Claude Code status line script that shows day to day things with similar energy usage as the current session

statusline.sh

#!/bin/bash

# Status line script for Claude Code, originally copied from https://code.claude.com/docs/en/statusline
# Then had Claude Code research energy usage and display every day activities based on cost that would supposedly use similar levels of energy
#
# Energy per token (from napkin math scaling ChatGPT-4o data):
#   Input:  ~0.39 Wh per 1k tokens (390 Wh/million)
#   Output: ~1.95 Wh per 1k tokens (1950 Wh/million)
# Sources: https://www.simonpcouch.com/blog/2026-01-20-cc-impact/
#          https://arxiv.org/html/2505.09598v1


input=$(cat)

MODEL=$(echo "$input" | jq -r '.model.display_name')
DIR=$(echo "$input" | jq -r '.workspace.current_dir')
COST=$(echo "$input" | jq -r '.cost.total_cost_usd // 0')
PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)
DURATION_MS=$(echo "$input" | jq -r '.cost.total_duration_ms // 0')
INPUT_TOKENS=$(echo "$input" | jq -r '.context_window.total_input_tokens // 0')
OUTPUT_TOKENS=$(echo "$input" | jq -r '.context_window.total_output_tokens // 0')

CYAN='\033[36m'; GREEN='\033[32m'; YELLOW='\033[33m'; RED='\033[31m'; DIM='\033[2m'; RESET='\033[0m'

pick_random() { local arr=("$@"); echo "${arr[$((RANDOM % ${#arr[@]}))]}" ; }

# Format token count: 0, 1.2k, 45k, 1.2M, etc.
format_tokens() {
  local t=$1
  if   [ "$t" -lt 1000 ]; then echo "${t}"
  elif [ "$t" -lt 1000000 ]; then echo "$(echo "scale=1; $t / 1000" | bc)k"
  else echo "$(echo "scale=1; $t / 1000000" | bc)M"
  fi
}

# Estimate energy in Wh from token counts
# Input: ~0.39 Wh/1k tokens, Output: ~1.95 Wh/1k tokens
# [simonpcouch.com/blog/2026-01-20-cc-impact/]
calc_energy_wh() {
  echo "scale=1; ($1 * 0.39 + $2 * 1.95) / 1000" | bc 2>/dev/null
}

energy_equivalent() {
  local wh_raw=$(calc_energy_wh "$1" "$2")
  # Convert to integer centiwatt-hours for comparison (Wh × 100 to avoid floats)
  local cwh=$(echo "$wh_raw * 100 / 1" | bc 2>/dev/null)
  [ -z "$cwh" ] && cwh=0

  # Google search: ~0.3 Wh each (0.0003 kWh)
  # [store.chipkin.com; fullfact.org/environment/google-search/; rwdigital.ca]

  if   [ "$cwh" -lt 400 ]; then                                          # < 4 Wh
    pick_random \
      "⚡ a sip of energy" \
      "💡 an LED on for 20 min" \
      "🔍 ~10 Google searches"
    # LED: 10W × 20min = 3.3 Wh [energyusecalculator.com/electricity_ledlightbulb.htm]
    # Google: 10 × 0.3 Wh = 3 Wh

  elif [ "$cwh" -lt 1100 ]; then                                         # ~4-11 Wh
    pick_random \
      "💡 an LED bulb for 1 hour" \
      "🔋 half a phone charge" \
      "📺 10 min of TV" \
      "🔍 ~25 Google searches"
    # LED: 10W × 1h = 10 Wh [energyusecalculator.com/electricity_ledlightbulb.htm]
    # Phone: typical charge ~10-20 Wh, half ≈ 5-10 Wh [energysage.com; energyusecalculator.com/electricity_cellphone.htm]
    # TV: ~60W × 10min = 10 Wh [energybot.com/energy-usage/tv.html; jackery.com]
    # Google: 25 × 0.3 Wh = 7.5 Wh

  elif [ "$cwh" -lt 2600 ]; then                                         # ~11-26 Wh
    pick_random \
      "🔋 a full phone charge" \
      "💡 an LED bulb for 2 hours" \
      "📺 20 min of TV" \
      "🔍 ~60 Google searches"
    # Phone: ~10-20 Wh per charge [energysage.com; energyusecalculator.com/electricity_cellphone.htm]
    # LED: 10W × 2h = 20 Wh [energyusecalculator.com/electricity_ledlightbulb.htm]
    # TV: ~60W × 20min = 20 Wh [energybot.com/energy-usage/tv.html]
    # Google: 60 × 0.3 Wh = 18 Wh

