diff --git a/bin/box-ctl.py b/bin/box-ctl.py
index 0d9f938..eb806bb 100755
--- a/bin/box-ctl.py
+++ b/bin/box-ctl.py
@@ -41,7 +41,9 @@ DM_LOG = NETVM_ROOT / "dm-log.jsonl"
 WATCHDOG_STATE = NETVM_ROOT / "main-chat-watchdog.state"
 
 NAME_RE = re.compile(r"^[a-z0-9-]{1,64}$")
-VALID_AGENTS = {"muse", "pip", "646", "opm"}
+VALID_AGENTS = {"muse", "pip", "646", "opm", "dev", "def"}
+THREAD_RE = re.compile(r"^[A-Za-z0-9-]{1,64}$")
+THREAD_OPS = ("list", "pin", "unpin", "archive", "unarchive")
 
 # Default sidechat per agent for `box notify`. Mirrors super-cli.py
 # DEFAULT_AGENT_SIDECHATS (kept in sync manually; super-cli is the
@@ -1216,6 +1218,14 @@ loop actions:
   loop-resolve <dm_id> [note]
   loop-remediate [--dry-run]
 
+thread actions (muse-cli gateway; hyphenated aliases for `thread <sub>`):
+  thread-list --agent <agent> [--limit N]
+  thread-pin --agent <agent> --thread <id>
+  thread-unpin --agent <agent> --thread <id>
+  thread-archive --agent <agent> --thread <id> --confirm
+  thread-unarchive --agent <agent> --thread <id>
+  thread-rename --agent <agent> --thread <id> --title <title>
+
 notify:
   notify <agent> <message> [--sidechat <name>] [--allow-main-chat]
     Send a DM to an agent's default sidechat (never main chat unless
@@ -1224,7 +1234,74 @@ notify:
 policy:
   policy                  chat policy version, rule, and compliance summary
   policy check <agent>    per-agent compliance detail
-  policy show             print the full CHAT_POLICY.md"""
+  policy show             print the full CHAT_POLICY.md
+
+thread actions (muse-cli gateway):
+  thread list <agent> [--limit N]
+  thread pin <agent> <thread-id>
+  thread unpin <agent> <thread-id>
+  thread archive <agent> <thread-id> --confirm
+  thread unarchive <agent> <thread-id>"""
+
+
+def act_thread(op, agent, thread=None, title=None, limit=None, confirm=False):
+    """Thread bookkeeping via bin/muse-threads.py (hybrid gateway).
+
+    ops: list | pin | unpin | archive | unarchive | rename
+    archive requires confirm=True (the --confirm flag; BatchMode SSH
+    cannot prompt, so the flag is the explicit confirmation).
+    """
+    if op not in ("list", "pin", "unpin", "archive", "unarchive", "rename"):
+        fail("BAD_NAME", "usage: thread list|pin|unpin|archive|unarchive|rename <agent> [args]")
+    if agent not in VALID_AGENTS:
+        fail("BAD_NAME", f"agent must be one of {sorted(VALID_AGENTS)}")
+    if op == "list":
+        audit("thread-list-" + agent)
+    else:
+        if not thread or not THREAD_RE.match(thread):
+            fail("BAD_NAME", "thread id must match ^[A-Za-z0-9-]{1,64}$",
+                 {"field": "thread", "value": thread})
+        if op == "archive" and not confirm:
+            fail("CONFIRM_REQUIRED",
+                 "archive is a visible side effect -- pass --confirm to proceed",
+                 {"would_archive": {"agent": agent, "thread": thread}})
+        if op == "rename" and not title:
+            fail("BAD_NAME", "rename requires a title")
+        audit("thread-" + op, f"{agent}/{thread}")
+    helper = os.path.join(os.path.dirname(os.path.abspath(__file__)), "muse-threads.py")
+    cmd = [sys.executable, helper, op, "--agent", agent]
+    if thread:
+        cmd += ["--thread", thread]
+    if title:
+        cmd += ["--title", title]
+    try:
+        p = subprocess.run(cmd, capture_output=True, text=True, timeout=120)
+    except subprocess.TimeoutExpired:
+        fail("GATEWAY_UNAVAILABLE", f"muse-threads.py timed out (op={op})")
+    except OSError as e:
+        fail("GATEWAY_UNAVAILABLE", f"cannot run muse-threads.py: {e}")
+    # Helper prints one JSON object; relay it, applying --limit for list
+    if p.returncode == 0:
+        raw = p.stdout.strip()
+        if limit is not None and op == "list" and raw:
+            try:
+                data = json.loads(raw)
+                if isinstance(data.get("threads"), list):
+                    data["threads"] = data["threads"][:limit]
+                print(json.dumps(data))
+                return
+            except ValueError:
+                pass
+        print(raw if raw else '{"ok": true}')
+        return
+    # Failure: try to extract the helper's JSON error, else wrap
+    try:
+        err = json.loads(p.stdout.strip() or "{}")
+        fail(err.get("code", "GATEWAY_ERROR"), err.get("error", "thread op failed"),
+             err.get("detail"))
+    except (ValueError, AttributeError):
+        fail("GATEWAY_ERROR", f"thread {op} failed",
+             (p.stderr.strip() or p.stdout.strip())[:300])
 
