#!/bin/bash

#

# Claude Code Status Line

# A clean, informative status bar for Claude Code CLI

#

# ─────────────────────────────────────────────────────────────────────────────

# Dependencies

# ─────────────────────────────────────────────────────────────────────────────

#

# Required:

# jq JSON parser for reading Claude's input

# Install: brew install jq (macOS) | apt install jq (Linux)

#

# Optional:

# git For branch/dirty status (skip if not in a repo)

#

# Built-in (no install needed):

# awk, grep, stat, date, basename

#

# ─────────────────────────────────────────────────────────────────────────────

# ─────────────────────────────────────────────────────────────────────────────

# Configuration

# ─────────────────────────────────────────────────────────────────────────────

BAR_WIDTH=10

CONTEXT_WARN_PCT=70

CONTEXT_CRIT_PCT=90

DEFAULT_CTX_LIMIT=200000

CTX_LIMIT_1M=1000000

# Colors (using $'...' for proper escape sequence interpretation)

C_RESET=$'\033[0m'

C_BOLD_GREEN=$'\033[1;32m'

C_CYAN=$'\033[0;36m'

C_BLUE=$'\033[1;34m'

C_RED=$'\033[0;31m'

C_YELLOW=$'\033[0;33m'

C_GREEN=$'\033[0;32m'

C_MAGENTA=$'\033[0;35m'

C_DIM=$'\033[2m'

# ─────────────────────────────────────────────────────────────────────────────

# Input Parsing

# ─────────────────────────────────────────────────────────────────────────────

INPUT=$(cat)

MODEL=$(echo "$INPUT" | jq -r '.model.display_name // "unknown"')

MODEL_ID=$(echo "$INPUT" | jq -r '.model.id // ""')

CWD=$(echo "$INPUT" | jq -r '.workspace.current_dir // "."')

# Detect 1M context models (Anthropic, Vertex, Bedrock all use "1m" in model ID)

if echo "$MODEL_ID" | grep -qi '1m'; then

CTX_LIMIT=$CTX_LIMIT_1M

else

CTX_LIMIT=$DEFAULT_CTX_LIMIT

fi

TRANSCRIPT=$(echo "$INPUT" | jq -r '.transcript_path // ""')

DIR=$(basename "$CWD")

# ─────────────────────────────────────────────────────────────────────────────

# Git Status

# ─────────────────────────────────────────────────────────────────────────────

get_git_info() {

git -C "$CWD" rev-parse --git-dir >/dev/null 2>&1 || return 0

local branch dirty=""

branch=$(git -C "$CWD" --no-optional-locks branch --show-current 2>/dev/null)

[[ -z "$branch" ]] && branch="detached"

# Check for uncommitted changes

if ! git -C "$CWD" --no-optional-locks diff --quiet 2>/dev/null ||

! git -C "$CWD" --no-optional-locks diff --cached --quiet 2>/dev/null ||

[[ -n $(git -C "$CWD" --no-optional-locks ls-files --others --exclude-standard 2>/dev/null) ]]; then

dirty=" ${C_YELLOW}✗"

fi

printf " ${C_BLUE}git:(${C_RED}%s${C_BLUE})%s${C_RESET}" "$branch" "$dirty"

}

# ─────────────────────────────────────────────────────────────────────────────

# Token & Usage Metrics

# ─────────────────────────────────────────────────────────────────────────────

get_token_metrics() {

[[ ! -f "$TRANSCRIPT" ]] && echo "0 0" && return 0

local in_tok cache_read cache_create out_tok total_in

in_tok=$(grep -oE '"input_tokens":[0-9]+' "$TRANSCRIPT" 2>/dev/null | grep -oE '[0-9]+' | tail -1)

cache_read=$(grep -oE '"cache_read_input_tokens":[0-9]+' "$TRANSCRIPT" 2>/dev/null | grep -oE '[0-9]+' | tail -1)

cache_create=$(grep -oE '"cache_creation_input_tokens":[0-9]+' "$TRANSCRIPT" 2>/dev/null | grep -oE '[0-9]+' | tail -1)

out_tok=$(grep -oE '"output_tokens":[0-9]+' "$TRANSCRIPT" 2>/dev/null | grep -oE '[0-9]+' | awk '{s+=$1} END {print s+0}')

