Claude Code statusline command — shows git branch, model, context %, message count, and conda env

statusline-command.sh

#!/bin/bash
input="$(cat)"

cwd=$(echo "$input" | grep -o '"cwd":"[^"]*"' | head -1 | cut -d'"' -f4)
model=$(echo "$input" | grep -o '"display_name":"[^"]*"' | head -1 | cut -d'"' -f4)
ctx_pct=$(echo "$input" | grep -o '"used_percentage":[0-9.]*' | head -1 | cut -d: -f2)
transcript_path=$(echo "$input" | grep -o '"transcript_path":"[^"]*"' | head -1 | cut -d'"' -f4)

# Git branch
git_branch=""
if [ -n "$cwd" ] && git -C "$cwd" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
  git_branch=$(git -C "$cwd" symbolic-ref --short HEAD 2>/dev/null || git -C "$cwd" rev-parse --short HEAD 2>/dev/null)
fi

# Context window with color coding
ctx_str=""
if [ -n "$ctx_pct" ]; then
  ctx_int=${ctx_pct%.*}
  if [ "$ctx_int" -ge 80 ]; then
    ctx_str=" \e[31m${ctx_pct}%\e[0m"
  elif [ "$ctx_int" -ge 50 ]; then
    ctx_str=" \e[33m${ctx_pct}%\e[0m"
  else
    ctx_str=" \e[32m${ctx_pct}%\e[0m"
  fi
fi

# Message count from transcript
msg_count=""
if [ -n "$transcript_path" ] && [ -f "$transcript_path" ]; then
  count=$(grep -c '"role":\s*"' "$transcript_path" 2>/dev/null || echo "0")
  msg_count=" \e[37m${count}msg\e[0m"
fi

# Conda env
conda_env=""
if [ -n "$CONDA_DEFAULT_ENV" ]; then
  conda_env="\e[36m${CONDA_DEFAULT_ENV}\e[0m "
fi

echo -e "${conda_env}\e[35m${git_branch}\e[0m \e[38;5;214m${model}\e[0m${ctx_str}${msg_count}"