Add non-streaming mode.

Author: beacoder

README.md

@@ -94,7 +94,8 @@ Edit `~/.config/python-agent-harness/config.json`:
     "base_url": "https://api.deepseek.com/v1",
     "api_key": "sk-...",
     "model": "deepseek-chat",
-    "reasoning_effort": "medium"
+    "reasoning_effort": "medium",
+    "stream": true
   },
   "paths": {
     "context_path": null,
@@ -106,7 +107,9 @@ Edit `~/.config/python-agent-harness/config.json`:
 `reasoning_effort` is passed to the API as-is (omitted when unset), so you
 can use whatever your provider accepts ("low"/"medium"/"high" for OpenAI
 and compatible providers). Other optional keys: `backend`, `temperature`,
-`max_tokens`, `timeout`. The `paths` object (`context_path`,
+`max_tokens`, `timeout`, `stream` (`true` by default; set `false` for
+non-streaming one-shot responses — `python-agent-harness run --no-stream`
+overrides it on the command line). The `paths` object (`context_path`,
 `skill_path`) overrides the context/skill directory discovery — defaults
 are `<project>/contexts` or `~/.emacs.d/contexts` for context files, and
 `<project>/skills` or `~/.emacs.d/skills` for skills.

python_agent_harness/agent.py

@@ -348,6 +348,7 @@ def safe_delta(text: str) -> None:
                     temperature=session.temperature,
                     max_tokens=session.max_tokens,
                     reasoning_effort=session.reasoning_effort,
+                    stream=session.stream,
                     # sub-agents must not stream into the parent's live
                     # stream row — their text is private until returned
                     on_delta=(safe_delta if self.top_level else None),

python_agent_harness/agent_session.py

@@ -73,6 +73,7 @@ def __init__(
         temperature: float = config.TEMPERATURE,
         max_tokens: int = config.MAX_TOKENS,
         reasoning_effort: str | None = None,
+        stream: bool = True,
         tool_names: list[str] | None = None,
         registry: Registry | None = None,
         context_path: str | None = None,
@@ -87,6 +88,7 @@ def __init__(
         self.temperature = temperature
         self.max_tokens = max_tokens
         self.reasoning_effort = reasoning_effort
+        self.stream = stream
         self.tools_enabled = True
         self.alive = True
         self._configured_context_path = context_path

python_agent_harness/cli.py

@@ -28,6 +28,7 @@ def make_session(
     project_dir: str,
     config_path: str | None = None,
     model: str | None = None,
+    stream: bool | None = None,
 ) -> AgentSession:
     """Create an AgentSession from config file + env (no env required).
 
@@ -70,6 +71,7 @@ def make_session(
         temperature=settings["temperature"],
         max_tokens=settings["max_tokens"],
         reasoning_effort=settings["reasoning_effort"],
+        stream=settings["stream"] if stream is None else stream,
         registry=default_registry(),
         context_path=paths.get("context_path"),
         skill_path=paths.get("skill_path"),
@@ -80,7 +82,10 @@ def cmd_run(args: argparse.Namespace) -> int:
     from .tui import Tui
 
     project_dir = args.project or os.getcwd()
-    session = make_session(project_dir, config_path=args.config)
+    session = make_session(
+        project_dir, config_path=args.config,
+        stream=False if getattr(args, "no_stream", False) else None,
+    )
     Tui(session).run()
     session.close()
     return 0
@@ -108,6 +113,7 @@ def cmd_config(args: argparse.Namespace) -> int:
     print(f"temperature: {settings['temperature']}")
     print(f"max_tokens: {settings['max_tokens']}")
     print(f"reasoning_effort: {settings['reasoning_effort']}")
+    print(f"stream: {settings['stream']}")
     print(f"timeout: {settings['timeout']}")
     print(f"context_path: {paths['context_path'] or '(auto-discover)'}")
     print(f"skill_path: {paths['skill_path'] or '(auto-discover)'}")
@@ -135,6 +141,10 @@ def build_parser() -> argparse.ArgumentParser:
 
     p_run = sub.add_parser("run", help="interactive TUI agent session")
     _add_config_arg(p_run, suppress=True)
+    p_run.add_argument(
+        "--no-stream", action="store_true",
+        help="disable streaming (one-shot responses; overrides config file)",
+    )
     p_run.add_argument("project", nargs="?", help="project directory (default: cwd)")
 
     p_config = sub.add_parser(