smoothline 0.1.0

Smooth, gradient statusline for Claude Code — context window + Pro/Max 5h/7d rate-limit bars

smoothline

Smooth, gradient statusline for Claude Code — context window + Pro/Max 5h/7d rate-limit bars (Windows / macOS / Linux)

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A drop-in statusline for Claude Code that ships the same look across Windows, macOS, and Linux.

OS	Installer	How it runs
Windows	install.cmd (or install.ps1)	statusline.cmd invokes Python
macOS / Linux	install.sh	statusline.py runs directly via shebang

The core renderer (statusline.py) is identical on every OS. Only the installer branches per OS, and ~/.claude/settings.json's statusLine.command is wired to the right entry point automatically.

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Preview

youja@HOSTNAME ~/workspace │ ⎇ main │ Claude Opus 4.7 │ ctx [████▏      ] 42% │ 5h [██▏     ] 28% ↻3h11m │ 7d [▉       ] 12% ↻4d23h

• user@host + current directory (home shown as ~)
• git branch (when present)
• model name
• ctx — context window usage of the current session (10-cell bar)
• 5h — Claude Pro/Max 5-hour rolling window usage + time until reset ↻Xh Ym (8-cell bar)
• 7d — Claude Pro/Max 7-day rolling window usage + time until reset ↻Xd (8-cell bar)

All bars use 1/8-cell smooth Unicode glyphs and a green→yellow→red gradient that follows the percentage.

When 5h / 7d show up: only for Claude.ai Pro/Max subscribers. After the first API response, the statusline JSON includes rate_limits.five_hour.* / rate_limits.seven_day.* (per Anthropic's official statusline schema). For API-key users, or before the first message, those two chunks are hidden automatically.

The renderer parses stdin JSON once and reads .git/HEAD directly — no git subprocess per prompt.

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0. Prerequisites

• Python 3.x — required to run statusline.py. Any Python build works.
  • Windows: python / python.exe must be reachable on PATH, or set the absolute path inside statusline.cmd
  • macOS/Linux: python3 or python must be on PATH (install.sh discovers this automatically)
• A terminal with truecolor (24-bit) ANSI support so the gradient renders. Windows Terminal / iTerm2 / recent GNOME Terminal / etc. all qualify.

Verify Python:

# Windows (PowerShell)
where.exe python
# macOS / Linux
which python3 || which python

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1. The three files

Destination: %USERPROFILE%\.claude\ (e.g. C:\Users\<USERNAME>\.claude\) on Windows, ~/.claude/ elsewhere.

1-A. statusline.cmd (Windows only — generated by the installer)

The installer writes this file at install time, baking in the absolute path to the Python it found on PATH. You normally don't touch it. A typical generated copy:

@echo off
"C:\Users\<USERNAME>\AppData\Local\Programs\Python\Python312\python.exe" "C:\Users\<USERNAME>\.claude\statusline.py"

If python is not on PATH at install time, the installer falls back to the literal python and warns you. Once Python is installed and on PATH, just re-run the installer.

1-B. statusline.py

Use the statusline.py shipped in this package as-is. The full source (Pro/Max rate_limits rendering included) lives in the file — the installer wires up the canonical copy.

Encoding note: statusline.py must be saved as UTF-8 (no BOM). PowerShell's default for Set-Content / Out-File is UTF-16 LE, which corrupts it. The "One-shot install" section below handles this safely.

1-C. statusline-command.ps1 (optional)

A pure-PowerShell fallback. No colors, no smooth bars, ASCII only. You don't normally need it — keep it as a backup for machines without Python installed.

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2. Registering in settings.json (the installer does this for you)

The installer adds/merges the statusLine key into ~/.claude/settings.json, preserving any other keys.

If you wire it up by hand, here is what the OS-specific entry looks like:

Windows — %USERPROFILE%\.claude\settings.json

{
  "statusLine": {
    "type": "command",
    "command": "C:\\Users\\<USERNAME>\\.claude\\statusline.cmd",
    "padding": 0
  }
}

macOS / Linux — ~/.claude/settings.json

{
  "statusLine": {
    "type": "command",
    "command": "/Users/<USERNAME>/.claude/statusline.py",
    "padding": 0
  }
}

Replace <USERNAME>. On macOS/Linux, statusline.py is chmod +x'd and has a #!/usr/bin/env python3 shebang, so it runs directly — no wrapper needed.

