diff --git a/.agents/skills/lib.sh b/.agents/skills/lib.sh
index 4a8dd8d..2c21ffb 100644
--- a/.agents/skills/lib.sh
+++ b/.agents/skills/lib.sh
@@ -44,75 +44,172 @@ _TMUX_SKILLS_BIN_PATTERN="${_TMUX_SKILLS_BIN_PATTERN:-/.agents/skills/.bin}"
 TMUX_SERVER_NAME="${TMUX_SERVER_NAME:-default}"
 
 _resolve_real_tmux_path() {
-  if [ -z "${_REAL_TMUX_PATH:-}" ] || [[ "$_REAL_TMUX_PATH" == *"${_TMUX_SHIM_DIR_PATTERN}"* ]] || [[ "$_REAL_TMUX_PATH" == *"${_TMUX_SKILLS_BIN_PATTERN}"* ]]; then
-    local dir save_ifs="$IFS"
-    _REAL_TMUX_PATH=""
-    IFS=:
-    for dir in $PATH; do
-      if [[ "$dir" != *"${_TMUX_SHIM_DIR_PATTERN}"* ]] && [[ "$dir" != *"${_TMUX_SKILLS_BIN_PATTERN}"* ]] && [ -x "$dir/tmux" ]; then
-        _REAL_TMUX_PATH="$dir/tmux"
-        break
-      fi
-    done
-    IFS="$save_ifs"
-    if [ -z "$_REAL_TMUX_PATH" ]; then
-      _REAL_TMUX_PATH="tmux"
-    fi
-    export _REAL_TMUX_PATH
-  fi
+  _REAL_TMUX_PATH="tmux"
+  export _REAL_TMUX_PATH
 }
 
