feat(hermes): full Zulip adapter with subprocess agent routing + streaming

Complete rewrite of hermes-zulip-plugin following the same architecture
validated in pi-zulip-extension:

- Zulip event queue registration + async poll loop (replaces deprecated
  call_on_each_message threaded approach)
- DM-first processing (ADR-001/ADR-002): all private messages routed to agent
- @mention and @all-bots detection (ADR-005/ADR-006) with mention cleanup
- Subprocess agent invocation (configurable via agent.command) with stdin
  message passing and stdout response capture
- Placeholder + edit pattern: sends 'Thinking...' immediately, edits with
  final response (like pi extension streaming)
- Typing indicators (start/stop) via REST API
- Typing indicator support via REST API
- 10K Zulip char limit with graceful truncation
- Error handling: timeout, FileNotFoundError, agent crash → graceful Zulip msg
- Health endpoint (:9200) in background thread
- CLI entry point: python3 -m hermes_zulip --config config.yaml

hermes-zulip-plugin/src/hermes_zulip/__init__.py

@@ -1,11 +1,146 @@
 """
 Hermes Zulip Plugin — Core adapter for Hermes Python agents
 
-Implements BasePlatformAdapter to connect Hermes agents (Tanko, Mumuni,
-Koonimo, Koby) to the Sysloggh Zulip agent mesh.
+Connects Hermes agents (Tanko, Mumuni, Koonimo, Koby) to the Sysloggh
+Zulip agent mesh via event queue polling + subprocess agent invocation.
+
+Architecture mirrors pi-zulip-extension:
+  Zulip event queue → poll loop → parse message → spawn agent subprocess
+  → capture stdout → post response to Zulip (with placeholder + edit)
+
+Usage (systemd service):
+    python3 -m hermes_zulip --config /path/to/config.yaml
 
 Path: hermes-zulip-plugin/src/hermes_zulip/
 Config: config.yaml (per-agent, deployed alongside plugin)
+
+@see ADR-001 DM-first, ADR-005 @mention detection
+@see ADR-006 @all-bots, ADR-009 error handling
 """
 
-__version__ = "0.1.0"
+import argparse
+import logging
+import sys
+from typing import Dict, Any
+
+# Ensure the src directory is on the path for the adapter import
+import os
+import sys
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from hermes_zulip.adapter import ZulipAdapter
+
+__version__ = "0.2.0"
+
+
+def load_config(config_path: str) -> Dict[str, Any]:
+    """Load YAML config and inject env vars."""
+    import yaml
+
+    with open(config_path) as f:
+        cfg = yaml.safe_load(f)
+
+    # Override api_key from env if set
+    env_key = os.environ.get("ZULIP_API_KEY")
+    if env_key:
+        cfg.setdefault("zulip", {})["api_key"] = env_key
+
+    return cfg
+
+
+def setup_logging(cfg: Dict[str, Any]) -> None:
+    """Configure logging from config."""
+    level = (
+        cfg.get("monitoring", {}).get("log_level", "INFO").upper()
+    )
+    logging.basicConfig(
+        level=getattr(logging, level, logging.INFO),
+        format="%(asctime)s [%(name)s] %(levelname)s: %(message)s",
+        datefmt="%Y-%m-%d %H:%M:%S",
+    )
+
+
+def start_health_server(cfg: Dict[str, Any], adapter: ZulipAdapter) -> None:
+    """Start a minimal health HTTP endpoint in a background thread."""
+    import threading
+    from http.server import HTTPServer, BaseHTTPRequestHandler
+
+    port = cfg.get("monitoring", {}).get("health_port", 9200)
+    start_time = time.time()
+
+    class HealthHandler(BaseHTTPRequestHandler):
+        def do_GET(self) -> None:
+            if self.path in ("/", "/health"):
+                import json
+                body = json.dumps({
+                    "status": "ok",
+                    "agent": cfg.get("agent", {}).get("name", "unknown"),
+                    "connected": adapter.connected,
+                    "uptime_seconds": int(time.time() - start_time),
+                    "timestamp": datetime.utcnow().isoformat(),
+                })
+                self.send_response(200)
+                self.send_header("Content-Type", "application/json")
+                self.end_headers()
+                self.wfile.write(body.encode())
+            else:
+                self.send_response(404)
+                self.end_headers()
+
+        def log_message(self, fmt, *args):
+            pass  # Suppress health check log spam
+
+    server = HTTPServer(("127.0.0.1", port), HealthHandler)
+    thread = threading.Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+    logging.getLogger(__name__).info(f"Health endpoint on :{port}")
+
+
+def main() -> None:
+    """CLI entry point for the Hermes Zulip plugin.
+
+    Usage:
+        python3 -m hermes_zulip --config /path/to/config.yaml
+    """
+    import time
+    from datetime import datetime
+
+    parser = argparse.ArgumentParser(
+        description="Hermes Zulip Plugin — Connects Hermes agents to Zulip"
+    )
+    parser.add_argument(
+        "--config", "-c",
+        default="config.yaml",
+        help="Path to config.yaml (default: config.yaml)",
+    )
+    args = parser.parse_args()
+
+    # Load config
+    cfg = load_config(args.config)
+    setup_logging(cfg)
+    logger = logging.getLogger(__name__)
+
+    logger.info(
+        f"Starting Hermes Zulip Plugin v{__version__} "
+        f"for {cfg.get('agent', {}).get('name', 'unknown')}"
+    )
+
+    # Create adapter
+    adapter = ZulipAdapter(cfg)
+
+    # Start health endpoint (if enabled)
+    if cfg.get("monitoring", {}).get("health_endpoint_enabled", True):
+        start_health_server(cfg, adapter)
+
+    # Run the event loop (blocks until interrupted)
+    try:
+        adapter.run()
+    except KeyboardInterrupt:
+        logger.info("Shutting down...")
+    except Exception as e:
+        logger.error(f"Fatal error: {e}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

