Claude Code statusline script - shows model, git branch, folder, context usage, and rate limits

statusline-command.sh

#!/bin/bash
input=$(cat)

# Model
MODEL=$(echo "$input" | jq -r '.model.display_name // .model.id // .model.name // empty')
[ -z "$MODEL" ] && MODEL="Claude"

# Directory — prefer cwd from JSON, fall back to shell cwd
CWD=$(echo "$input" | jq -r '.workspace.current_dir // .cwd // empty')
[ -z "$CWD" ] && CWD=$(pwd)
# Show only the current folder name
DIR=$(basename "$CWD")

# Git branch (skip optional index.lock to avoid race conditions)
GIT_BRANCH=""
if git -C "$CWD" rev-parse --is-inside-work-tree --no-optional-locks 2>/dev/null | grep -q true; then
  GIT_BRANCH=$(git -C "$CWD" symbolic-ref --short HEAD 2>/dev/null \
               || git -C "$CWD" rev-parse --short HEAD 2>/dev/null)
fi

# Context window usage
CTX=$(echo "$input" | jq -r '.context_window.used_percentage // empty')
CTX_STR=""
[ -n "$CTX" ] && CTX_STR="ctx: $(printf '%.0f' "$CTX")%"

# Rate limits (absent for API key users)
FIVE_H=$(echo "$input" | jq -r '.rate_limits.five_hour.used_percentage // empty')
WEEK=$(echo "$input" | jq -r '.rate_limits.seven_day.used_percentage // empty')
LIMITS=""
[ -n "$FIVE_H" ] && LIMITS="5h: $(printf '%.0f' "$FIVE_H")%"
[ -n "$WEEK" ]   && LIMITS="${LIMITS:+$LIMITS | }7d: $(printf '%.0f' "$WEEK")%"

# Assemble segments, joining non-empty ones with " | "
SEGMENTS="[$MODEL]"
[ -n "$GIT_BRANCH" ] && SEGMENTS="$SEGMENTS | $GIT_BRANCH"
SEGMENTS="$SEGMENTS | $DIR"
[ -n "$CTX_STR" ]   && SEGMENTS="$SEGMENTS | $CTX_STR"
[ -n "$LIMITS" ]    && SEGMENTS="$SEGMENTS | $LIMITS"

echo "$SEGMENTS"