 _init_tmux_isolation() {
-  _resolve_real_tmux_path
-  if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-    local wrapper_dir="${TMPDIR:-/tmp}${_TMUX_SHIM_DIR_PATTERN}${TMUX_SERVER_NAME}"
-    if [[ ":$PATH:" != *":$wrapper_dir:"* ]]; then
-      mkdir -p "$wrapper_dir"
-      cat <<EOF > "$wrapper_dir/tmux"
+  local wrapper_dir="$WORKSPACE_ROOT/.mam/shim"
+  mkdir -p "$wrapper_dir"
+  cat <<'EOF' > "$wrapper_dir/tmux"
 #!/usr/bin/env bash
-if [ -z "\${TMUX_SERVER_NAME:-}" ] || [ "\$TMUX_SERVER_NAME" = "default" ]; then
-  exec "$_REAL_TMUX_PATH" "\$@"
-else
-  exec "$_REAL_TMUX_PATH" -L "\$TMUX_SERVER_NAME" "\$@"
+# Herdr-to-Tmux translation shim wrapper
+set -euo pipefail
+
+wrapper_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+cmd="${1:-}"
+if [ -z "$cmd" ]; then
+  echo "tmux shim: no command specified" >&2
+  exit 1
 fi
-EOF
-      chmod +x "$wrapper_dir/tmux"
-      export PATH="$wrapper_dir:$PATH"
-    fi
-  else
-    # 격리 비활성화 시 shim 자동 cleanup (PATH에서 제거)
-    local new_path="" dir save_ifs="$IFS"
-    IFS=:
-    for dir in $PATH; do
-      if [[ "$dir" != *"${_TMUX_SHIM_DIR_PATTERN}"* ]] && [[ "$dir" != *"${_TMUX_SKILLS_BIN_PATTERN}"* ]]; then
-        if [ -z "$new_path" ]; then
-          new_path="$dir"
-        else
-          new_path="$new_path:$dir"
-        fi
-      fi
+shift
+
+case "$cmd" in
+  has-session)
+    sess=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        *) shift ;;
+      esac
     done
-    IFS="$save_ifs"
-    export PATH="$new_path"
+    herdr agent get "$sess" >/dev/null 2>&1
+    ;;
+  new-session)
+    name="" ws="" run_cmd=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -s) name="$2"; shift 2 ;;
+        -c) ws="$2"; shift 2 ;;
+        -d|-x|-y) shift ;;
+        *) run_cmd="$1"; shift ;;
+      esac
+    done
+    herdr workspace create --label "${TMUX_SERVER_NAME:-default}" --cwd "${ws:-.}" >/dev/null 2>&1 || true
+    # herdr agent start name workspace cwd argv
+    herdr agent start "$name" --workspace "${TMUX_SERVER_NAME:-default}" --cwd "${ws:-.}" -- $run_cmd
+    ;;
+  kill-session)
+    sess=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        *) shift ;;
+      esac
+    done
+    herdr session stop "$sess" >/dev/null 2>&1 || true
+    herdr session delete "$sess" >/dev/null 2>&1 || true
+    ;;
+  list-panes)
+    sess="" format=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        -F) format="$2"; shift 2 ;;
+        *) shift ;;
+      esac
+    done
+    info=$(herdr agent get "$sess" 2>/dev/null || true)
+    if [ -n "$info" ]; then
+      if [ "$format" = '#{pane_pid}|#{pane_current_path}|#{pane_current_command}' ]; then
+        python3 -c "
+import sys, json
+try:
+    d = json.loads(sys.stdin.read())
+    p = d.get('pane', d)
+    print(f\"{p.get('pid', '')}|{p.get('cwd', '')}|{p.get('command', p.get('argv', ''))}\")
+except Exception:
+    pass
+" <<< "$info"
+      elif [ "$format" = '#{pane_pid}' ]; then
+        python3 -c "import sys, json; d = json.loads(sys.stdin.read()); print(d.get('pane', d).get('pid', ''))" <<< "$info"
+      elif [ "$format" = '#{pane_current_path}' ]; then
+        python3 -c "import sys, json; d = json.loads(sys.stdin.read()); print(d.get('pane', d).get('cwd', ''))" <<< "$info"
+      elif [ "$format" = '#{pane_current_command}' ]; then
+        python3 -c "import sys, json; d = json.loads(sys.stdin.read()); print(d.get('pane', d).get('command', d.get('pane', d).get('argv', '')))" <<< "$info"
+      fi
+    fi
+    ;;
+  capture-pane)
+    sess=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        *) shift ;;
+      esac
+    done
+    herdr agent read "$sess" --source visible --lines 100 2>/dev/null || true
+    ;;
+  send-keys)
+    sess="" key=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        *) key="$1"; shift ;;
+      esac
+    done
+    if [ "$key" = "C-m" ] || [ "$key" = "Enter" ]; then
+      key="Enter"
+    fi
+    herdr pane send-keys "$sess" "$key" >/dev/null 2>&1 || true
+    ;;
+  set-buffer)
+    text=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -b) buf="$2"; shift 2 ;;
+        *) text="$1"; shift ;;
+      esac
+    done
+    echo -n "$text" > "$wrapper_dir/tmp_buffer"
+    ;;
+  paste-buffer)
+    sess=""
+    while [ $# -gt 0 ]; do
+      case "$1" in
+        -t) sess="$2"; shift 2 ;;
+        *) shift ;;
+      esac
+    done
+    if [ -f "$wrapper_dir/tmp_buffer" ]; then
+      herdr agent send "$sess" "$(cat "$wrapper_dir/tmp_buffer")" >/dev/null 2>&1 || true
+    fi
+    ;;
+  delete-buffer)
+    rm -f "$wrapper_dir/tmp_buffer"
+    ;;
+  ls)
+    herdr session list --json 2>/dev/null | python3 -c "
+import sys, json
+try:
+    for s in json.load(sys.stdin):
+        print(f\"{s['name']}|{s.get('created_at_epoch', 0)}\")
+except Exception:
+    pass
+" || true
+    ;;
+  *)
+    true
+    ;;
+esac
+EOF
+  chmod +x "$wrapper_dir/tmux"
+  if [[ ":$PATH:" != *":$wrapper_dir:"* ]]; then
+    export PATH="$wrapper_dir:$PATH"
   fi
 }
 
 mam_tmux() {
-  _resolve_real_tmux_path
-  if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-    "$_REAL_TMUX_PATH" -L "$TMUX_SERVER_NAME" "$@"
-  else
-    "$_REAL_TMUX_PATH" "$@"
-  fi
+  _init_tmux_isolation
+  "$WORKSPACE_ROOT/.mam/shim/tmux" "$@"
 }
 
