Context Bar is a beta extension for VS Code that shows Claude Code context window usage directly in the status bar.
It gives you a quick visual readout of how much context has been used, plus token totals, without leaving your editor.
Features
Shows Claude Code context usage in the status bar
Displays a compact bar, percentage, and used tokens
Updates automatically from the latest transcript in ~/.claude/projects
Adds a tooltip with input, output, and total window size
Includes a Context Bar: Configure Claude Code command
How It Works
The extension watches the latest Claude Code transcript in ~/.claude/projects and reads usage data from the newest assistant message that contains token usage information.
When usage data is available, the status bar updates automatically.
Setup
Install the extension.
Start or resume a Claude Code session so transcript files exist under ~/.claude/projects.
Optional: run Context Bar: Configure Claude Code from the Command Palette to write the bundled helper command into ~/.claude/settings.json.
Keep coding. The status bar updates as new usage data appears.
Status Bar Display
Green for lower usage
Yellow as usage grows
Red when the context window is getting tight
Hover the status bar item to see detailed token counts.
Beta Notes
This is a beta release. The formatting, setup flow, and Claude Code integration may change as the extension evolves.