 
 def main(argv):
@@ -1374,6 +1451,30 @@ def main(argv):
     elif action == "loop-remediate":
         dry = "--dry-run" in rest
         act_loop_remediate(dry_run=dry)
+    elif action in ("thread-list", "thread-pin", "thread-unpin",
+                     "thread-archive", "thread-unarchive", "thread-rename"):
+        op = action[len("thread-"):]
+        agent = None
+        thread = None
+        title = None
+        idx = 0
+        while idx < len(rest):
+            if rest[idx] == "--agent" and idx + 1 < len(rest):
+                agent = rest[idx + 1]
+                idx += 2
+            elif rest[idx] == "--thread" and idx + 1 < len(rest):
+                thread = rest[idx + 1]
+                idx += 2
+            elif rest[idx] == "--title" and idx + 1 < len(rest):
+                title = rest[idx + 1]
+                idx += 2
+            else:
+                idx += 1
+        if not agent:
+            fail("BAD_NAME", f"usage: {action} --agent <agent> [--thread <id>] [--title <title>]")
+        if op in ("pin", "unpin", "archive", "unarchive", "rename") and not thread:
+            fail("BAD_NAME", f"usage: {action} --agent <agent> --thread <id> [--title <title>]")
+        act_thread(op, agent, thread, title)
     elif action == "notify":
         # notify <agent> <message> [--sidechat <name>] [--allow-main-chat]
         args = list(rest)
@@ -1437,6 +1538,78 @@ def main(argv):
         if args:
             fail("BAD_ARGS", "usage: main-loop %s [--agent <name>]" % sub)
         act_main_loop(sub, agent)
+    elif action == "thread":
+        if not rest or rest[0] not in THREAD_OPS:
+            fail("BAD_NAME", "usage: thread list|pin|unpin|archive|unarchive <agent> [args]")
+        sub = rest[0]
+        args = rest[1:]
+        if not args:
+            fail("BAD_NAME", f"usage: thread {sub} <agent> [...]")
+        agent = args[0]
+        args = args[1:]
+        thread_id = None
+        limit = None
+        confirm = "--confirm" in args
+        args = [a for a in args if a != "--confirm"]
+        if confirm and sub != "archive":
+            fail("BAD_ARGS", "--confirm only applies to thread archive")
+        idx = 0
+        while idx < len(args):
+            if args[idx] == "--limit" and idx + 1 < len(args):
+                try:
+                    limit = int(args[idx + 1])
+                except ValueError:
+                    fail("BAD_LIMIT", "usage: thread list <agent> [--limit N]")
+                idx += 2
+            elif thread_id is None and not args[idx].startswith("--"):
+                thread_id = args[idx]
+                idx += 1
+            else:
+                fail("BAD_ARGS", f"usage: thread {sub} <agent> [...]")
+        if limit is not None and sub != "list":
+            fail("BAD_ARGS", "--limit only applies to thread list")
+        if sub in ("pin", "unpin", "archive", "unarchive") and not thread_id:
+            fail("BAD_NAME", f"usage: thread {sub} <agent> <thread-id> [--confirm]")
+        if sub == "list" and thread_id:
+            fail("BAD_ARGS", "usage: thread list <agent> [--limit N]")
+        act_thread(sub, agent, thread=thread_id, limit=limit, confirm=confirm)
+    elif action in ("thread-list", "thread-pin", "thread-unpin",
+                    "thread-archive", "thread-unarchive", "thread-rename"):
+        op = action[len("thread-"):]
+        agent = None
+        thread_id = None
+        title = None
+        limit = None
+        confirm = "--confirm" in rest
+        args = [a for a in rest if a != "--confirm"]
+        if confirm and op != "archive":
+            fail("BAD_ARGS", "--confirm only applies to thread-archive")
+        idx = 0
+        while idx < len(args):
+            if args[idx] == "--agent" and idx + 1 < len(args):
+                agent = args[idx + 1]
+                idx += 2
+            elif args[idx] == "--thread" and idx + 1 < len(args):
+                thread_id = args[idx + 1]
+                idx += 2
+            elif args[idx] == "--title" and idx + 1 < len(args):
+                title = args[idx + 1]
+                idx += 2
+            elif args[idx] == "--limit" and idx + 1 < len(args):
+                try:
+                    limit = int(args[idx + 1])
+                except ValueError:
+                    fail("BAD_LIMIT", "usage: thread-list --agent <agent> [--limit N]")
+                idx += 2
+            else:
+                fail("BAD_ARGS", f"usage: {action} --agent <agent> [--thread <id>] [--title <t>] [--confirm] [--limit N]")
+        if not agent:
+            fail("BAD_NAME", f"usage: {action} --agent <agent> [...]")
+        if limit is not None and op != "list":
+            fail("BAD_ARGS", "--limit only applies to thread-list")
+        if op in ("pin", "unpin", "archive", "unarchive", "rename") and not thread_id:
+            fail("BAD_NAME", f"usage: {action} --agent <agent> --thread <id> [...]")
+        act_thread(op, agent, thread=thread_id, title=title, limit=limit, confirm=confirm)
     elif action == "dm-log":
         limit = 50
         if rest:
diff --git a/bin/dm.py b/bin/dm.py
index 11b63db..ae54d03 100755
--- a/bin/dm.py
+++ b/bin/dm.py
@@ -53,9 +53,9 @@ except ImportError:
 
