A Bash script to modify the status line for the Claude Code CLI.

statusline-command.sh

#!/bin/bash
# Dependencies: awk, jq
# Displayed as follows: `Sonnet 5 [high] ▸ current_dir ▸ ○○○○○○○○○○ 6% 62.16k`

input=$(cat)

# Model name
model=$(echo "$input" | jq -r '.model.display_name // "unknown"')

# Reasoning level (only if effort is present)
effort=$(echo "$input" | jq -r '.effort.level // empty')
if [ -n "$effort" ]; then
  model_effort="$model [$effort]"
else
  model_effort="$model"
fi

# Repo name (workspace.repo.name -> fallback to basename of current_dir)
repo_name=$(echo "$input" | jq -r '.workspace.repo.name // empty')
if [ -z "$repo_name" ]; then
  cwd=$(echo "$input" | jq -r '.workspace.current_dir // empty')
  repo_name=$(basename "$cwd" 2>/dev/null)
fi

# Git branch
cwd=$(echo "$input" | jq -r '.workspace.current_dir // empty')
branch=$(git -C "$cwd" --no-optional-locks rev-parse --abbrev-ref HEAD 2>/dev/null)

# Assemble line 1
line1="$model_effort"
if [ -n "$repo_name" ] || [ -n "$branch" ]; then
  repo_branch=""
  [ -n "$repo_name" ] && repo_branch="$repo_name"
  [ -n "$branch" ] && repo_branch="$repo_branch ⎇ $branch"
  line1="$line1 ▸ $repo_branch"
fi

# Context gauge
used_pct=$(echo "$input" | jq -r '.context_window.used_percentage // empty')
if [ -n "$used_pct" ]; then
  pct_int=$(printf '%.0f' "$used_pct" 2>/dev/null || echo 0)
  filled=$(( pct_int / 10 ))
  [ "$filled" -gt 10 ] 2>/dev/null && filled=10
  [ "$filled" -lt 0 ] 2>/dev/null && filled=0
  gauge=""
  for i in $(seq 1 10); do
    if [ "$i" -le "$filled" ]; then
      gauge="${gauge}●"
    else
      gauge="${gauge}○"
    fi
  done
  ctx_part="$gauge $(printf '%.0f' "$used_pct")%"
else
  ctx_part="○○○○○○○○○○ --%"
fi

# Token usage (uses total_input_tokens)
tokens=$(echo "$input" | jq -r '.context_window.total_input_tokens // empty')
tok_part=""
if [ -n "$tokens" ] && [ "$tokens" != "null" ]; then
  if awk "BEGIN{exit !($tokens >= 1000000)}" 2>/dev/null; then
    tok_part=$(awk "BEGIN{printf \"%.2fm\", $tokens/1000000}")
  elif awk "BEGIN{exit !($tokens >= 1000)}" 2>/dev/null; then
    tok_part=$(awk "BEGIN{printf \"%.2fk\", $tokens/1000}")
  else
    tok_part="${tokens}"
  fi
fi

# Assemble remaining elements
line2="$ctx_part"
[ -n "$tok_part" ] && line2="$line2 $tok_part"

# Combine into single line
printf '%s ▸ %s' "$line1" "$line2"