hermes-zulip-plugin/src/hermes_zulip/adapter.py

@@ -1,50 +1,100 @@
-# Core adapter  implements BasePlatformAdapter for Zulip
-# See ADR-005 for @mention detection, ADR-009 for error handling
-# Full implementation in issue #5.
+"""
+Core Zulip adapter for Hermes agents (Tanko, Mumuni, Koonimo, Koby).
 
+Architecture (mirrors pi-zulip-extension):
+  Zulip event queue → poll loop → parse message → spawn agent subprocess
+  → capture stdout → post response to Zulip
+
+The Hermes agent is invoked as a subprocess (configurable command) so the
+plugin remains decoupled from the agent runtime. In a future iteration,
+this could switch to a direct IPC/socket if the agent exposes one.
+
+See ADR-005 (@mention detection), ADR-006 (@all-bots), ADR-009 (error handling).
+"""
+
+import asyncio
+import json
 import logging
-import time
 import re
-import threading
+import shlex
+import subprocess
+import time
+from datetime import datetime
 from typing import Any, Dict, Optional
 
 logger = logging.getLogger(__name__)
 
-class ZulipAdapter:
-    """Zulip adapter for Hermes agents. Connects to Zulip, listens for
-    @mentions in #agent-hub, routes messages via BasePlatformAdapter."""
-
 # Regex to strip Zulip mention artifacts from message bodies (ADR-008)
 MENTION_CLEANER = re.compile(r'@\*\*[^*]+\*\*')
 
+
+class ZulipAdapter:
+    """Zulip adapter for Hermes agents.
+
+    Connects to Zulip via event queues (not the deprecated call_on_each_message),
+    polls for new events, routes @mentions and DMs to the Hermes agent via
+    subprocess, and posts responses back to Zulip.
+    """
+
     def __init__(self, config: Dict[str, Any]) -> None:
         self.config = config
         self.connected = False
         self._client = None
-        self._thread = None
-        self._stop_event = threading.Event()
+        self._queue_id: Optional[str] = None
+        self._last_event_id: int = -1
+        self._poll_task: Optional[asyncio.Task] = None
+
+        # Agent subprocess config
+        self._agent_command: str = config.get("agent", {}).get(
+            "command", "hermes chat"
+        )
+        self._agent_timeout: int = config.get("error_handling", {}).get(
+            "timeout_seconds", 60
+        )
+
+        # Bot identity for filtering own messages
+        self._bot_email: str = config.get("zulip", {}).get("email", "")
+        self._bot_id: int = config.get("swarm", {}).get("bot_id", 0)
+
+        # Stream config
+        self._stream: str = config.get("zulip", {}).get("stream", "agent-hub")
+        self._all_bots_user_id: int = config.get("zulip", {}).get(
+            "all_bots_user_id", 1
+        )
+
+    # ------------------------------------------------------------------
+    # Connection lifecycle
+    # ------------------------------------------------------------------
 
     async def connect(self) -> None:
-        """Establish connection to Zulip and start the event loop."""
+        """Connect to Zulip and register an event queue."""
         if self.connected:
             logger.info("Already connected to Zulip.")
             return
 
         try:
-            from zulip import Client
-            server_url = self.config['zulip']['server_url']
-            email = self.config['zulip']['email']
-            api_key = self.config['zulip']['api_key']
+            import zulip
 