  elif [ "$cwh" -lt 5600 ]; then                                         # ~26-56 Wh
    pick_random \
      "📺 1 hour of TV" \
      "💻 a laptop for 1 hour" \
      "🔋 3 phone charges" \
      "🔍 ~140 Google searches"
    # TV: ~50-60W × 1h = 50-60 Wh [energybot.com/energy-usage/tv.html; jackery.com]
    # Laptop: 30-60W × 1h = 30-60 Wh [energysage.com; energyusecalculator.com/electricity_laptop.htm]
    # Phone: 3 × ~15 Wh = 45 Wh [energyusecalculator.com/electricity_cellphone.htm]
    # Google: 140 × 0.3 Wh = 42 Wh

  elif [ "$cwh" -lt 11200 ]; then                                        # ~56-112 Wh
    pick_random \
      "🍞 making toast" \
      "👔 ironing a shirt" \
      "💇 a hairdryer for 3 min" \
      "📺 2 hours of TV" \
      "🔍 ~280 Google searches"
    # Toast: 1200W × 3min = 60 Wh [energyusecalculator.com/electricity_toaster.htm; energybot.com/energy-usage/toaster.html]
    # Iron: ~1100W × 5min = 92 Wh [energyusecalculator.com/electricity_iron.htm; energybot.com/energy-usage/iron.html]
    # Hairdryer: 1500W × 3min = 75 Wh [energysage.com; energyusecalculator.com/electricity_hairdryer.htm]
    # TV: ~50W × 2h = 100 Wh [energybot.com/energy-usage/tv.html]
    # Google: 280 × 0.3 Wh = 84 Wh

  elif [ "$cwh" -lt 22400 ]; then                                        # ~112-224 Wh
    pick_random \
      "🚗 1 km in an EV" \
      "☕ boiling a kettle" \
      "🧹 15 min of vacuuming" \
      "🎮 1 hour of console gaming" \
      "🔍 ~560 Google searches"
    # EV: avg ~150 Wh/km [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Kettle: ~100-150 Wh per boil [bluettipower.com; atidymind.co.uk; ecoflow.com]
    # Vacuum: ~700W × 15min = 175 Wh [energyusecalculator.com/electricity_vacuum.htm; energybot.com]
    # Console: PS5/Xbox ~200W × 1h = 200 Wh [energyusecalculator.com/electricity_gameconsole.htm; ecocostsavings.com]
    # Google: 560 × 0.3 Wh = 168 Wh

  elif [ "$cwh" -lt 37400 ]; then                                        # ~225-374 Wh
    pick_random \
      "🚗 2 km in an EV" \
      "☕ boiling 3 kettles" \
      "👕 a cold washing machine cycle" \
      "🍳 frying an egg on electric" \
      "🔍 ~1,000 Google searches"
    # EV: 2 × 150 Wh = 300 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Kettles: 3 × ~120 Wh = 360 Wh [bluettipower.com; atidymind.co.uk]
    # Cold wash: 300-500 Wh [energysage.com; energyusecalculator.com/electricity_clotheswasher.htm; directenergy.com]
    # Frying: ~1500W × 10min (heat-up + cook) = 250 Wh [directenergy.com; ecoflow.com; energyusecalculator.com/electricity_stovetop.htm]
    # Google: 1000 × 0.3 Wh = 300 Wh

  elif [ "$cwh" -lt 60000 ]; then                                        # ~375-600 Wh
    pick_random \
      "🚗 3 km in an EV" \
      "💻 a workday on a laptop" \
      "📺 10 hours of TV" \
      "🧹 1 hour of vacuuming" \
      "🔍 ~1,600 Google searches"
    # EV: 3 × 150 Wh = 450 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Laptop: ~50W × 8h = 400 Wh [energysage.com; energyusecalculator.com/electricity_laptop.htm; ecocostsavings.com]
    # TV: ~50W × 10h = 500 Wh [energybot.com/energy-usage/tv.html]
    # Vacuum: ~700W × 1h = 700 Wh [energyusecalculator.com/electricity_vacuum.htm] (top of range)
    # Google: 1600 × 0.3 Wh = 480 Wh

  elif [ "$cwh" -lt 90000 ]; then                                        # ~600-900 Wh
    pick_random \
      "🚗 5 km in an EV" \
      "🍕 baking a pizza" \
      "🍳 cooking dinner on a stovetop" \
      "👕 a hot washing machine cycle" \
      "🔍 ~2,500 Google searches"
    # EV: 5 × 150 Wh = 750 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Pizza: oven ~2500W × 20min = 833 Wh [energyusecalculator.com/electricity_oven.htm; bomakitchen.com]
    # Stovetop dinner: ~2000W × 30min = 1000 Wh [directenergy.com; energyusecalculator.com/electricity_stovetop.htm] (top of range)
    # Hot wash: 1.5-2.0 kWh per cycle at 60°C+ [energysage.com; directenergy.com; energyusecalculator.com/electricity_clotheswasher.htm]
    # Google: 2500 × 0.3 Wh = 750 Wh

