diff --git a/README.md b/README.md
index 31af658..d9a6d05 100644
--- a/README.md
+++ b/README.md
@@ -1,39 +1,85 @@
 # ccstatusline-config
 
-Claude Code [ccstatusline](https://github.com/sirmalloc/ccstatusline) 커스텀 설정.
+Claude Code 커스텀 statusline 중앙 관리 저장소.
 
-## 구성
-
-```
-ccstatusline/settings.json  -- 위젯 배치/색상/이모지 설정
-scripts/ctx-bar.sh          -- 컨텍스트 사용량 progress bar
-scripts/ctx-debug.sh        -- 디버그용 (컨텍스트 raw 데이터 출력)
-```
+여러 머신에서 동일한 statusline을 사용하기 위한 설정과 설치 스크립트.
 
 ## 상태바 레이아웃
 
 ```
-🎨 Explanatory | 🖥️ OY-Mac | 🧠 [████████░░░░] 70% | 💰 $4.10
-🤖 Opus 4.6 | 🔑 session-id
-📁 /Users/zaksal58 | ⚡ MCP [ATL:O|SRN:O] | 🕐 11:15
+🎨 Explanatory │ 🖥️ odroidhc4 │ 🧠 [░░░░░░░░░░░░] 0% │ 💰 $0.00        0 tokens
+🤖 ◆ Opus 4.6 │ 🔑 e6271b19 │ 📟 v2.1.49
+📁 /home/user │ 🌿 main │ 📊 ▲+0 ▼-0 │ ⏱️ 9s
+⏵⏵ Explanatory
 ```
 
-## 설치 (복원)
+### 표시 항목
+
+| 라인 | 항목 |
+|------|------|
+| 1 | Output Style, 호스트명, 컨텍스트 사용률 (색상 변화), 비용, 토큰 수 |
+| 2 | 모델 (티어별 심볼: ◆Opus/◇Sonnet/○Haiku), 세션 ID, 버전 |
+| 3 | 작업 디렉토리, Git 브랜치, 추가/삭제 라인 수, 경과 시간 |
+| 4 | 현재 모드, Vim 모드 (사용 시), 에이전트 이름 (팀 모드 시) |
+
+## 설치
+
+### 방법 1: 클론 후 설치
 
 ```bash
-# 1. ccstatusline 설정 복사
-cp ccstatusline/settings.json ~/.config/ccstatusline/settings.json
+git clone https://git.scrutineer.co.kr/zaksal58/ccstatusline-config.git
+cd ccstatusline-config
+./install.sh
+```
 
-# 2. 커스텀 스크립트 복사
-cp scripts/ctx-bar.sh ~/.claude/ctx-bar.sh
-cp scripts/ctx-debug.sh ~/.claude/ctx-debug.sh
-chmod +x ~/.claude/ctx-bar.sh ~/.claude/ctx-debug.sh
+### 방법 2: 원격 설치 (한 줄)
 
-# 3. ctx-bar.sh 경로 수정 (username이 다를 경우)
-# settings.json 내 commandPath를 본인 경로로 변경
+```bash
+curl -sSL https://git.scrutineer.co.kr/zaksal58/ccstatusline-config/raw/branch/main/install.sh | bash
+```
+
+## 업데이트
+
+```bash
+# 방법 1: 클론된 디렉토리에서
+cd ccstatusline-config && git pull && ./install.sh
+
+# 방법 2: 원격 업데이트 (한 줄)
+curl -sSL https://git.scrutineer.co.kr/zaksal58/ccstatusline-config/raw/branch/main/update.sh | bash
+```
+
+## 구조
+
+```
+statusline.sh          -- 메인 statusline 스크립트 (Claude Code 네이티브)
+install.sh             -- 자동 설치 스크립트
+update.sh              -- 원격 업데이트 스크립트
+ccstatusline/          -- (레거시) ccstatusline npm 패키지용 설정
+  settings.json        -- 위젯 배치/색상 설정
+scripts/               -- (레거시) ccstatusline 커스텀 커맨드 스크립트
+  ctx-bar.sh           -- 컨텍스트 사용량 progress bar
+  ctx-debug.sh         -- 디버그용 raw 데이터 출력
 ```
 
 ## 요구사항
 
-- [ccstatusline](https://github.com/sirmalloc/ccstatusline) (npx로 자동 실행)
-- `jq` (context bar에 필요)
+- `jq` (JSON 파싱에 필요)
+- `git` (설치/업데이트에 필요)
+- Claude Code v1.0+
+
+## 동작 방식
+
+Claude Code의 네이티브 `statusLine` 설정을 사용합니다.
