Add Windows PowerShell port of statusline script

README.md

@@ -153,13 +153,35 @@ Line 1 shows the model, current folder, and git branch. Line 2 shows a visual co
 
 Copy the script:
 
+**macOS / Linux** (requires `jq`):
+
 ```bash
 mkdir -p ~/.claude
 cp scripts/statusline.sh ~/.claude/statusline.sh
 chmod +x ~/.claude/statusline.sh
 ```
 
-The `statusLine` entry in `settings.json` points to this script. Requires `jq`.
+**Windows** (PowerShell 5.1+, no additional dependencies):
+
+```powershell
+Copy-Item scripts/statusline.ps1 ~/.claude/statusline.ps1
+```
+
+Then set the `statusLine` entry in `settings.json` to point to the correct script:
+
+```jsonc
+// macOS / Linux
+"statusLine": {
+  "type": "command",
+  "command": "~/.claude/statusline.sh"
+}
+
+// Windows
+"statusLine": {
+  "type": "command",
+  "command": "powershell -NoProfile -File ~/.claude/statusline.ps1"
+}
+```
 
 ### Global CLAUDE.md
 

scripts/statusline.ps1

@@ -0,0 +1,191 @@
+#!/usr/bin/env powershell
+# Two-line statusline with visual context progress bar (PowerShell port)
+#
+# Line 1: Model, folder, branch
+# Line 2: Progress bar, context %, cost, duration
+#
+# Context % uses Claude Code's pre-calculated remaining_percentage,
+# which accounts for compaction reserves. 100% = compaction fires.
+#
+# Compatible with PowerShell 5.1+. Git is optional.
+
+# Force UTF-8 output
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
+$OutputEncoding = [System.Text.Encoding]::UTF8
+
+# Helper: return first non-null value
+function Coalesce($a, $b) { if ($null -ne $a) { $a } else { $b } }
+
+# Helper: safely access nested property, return default if missing/null
+function SafeGet($obj, [string[]]$path, $default = $null) {
+    $current = $obj
+    foreach ($p in $path) {
+        if ($null -eq $current) { return $default }
+        $current = $current.$p
+    }
+    if ($null -ne $current) { $current } else { $default }
+}
+
+# Read stdin (Claude Code passes JSON data via stdin)
+$stdinData = @($Input) -join "`n"
+
+try {
+    $json = $stdinData | ConvertFrom-Json -ErrorAction Stop
+} catch {
+    Write-Host "[Unknown] unknown"
+    exit 0
+}
+
+# Extract fields with fallbacks
+$currentDir   = Coalesce (SafeGet $json 'workspace','current_dir') "unknown"
+$modelName    = Coalesce (SafeGet $json 'model','display_name') "Unknown"
+$cost         = try { [math]::Floor((Coalesce (SafeGet $json 'cost','total_cost_usd') 0) * 100) / 100 } catch { 0 }
+$linesAdded   = Coalesce (SafeGet $json 'cost','total_lines_added') 0
+$linesRemoved = Coalesce (SafeGet $json 'cost','total_lines_removed') 0
+$durationMs   = Coalesce (SafeGet $json 'cost','total_duration_ms') 0
+
+# Context usage calculation
+$ctxUsed = $null
+try {
+    $remaining = SafeGet $json 'context_window','remaining_percentage'
+    if ($null -ne $remaining) {
+        $ctxUsed = 100 - [math]::Floor($remaining)
+    } elseif ((Coalesce (SafeGet $json 'context_window','context_window_size') 0) -gt 0) {
+        $usage = SafeGet $json 'context_window','current_usage'
+        $totalTokens = (Coalesce (SafeGet $usage 'input_tokens') 0) +
+                       (Coalesce (SafeGet $usage 'cache_creation_input_tokens') 0) +
+                       (Coalesce (SafeGet $usage 'cache_read_input_tokens') 0)
+        $ctxUsed = [math]::Floor($totalTokens * 100 / $json.context_window.context_window_size)
+    }
+} catch {}
+
+# Cache hit percentage
+$cachePct = 0
+try {
+    $usage = SafeGet $json 'context_window','current_usage'