-            self._client = Client(server_url=server_url, email=email, api_key=api_key)
+            server_url = self.config["zulip"]["server_url"]
+            email = self.config["zulip"]["email"]
+            api_key = self.config["zulip"]["api_key"]
+
+            self._client = zulip.Client(
+                server_url=server_url, email=email, api_key=api_key
+            )
+
+            # Register an event queue (like the pi extension)
+            queue_res = self._client.register(
+                event_types=["message"]
+            )
+            self._queue_id = queue_res.get("queue_id")
+            self._last_event_id = queue_res.get("last_event_id", -1)
             self.connected = True
-            logger.info(f"Connected to Zulip: {server_url} as {email}")
 
-            # Start the event loop in a background thread
-            self._stop_event.clear()
-            self._thread = threading.Thread(target=self._event_loop, daemon=True)
-            self._thread.start()
-            logger.info("Zulip event loop started.")
+            logger.info(
+                f"Connected to Zulip: {server_url} as {email} "
+                f"(queue={self._queue_id})"
+            )
 
         except Exception as e:
             logger.error(f"Failed to connect to Zulip: {e}")
@@ -52,82 +102,422 @@ class ZulipAdapter:
             raise
 
     async def disconnect(self) -> None:
-        """Disconnect from Zulip and stop the event loop."""
-        if not self.connected:
-            return
-        self._stop_event.set()
-        if self._thread:
-            self._thread.join(timeout=5)
+        """Disconnect and cancel the poll loop."""
+        if self._poll_task:
+            self._poll_task.cancel()
+            try:
+                await self._poll_task
+            except asyncio.CancelledError:
+                pass
+            self._poll_task = None
         self.connected = False
         logger.info("Disconnected from Zulip.")
 
-    async def send_message(self, topic: str, content: str) -> Dict[str, Any]:
-        """Send a message to Zulip with retry logic (ADR-009)."""
-        max_retries = self.config.get('error_handling', {}).get('retry_count', 3)
-        retry_delay = self.config.get('error_handling', {}).get('retry_delay_seconds', 5)
+    # ------------------------------------------------------------------
+    # Event polling (async loop, like pi extension's setInterval)
+    # ------------------------------------------------------------------
 
-        for attempt in range(max_retries):
+    async def poll_forever(self, poll_interval: float = 3.0) -> None:
+        """Continuously poll the Zulip event queue and process messages.
+
+        This is the main event loop. Runs until cancelled.
+        """
+        while self.connected and self._client and self._queue_id:
             try:
-                result = self._client.send_message({
-                    'type': 'stream',
-                    'to': self.config['zulip']['stream'],
-                    'subject': topic,
-                    'content': content,
-                })
-                logger.info(f"Message sent to {self.config['zulip']['stream']} > {topic} (attempt {attempt + 1})")
-                return result
+                events = await self._poll_events()
+                for event in events:
+                    await self._process_event(event)
+            except asyncio.CancelledError:
+                break
             except Exception as e:
-                logger.warning(f"Failed to send message (attempt {attempt + 1}): {e}")
-                if attempt < max_retries - 1:
-                    time.sleep(retry_delay)
-                else:
-                    raise
+                logger.error(f"Poll error: {e}")
+                # Check for queue expiry
+                if "BAD_EVENT_QUEUE_ID" in str(e):
+                    logger.info("Queue expired, reconnecting...")
+                    self.connected = False
+                    await self._reconnect_with_retry()
+                    continue
 
-    async def on_event(self, event: Dict[str, Any]) -> Optional[Dict[str, Any]]:
-        """Process incoming Zulip events and route via BasePlatformAdapter."""
-        if event.get('type') != 'message':
-            return None
+            await asyncio.sleep(poll_interval)
 
-        msg = event.get('message', {})
-        mentioned_users = msg.get('mentioned_users', False)
+    async def _poll_events(self) -> list:
+        """Fetch events from the Zulip event queue."""
+        import zulip
 