+`~/.claude/settings.json`에 다음이 추가됩니다:
+
+```json
+{
+  "statusLine": {
+    "type": "command",
+    "command": "/home/<user>/.claude/statusline.sh",
+    "padding": 0
+  }
+}
+```
+
+스크립트는 Claude Code에서 JSON을 stdin으로 받아 ANSI 색상이 적용된 4줄 상태바를 출력합니다.
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..1feddb4
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,151 @@
+#!/usr/bin/env bash
+# ccstatusline-config installer
+# 어느 머신에서든 한 줄로 설치:
+#   git clone https://git.scrutineer.co.kr/zaksal58/ccstatusline-config.git && cd ccstatusline-config && ./install.sh
+#
+# 또는 원격 설치:
+#   curl -sSL https://git.scrutineer.co.kr/zaksal58/ccstatusline-config/raw/branch/main/install.sh | bash
+
+set -euo pipefail
+
+REPO_URL="https://git.scrutineer.co.kr/zaksal58/ccstatusline-config.git"
+CLAUDE_DIR="${HOME}/.claude"
+STATUSLINE_SCRIPT="${CLAUDE_DIR}/statusline.sh"
+SETTINGS_FILE="${CLAUDE_DIR}/settings.json"
+
+# --- Colors ---
+RED=$'\033[91m'
+GREEN=$'\033[92m'
+YELLOW=$'\033[93m'
+CYAN=$'\033[96m'
+BOLD=$'\033[1m'
+RESET=$'\033[0m'
+
+info()  { echo "${CYAN}[INFO]${RESET} $*"; }
+ok()    { echo "${GREEN}[OK]${RESET} $*"; }
+warn()  { echo "${YELLOW}[WARN]${RESET} $*"; }
+err()   { echo "${RED}[ERROR]${RESET} $*" >&2; }
+
+# --- Dependency check ---
+check_deps() {
+    local missing=()
+    for cmd in jq git; do
+        if ! command -v "$cmd" >/dev/null 2>&1; then
+            missing+=("$cmd")
+        fi
+    done
+    if [ ${#missing[@]} -gt 0 ]; then
+        err "필수 의존성이 없습니다: ${missing[*]}"
+        err "설치 후 다시 실행해주세요."
+        exit 1
+    fi
+}
+
+# --- Determine script source directory ---
+get_script_dir() {
+    # If run from a cloned repo, use local files
+    local dir
+    dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    if [ -f "${dir}/statusline.sh" ]; then
+        echo "$dir"
+        return
+    fi
+    # If run via curl pipe, clone to temp dir
+    local tmpdir
+    tmpdir=$(mktemp -d)
+    info "저장소 클론 중..."
+    git clone --depth 1 "$REPO_URL" "$tmpdir" >/dev/null 2>&1
+    echo "$tmpdir"
+}
+
+# --- Install statusline script ---
+install_statusline() {
+    local src_dir="$1"
+
+    mkdir -p "$CLAUDE_DIR"
+
+    # Backup existing statusline if different
+    if [ -f "$STATUSLINE_SCRIPT" ]; then
+        if ! diff -q "${src_dir}/statusline.sh" "$STATUSLINE_SCRIPT" >/dev/null 2>&1; then
+            local backup="${STATUSLINE_SCRIPT}.bak.$(date +%Y%m%d%H%M%S)"
+            cp "$STATUSLINE_SCRIPT" "$backup"
+            warn "기존 statusline.sh 백업: ${backup}"
+        fi
+    fi
+
+    cp "${src_dir}/statusline.sh" "$STATUSLINE_SCRIPT"
+    chmod +x "$STATUSLINE_SCRIPT"
+    ok "statusline.sh 설치 완료: ${STATUSLINE_SCRIPT}"
+}
+
+# --- Update settings.json ---
+update_settings() {
+    local statusline_entry
+    statusline_entry=$(cat <<JSONEOF
+{
+    "type": "command",
+    "command": "${STATUSLINE_SCRIPT}",
+    "padding": 0
+}
+JSONEOF
+)
+
+    if [ ! -f "$SETTINGS_FILE" ]; then
+        # Create new settings.json with statusLine
+        cat > "$SETTINGS_FILE" <<JSONEOF
+{
+  "statusLine": {
+    "type": "command",
+    "command": "${STATUSLINE_SCRIPT}",
+    "padding": 0
+  }
+}
+JSONEOF
+        ok "settings.json 생성 완료 (statusLine 설정 포함)"
+        return
+    fi
+
+    # Check if statusLine is already configured
+    local existing
+    existing=$(jq -r '.statusLine.command // ""' "$SETTINGS_FILE" 2>/dev/null || echo "")
+
+    if [ "$existing" = "$STATUSLINE_SCRIPT" ]; then
+        ok "settings.json에 statusLine이 이미 올바르게 설정되어 있습니다."
