fix: preserve live tasks during daemon recovery

artemis/config/settings.py

@@ -108,6 +108,7 @@ class Settings(BaseSettings):
     OPENAI_REASONING_EFFORT: str = "high"
     ARTEMIS_CREDENTIAL_TIMEOUT_SECONDS: float = Field(default=12.0, gt=0)
     ARTEMIS_MODEL_CACHE_TTL_SECONDS: float = Field(default=10.0, ge=0)
+    ARTEMIS_DAEMON_PROBE_TIMEOUT_SECONDS: float = Field(default=2.0, gt=0)
     ARTEMIS_VIDEO_TIMEOUT_SECONDS: float = Field(default=120.0, gt=0)
     ARTEMIS_VIDEO_MAX_RETRIES: int = Field(default=1, ge=0)
     ARTEMIS_VIDEO_CHUNK_SECONDS: float = Field(default=60.0, gt=0)

artemis/runtime/daemon_client.py

@@ -28,6 +28,9 @@ import urllib.error
 import urllib.request
 
 from artemis.config.paths import ROOT_DIR
+from artemis.config.settings import settings
+from artemis.runtime.process_probe import pid_is_alive
+from artemis.runtime.server_lifecycle import is_port_in_use, read_server_info
 from artemis.utils.logger import get_logger
 
 logger = get_logger(__name__)
@@ -44,10 +47,11 @@ def is_standalone_forced() -> bool:
 def is_daemon_running(
     host: str = DEFAULT_DAEMON_HOST,
     port: int = DEFAULT_DAEMON_PORT,
-    timeout: float = 0.3,
+    timeout: float | None = None,
 ) -> bool:
     """Fast probe to check if the Artemis Daemon HTTP server is responding."""
-    url = f"http://{host}:{port}/api/system/readiness"
+    timeout = timeout if timeout is not None else settings.ARTEMIS_DAEMON_PROBE_TIMEOUT_SECONDS
+    url = f"http://{host}:{port}/api/system/server-status"
     try:
         req = urllib.request.Request(url, headers={"User-Agent": "Artemis-Daemon-Probe"})
         with urllib.request.urlopen(req, timeout=timeout) as response:
@@ -190,6 +194,15 @@ def ensure_daemon_running(
     if is_daemon_running(host, port):
         return True, f"http://{host}:{port}"
 
+    if is_port_in_use(port, host):
+        # A slow/busy HTTP loop is not a stopped daemon. Only trust persisted
+        # metadata belonging to a live process on the requested endpoint.
+        info = read_server_info() or {}
+        if info.get("port") == port and info.get("host") == host and pid_is_alive(info.get("pid")):
+            return True, f"http://{host}:{port}"
+        logger.warning(f"Port {host}:{port} is occupied; refusing to spawn another daemon")
+        return False, None
+
     # Auto-spawn Daemon in background
     spawn_daemon(host, port)