-        # Only process messages that mention this bot (ADR-005)
-        if not mentioned_users:
-            return None
+        if not self._client or not self._queue_id:
+            return []
 
-        # Strip Zulip formatting artifacts
-        body = msg.get('content', '')
-        clean_body = self.MENTION_CLEANER.sub('', body)
-        clean_body = clean_body.strip()
+        response = self._client.get_events(
+            queue_id=self._queue_id,
+            last_event_id=self._last_event_id,
+            dont_block=True,
+        )
 
-        # Construct the MessageEvent for BasePlatformAdapter
-        return {
-            'type': 'MessageEvent',
-            'sender': msg.get('sender_full_name', 'Unknown'),
-            'body': clean_body,
-            'topic': msg.get('subject', 'Unknown Topic'),
-            'stream': msg.get('stream', 'Unknown Stream'),
-            'timestamp': msg.get('timestamp', 0),
-        }
+        if response.get("result") != "success":
+            raise RuntimeError(
+                f"Events API error: {response.get('msg', 'unknown')}"
+            )
 
-    def _event_loop(self) -> None:
-        """Background thread to listen for Zulip events."""
+        events = response.get("events", [])
+        for event in events:
+            if event.get("id", 0) > self._last_event_id:
+                self._last_event_id = event["id"]
+
+        return [e for e in events if e.get("type") == "message"]
+
+    async def _reconnect_with_retry(self) -> None:
+        """Retry connection with backoff."""
+        retries = self.config.get("error_handling", {}).get("retry_count", 3)
+        delay = self.config.get("error_handling", {}).get(
+            "retry_delay_seconds", 5
+        )
+
+        for attempt in range(retries):
+            logger.info(
+                f"Reconnect attempt {attempt + 1}/{retries} "
+                f"in {delay}s..."
+            )
+            await asyncio.sleep(delay)
             try:
-            self._client.call_on_each_message(
-                lambda event: self._process_event(event),
+                await self.connect()
+                if self.connected:
+                    logger.info("Reconnected successfully.")
+                    return
+            except Exception as e:
+                logger.error(f"Reconnect attempt {attempt + 1} failed: {e}")
+                delay *= 2  # Exponential backoff
+
+        logger.error("Max reconnection retries reached. Giving up.")
+
+    # ------------------------------------------------------------------
+    # Message processing
+    # ------------------------------------------------------------------
+
+    async def _process_event(self, event: Dict[str, Any]) -> None:
+        """Route a Zulip message event to the Hermes agent."""
+        msg = event.get("message", {})
+        msg_type = msg.get("type", "")  # "private" or "stream"
+        sender_email = msg.get("sender_email", "")
+        sender_name = msg.get("sender_full_name", "Unknown")
+        content = msg.get("content", "")
+
+        # Ignore own messages
+        if sender_email == self._bot_email:
+            return
+
+        # Determine if this message targets this bot
+        mentioned_users = msg.get("mentioned_users", [])
+        mentioned_user_ids = [u.get("user_id") for u in mentioned_users]
+        is_dm = msg_type == "private"
+        is_mention = self._bot_id in mentioned_user_ids
+        is_all_bots = self._all_bots_user_id in mentioned_user_ids
+
+        # DM-first: process all private messages (like ADR-001/ADR-002)
+        if is_dm:
+            logger.info(f"DM from {sender_name}: {content[:80]}...")
+            await self._route_to_agent(
+                message_type="dm",
+                sender_name=sender_name,
+                content=content,
+                recipient=sender_email,
+            )
+            return
+
+        # Stream: only respond to @mentions and @all-bots (ADR-005, ADR-006)
+        if msg_type == "stream" and (is_mention or is_all_bots):
+            stream_name = msg.get("display_recipient", "unknown")
+            topic = msg.get("subject", "general")
+            logger.info(
+                f"{'@mention' if is_mention else '@all-bots'} "
+                f"in #{stream_name} > {topic}"
+            )
+
+            # Clean @mention artifacts from content (ADR-008)
+            clean_content = MENTION_CLEANER.sub("", content).strip()
+
+            await self._route_to_agent(
+                message_type="mention" if is_mention else "all-bots",
+                sender_name=sender_name,
+                content=clean_content,
+                recipient=stream_name,
+                topic=topic,
+                stream_id=msg.get("stream_id"),
+            )
+
+    async def _route_to_agent(
+        self,
+        message_type: str,
+        sender_name: str,
+        content: str,
+        recipient: str,
+        topic: Optional[str] = None,
+        stream_id: Optional[int] = None,
+    ) -> None:
+        """Send the message to the Hermes agent subprocess and relay the
+        response back to Zulip.
+
+        Architecture note: This uses a subprocess (configurable via
+        agent.command in config.yaml). This mirrors the initial pi extension
+        approach. A future iteration could use IPC or a socket if the
+        Hermes agent exposes one.
+        """
+        # 1. Send typing indicator
+        await self._send_typing_indicator(recipient, "start")
+
+        # 2. Send a "Thinking..." placeholder to Zulip immediately.
+        #    On agent_end, this message will be edited with the final response.
+        placeholder = (
+            f":robot: _Processing your message..._"
+        )
+        placeholder_msg_id = None
+        try:
+            placeholder_msg_id = await self._send_message(
+                message_type=message_type,
+                recipient=recipient,
+                content=placeholder,
+                topic=topic,
+                stream_id=stream_id,
             )
         except Exception as e:
-            logger.error(f"Event loop crashed: {e}")
-            self.connected = False
+            logger.warning(f"Failed to send placeholder: {e}")
+
+        # 3. Invoke the Hermes agent subprocess
+        response_text = await self._invoke_agent(content, sender_name)
+
+        # 4. Stop typing indicator
+        await self._send_typing_indicator(recipient, "stop")
+
+        # 5. Post (or edit) the response
+        if not response_text.strip():
+            logger.warning(
+                f"Hermes agent returned empty response for "
+                f"{message_type} from {sender_name}"
+            )
+            return
+
+        # Truncate to Zulip's 10K char limit
+        MAX_ZULIP_MSG = 10000
+        truncated = (
+            response_text[:MAX_ZULIP_MSG]
+            + "\n\n[...truncated at Zulip limit]"
+            if len(response_text) > MAX_ZULIP_MSG
+            else response_text
+        )
 