+        return
+    fi
+
+    # Update or add statusLine entry
+    local tmpfile
+    tmpfile=$(mktemp)
+    jq --arg cmd "$STATUSLINE_SCRIPT" '.statusLine = {"type": "command", "command": $cmd, "padding": 0}' "$SETTINGS_FILE" > "$tmpfile"
+    mv "$tmpfile" "$SETTINGS_FILE"
+    ok "settings.json 업데이트 완료 (statusLine 경로: ${STATUSLINE_SCRIPT})"
+}
+
+# --- Main ---
+main() {
+    echo ""
+    echo "${BOLD}${CYAN}╔══════════════════════════════════════╗${RESET}"
+    echo "${BOLD}${CYAN}║  Claude Code Statusline Installer    ║${RESET}"
+    echo "${BOLD}${CYAN}╚══════════════════════════════════════╝${RESET}"
+    echo ""
+
+    check_deps
+
+    local src_dir
+    src_dir=$(get_script_dir)
+
+    install_statusline "$src_dir"
+    update_settings
+
+    echo ""
+    echo "${GREEN}${BOLD}설치 완료!${RESET}"
+    echo ""
+    echo "  Claude Code를 다시 시작하면 새 statusline이 적용됩니다."
+    echo ""
+    echo "  업데이트하려면:"
+    echo "    ${CYAN}cd ${src_dir} && git pull && ./install.sh${RESET}"
+    echo ""
+}
+
+main "$@"
diff --git a/statusline.sh b/statusline.sh
new file mode 100755
index 0000000..711db50
--- /dev/null
+++ b/statusline.sh
@@ -0,0 +1,208 @@
+#!/usr/bin/env bash
+# Claude Code 4-line statusline
+# Reads JSON from stdin, outputs ANSI-colored 4-line status bar
+
+# --- Color definitions (bright variants for dark backgrounds) ---
+RED=$'\033[91m'
+GREEN=$'\033[92m'
+YELLOW=$'\033[93m'
+BLUE=$'\033[94m'
+MAGENTA=$'\033[95m'
+CYAN=$'\033[96m'
+GRAY=$'\033[37m'
+WHITE=$'\033[97m'
+BOLD=$'\033[1m'
+DIM=$'\033[2m'
+RESET=$'\033[0m'
+SEP="${GRAY} │ ${RESET}"
+
+# --- Read all JSON input ---
+input=$(cat)
+
+# --- Single jq call: extract all 16 fields newline-separated ---
+# Using newlines instead of tabs to avoid bash IFS merging consecutive delimiters
+mapfile -t _fields < <(echo "$input" | jq -r '
+  (.model.display_name // .model.id // "?"),
+  (.model.id // "?"),
+  (.context_window.used_percentage // 0 | floor | tostring),
+  (.context_window.context_window_size // 0 | tostring),
+  (.context_window.total_input_tokens // 0 | tostring),
+  (.context_window.total_output_tokens // 0 | tostring),
+  (.cost.total_cost_usd // 0 | . * 100 | floor | . / 100 | tostring),
+  (.cost.total_duration_ms // 0 | tostring),
+  (.cost.total_lines_added // 0 | tostring),
+  (.cost.total_lines_removed // 0 | tostring),
+  (if .session_id == null or .session_id == "" then "--------" else .session_id end),
+  (.version // "?.?.?"),
+  (if .output_style.name == null or .output_style.name == "" then "default" else .output_style.name end),
+  (.workspace.current_dir // "~"),
+  (.vim.mode // ""),
+  (.agent.name // "")
+')
+model_name="${_fields[0]}"
+model_id="${_fields[1]}"
+ctx_pct="${_fields[2]}"
+ctx_size="${_fields[3]}"
+total_in_tok="${_fields[4]}"
+total_out_tok="${_fields[5]}"
+cost="${_fields[6]}"
+dur_ms="${_fields[7]}"
+lines_add="${_fields[8]}"
+lines_rm="${_fields[9]}"
+session_id="${_fields[10]}"
+version="${_fields[11]}"
+style="${_fields[12]}"
+cwd="${_fields[13]}"
+vim_mode="${_fields[14]}"
+agent_name="${_fields[15]}"
+
+# --- Hostname (cached in variable, never changes) ---