 _tmux() {
-  _init_tmux_isolation
   mam_tmux "$@"
 }
 
 tmux() {
-  _tmux "$@"
+  mam_tmux "$@"
 }
 
 # ---------------------------------------------------------------------------
@@ -1239,3 +1336,6 @@ handle_startup_dialogs() {
   done
   return 0
 }
+
+# Auto-initialize the herdr translation shim wrapper on library source
+_init_tmux_isolation
diff --git a/.agents/skills/multi-agent-mux-create/scripts/create_session.sh b/.agents/skills/multi-agent-mux-create/scripts/create_session.sh
index c0b19f7..e0d1db5 100755
--- a/.agents/skills/multi-agent-mux-create/scripts/create_session.sh
+++ b/.agents/skills/multi-agent-mux-create/scripts/create_session.sh
@@ -79,7 +79,7 @@ fi
 [ -n "$AGENT" ]    || { echo "ERROR: --agent required" >&2; usage; exit 2; }
 [ -n "$ROLE" ]     || { echo "ERROR: --role required" >&2; usage; exit 2; }
 [ -d "$WORKSPACE" ] || { echo "ERROR: workspace $WORKSPACE not a directory" >&2; exit 1; }
-command -v tmux >/dev/null || { echo "ERROR: tmux not installed" >&2; exit 1; }
+command -v herdr >/dev/null || { echo "ERROR: herdr not installed" >&2; exit 1; }
 command -v "$AGENT" >/dev/null || { echo "ERROR: $AGENT CLI not in PATH" >&2; exit 1; }
 
 # Auth Check (OAuth check for agy, loggedIn check for claude, status for hermes)
@@ -231,23 +231,7 @@ TMUX_EPOCH=$(date +%s)
 NOW_ISO=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
 
 # 시작 명령 (CMD_FULL 은 spawn 전에 isolation 디스패치를 반영해 확정됨 — T4)
-local_tmux="tmux"
-if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-  local_tmux="tmux -L $TMUX_SERVER_NAME"
-fi
-
-case "$AGENT" in
-  claude)
-    if [ "$ISOLATE" != "1" ] && [ -x "$WRAPPER" ]; then
-      START_CMD="$WRAPPER   # ~/.local/bin 의 래퍼"
-    else
-      START_CMD="$local_tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    fi
-    ;;
-  agy|hermes|cline)
-    START_CMD="$local_tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    ;;
-esac
+START_CMD="herdr agent start \"$SESSION_NAME\" --workspace \"${TMUX_SERVER_NAME:-default}\" --cwd \"$WORKSPACE\" -- $CMD_FULL"
 
 # If --onboard is specified, automatically build the onboarding prompt
 if [ "$ONBOARD" = "1" ] && [ -z "$SUBMIT_JOB_PROMPT" ]; then
@@ -332,8 +316,8 @@ entry = {
         'cwd': os.environ['PANE_CWD'],
     },
     'start_command': os.environ['START_CMD'],
-    'attach_command': f'tmux {server_opt}attach -t {name}',
-    'kill_command': f'tmux {server_opt}kill-session -t {name}',
+    'attach_command': f'herdr session attach {name}',
+    'kill_command': f'herdr session stop {name} && herdr session delete {name}',
 }
 
 # T5: isolation 블록 영속화 (all-L2) — resume/resolve/stop 이 재적용의 단일 소스로 사용
@@ -421,10 +405,6 @@ fi
 trap - EXIT
 echo "agent-sessions.yaml updated"
 echo
-if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-  echo "Attach:  tmux -L $TMUX_SERVER_NAME attach -t $SESSION_NAME"
-else
-  echo "Attach:  tmux attach -t $SESSION_NAME"
-fi
+echo "Attach:  herdr session attach $SESSION_NAME"
 echo "Delete:  use multi-agent-mux-stop skill"
 echo "Resume:  use multi-agent-mux-resume skill (after first message creates a session id)"
diff --git a/.agents/skills/multi-agent-mux-resume/scripts/resume_session.sh b/.agents/skills/multi-agent-mux-resume/scripts/resume_session.sh
index 294d663..f5a8ac2 100755
--- a/.agents/skills/multi-agent-mux-resume/scripts/resume_session.sh
+++ b/.agents/skills/multi-agent-mux-resume/scripts/resume_session.sh
@@ -120,22 +120,13 @@ if [ -n "$ISO_ARGS" ]; then
   CMD_FULL="$CMD_FULL $ISO_ARGS"
 fi
 
-# 4. Spawn new tmux session + run agent with the saved id
-case "$AGENT" in
-  claude)
-    if [ -z "$ISO_ROOT" ] && [ -x "$HOME/.local/bin/canary-projects-multi-agent-mux-creator-claude" ]; then
-      START_CMD="tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$HOME/.local/bin/canary-projects-multi-agent-mux-creator-claude\""
-    else
-      START_CMD="tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    fi
-    eval "$START_CMD"
-    # auto-handle trust / bypass dialogs
-    handle_startup_dialogs "$SESSION_NAME" 20
-    ;;
-  agy|hermes|cline)
-    eval "tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    ;;
-esac
+# 4. Spawn new agent session via herdr
+herdr workspace create --label "${TMUX_SERVER_NAME:-default}" --cwd "$WORKSPACE" >/dev/null 2>&1 || true
+herdr agent start "$SESSION_NAME" --workspace "${TMUX_SERVER_NAME:-default}" --cwd "$WORKSPACE" -- $CMD_FULL
+if [ "$AGENT" = "claude" ]; then
+  # auto-handle trust / bypass dialogs
+  handle_startup_dialogs "$SESSION_NAME" 20
+fi
 
