Claude Code is a coding assistant that runs inside a terminal — it can edit files, run commands, search the web. The terminal itself, though, doesn’t show any of the context you need to use it well: which model is active, what branch the project is on, how many tokens you’ve spent, what the running session has cost so far.

This is a configurable status bar that fills that gap. You compose it from widgets — model name, git branch, token counter, project-level cost tracker, time since last message, anything else you want — and it renders below the terminal as Claude Code runs, updating in real time as the agent works.

Evidence:

• Published to npm with weekly download counts visible on the package page
• Mentioned in Awesome Claude Code
• Cost-tracking math: charges 2× for [1m] extended-context messages, deduplicates by (messageId, requestId) so the displayed cost matches the Anthropic invoice
• Falls back to a TUI when stdin has no piped input; ships a prebuilt dist/ so GitHub installs work without Bun on the machine

The dedup detail is the part most cost-tracking tools get wrong. Claude Code can replay the same logical message under different request IDs during retries; naïve sum-of-events double-counts those. The fix is keying on both IDs and treating anything matching as a single billable event — small change, the difference between a status line you trust and one you stop looking at.