gistfile1.txt

#!/bin/bash
# Claude Code Statusline - Shows cwd, model, context usage, cost, git branch
# Receives JSON via stdin from Claude Code

input=$(cat)

# Extract data using jq
MODEL=$(echo "$input" | jq -r '.model.display_name // "?"')
CURRENT_DIR=$(echo "$input" | jq -r '.workspace.current_dir // ""')
PROJECT_DIR=$(echo "$input" | jq -r '.workspace.project_dir // ""')
COST=$(echo "$input" | jq -r '.cost.total_cost_usd // 0')

# Context window data
CONTEXT_MAX=$(echo "$input" | jq -r '.context_window.context_window_size // 0')
INPUT_TOKENS=$(echo "$input" | jq -r '.context_window.current_usage.input_tokens // 0')
OUTPUT_TOKENS=$(echo "$input" | jq -r '.context_window.current_usage.output_tokens // 0')
CACHE_READ=$(echo "$input" | jq -r '.context_window.current_usage.cache_read_input_tokens // 0')
CACHE_CREATION=$(echo "$input" | jq -r '.context_window.current_usage.cache_creation_input_tokens // 0')
USED_PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0')

# Calculate total content tokens (inspired by your snippet)
CONTENT_TOKENS=$((CACHE_READ + INPUT_TOKENS + CACHE_CREATION + OUTPUT_TOKENS))
CONTENT_K=$((CONTENT_TOKENS / 1000))
MAX_K=$((CONTEXT_MAX / 1000))

# Format cost (strip trailing zeros)
if command -v bc &>/dev/null && [ "$COST" != "0" ] && [ "$COST" != "null" ]; then
    COST_FMT=$(printf "%.2f" "$COST" 2>/dev/null || echo "$COST")
else
    COST_FMT="0.00"
fi

# Shorten directory - show relative to project or just basename
if [ -n "$PROJECT_DIR" ] && [ "$CURRENT_DIR" != "$PROJECT_DIR" ]; then
    # Show relative path from project
    DIR_DISPLAY="${CURRENT_DIR#"$PROJECT_DIR"/}"
else
    # Just show basename
    DIR_DISPLAY="${CURRENT_DIR##*/}"
fi

# Git branch (cached to avoid slowdown)
GIT_BRANCH=""
if [ -n "$CURRENT_DIR" ] && [ -d "$CURRENT_DIR/.git" ] || git -C "$CURRENT_DIR" rev-parse --git-dir &>/dev/null 2>&1; then
    BRANCH=$(git -C "$CURRENT_DIR" branch --show-current 2>/dev/null)
    [ -n "$BRANCH" ] && GIT_BRANCH=" $BRANCH"
fi

# Color codes for visual indicators
RESET="\033[0m"
BOLD="\033[1m"
DIM="\033[2m"
GREEN="\033[32m"
YELLOW="\033[33m"
RED="\033[31m"
CYAN="\033[36m"
MAGENTA="\033[35m"

# Context color based on usage
if [ "$USED_PCT" -lt 50 ]; then
    CTX_COLOR="$GREEN"
elif [ "$USED_PCT" -lt 75 ]; then
    CTX_COLOR="$YELLOW"
else
    CTX_COLOR="$RED"
fi

# Build the statusline
# Format: [Model] dir (branch) | ctx: 45% 123k/200k | $0.42
printf "%b%b%s%b " "$BOLD" "$CYAN" "$MODEL" "$RESET"
printf "%b%s%b" "$MAGENTA" "$DIR_DISPLAY" "$RESET"
[ -n "$GIT_BRANCH" ] && printf "%b%b%s%b" "$DIM" "$GREEN" "$GIT_BRANCH" "$RESET"
printf " %b|%b " "$DIM" "$RESET"
printf "%b%d%%%b %b%dk/%dk%b" "$CTX_COLOR" "$USED_PCT" "$RESET" "$DIM" "$CONTENT_K" "$MAX_K" "$RESET"
printf " %b|%b " "$DIM" "$RESET"
printf "%b\$%b%s" "$DIM" "$RESET" "$COST_FMT"
echo