+HOSTNAME_SHORT=$(hostname -s 2>/dev/null || echo "unknown")
+
+# --- Context progress bar (12 chars wide) ---
+pct=${ctx_pct:-0}
+filled=$(( pct * 12 / 100 ))
+empty=$(( 12 - filled ))
+
+if [ "$pct" -ge 70 ]; then
+    bar_color="$RED"
+elif [ "$pct" -ge 50 ]; then
+    bar_color="$YELLOW"
+else
+    bar_color="$GREEN"
+fi
+
+bar_filled=""
+bar_empty=""
+for (( i=0; i<filled; i++ )); do bar_filled+="█"; done
+for (( i=0; i<empty; i++ )); do bar_empty+="░"; done
+progress_bar="${bar_color}${bar_filled}${GRAY}${bar_empty}${RESET}"
+pct_display="${bar_color}${pct}%${RESET}"
+
+# --- Cost color ---
+cost_val=${cost:-0}
+# Compare using awk for floating-point
+cost_display=$(awk -v c="$cost_val" '
+BEGIN {
+    if (c+0 >= 5) col="\033[91m";
+    else if (c+0 >= 2) col="\033[93m";
+    else col="\033[92m";
+    printf "%s$%.2f\033[0m", col, c+0
+}')
+
+# --- Token formatting ---
+format_tokens() {
+    local tok=$1
+    if [ "$tok" -ge 1000000 ] 2>/dev/null; then
+        echo "$(( tok / 1000000 ))M"
+    elif [ "$tok" -ge 1000 ] 2>/dev/null; then
+        echo "$(( tok / 1000 ))k"
+    else
+        echo "${tok}"
+    fi
+}
+
+in_tok_display=$(format_tokens "${total_in_tok:-0}")
+
+# --- Model tier symbol ---
+case "$model_id" in
+    *opus*)   tier_sym="${MAGENTA}${BOLD}◆${RESET}"; model_color="${MAGENTA}${BOLD}" ;;
+    *sonnet*) tier_sym="${BLUE}${BOLD}◇${RESET}"; model_color="${BLUE}${BOLD}" ;;
+    *haiku*)  tier_sym="${GREEN}${BOLD}○${RESET}"; model_color="${GREEN}${BOLD}" ;;
+    *)        tier_sym="${GRAY}●${RESET}"; model_color="${GRAY}" ;;
+esac
+
+# --- Session ID (first 8 chars) ---
+session_short="${session_id:0:8}"
+
+# --- Duration formatting ---
+dur_total_sec=$(( ${dur_ms:-0} / 1000 ))
+if [ "$dur_total_sec" -ge 3600 ]; then
+    dur_h=$(( dur_total_sec / 3600 ))
+    dur_m=$(( (dur_total_sec % 3600) / 60 ))
+    dur_display="${dur_h}h ${dur_m}m"
+elif [ "$dur_total_sec" -ge 60 ]; then
+    dur_m=$(( dur_total_sec / 60 ))
+    dur_s=$(( dur_total_sec % 60 ))
+    dur_display="${dur_m}m ${dur_s}s"
+else
+    dur_display="${dur_total_sec}s"
+fi
+
+# --- Git branch (cached with 5s TTL) ---
+CACHE_FILE="/tmp/claude-statusline-git-cache"
+NOW=$(date +%s)
+GIT_BRANCH=""
+if [ -f "$CACHE_FILE" ]; then
+    CACHE_AGE=$(( NOW - $(stat -c %Y "$CACHE_FILE" 2>/dev/null || stat -f %m "$CACHE_FILE" 2>/dev/null || echo 0) ))
+    if [ "$CACHE_AGE" -lt 5 ]; then
+        GIT_BRANCH=$(cat "$CACHE_FILE")
+    fi
+fi
+if [ -z "$GIT_BRANCH" ]; then
+    GIT_BRANCH=$(cd "${cwd:-$HOME}" 2>/dev/null && git symbolic-ref --short HEAD 2>/dev/null || echo "")
+    echo "$GIT_BRANCH" > "$CACHE_FILE"
+fi
+
+# ============================================================
+# LINE 1: Identity & Resources
+# ============================================================
+line1="\xf0\x9f\x8e\xa8 ${WHITE}${style}${RESET}"
+line1+="${SEP}"
+line1+="\xf0\x9f\x96\xa5\xef\xb8\x8f ${CYAN}${BOLD}${HOSTNAME_SHORT}${RESET}"
+line1+="${SEP}"
+line1+="\xf0\x9f\xa7\xa0 [${progress_bar}] ${pct_display}"
+line1+="${SEP}"
+line1+="\xf0\x9f\x92\xb0 ${cost_display}"
