address review feedback on #890: default provider, --listener-port, top-level imports

cli/planoai/main.py

@@ -6,7 +6,13 @@ import sys
 import contextlib
 import logging
 import rich_click as click
+import yaml
 from planoai import targets
+from planoai.defaults import (
+    DEFAULT_LLM_LISTENER_PORT,
+    detect_providers,
+    synthesize_default_config,
+)
 
 # Brand color - Plano purple
 PLANO_COLOR = "#969FF4"
@@ -317,7 +323,23 @@ def build(docker):
     help="Show detailed startup logs with timestamps.",
     is_flag=True,
 )
-def up(file, path, foreground, with_tracing, tracing_port, docker, verbose):
+@click.option(
+    "--listener-port",
+    default=DEFAULT_LLM_LISTENER_PORT,
+    type=int,
+    show_default=True,
+    help="Override the LLM listener port when running without a config file. Ignored when a config file is present.",
+)
+def up(
+    file,
+    path,
+    foreground,
+    with_tracing,
+    tracing_port,
+    docker,
+    verbose,
+    listener_port,
+):
     """Starts Plano."""
     from rich.status import Status
 
@@ -332,15 +354,8 @@ def up(file, path, foreground, with_tracing, tracing_port, docker, verbose):
         # pass-through config that covers the common LLM providers and
         # auto-wires OTel export to ``planoai obs``. See cli/planoai/defaults.py.
         if not os.path.exists(plano_config_file):
-            import yaml
-
-            from planoai.defaults import (
-                detect_providers,
-                synthesize_default_config,
-            )
-
             detection = detect_providers()
-            cfg_dict = synthesize_default_config()
+            cfg_dict = synthesize_default_config(listener_port=listener_port)
 
             default_dir = os.path.expanduser("~/.plano")
             os.makedirs(default_dir, exist_ok=True)
@@ -350,7 +365,7 @@ def up(file, path, foreground, with_tracing, tracing_port, docker, verbose):
             plano_config_file = synthesized_path
             console.print(
                 f"[dim]No plano config found; using defaults ({detection.summary}). "
-                f"Listening on :12000, tracing -> http://localhost:4317.[/dim]"
+                f"Listening on :{listener_port}, tracing -> http://localhost:4317.[/dim]"
             )
 
         if not docker: