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hermes-agent/tests/test_run_agent_codex_responses.py

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import sys
import types
from types import SimpleNamespace
import pytest
sys.modules.setdefault("fire", types.SimpleNamespace(Fire=lambda *a, **k: None))
sys.modules.setdefault("firecrawl", types.SimpleNamespace(Firecrawl=object))
sys.modules.setdefault("fal_client", types.SimpleNamespace())
import run_agent
def _patch_agent_bootstrap(monkeypatch):
monkeypatch.setattr(
run_agent,
"get_tool_definitions",
lambda **kwargs: [
{
"type": "function",
"function": {
"name": "terminal",
"description": "Run shell commands.",
"parameters": {"type": "object", "properties": {}},
},
}
],
)
monkeypatch.setattr(run_agent, "check_toolset_requirements", lambda: {})
def _build_agent(monkeypatch):
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model="gpt-5-codex",
base_url="https://chatgpt.com/backend-api/codex",
api_key="codex-token",
quiet_mode=True,
max_iterations=4,
skip_context_files=True,
skip_memory=True,
)
agent._cleanup_task_resources = lambda task_id: None
agent._persist_session = lambda messages, history=None: None
agent._save_trajectory = lambda messages, user_message, completed: None
agent._save_session_log = lambda messages: None
return agent
def _build_copilot_agent(monkeypatch, *, model="gpt-5.4"):
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model=model,
provider="copilot",
api_mode="codex_responses",
base_url="https://api.githubcopilot.com",
api_key="gh-token",
quiet_mode=True,
max_iterations=4,
skip_context_files=True,
skip_memory=True,
)
agent._cleanup_task_resources = lambda task_id: None
agent._persist_session = lambda messages, history=None: None
agent._save_trajectory = lambda messages, user_message, completed: None
agent._save_session_log = lambda messages: None
return agent
def _codex_message_response(text: str):
return SimpleNamespace(
output=[
SimpleNamespace(
type="message",
content=[SimpleNamespace(type="output_text", text=text)],
)
],
usage=SimpleNamespace(input_tokens=5, output_tokens=3, total_tokens=8),
status="completed",
model="gpt-5-codex",
)
def _codex_tool_call_response():
return SimpleNamespace(
output=[
SimpleNamespace(
type="function_call",
id="fc_1",
call_id="call_1",
name="terminal",
arguments="{}",
)
],
usage=SimpleNamespace(input_tokens=12, output_tokens=4, total_tokens=16),
status="completed",
model="gpt-5-codex",
)
def _codex_incomplete_message_response(text: str):
return SimpleNamespace(
output=[
SimpleNamespace(
type="message",
status="in_progress",
content=[SimpleNamespace(type="output_text", text=text)],
)
],
usage=SimpleNamespace(input_tokens=4, output_tokens=2, total_tokens=6),
status="in_progress",
model="gpt-5-codex",
)
def _codex_commentary_message_response(text: str):
return SimpleNamespace(
output=[
SimpleNamespace(
type="message",
phase="commentary",
status="completed",
content=[SimpleNamespace(type="output_text", text=text)],
)
],
usage=SimpleNamespace(input_tokens=4, output_tokens=2, total_tokens=6),
status="completed",
model="gpt-5-codex",
)
def _codex_ack_message_response(text: str):
return SimpleNamespace(
output=[
SimpleNamespace(
type="message",
status="completed",
content=[SimpleNamespace(type="output_text", text=text)],
)
],
usage=SimpleNamespace(input_tokens=4, output_tokens=2, total_tokens=6),
status="completed",
model="gpt-5-codex",
)
class _FakeResponsesStream:
def __init__(self, *, final_response=None, final_error=None):
self._final_response = final_response
self._final_error = final_error
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
return False
def __iter__(self):
return iter(())
def get_final_response(self):
if self._final_error is not None:
raise self._final_error
return self._final_response
class _FakeCreateStream:
def __init__(self, events):
self._events = list(events)
self.closed = False
def __iter__(self):
return iter(self._events)
def close(self):
self.closed = True
def _codex_request_kwargs():
return {
"model": "gpt-5-codex",
"instructions": "You are Hermes.",
"input": [{"role": "user", "content": "Ping"}],
"tools": None,
"store": False,
}
def test_api_mode_uses_explicit_provider_when_codex(monkeypatch):
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model="gpt-5-codex",
base_url="https://openrouter.ai/api/v1",
provider="openai-codex",
api_key="codex-token",
quiet_mode=True,
max_iterations=1,
skip_context_files=True,
skip_memory=True,
)
assert agent.api_mode == "codex_responses"
assert agent.provider == "openai-codex"
def test_api_mode_normalizes_provider_case(monkeypatch):
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model="gpt-5-codex",
base_url="https://openrouter.ai/api/v1",
provider="OpenAI-Codex",
api_key="codex-token",
quiet_mode=True,
max_iterations=1,
skip_context_files=True,
skip_memory=True,
)
assert agent.provider == "openai-codex"
assert agent.api_mode == "codex_responses"
def test_api_mode_respects_explicit_openrouter_provider_over_codex_url(monkeypatch):
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model="gpt-5-codex",
base_url="https://chatgpt.com/backend-api/codex",
provider="openrouter",
api_key="test-token",
quiet_mode=True,
max_iterations=1,
skip_context_files=True,
skip_memory=True,
)
assert agent.api_mode == "chat_completions"
assert agent.provider == "openrouter"
def test_build_api_kwargs_codex(monkeypatch):
agent = _build_agent(monkeypatch)
kwargs = agent._build_api_kwargs(
[
{"role": "system", "content": "You are Hermes."},
{"role": "user", "content": "Ping"},
]
)
assert kwargs["model"] == "gpt-5-codex"
assert kwargs["instructions"] == "You are Hermes."
