Claude Reply Tokens

Claude Reply Tokens is a VS Code companion extension that shows the token usage for the latest Claude Code reply in the status bar.

It does not depend on private APIs from the official anthropic.claude-code extension. Instead, it reads Claude Code's local JSONL session logs and computes the latest full assistant reply chain for the current workspace.

Features

• Shows the latest Claude reply token usage in the VS Code status bar
• Aggregates a full reply chain instead of only the last assistant JSONL record
• Matches Claude sessions to the current workspace
• Refreshes automatically when Claude writes new transcript lines
• Opens the matching transcript file from the status bar

How It Works

The extension scans Claude's local projects/**/*.jsonl files, finds the most relevant session for the current workspace, and sums token usage across the latest assistant reply chain by walking parentUuid.

The total includes:

• input_tokens
• output_tokens
• cache_creation_input_tokens
• cache_read_input_tokens

Requirements

• VS Code 1.86.0 or later
• Claude Code installed and actively writing transcript files locally

Settings

This extension contributes the following settings:

• claudeReplyTokens.dataDirectory Override the Claude config directory. Point it at the folder that contains projects/.
• claudeReplyTokens.refreshIntervalSeconds Fallback full-rescan interval in seconds. Minimum: 30.

Commands

• Claude Reply Tokens: Refresh
• Claude Reply Tokens: Open Claude Transcript
• Claude Reply Tokens: Open Claude Reply Tokens Settings

Development

Install dependencies:

npm install

Compile:

npm run compile

Run tests:

npm test

Launch an Extension Development Host:

1. Open this project in VS Code
2. Press F5

Packaging

Create a VSIX package:

npm run package:vsix

This produces a file like:

claude-reply-tokens-0.1.0.vsix

Install locally:

code --install-extension .\claude-reply-tokens-0.1.0.vsix --force

Team Distribution

Recommended workflow:

1. Run npm run package:vsix
2. Upload the generated .vsix to your shared release location
3. Ask teammates to install it with code --install-extension ... --force

Notes

• This extension currently tracks the current workspace only
• It does not hook into the official Claude Code extension internals
• If multiple Claude sessions match the same workspace, it uses the one with the latest assistant activity
• Before publishing to VS Code Marketplace, replace YOUR_PUBLISHER_ID in package.json with your real publisher ID