Runtime model
Terminal Pro generates a local Node script. It reads fields such as model, context_window, effort, rate_limits, cost, workspace, and worktree directly from the JSON payload Claude Code provides.
Guide
How Claude Code statusLine works
Claude Code runs a local command, sends session JSON on stdin, and displays the first line printed to stdout.
Responsive output
Claude Code exposes terminal width through COLUMNS. The runtime uses it to hide bars, compact labels, and drop optional device metrics before the line wraps.
Safe install
The generated statusLine command runs a local file under ~/.claude/terminal-pro. There is no npm package download when a Claude Code session starts.
# go deeper
all claude-code-statusline guides