-    def _process_event(self, event: Dict[str, Any]) -> None:
-        """Bridge the synchronous event to the async on_event handler."""
-        import asyncio
         try:
-            loop = asyncio.get_event_loop()
-            if loop.is_running():
-                asyncio.create_task(self.on_event(event))
+            if placeholder_msg_id:
+                await self._edit_message(placeholder_msg_id, truncated)
+                logger.info(
+                    f"Finalized response to {sender_name} "
+                    f"({len(truncated)} chars)"
+                )
             else:
-                asyncio.run(self.on_event(event))
+                await self._send_message(
+                    message_type=message_type,
+                    recipient=recipient,
+                    content=truncated,
+                    topic=topic,
+                    stream_id=stream_id,
+                )
+                logger.info(
+                    f"Sent response to {sender_name} "
+                    f"({len(truncated)} chars)"
+                )
         except Exception as e:
-            logger.error(f"Error processing event: {e}")
+            logger.error(f"Failed to post response: {e}")
+
+    # ------------------------------------------------------------------
+    # Hermes agent subprocess invocation
+    # ------------------------------------------------------------------
+
+    async def _invoke_agent(
+        self, message: str, sender_name: str
+    ) -> str:
+        """Spawn the Hermes agent subprocess with the message.
+
+        The agent command is configurable (agent.command in config.yaml).
+        Default: "hermes chat"
+
+        The message is passed via stdin (pipe). The agent's stdout is
+        captured as the response.
+
+        This is synchronous (run in executor) to avoid blocking the
+        event loop during subprocess execution.
+        """
+        cmd_str = self._agent_command
+        cmd = shlex.split(cmd_str)
+
+        logger.info(
+            f"Invoking agent: {' '.join(cmd)} "
+            f"(timeout={self._agent_timeout}s)"
+        )
+
+        def _run() -> str:
+            try:
+                result = subprocess.run(
+                    cmd,
+                    input=message,
+                    capture_output=True,
+                    text=True,
+                    timeout=self._agent_timeout,
+                )
+                if result.returncode != 0:
+                    stderr = result.stderr.strip()
+                    logger.error(
+                        f"Agent exited with code {result.returncode}: "
+                        f"{stderr}"
+                    )
+                    return (
+                        f":warning: Agent error (exit {result.returncode}). "
+                        f"Please try again later."
+                    )
+                return result.stdout.strip()
+            except subprocess.TimeoutExpired:
+                logger.error(
+                    f"Agent timed out after {self._agent_timeout}s"
+                )
+                return (
+                    f":hourglass: Agent timed out after "
+                    f"{self._agent_timeout}s. Please try again."
+                )
+            except FileNotFoundError:
+                logger.error(f"Agent command not found: {cmd_str}")
+                return (
+                    f":warning: Agent command not found: `{cmd_str}`. "
+                    f"Check configuration."
+                )
+            except Exception as e:
+                logger.error(f"Agent invocation error: {e}")
+                return (
+                    f":warning: Failed to invoke agent: {e}"
+                )
+
+        return await asyncio.get_event_loop().run_in_executor(None, _run)
+
+    # ------------------------------------------------------------------
+    # Zulip API helpers
+    # ------------------------------------------------------------------
+
+    async def _send_message(
+        self,
+        message_type: str,
+        recipient: str,
+        content: str,
+        topic: Optional[str] = None,
+        stream_id: Optional[int] = None,
+    ) -> Optional[int]:
+        """Send a message to Zulip. Returns the message ID if successful."""
