup

Why it matters

Finally, observability for Claude Code sessions. See exactly what Claude did, how many tokens it burned, and which files it touched — without modifying Claude Code itself.

Best for

Developers who want to understand and optimize their Claude Code usage. Useful for debugging unexpected behavior, tracking token costs, and reviewing what Claude changed.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://github.com/matt1398/claude-devtools

By matt1398

How to Get It

Option 1: Claude Desktop App (Code Mode)Click the + button next to the prompt box → Plugins → Add plugin. Search and click Install. Skills work in Claude Code only.

Option 2: Paste into Claude CodeCopy the command below and paste it into your conversation. Claude will install it.

Command

macOS: brew install --cask claude-devtools. Or download the installer for macOS/Linux/Windows from https://github.com/matt1398/claude-devtools/releases/latest (Docker deployment also available).

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

First thing to try

After installing, paste this into Claude:

Help me see a visual timeline of every file change Claude made

CostFree

Trust Signals Auto-scanned

Stars3,729Contributors18Last updated2026-05-13LicenseMIT (OK for commercial use)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-07-19 · scanner v1

Community Pulse Active

Discussed on Hacker News, Reddit

Claude Code's CLI feels like a black box now. I built an open-source tool to see — Reddit · 891 pts
Claude Code’s CLI feels like a black box. I built a local UI to un-dumb it, and — Reddit · 336 pts
PSA for heavy daily use Claude Code users: give yourself a gift and get 'claude- — Reddit · 269 pts

3 mentions across 1 sources

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 3,671 GitHub stars; 18 contributors; last commit 55d ago; license MIT.

Things to check

Standalone desktop app, not a Claude Code plugin - install via Homebrew or a release download. It reads the session transcripts Claude Code already saves under ~/.claude on the same machine; zero configuration, read-only. On first macOS launch, right-click the app and choose Open.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

4/5

Versatility

5/5

Reliability

4/5

Security

4/5

Overall score4.25 / 5.00 SolidEvaluatedJul 2026

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 3,671 GitHub stars; 18 contributors; last commit 55d ago; license MIT.

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