+    $inputTokens = Coalesce (SafeGet $usage 'input_tokens') 0
+    $cacheRead   = Coalesce (SafeGet $usage 'cache_read_input_tokens') 0
+    if (($inputTokens + $cacheRead) -gt 0) {
+        $cachePct = [math]::Floor($cacheRead * 100 / ($inputTokens + $cacheRead))
+    }
+} catch {}
+
+# ANSI escape sequence helper
+$esc = [char]27
+function Ansi($code) { "${esc}[${code}m" }
+
+$reset  = Ansi '0'
+$dim    = Ansi '2'
+$white  = Ansi '37'
+$yellow = Ansi '33'
+$cyan   = Ansi '36'
+$ltblue = Ansi '94'
+$ltcyan = Ansi '96'
+$green  = Ansi '32'
+$red    = Ansi '31'
+
+# Git info (optional - skipped if git is not installed)
+$gitBranch = $null
+$gitRoot   = $null
+$hasGit    = $null -ne (Get-Command git -ErrorAction SilentlyContinue)
+if ($hasGit -and (Test-Path $currentDir -ErrorAction SilentlyContinue)) {
+    try {
+        Push-Location $currentDir
+        $gitBranch = git -c core.useBuiltinFSMonitor=false branch --show-current 2>$null
+        $gitRoot   = git -c core.useBuiltinFSMonitor=false rev-parse --show-toplevel 2>$null
+        Pop-Location
+    } catch {
+        Pop-Location
+    }
+}
+
+# Build folder display name
+if ($gitRoot) {
+    $repoName = Split-Path $gitRoot -Leaf
+    if ($currentDir -eq $gitRoot) {
+        $folderName = $repoName
+    } else {
+        $folderName = Split-Path $currentDir -Leaf
+    }
+} else {
+    $folderName = Split-Path $currentDir -Leaf
+}
+
+# Generate visual progress bar for context usage
+$progressBar = ""
+$barWidth = 12
+$ctxPct = ""
+
+if ($null -ne $ctxUsed) {
+    $filled = [math]::Floor($ctxUsed * $barWidth / 100)
+    $empty  = $barWidth - $filled
+
+    if ($ctxUsed -lt 50) {
+        $barColor = $green
+    } elseif ($ctxUsed -lt 80) {
+        $barColor = $yellow
+    } else {
+        $barColor = $red
+    }
+
+    $filledStr = "".PadLeft($filled, '#')
+    $emptyStr  = "".PadLeft($empty, '-')
+
+    $progressBar = "${barColor}${filledStr}${dim}${emptyStr}${reset}"
+    $ctxPct = "${ctxUsed}%"
+}
+
+# Session time (human-readable)
+$sessionTime = ""
+if ($durationMs -gt 0) {
+    $totalSec = [math]::Floor($durationMs / 1000)
+    $hours    = [math]::Floor($totalSec / 3600)
+    $minutes  = [math]::Floor(($totalSec % 3600) / 60)
+    $seconds  = $totalSec % 60
+    if ($hours -gt 0) {
+        $sessionTime = "${hours}h ${minutes}m"
+    } elseif ($minutes -gt 0) {
+        $sessionTime = "${minutes}m ${seconds}s"
+    } else {
+        $sessionTime = "${seconds}s"
+    }
+}
+
+# Separator
+$sep = "${dim}|${reset}"
+
+# Short model name (e.g., "Opus" instead of "Claude 3.5 Opus")
+$shortModel = $modelName -replace 'Claude [0-9.]+ ', '' -replace '^Claude ', ''
+
+# LINE 1: [Model] folder | branch
+$line1 = "${white}[${shortModel}]${reset}"
+$line1 += " ${ltblue}${folderName}${reset}"
+if ($gitBranch) {
+    $line1 += " ${sep} ${ltcyan}${gitBranch}${reset}"
+}
+
+# LINE 2: Progress bar | Context % | cost | duration | cache
+$line2 = ""
+if ($progressBar) {
+    $line2 = $progressBar
+}
+if ($ctxPct) {
+    if ($line2) {
+        $line2 += " ${white}${ctxPct}${reset}"
+    } else {
+        $line2 = "${white}${ctxPct}${reset}"
+    }
+}
+if ($line2) {
+    $line2 += " ${sep} ${yellow}`$${cost}${reset}"
+} else {
+    $line2 = "${yellow}`$${cost}${reset}"
+}
+if ($sessionTime) {
+    $line2 += " ${sep} ${cyan}${sessionTime}${reset}"
+}
+if ($cachePct -gt 0) {
+    $line2 += " ${dim}cache:${cachePct}%${reset}"
+}
+
+Write-Host "${line1}`n`n${line2}" -NoNewline