 API = "/home/super/Projects/NetVM/bin/muse-chat-api.py"
 NETVM_EXEC = "/home/super/Projects/NetVM/bin/netvm-exec.sh"
-VALID_AGENTS = ["muse", "pip", "646", "opm"]
-VALID_SENDERS = ["muse", "pip", "646", "opm", "super"]
-VALID_RECIPIENTS = ["muse", "pip", "646", "opm"]
+VALID_AGENTS = ["muse", "pip", "646", "opm", "dev", "def"]
+VALID_SENDERS = ["muse", "pip", "646", "opm", "dev", "def", "super"]
+VALID_RECIPIENTS = ["muse", "pip", "646", "opm", "dev", "def"]
 
 # ---- Canonical follow-up tags (2026-10-04, DEPLOY-DECISIONS.md) ----
 # Tags declare follow-up policy at send time. They are metadata only:
@@ -589,6 +589,11 @@ def dm_send(agent, target, message, verify=True, raw=False,
                 log_event({"type": "sent", "id": msg_id, "agent": agent, "to": recipient, "target": target,
                            "verified": True, "transport": "gateway", "tags": tags})
                 print(f"DM {msg_id} from {agent} to {recipient}/{target}: SENT and VERIFIED thread={thread_uuid} (gateway)")
+                # Follow-up record creation (same as the CDP path below): the
+                # gateway fast-path must not skip followup registration, or
+                # --expect-reply sends silently lose tracking.
+                if tags.get("reply:expected"):
+                    _register_followup(msg_id, agent, recipient, target, tags)
                 return msg_id
         except Exception as _e:
             log_event({"type": "gateway_fallback", "id": msg_id, "error": str(_e)[:100]})