simple-status-line.md

#!/bin/bash

Claude Code statusline with two-line design and semantic color theory

Line 1: Repo/code context (cool blues/cyans)

Line 2: Session/context info (complementary warm tones)

input=$(cat)

Extract data from JSON

dir=$(echo "$input" | jq -r '.workspace.current_dir') dir_name=$(basename "$dir") model=$(echo "$input" | jq -r '.model.display_name // .model.id') duration_ms=$(echo "$input" | jq -r '.cost.total_duration_ms // 0') total_input=$(echo "$input" | jq -r '.context_window.total_input_tokens // 0') total_output=$(echo "$input" | jq -r '.context_window.total_output_tokens // 0')

Git info

if cd "$dir" 2>/dev/null; then branch=$(git -c core.useBuiltinFSMonitor=false branch --show-current 2>/dev/null) diff_stats=$(git -c core.useBuiltinFSMonitor=false diff --shortstat 2>/dev/null)

if [ -n "$diff_stats" ]; then
  lines_added=$(echo "$diff_stats" | sed -n 's/.* \([0-9]*\) insertion.*/\1/p')
  lines_removed=$(echo "$diff_stats" | sed -n 's/.* \([0-9]*\) deletion.*/\1/p')
  [ -z "$lines_added" ] && lines_added=0
  [ -z "$lines_removed" ] && lines_removed=0
else
  lines_added=0
  lines_removed=0
fi

else branch='' lines_added=0 lines_removed=0 fi

Context window calculation

usage=$(echo "$input" | jq '.context_window.current_usage') if [ "$usage" != "null" ]; then current=$(echo "$usage" | jq '.input_tokens + .cache_creation_input_tokens + .cache_read_input_tokens') size=$(echo "$input" | jq '.context_window.context_window_size') remaining=$((100 - (current * 100 / size)))

if [ "$remaining" -gt 50 ]; then
  ctx_color='\033[92m'  # Green
elif [ "$remaining" -gt 20 ]; then
  ctx_color='\033[93m'  # Yellow
else
  ctx_color='\033[91m'  # Red
fi
ctx="${remaining}%"

else ctx='' ctx_color='' fi

Format session time as human-readable

if [ "$duration_ms" != "0" ] && [ "$duration_ms" != "null" ]; then total_sec=$((duration_ms / 1000)) hours=$((total_sec / 3600)) minutes=$(((total_sec % 3600) / 60)) seconds=$((total_sec % 60))

if [ "$hours" -gt 0 ]; then
  session_time="${hours}h ${minutes}m"
elif [ "$minutes" -gt 0 ]; then
  session_time="${minutes}m ${seconds}s"
else
  session_time="${seconds}s"
fi

else session_time='' fi

Format tokens (k for thousands)

format_tokens() { local tokens=$1 if [ "$tokens" -ge 1000 ]; then awk -v t="$tokens" 'BEGIN {printf "%.1fk", t/1000}' else echo "$tokens" fi }

input_fmt=$(format_tokens "$total_input") output_fmt=$(format_tokens "$total_output")

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LINE 1: Repo/Code (cool blues)

============================================================

line1=$(printf '\033[94m%s\033[0m' "$dir_name")

if [ -n "$branch" ]; then line1="$line1 $(printf '\033[2m│\033[0m \033[96m%s\033[0m' "$branch")" fi

if [ "$lines_added" != "0" ] || [ "$lines_removed" != "0" ]; then line1="$line1 $(printf '\033[2m│\033[0m \033[92m+%s\033[0m \033[91m-%s\033[0m' "$lines_added" "$lines_removed")" fi

============================================================

LINE 2: Context/Session (warm complementary)

============================================================

line2=$(printf '\033[37m%s\033[0m' "$model")

if [ -n "$session_time" ]; then line2="$line2 $(printf '\033[2m│\033[0m \033[33m%s\033[0m' "$session_time")" fi

if [ -n "$ctx" ]; then line2="$line2 $(printf '\033[2m│\033[0m %b%s\033[0m' "$ctx_color" "$ctx")" fi

if [ "$total_input" != "0" ] || [ "$total_output" != "0" ]; then # Both dark blue (34) line2="$line2 $(printf '\033[2m│\033[0m \033[34m↓%s in\033[0m \033[2m/\033[0m \033[34m↑%s out\033[0m' "$input_fmt" "$output_fmt")" fi

Output with blank line separator

printf '%b\n\n%b' "$line1" "$line2"

Location: ~/.claude/statusline-command.sh

Settings.json entry: "statusLine": { "type": "command", "command": "/Users/numman/.claude/statusline-command.sh" }

Output: retail-book-platform │ fix/multiline │ +141 -37

Opus 4.5 │ 52m 13s │ 72% │ ↓19.5k in / ↑61.1k out