Statusline Config

Script Rules

• Shebang: #!/bin/sh (POSIX)
• Read stdin: input=$(cat)
• Parse JSON: jq -r '.field // fallback'
• Theme from env: theme="${CLAUDE_STATUSLINE_THEME:-ansi-default}"
• NO_COLOR: [ -n "${NO_COLOR:-}" ] && theme="none"
• Theme aliases: catppuccin → catppuccin-mocha
• Invalid theme: fallback to ansi-default
• Color output: printf "%b" for ANSI/TrueColor, printf "%s" for none
• TrueColor format: \033[38;2;R;G;Bm (24-bit foreground)
• Git: git --no-optional-locks -C "$dir"
• Git cache: /tmp/claude-statusline-git-cache-$(id -u), 5s TTL, stat -f %m (macOS) / stat -c %Y (Linux)
• CWD truncation: depth >2 → ~/.../basename
• Cost: only when >= 0.005, format est $X.XX
• Alert style: C_ALERT + bold (\033[1m) to distinguish from C_CTX_BAD
• Token format: %.1fk via awk (e.g. 8500 → 8.5k); values < 1000 show raw number
• Tier format: >=1M → (1M), >=1000 → ({N}k), else raw; used for model suffix + context absolute
• Model tier suffix: append (1M) or (200k) from context_window_size; skip if display_name already contains context, 1M, or 200k
• Context absolute: ctx 60% left (600k/1M) — remaining tokens calculated from remaining_percentage * context_window_size / 100
• Sanitize free-text: strip control chars (tr -d '[:cntrl:]') + truncate 30 chars for agent.name, worktree.name, worktree.branch
• Worktree replace: when worktree.name present, replace Directory + Git branch with [WT:{name}] {branch} (or [WT:{name}] if worktree.branch absent — hook-based worktrees)
• Rate limits: show when rate_limits present; display remaining % (100 - used_percentage) with "left" suffix; format 5h: {rem}% left · 7d: {rem}% left; color by worst remaining — Green >40% (C_CTX_OK), Yellow 20-40% (C_CTX_WARN), Red <=20% (C_CTX_BAD); thresholds match context %; OAuth users only
• Rate limits resets_at: extracted but not displayed in v1 (too verbose for statusline)
• Render order (normal): Directory | Git branch | Agent? | Model (tier) | Context % (abs) · Token Usage? · Cost? · Rate Limits?
• Render order (worktree): [WT:name] branch | Agent? | Model (tier) | Context % (abs) · Token Usage? · Cost? · Rate Limits?

Script Structure

#!/bin/sh
input=$(cat)
# ... extract JSON fields ...

theme="${CLAUDE_STATUSLINE_THEME:-ansi-default}"
[ -n "${NO_COLOR:-}" ] && theme="none"

case "$theme" in
  catppuccin|catppuccin-mocha) # set C_* tokens with TrueColor values ;;
  dracula)          # ... ;;
  nord)             # ... ;;
  none)             # all C_* = "" ;;
  *)                # ansi-default: ANSI 16 colors ;;
esac

# ... build output using C_* tokens ...
if [ "$theme" = "none" ]; then
  printf "%s" "$out"
else
  printf "%b" "$out"
fi

Example Output

Normal mode (1M context):
~/.../my-project | feat/auth | Opus 4.6 (1M) | ctx 60% left (600k/1M) · 85.0k/12.0k · est $18.12

Normal mode (200k context):
~/.../my-project | main | Sonnet 4.6 (200k) | ctx 30% left (60k/200k) · 120.0k/8.0k · est $3.50

With agent:
~/.../my-project | feat/auth | security-reviewer | Opus 4.6 (1M) | ctx 48% left (480k/1M) · est $0.12

Worktree mode:
[WT:fix-123] bugfix/issue-123 | Opus 4.6 (1M) | ctx 22% left (220k/1M) · 42.0k/8.0k · est $1.23

With rate limits (OAuth user, green):
~/.../my-project | feat/auth | Opus 4.6 (1M) | ctx 60% left (600k/1M) · 85.0k/12.0k · est $18.12 · 5h: 58% left · 7d: 82% left

Rate limits warning (yellow):
~/.../my-project | main | Opus 4.6 (1M) | ctx 30% left (300k/1M) · 5h: 25% left · 7d: 35% left

Rate limits critical (red):
~/.../my-project | main | Opus 4.6 (1M) | ctx 30% left (300k/1M) · 5h: 8% left · 7d: 55% left

display_name already has context info (no duplicate suffix):
~/.../my-project | main | Opus 4.6 (1M context) | ctx 60% left (600k/1M) · est $18.12

Output

Verification

After generating the script, verify:

• ~/.claude/statusline-command.sh exists and is executable (chmod +x)
• v2 test passes: echo '{"model":{"display_name":"Opus 4.6"},"cwd":"/tmp/test","workspace":{"current_dir":"/tmp/test","project_dir":"/tmp/test"},"context_window":{"remaining_percentage":55,"used_percentage":45,"context_window_size":200000,"total_input_tokens":85000,"total_output_tokens":12000,"current_usage":{"input_tokens":8500,"output_tokens":1200,"cache_creation_input_tokens":5000,"cache_read_input_tokens":2000}},"cost":{"total_cost_usd":0.42},"exceeds_200k_tokens":false,"session_id":"test","version":"2.1.80","output_style":{"name":"default"},"rate_limits":{"five_hour":{"used_percentage":42.5,"resets_at":"2026-03-21T14:30:00Z"},"seven_day":{"used_percentage":18.2,"resets_at":"2026-03-25T00:00:00Z"}}}' | ~/.claude/statusline-command.sh
• Output contains expected segments (directory, model, context %, token usage 8.5k/1.2k)
• Agent test: echo '{"model":{"display_name":"Opus 4.6"},"workspace":{"current_dir":"/tmp/test"},"context_window":{"remaining_percentage":55},"cost":{"total_cost_usd":0.42},"exceeds_200k_tokens":false,"agent":{"name":"security-reviewer"}}' | ~/.claude/statusline-command.sh shows security-reviewer segment
• Worktree test: echo '{"model":{"display_name":"Opus 4.6"},"worktree":{"name":"fix-123","branch":"bugfix/issue-123"},"context_window":{"remaining_percentage":55},"cost":{"total_cost_usd":0.42},"exceeds_200k_tokens":false}' | ~/.claude/statusline-command.sh shows [WT:fix-123] bugfix/issue-123 replacing directory/branch
• Rate limits test: output contains 5h: 58% left · 7d: 82% left with green color
• Rate limits absent: echo '{"model":{"display_name":"Opus 4.6"},"workspace":{"current_dir":"/tmp/test"},"context_window":{"remaining_percentage":55},"cost":{"total_cost_usd":0.42},"exceeds_200k_tokens":false}' | ~/.claude/statusline-command.sh produces valid output without rate limits segment (no errors)
• v1 backward compat: echo '{"model":{"display_name":"Opus 4.6"},"workspace":{"current_dir":"/tmp/test"},"context_window":{"remaining_percentage":55},"cost":{"total_cost_usd":0.42},"exceeds_200k_tokens":false}' | ~/.claude/statusline-command.sh produces valid output without errors
• Theme matches user selection (check color codes in script)
• NO_COLOR=1 produces uncolored output