assert kwargs["store"] is False
assert isinstance(kwargs["input"], list)
assert kwargs["input"][0]["role"] == "user"
assert kwargs["tools"][0]["type"] == "function"
assert kwargs["tools"][0]["name"] == "terminal"
assert kwargs["tools"][0]["strict"] is False
assert "function" not in kwargs["tools"][0]
assert kwargs["store"] is False
assert kwargs["tool_choice"] == "auto"
assert kwargs["parallel_tool_calls"] is True
assert isinstance(kwargs["prompt_cache_key"], str)
assert len(kwargs["prompt_cache_key"]) > 0
assert "timeout" not in kwargs
assert "max_tokens" not in kwargs
assert "extra_body" not in kwargs
def test_build_api_kwargs_copilot_responses_omits_openai_only_fields(monkeypatch):
agent = _build_copilot_agent(monkeypatch)
kwargs = agent._build_api_kwargs([{"role": "user", "content": "hi"}])
assert kwargs["model"] == "gpt-5.4"
assert kwargs["store"] is False
assert kwargs["tool_choice"] == "auto"
assert kwargs["parallel_tool_calls"] is True
assert kwargs["reasoning"] == {"effort": "medium"}
assert "prompt_cache_key" not in kwargs
assert "include" not in kwargs
def test_build_api_kwargs_copilot_responses_omits_reasoning_for_non_reasoning_model(monkeypatch):
agent = _build_copilot_agent(monkeypatch, model="gpt-4.1")
kwargs = agent._build_api_kwargs([{"role": "user", "content": "hi"}])
assert "reasoning" not in kwargs
assert "include" not in kwargs
assert "prompt_cache_key" not in kwargs
def test_run_codex_stream_retries_when_completed_event_missing(monkeypatch):
agent = _build_agent(monkeypatch)
calls = {"stream": 0}
def _fake_stream(**kwargs):
calls["stream"] += 1
if calls["stream"] == 1:
return _FakeResponsesStream(
final_error=RuntimeError("Didn't receive a `response.completed` event.")
)
return _FakeResponsesStream(final_response=_codex_message_response("stream ok"))
agent.client = SimpleNamespace(
responses=SimpleNamespace(
stream=_fake_stream,
create=lambda **kwargs: _codex_message_response("fallback"),
)
)
response = agent._run_codex_stream(_codex_request_kwargs())
assert calls["stream"] == 2
assert response.output[0].content[0].text == "stream ok"
def test_run_codex_stream_falls_back_to_create_after_stream_completion_error(monkeypatch):
agent = _build_agent(monkeypatch)
calls = {"stream": 0, "create": 0}
def _fake_stream(**kwargs):
calls["stream"] += 1
return _FakeResponsesStream(
final_error=RuntimeError("Didn't receive a `response.completed` event.")
)
def _fake_create(**kwargs):
calls["create"] += 1
return _codex_message_response("create fallback ok")
agent.client = SimpleNamespace(
responses=SimpleNamespace(
stream=_fake_stream,
create=_fake_create,
)
)
response = agent._run_codex_stream(_codex_request_kwargs())
assert calls["stream"] == 2
assert calls["create"] == 1
assert response.output[0].content[0].text == "create fallback ok"
def test_run_codex_stream_fallback_parses_create_stream_events(monkeypatch):
agent = _build_agent(monkeypatch)
calls = {"stream": 0, "create": 0}
create_stream = _FakeCreateStream(
[
SimpleNamespace(type="response.created"),
SimpleNamespace(type="response.in_progress"),
SimpleNamespace(type="response.completed", response=_codex_message_response("streamed create ok")),
]
)
def _fake_stream(**kwargs):
calls["stream"] += 1
return _FakeResponsesStream(
final_error=RuntimeError("Didn't receive a `response.completed` event.")