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3. One-shot install

3-A. One-liner (fastest)

The installer pulls everything it needs straight from GitHub, drops it under ~/.claude/, and patches settings.json.

macOS / Linux

curl -fsSL https://raw.githubusercontent.com/youja2014/smoothline/main/install.sh | bash

Windows (PowerShell)

irm https://raw.githubusercontent.com/youja2014/smoothline/main/install.ps1 | iex

Windows (cmd)

curl -fsSL https://raw.githubusercontent.com/youja2014/smoothline/main/install.cmd -o install.cmd && install.cmd && del install.cmd

3-B. git clone / zip install

Grab the sources and run the installer in local mode. Sibling files are copied verbatim, so this works fully offline.

Windows

install.cmd       :: double-click works

or PowerShell:

.\install.ps1

macOS / Linux

bash install.sh
# or
chmod +x install.sh && ./install.sh

Inside Claude Code (macOS/Linux)

On a machine that already has Claude Code, cd into the unpacked folder and just say:

"Run install.sh in this folder to set up the statusline"

What every installer does

1. Source the assets — if statusline.py is a sibling, copy it (local mode); otherwise download from the GitHub raw URL (one-liner mode)
2. Auto-detect Python — Windows checks python on PATH, Unix tries python3 then python
3. On Windows, regenerate statusline.cmd with the detected Python's absolute path (so the one-liner install just works without editing)
4. Add/replace only the statusLine key in ~/.claude/settings.json (other keys preserved)
5. Run the statusline once with a dummy JSON payload and print the output

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4. Verifying

The installer prints sample output, so usually you don't need to do anything. To re-run the check:

Windows (PowerShell)

$json = '{"model":{"display_name":"Claude Opus 4.7"},"workspace":{"current_dir":"D:\\workspace"},"context_window":{"used_percentage":42},"rate_limits":{"five_hour":{"used_percentage":28,"resets_at":2000000000},"seven_day":{"used_percentage":12,"resets_at":2000300000}}}'
$tmp = [System.IO.Path]::GetTempFileName()
[System.IO.File]::WriteAllText($tmp, $json, (New-Object System.Text.UTF8Encoding $false))
& cmd /c "type `"$tmp`" | `"$env:USERPROFILE\.claude\statusline.cmd`""
Remove-Item $tmp

Piping '{...}' | statusline.cmd directly in PowerShell encodes as UTF-16 LE and breaks Python's JSON parser. Going through a tempfile is the safe path.

macOS / Linux (bash)

NOW=$(date +%s)
echo '{"model":{"display_name":"Claude Opus 4.7"},"workspace":{"current_dir":"'"$HOME"'"},"context_window":{"used_percentage":42},"rate_limits":{"five_hour":{"used_percentage":28,"resets_at":'$((NOW+11600))'},"seven_day":{"used_percentage":12,"resets_at":'$((NOW+424600))'}}}' \
  | "$HOME/.claude/statusline.py"

You should see two colored lines. After that, restart Claude Code — the new statusline shows up immediately.

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5. Troubleshooting

Symptom	Cause / Fix
Korean / emoji garbled	statusline.py was saved as UTF-16 or CP949. Re-save as UTF-8 (no BOM).
Raw color codes ([38;2;...m) visible	Terminal lacks ANSI truecolor. Switch to Windows Terminal / iTerm2 / recent GNOME Terminal.
'python' is not recognized (Win) / python3: command not found (Unix)	Python not on PATH. On Windows, hard-code the absolute path inside statusline.cmd. On macOS, brew install python or use python.org. On Linux, use the distro's package manager.
Statusline doesn't show at all	Verify the command path in settings.json. Run section 4 manually to debug. On macOS/Linux, check chmod +x ~/.claude/statusline.py.
Bar glyphs out of alignment	Font lacks Powerline / Unicode box characters. Switch to Cascadia Mono / JetBrains Mono / Menlo.
Permission denied on Linux	chmod +x ~/.claude/statusline.py was skipped. Re-run the installer or fix it manually.

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6. Customization

• Bar width: the 4th argument to each render_usage(...) call inside main() (ctx is 10, 5h/7d are 8)
• Colors: GRAY / BLUE / PURPLE / ORANGE / SEP RGB tuples
• Gradient breakpoints: green / yellow / red inside gradient_color()
• Display order: reorder how line1 / line2 chunks are appended
• Hide the 5h / 7d chunks: comment out their render_usage(...) calls
• Drop the reset-time tail: pass None as the resets_at argument to render_usage()

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License

MIT