 # Wait for TUI readiness or let it settle
 sleep 2
diff --git a/.agents/skills/multi-agent-mux-status/scripts/status.sh b/.agents/skills/multi-agent-mux-status/scripts/status.sh
index f8005c9..26300fd 100755
--- a/.agents/skills/multi-agent-mux-status/scripts/status.sh
+++ b/.agents/skills/multi-agent-mux-status/scripts/status.sh
@@ -189,9 +189,9 @@ def get_job_status(s):
 
 
 sessions = d.get('tmux_sessions', [])
-print(f"agent-sessions status — {drift['timestamp']}  (tmux_confirmed={drift['tmux_confirmed']})")
+print(f"agent-sessions status — {drift['timestamp']}  (herdr_confirmed={drift['tmux_confirmed']})")
 print("=" * 136)
-print(f"{'NAME':<44} {'SERVER':<12} {'YAML':<10} {'TMUX':<6} {'CMD':<6} {'RESUME':<8} {'JOB_ID':<10} {'JOB_STATUS':<12} DRIFT")
+print(f"{'NAME':<44} {'WORKSPACE':<12} {'YAML':<10} {'HERDR':<6} {'CMD':<6} {'RESUME':<8} {'JOB_ID':<10} {'JOB_STATUS':<12} DRIFT")
 print("-" * 136)
 if not sessions:
     print("(no sessions registered)")
@@ -199,12 +199,12 @@ for s in sessions:
     name = s.get('name', '?')
     server = s.get('tmux_server') or 'default'
     status = s.get('status', '?')
-    tmux = 'alive' if f"{name}|{server}" in alive else 'dead'
+    herdr = 'alive' if f"{name}|{server}" in alive else 'dead'
     cmd = (s.get('pane') or {}).get('cmd', '?')
     res = resume_on_disk(s)
     jid, jstatus = get_job_status(s)
     drs = ','.join(drift_by_name.get(name, [])) or '-'
-    print(f"{name:<44} {server:<12} {status:<10} {tmux:<6} {cmd:<6} {res:<8} {jid:<10} {jstatus:<12} {drs}")
+    print(f"{name:<44} {server:<12} {status:<10} {herdr:<6} {cmd:<6} {res:<8} {jid:<10} {jstatus:<12} {drs}")
 # drifts not tied to a registered row (e.g. class B unregistered, class D cache)
 known = {s.get('name') for s in sessions}
 extra = [dr for dr in drift.get('drifts', []) if dr['name'] not in known]
@@ -213,5 +213,5 @@ if extra:
     for dr in extra:
         print(f"  [{dr['class']}] {dr['msg']}")
 print("=" * 136)
-print(f"alive tmux: {sorted(alive)}")
+print(f"alive herdr: {sorted(alive)}")
 PYEOF
diff --git a/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh b/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
index ff6fefb..91dd74d 100755
--- a/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
+++ b/.agents/skills/multi-agent-mux-stop/scripts/stop_session.sh
@@ -201,9 +201,9 @@ if [ "$PURGE" = "1" ] && [ "$TMUX_ALIVE" = "1" ]; then
   if tmux has-session -t "$SESSION_NAME" 2>/dev/null; then
     echo "ERROR: session '$SESSION_NAME' is still alive after the kill chain." >&2
     echo "  Refusing registry removal — records preserved (no state was modified)." >&2
-    echo "  Diagnose the stuck TUI (tmux attach -t '$SESSION_NAME'), then re-run" >&2
+    echo "  Diagnose the stuck TUI (herdr session attach '$SESSION_NAME'), then re-run" >&2
     echo "  stop_session.sh --purge-conversation --yes (retry is safe/idempotent)." >&2
-    delegate_publish_event "$DELEGATE_JOB_ID" error "purge aborted: tmux session still alive"
+    delegate_publish_event "$DELEGATE_JOB_ID" error "purge aborted: herdr session still alive"
     exit 4
   fi
 fi
diff --git a/deploy/INSTALL.md b/deploy/INSTALL.md
index 2ba3abf..d75c6fb 100644
--- a/deploy/INSTALL.md
+++ b/deploy/INSTALL.md
@@ -8,7 +8,7 @@ MAM은 단일 워크스페이스 상에서 복수의 에이전트(Claude, Cline,
 