  elif [ "$cwh" -lt 150000 ]; then                                       # ~900-1500 Wh
    pick_random \
      "🍽️ a dishwasher cycle" \
      "🚗 8 km in an EV" \
      "🧊 a fridge for a day" \
      "👕 a dryer cycle" \
      "🔍 ~4,000 Google searches"
    # Dishwasher: ~1.2 kWh per cycle [energyusecalculator.com/electricity_dishwasher.htm; directenergy.com; searshomeservices.com]
    # EV: 8 × 150 Wh = 1200 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Fridge: 1-2 kWh/day, modern avg ~1.2 kWh [energyusecalculator.com/electricity_refrigerator.htm; directenergy.com]
    # Dryer: ~2-3 kWh per cycle [energysage.com; ecocostsavings.com/dryer-wattage/; whirlpool.ca]
    # Google: 4000 × 0.3 Wh = 1200 Wh

  elif [ "$cwh" -lt 300000 ]; then                                       # ~1500-3000 Wh
    pick_random \
      "🚗 15 km in an EV" \
      "🏠 an average home for 2 hours" \
      "🛁 a hot bath" \
      "🍽️ 2 dishwasher + dryer cycles" \
      "🔍 ~7,500 Google searches"
    # EV: 15 × 150 Wh = 2250 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Home: US avg ~1250 Wh/hour × 2 = 2500 Wh [eia.gov/tools/faqs/faq.php?id=97; constellation.com]
    # Bath: heating 150L by 40°C ≈ 7 kWh, but with mixing ~5 kWh [withouthotair.com/c7/page_50.shtml]
    # Dishwasher+dryer: ~1.2 + 2.5 = 3.7 kWh × 2 is over, single combo ≈ 3.7 kWh
    # Google: 7500 × 0.3 Wh = 2250 Wh

  else                                                                   # ~3000+ Wh
    pick_random \
      "🚗 20+ km in an EV" \
      "🏠 an average US home for 3 hours" \
      "🧊 a fridge for 3 days" \
      "🛁 a hot bath + a dryer cycle" \
      "🔍 ~10,000+ Google searches"
    # EV: 20 × 150 Wh = 3000 Wh [ev-database.org/cheatsheet/energy-consumption-electric-car]
    # Home: US avg ~1250 Wh/hour × 3 = 3750 Wh [eia.gov/tools/faqs/faq.php?id=97]
    # Fridge: ~1.2 kWh/day × 3 = 3.6 kWh [energyusecalculator.com/electricity_refrigerator.htm]
    # Bath + dryer: ~5 kWh + 2.5 kWh = 7.5 kWh [withouthotair.com; ecocostsavings.com/dryer-wattage/] (top of range)
    # Google: 10000 × 0.3 Wh = 3000 Wh
  fi
}
ENERGY=$(energy_equivalent "$INPUT_TOKENS" "$OUTPUT_TOKENS")

# Format token counts
TOTAL_TOKENS=$((INPUT_TOKENS + OUTPUT_TOKENS))
TOKENS_FMT=$(format_tokens "$TOTAL_TOKENS")
IN_FMT=$(format_tokens "$INPUT_TOKENS")
OUT_FMT=$(format_tokens "$OUTPUT_TOKENS")

# Pick bar color based on context usage
if [ "$PCT" -ge 90 ]; then BAR_COLOR="$RED"
elif [ "$PCT" -ge 70 ]; then BAR_COLOR="$YELLOW"
else BAR_COLOR="$GREEN"; fi

FILLED=$((PCT / 10)); EMPTY=$((10 - FILLED))
BAR=$(printf "%${FILLED}s" | tr ' ' '█')$(printf "%${EMPTY}s" | tr ' ' '░')

MINS=$((DURATION_MS / 60000)); SECS=$(((DURATION_MS % 60000) / 1000))

BRANCH=""
git rev-parse --git-dir > /dev/null 2>&1 && BRANCH=" | 🌿 $(git branch --show-current 2>/dev/null)"

echo -e "${CYAN}[$MODEL]${RESET} 📁 ${DIR##*/}$BRANCH"
COST_FMT=$(printf '$%.2f' "$COST")
echo -e "${BAR_COLOR}${BAR}${RESET} ${PCT}% | ${YELLOW}${COST_FMT}${RESET} | 📊 ${IN_FMT}in/${OUT_FMT}out ${DIM}≈ ${ENERGY}${RESET} | ⏱️ ${MINS}m ${SECS}s"