+        if not self._client:
+            return None
+
+        def _send() -> Optional[int]:
+            if message_type in ("dm", "private"):
+                # Private message: recipient is email
+                payload = {
+                    "type": "private",
+                    "to": [recipient],
+                    "content": content,
+                }
+            else:
+                # Stream message
+                payload = {
+                    "type": "stream",
+                    "to": stream_id or recipient,
+                    "subject": topic or "general",
+                    "content": content,
+                }
+
+            try:
+                result = self._client.send_message(payload)
+                if result.get("result") == "success":
+                    return result.get("id")
+                logger.error(
+                    f"Send message failed: {result.get('msg', 'unknown')}"
+                )
+                return None
+            except Exception as e:
+                logger.error(f"Send message error: {e}")
+                return None
+
+        return await asyncio.get_event_loop().run_in_executor(None, _send)
+
+    async def _edit_message(
+        self, message_id: int, content: str
+    ) -> bool:
+        """Edit a previously sent Zulip message (for streaming updates)."""
+        if not self._client:
+            return False
+
+        def _edit() -> bool:
+            try:
+                result = self._client.update_message(
+                    {"message_id": message_id, "content": content}
+                )
+                if result.get("result") != "success":
+                    logger.warning(
+                        f"Edit message {message_id}: "
+                        f"{result.get('msg', 'unknown')}"
+                    )
+                return result.get("result") == "success"
+            except Exception as e:
+                logger.warning(f"Edit message {message_id} error: {e}")
+                return False
+
+        return await asyncio.get_event_loop().run_in_executor(None, _edit)
+
+    async def _send_typing_indicator(
+        self, recipient: str, operation: str
+    ) -> None:
+        """Send a typing indicator (start/stop)."""
+        if not self._client:
+            return
+
+        def _typing() -> None:
+            try:
+                # The zulip Python library doesn't have a direct typing API
+                # Use the REST endpoint directly via requests
+                import requests
+
+                server_url = self.config["zulip"]["server_url"]
+                email = self.config["zulip"]["email"]
+                api_key = self.config["zulip"]["api_key"]
+
+                # For private messages, recipient is the user's email
+                # We need their user_id. Use the API directly.
+                to_data = json.dumps([recipient])
+                requests.post(
+                    f"{server_url}/api/v1/typing",
+                    auth=requests.auth.HTTPBasicAuth(email, api_key),
+                    data={"to": to_data, "op": operation},
+                    timeout=5,
+                )
+            except Exception as e:
+                # Non-critical
+                pass
+
+        await asyncio.get_event_loop().run_in_executor(None, _typing)
+
+    # ------------------------------------------------------------------
+    # Synchronous entry point for the Hermes runner
+    # ------------------------------------------------------------------
+
+    def run(self) -> None:
+        """Synchronous entry point that starts the async poll loop.
+
+        Called by the Hermes runner (e.g., from a systemd service).
+        """
+        asyncio.run(self._run_async())
+
+    async def _run_async(self) -> None:
+        """Async entry point."""
+        try:
+            await self.connect()
+            if self.connected:
+                logger.info("Starting event poll loop...")
+                await self.poll_forever()
+        except asyncio.CancelledError:
+            logger.info("Poll loop cancelled.")
+        except Exception as e:
+            logger.error(f"Fatal error in event loop: {e}")
+        finally:
+            await self.disconnect()