+line1+="                    ${GRAY}${in_tok_display} tokens${RESET}"
+
+# ============================================================
+# LINE 2: Model & Session
+# ============================================================
+line2="\xf0\x9f\xa4\x96 ${tier_sym} ${model_color}${model_name}${RESET}"
+line2+="${SEP}"
+line2+="\xf0\x9f\x94\x91 ${GRAY}${session_short}${RESET}"
+line2+="${SEP}"
+line2+="\xf0\x9f\x93\x9f ${CYAN}v${version}${RESET}"
+
+# ============================================================
+# LINE 3: Workspace & Tools
+# ============================================================
+line3="\xf0\x9f\x93\x81 ${CYAN}${cwd}${RESET}"
+if [ -n "$GIT_BRANCH" ]; then
+    line3+="${SEP}"
+    line3+="\xf0\x9f\x8c\xbf ${GREEN}${BOLD}${GIT_BRANCH}${RESET}"
+fi
+line3+="${SEP}"
+line3+="\xf0\x9f\x93\x8a ${GREEN}▲+${lines_add}${RESET} ${RED}▼-${lines_rm}${RESET}"
+line3+="${SEP}"
+line3+="\xe2\x8f\xb1\xef\xb8\x8f ${YELLOW}${dur_display}${RESET}"
+
+# ============================================================
+# LINE 4: Mode & Status (conditional)
+# ============================================================
+line4="\xe2\x8f\xb5\xe2\x8f\xb5 ${BOLD}${style}${RESET}"
+
+if [ -n "$vim_mode" ]; then
+    vim_upper=$(echo "$vim_mode" | tr '[:lower:]' '[:upper:]')
+    case "$vim_upper" in
+        NORMAL) vim_color="$BLUE" ;;
+        INSERT) vim_color="$GREEN" ;;
+        *)      vim_color="$WHITE" ;;
+    esac
+    line4+="${SEP}"
+    line4+="\xf0\x9f\x94\xb2 ${vim_color}${vim_upper}${RESET}"
+fi
+
+if [ -n "$agent_name" ]; then
+    line4+="${SEP}"
+    line4+="\xf0\x9f\x8f\xb7\xef\xb8\x8f ${MAGENTA}${agent_name}${RESET}"
+fi
+
+# ============================================================
+# Output all 4 lines
+# ============================================================
+printf '%b\n' "$line1"
+printf '%b\n' "$line2"
+printf '%b\n' "$line3"
+printf '%b\n' "$line4"
diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..778941f
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# ccstatusline-config updater
+# 원격 저장소에서 최신 statusline을 가져와 설치합니다.
+#
+# 사용법:
+#   ~/.claude/update-statusline.sh
+#
+# 또는 원격 실행:
+#   curl -sSL https://git.scrutineer.co.kr/zaksal58/ccstatusline-config/raw/branch/main/update.sh | bash
+
+set -euo pipefail
+
+REPO_URL="https://git.scrutineer.co.kr/zaksal58/ccstatusline-config.git"
+CLAUDE_DIR="${HOME}/.claude"
+STATUSLINE_SCRIPT="${CLAUDE_DIR}/statusline.sh"
+
+GREEN=$'\033[92m'
+CYAN=$'\033[96m'
+YELLOW=$'\033[93m'
+BOLD=$'\033[1m'
+RESET=$'\033[0m'
+
+info()  { echo "${CYAN}[INFO]${RESET} $*"; }
+ok()    { echo "${GREEN}[OK]${RESET} $*"; }
+warn()  { echo "${YELLOW}[WARN]${RESET} $*"; }
+
+tmpdir=$(mktemp -d)
+trap 'rm -rf "$tmpdir"' EXIT
+
+info "최신 statusline 가져오는 중..."
+git clone --depth 1 "$REPO_URL" "$tmpdir" >/dev/null 2>&1
+
+if diff -q "${tmpdir}/statusline.sh" "$STATUSLINE_SCRIPT" >/dev/null 2>&1; then
+    ok "이미 최신 버전입니다."
+    exit 0
+fi
+
+cp "${tmpdir}/statusline.sh" "$STATUSLINE_SCRIPT"
+chmod +x "$STATUSLINE_SCRIPT"
+ok "statusline.sh 업데이트 완료!"
+echo "  Claude Code를 다시 시작하면 적용됩니다."