Context Burn Bar

bash

A minimal 5-slot block bar showing context-window usage with a green/yellow/red status dot. Source: github.com/gwiener/claude-burn-bars

Preview

Clean repo

5h ▓░░░░ 🟢

New session

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Dirty branch

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Near-full

5h ▓▓▓▓▓ 🔴

1M context

5h ▓▓▓░░ 🟡

Post-compact

5h ░░░░░ 🟢

Worktree

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Non-git

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Source

#!/bin/bash
# Claude Code context-window status bar.
# Reads the Claude Code status line JSON from STDIN and renders
# a compact 5-slot bar for the context window (5h) usage.

set -euo pipefail

input=$(cat)

PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)

# Build a 5-slot progress bar: each slot = 20%.
filled=$(( (PCT + 10) / 20 ))
[ "$filled" -gt 5 ] && filled=5
bar=""
for i in 1 2 3 4 5; do
  if [ "$i" -le "$filled" ]; then
    bar="${bar}▓"
  else
    bar="${bar}░"
  fi
done

# Icon: green <50%, yellow 50-90%, red 90%+
if [ "$PCT" -ge 90 ]; then
  icon="🔴"
elif [ "$PCT" -ge 50 ]; then
  icon="🟡"
else
  icon="🟢"
fi

printf "5h %s %s\n" "$bar" "$icon"