 ## 1. ⚙️ 사전 요구사항
 MAM 스킬 및 스크립트들은 호스트 시스템의 다음 도구들에 의존합니다. 설치 전에 확인해 주세요.
-*   **tmux**: 에이전트를 백그라운드 격리 Pane에서 구동하기 위한 프로세스 컨테이너
+*   **herdr**: 에이전트를 백그라운드 격리 Pane/Workspace에서 구동 및 관제하기 위한 프로세스 컨테이너
 *   **python3**: 세션 레지스트리(YAML/SQLite DB) 파싱 및 유효성 검사 (내장 `sqlite3` 모듈 필수)
 *   **uuidgen**: 격리 세션 생성 시 고유의 UUID 할당
 *   **rsync**: 인스톨러(`deploy/install_mam.sh`)가 `.agents/` 오케스트레이터 및 스킬 폴더를 타겟 프로젝트에 복제하는 데 사용 (설치 시 필요)
@@ -54,14 +54,14 @@ $ bash .agents/skills/multi-agent-mux-create/scripts/create_session.sh \
     --role developer \
     --session my-project-dev-claude \
     --isolate \
-    --tmux-server multi-agent-mux
+    --herdr-workspace multi-agent-mux
 ```
 *   `--isolate` 옵션을 주면 `.mam/agent_homes/<uuid>/` 하위에 로그인 및 설정은 유지하되 대화 내역은 격리되는 홈이 형성됩니다.
 
 ### 2) 세션 접속 (Attach)
-백그라운드에서 구동된 에이전트 TUI 화면에 들어갑니다. (세션 생성 시 지정한 독립 격리 tmux 서버 소켓 `-L multi-agent-mux` 를 경유해 접속합니다.)
+백그라운드에서 구동된 에이전트 TUI 화면에 들어갑니다.
 ```bash
-$ tmux -L multi-agent-mux attach -t my-project-dev-claude
+$ herdr session attach my-project-dev-claude
 ```
 *   **화면 탈출**: 대화 중 세션을 유지한 채 터미널로 돌아오려면 `Ctrl + B`를 누른 뒤 `D` 키를 차례로 입력합니다.
 
@@ -81,8 +81,8 @@ $ [ -n "$UUID" ] || { echo "[ERROR] 매칭되는 활성 세션 이력이 없습
  
 # 2단계: 세션 재기동 (이전 대화 컨텍스트 복원 기동)
 # (주의: 만약 create 시 격리(--isolate) 세션으로 생성했다면, CLAUDE_CONFIG_DIR 환경변수를 YAML에 기록된 isolation.root 경로로 지정하여 띄워야 합니다. 상세 격리 복원 커맨드는 .agents/skills/multi-agent-mux-resume/SKILL.md 문서를 필독해 주세요.)
-$ tmux -L multi-agent-mux new-session -d -s "$SESSION_NAME" -x 140 -y 40 -c "$WORKSPACE" \
-    "claude --dangerously-skip-permissions -r $UUID; echo 'CLAUDE EXIT'; bash"
+$ herdr run -d --name "$SESSION_NAME" --workspace "$WORKSPACE" -- \
+    "claude --dangerously-skip-permissions -r $UUID"
  
 # 3단계: 레지스트리 세션 상태를 running 으로 동기화 갱신
 $ bash .agents/skills/multi-agent-mux-resume/scripts/update_yaml_resumed.sh \
diff --git a/deploy/install_mam.sh b/deploy/install_mam.sh
index 133fb76..ec7db8f 100755
--- a/deploy/install_mam.sh
+++ b/deploy/install_mam.sh
@@ -83,7 +83,7 @@ fi
 
 # 1. Dependency Checks
 log_info "Verifying host dependencies..."
-DEPS=(tmux python3 rsync uuidgen)
+DEPS=(herdr python3 rsync uuidgen)
 MISSING_DEPS=()
 for dep in "${DEPS[@]}"; do
   if ! command -v "$dep" &>/dev/null; then
@@ -93,6 +93,10 @@ done
 
 if [ ${#MISSING_DEPS[@]} -ne 0 ]; then
   log_error "Missing required dependencies: ${MISSING_DEPS[*]}"
+  if [[ " ${MISSING_DEPS[*]} " == *" herdr "* ]]; then
+    log_error "To install herdr, please refer to the official installation guide:"
+    log_error "  curl -fsSL https://herdr.dev/install.sh | sh"
+  fi
   log_error "Please install them before using MAM."
   exit 1
 fi