# Default to 0 if empty

in_tok=${in_tok:-0}

cache_read=${cache_read:-0}

cache_create=${cache_create:-0}

out_tok=${out_tok:-0}

total_in=$((in_tok + cache_read + cache_create))

echo "$total_in $out_tok"

}

# ─────────────────────────────────────────────────────────────────────────────

# Session Duration

# ─────────────────────────────────────────────────────────────────────────────

get_session_duration() {

[[ ! -f "$TRANSCRIPT" ]] && echo "0m" && return 0

local start_time now elapsed hours mins

if [[ "$OSTYPE" == darwin* ]]; then

start_time=$(stat -f %B "$TRANSCRIPT" 2>/dev/null || echo 0)

else

start_time=$(stat -c %W "$TRANSCRIPT" 2>/dev/null || echo 0)

[[ "$start_time" == "0" ]] && start_time=$(stat -c %Y "$TRANSCRIPT" 2>/dev/null || echo 0)

fi

[[ -z "$start_time" || "$start_time" -le 0 ]] 2>/dev/null && echo "0m" && return 0

now=$(date +%s)

elapsed=$((now - start_time))

hours=$((elapsed / 3600))

mins=$(((elapsed % 3600) / 60))

if [[ $hours -gt 0 ]]; then

echo "${hours}h${mins}m"

else

echo "${mins}m"

fi

}

# ─────────────────────────────────────────────────────────────────────────────

# Cost Calculation

# ─────────────────────────────────────────────────────────────────────────────

calculate_cost() {

local total_in=$1 out_tok=$2

local price_in price_out

case "$MODEL_ID" in

*opus*) price_in=15; price_out=75 ;;

*haiku*) price_in=0.25; price_out=1.25 ;;

*) price_in=3; price_out=15 ;; # sonnet/default

esac

awk "BEGIN {printf \"%.2f\", ($total_in * $price_in / 1000000) + ($out_tok * $price_out / 1000000)}"

}

# ─────────────────────────────────────────────────────────────────────────────

# Context Progress Bar

# ─────────────────────────────────────────────────────────────────────────────

build_progress_bar() {

local pct=$1

local pct_int filled empty bar="" color

pct_int=${pct%.*}

pct_int=${pct_int:-0}

filled=$(awk "BEGIN {printf \"%.0f\", ($pct / 100) * $BAR_WIDTH}")

filled=${filled:-0}

empty=$((BAR_WIDTH - filled))

# Color based on usage level

if [[ $pct_int -ge $CONTEXT_CRIT_PCT ]]; then

color=$C_RED

elif [[ $pct_int -ge $CONTEXT_WARN_PCT ]]; then

color=$C_YELLOW

else

color=$C_GREEN

fi

for ((i = 0; i < filled; i++)); do bar+="█"; done

for ((i = 0; i < empty; i++)); do bar+="░"; done

printf "%b[%s %s%%]%b" "$color" "$bar" "$pct" "$C_RESET"

}

# ─────────────────────────────────────────────────────────────────────────────

# Main

# ─────────────────────────────────────────────────────────────────────────────

main() {

local total_in out_tok ctx_pct duration cost git_info

read -r total_in out_tok <<< "$(get_token_metrics)"

total_in=${total_in:-0}

out_tok=${out_tok:-0}

ctx_pct=$(awk "BEGIN {printf \"%.1f\", ($total_in / $CTX_LIMIT) * 100}")

duration=$(get_session_duration)

cost=$(calculate_cost "$total_in" "$out_tok")

git_info=$(get_git_info)

# Output

printf "%b➜%b %b%s%b%s %b[%s]%b %b[↑%dk/↓%dk \$%s]%b %s %b⏱ %s%b" \

"$C_BOLD_GREEN" "$C_RESET" \

"$C_CYAN" "$DIR" "$C_RESET" \

"$git_info" \

"$C_DIM" "$MODEL" "$C_RESET" \

"$C_DIM" "$((total_in / 1000))" "$((out_tok / 1000))" "$cost" "$C_RESET" \

"$(build_progress_bar "$ctx_pct")" \

"$C_CYAN" "$duration" "$C_RESET"

}

main