)
def _fake_create(**kwargs):
calls["create"] += 1
assert kwargs.get("stream") is True
return create_stream
agent.client = SimpleNamespace(
responses=SimpleNamespace(
stream=_fake_stream,
create=_fake_create,
)
)
response = agent._run_codex_stream(_codex_request_kwargs())
assert calls["stream"] == 2
assert calls["create"] == 1
assert create_stream.closed is True
assert response.output[0].content[0].text == "streamed create ok"
def test_run_conversation_codex_plain_text(monkeypatch):
agent = _build_agent(monkeypatch)
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: _codex_message_response("OK"))
result = agent.run_conversation("Say OK")
assert result["completed"] is True
assert result["final_response"] == "OK"
assert result["messages"][-1]["role"] == "assistant"
assert result["messages"][-1]["content"] == "OK"
def test_run_conversation_codex_refreshes_after_401_and_retries(monkeypatch):
agent = _build_agent(monkeypatch)
calls = {"api": 0, "refresh": 0}
class _UnauthorizedError(RuntimeError):
def __init__(self):
super().__init__("Error code: 401 - unauthorized")
self.status_code = 401
def _fake_api_call(api_kwargs):
calls["api"] += 1
if calls["api"] == 1:
raise _UnauthorizedError()
return _codex_message_response("Recovered after refresh")
def _fake_refresh(*, force=True):
calls["refresh"] += 1
assert force is True
return True
monkeypatch.setattr(agent, "_interruptible_api_call", _fake_api_call)
monkeypatch.setattr(agent, "_try_refresh_codex_client_credentials", _fake_refresh)
result = agent.run_conversation("Say OK")
assert calls["api"] == 2
assert calls["refresh"] == 1
assert result["completed"] is True
assert result["final_response"] == "Recovered after refresh"
def test_try_refresh_codex_client_credentials_rebuilds_client(monkeypatch):
agent = _build_agent(monkeypatch)
closed = {"value": False}
rebuilt = {"kwargs": None}
class _ExistingClient:
def close(self):
closed["value"] = True
class _RebuiltClient:
pass
def _fake_openai(**kwargs):
rebuilt["kwargs"] = kwargs
return _RebuiltClient()
monkeypatch.setattr(
"hermes_cli.auth.resolve_codex_runtime_credentials",
lambda force_refresh=True: {
"api_key": "new-codex-token",
"base_url": "https://chatgpt.com/backend-api/codex",
},
)
monkeypatch.setattr(run_agent, "OpenAI", _fake_openai)
agent.client = _ExistingClient()
ok = agent._try_refresh_codex_client_credentials(force=True)
assert ok is True
assert closed["value"] is True
assert rebuilt["kwargs"]["api_key"] == "new-codex-token"
assert rebuilt["kwargs"]["base_url"] == "https://chatgpt.com/backend-api/codex"
assert isinstance(agent.client, _RebuiltClient)
def test_run_conversation_codex_tool_round_trip(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [_codex_tool_call_response(), _codex_message_response("done")]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("run a command")
assert result["completed"] is True
assert result["final_response"] == "done"
assert any(msg.get("tool_calls") for msg in result["messages"] if msg.get("role") == "assistant")
assert any(msg.get("role") == "tool" and msg.get("tool_call_id") == "call_1" for msg in result["messages"])
def test_chat_messages_to_responses_input_uses_call_id_for_function_call(monkeypatch):
agent = _build_agent(monkeypatch)
items = agent._chat_messages_to_responses_input(
[
{"role": "user", "content": "Run terminal"},
{
"role": "assistant",
"content": "",
"tool_calls": [
{
"id": "call_abc123",
"type": "function",
"function": {"name": "terminal", "arguments": "{}"},
}
],
},
{"role": "tool", "tool_call_id": "call_abc123", "content": '{"ok":true}'},
]
)
function_call = next(item for item in items if item.get("type") == "function_call")
function_output = next(item for item in items if item.get("type") == "function_call_output")
assert function_call["call_id"] == "call_abc123"
assert "id" not in function_call
assert function_output["call_id"] == "call_abc123"
def test_chat_messages_to_responses_input_accepts_call_pipe_fc_ids(monkeypatch):
agent = _build_agent(monkeypatch)
items = agent._chat_messages_to_responses_input(
[
{"role": "user", "content": "Run terminal"},
{
"role": "assistant",
"content": "",
"tool_calls": [
{
"id": "call_pair123|fc_pair123",
"type": "function",
"function": {"name": "terminal", "arguments": "{}"},
