Claudehack v1.0

The status line that tells you where you are.

What it is

A custom bash script that replaces Claude Code's default status line with a channel-aware, cost-tracking, context-percentage display.

Requires: jq (JSON processor)

#redthread · Opus 4.6 · $2.987 · 54% context · ⟵ —

Components

Field	Source	Purpose
#channel	Detected from working directory	Which branch of the tree you're on
Model	Claude Code JSON .model.display_name	Which model is active
$cost	Claude Code JSON .cost.total_cost_usd	Session spend so far
N% context	Claude Code JSON .context_window.used_percentage	How full the context window is
⟵ message	Claude Code JSON .last_user_message	Last user input (truncated)

Channel Detection

The channel is derived from the current working directory:

Directory pattern	Channel
*/redthread*	#redthread
*/ocapistaine*	#jnxmas
*/vaettir*	#jnxmas
*/soeurise*	#soeurise
*/sovereignty*	#sovereignty
*/joie-home* or */dummit*	#dummiþ
*/informatique*	#école
*/audierne*	#audierne
*/docs* or *locki*	#jnxmas
anything else	#vaettir

Visual Context Bar

Green  (< 50%):  ███████░░░░░░░░
Yellow (50-80%): ██████████░░░░░
Red    (> 80%):  █████████████░░

Files

File	Location	Purpose
statusline.sh	~/.claude/statusline.sh	The script itself
settings.json	~/.claude/settings.json	Claude Code config that activates it

settings.json (relevant section)

{
  "statusLine": {
    "type": "command",
    "command": "~/.claude/statusline.sh",
    "padding": 2
  }
}

Backup

Both files are backed up to Synology NAS via PRIVATE_backup_synology.sh:

• ~/.claude/settings.json — synced since initial backup script
• ~/.claude/statusline.sh — added 2026-03-24 (existence-checked)

Install

# 1. Place the script
cp statusline.sh ~/.claude/statusline.sh
chmod +x ~/.claude/statusline.sh

# 2. Add to settings.json (merge with existing)
# See settings.json section above

# 3. Restart Claude Code — the status line appears

The Script

Source: ~/.claude/statusline.sh

#!/bin/bash
# Vaettir Status Line — Claudehack v1.0
# Reads Claude Code JSON from stdin, displays channel + model + context

input=$(cat)

MODEL=$(echo "$input" | jq -r '.model.display_name // "unknown"')
PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)
COST=$(echo "$input" | jq -r '.cost.total_cost_usd // 0')
CWD=$(echo "$input" | jq -r '.cwd // ""')

# Detect channel from working directory
CHANNEL=""
case "$CWD" in
  */joie-home*|*/dummit*)  CHANNEL="#dummiþ" ;;
  */redthread*)            CHANNEL="#redthread" ;;
  */ocapistaine*)          CHANNEL="#jnxmas" ;;
  */vaettir*)              CHANNEL="#jnxmas" ;;
  */soeurise*)             CHANNEL="#soeurise" ;;
  */sovereignty*)          CHANNEL="#sovereignty" ;;
  */informatique*)         CHANNEL="#école" ;;
  */audierne*)             CHANNEL="#audierne" ;;
  */docs*|*locki*)         CHANNEL="#jnxmas" ;;
  *)                       CHANNEL="#vaettir" ;;
esac

LAST_INPUT=$(echo "$input" | jq -r '.last_user_message // ""' | head -1 | cut -c1-60)
if [ -z "$LAST_INPUT" ]; then LAST_INPUT="—"; fi

BAR_LEN=15
FILLED=$((PCT * BAR_LEN / 100))
EMPTY=$((BAR_LEN - FILLED))
BAR=$(printf '█%.0s' $(seq 1 $FILLED 2>/dev/null))$(printf '░%.0s' $(seq 1 $EMPTY 2>/dev/null))

if [ "$PCT" -lt 50 ]; then COLOR="\033[32m"
elif [ "$PCT" -lt 80 ]; then COLOR="\033[33m"
else COLOR="\033[31m"; fi
RESET="\033[0m"; BOLD="\033[1m"; DIM="\033[2m"; CYAN="\033[36m"

echo -e "${BOLD}${CYAN}${CHANNEL}${RESET} ${DIM}·${RESET} ${MODEL} ${DIM}· \$${COST}${RESET}"
echo -e "${COLOR}${BAR}${RESET} ${DIM}${PCT}% context${RESET} ${DIM}· ⟵ ${LAST_INPUT}${RESET}"

Why "Claudehack"

A hack in the original sense — a clever, minimal modification that makes a tool do something its designers didn't explicitly intend. One bash script, one JSON config line, and the terminal becomes the tree's pulse monitor.

Version History

Version	Date	What changed
v1.0	2026-03-23	Initial: channel detection, model, cost, context bar, color coding