}
],
},
{"role": "tool", "tool_call_id": "call_pair123|fc_pair123", "content": '{"ok":true}'},
]
)
function_call = next(item for item in items if item.get("type") == "function_call")
function_output = next(item for item in items if item.get("type") == "function_call_output")
assert function_call["call_id"] == "call_pair123"
assert "id" not in function_call
assert function_output["call_id"] == "call_pair123"
def test_preflight_codex_api_kwargs_strips_optional_function_call_id(monkeypatch):
agent = _build_agent(monkeypatch)
preflight = agent._preflight_codex_api_kwargs(
{
"model": "gpt-5-codex",
"instructions": "You are Hermes.",
"input": [
{"role": "user", "content": "hi"},
{
"type": "function_call",
"id": "call_bad",
"call_id": "call_good",
"name": "terminal",
"arguments": "{}",
},
],
"tools": [],
"store": False,
}
)
fn_call = next(item for item in preflight["input"] if item.get("type") == "function_call")
assert fn_call["call_id"] == "call_good"
assert "id" not in fn_call
def test_preflight_codex_api_kwargs_rejects_function_call_output_without_call_id(monkeypatch):
agent = _build_agent(monkeypatch)
with pytest.raises(ValueError, match="function_call_output is missing call_id"):
agent._preflight_codex_api_kwargs(
{
"model": "gpt-5-codex",
"instructions": "You are Hermes.",
"input": [{"type": "function_call_output", "output": "{}"}],
"tools": [],
"store": False,
}
)
def test_preflight_codex_api_kwargs_rejects_unsupported_request_fields(monkeypatch):
agent = _build_agent(monkeypatch)
kwargs = _codex_request_kwargs()
kwargs["some_unknown_field"] = "value"
with pytest.raises(ValueError, match="unsupported field"):
agent._preflight_codex_api_kwargs(kwargs)
def test_preflight_codex_api_kwargs_allows_reasoning_and_temperature(monkeypatch):
agent = _build_agent(monkeypatch)
kwargs = _codex_request_kwargs()
kwargs["reasoning"] = {"effort": "high", "summary": "auto"}
kwargs["include"] = ["reasoning.encrypted_content"]
kwargs["temperature"] = 0.7
kwargs["max_output_tokens"] = 4096
result = agent._preflight_codex_api_kwargs(kwargs)
assert result["reasoning"] == {"effort": "high", "summary": "auto"}
assert result["include"] == ["reasoning.encrypted_content"]
assert result["temperature"] == 0.7
assert result["max_output_tokens"] == 4096
def test_run_conversation_codex_replay_payload_keeps_call_id(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [_codex_tool_call_response(), _codex_message_response("done")]
requests = []
def _fake_api_call(api_kwargs):
requests.append(api_kwargs)
return responses.pop(0)
monkeypatch.setattr(agent, "_interruptible_api_call", _fake_api_call)
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("run a command")
assert result["completed"] is True
assert result["final_response"] == "done"
assert len(requests) >= 2
replay_input = requests[1]["input"]
function_call = next(item for item in replay_input if item.get("type") == "function_call")
function_output = next(item for item in replay_input if item.get("type") == "function_call_output")
assert function_call["call_id"] == "call_1"
assert "id" not in function_call
assert function_output["call_id"] == "call_1"
def test_run_conversation_codex_continues_after_incomplete_interim_message(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [
_codex_incomplete_message_response("I'll inspect the repo structure first."),
_codex_tool_call_response(),
_codex_message_response("Architecture summary complete."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("analyze repo")
assert result["completed"] is True
assert result["final_response"] == "Architecture summary complete."
assert any(
msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
and "inspect the repo structure" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(msg.get("role") == "tool" and msg.get("tool_call_id") == "call_1" for msg in result["messages"])
def test_normalize_codex_response_marks_commentary_only_message_as_incomplete(monkeypatch):
agent = _build_agent(monkeypatch)
assistant_message, finish_reason = agent._normalize_codex_response(
_codex_commentary_message_response("I'll inspect the repository first.")
)
assert finish_reason == "incomplete"
assert "inspect the repository" in (assistant_message.content or "")
def test_run_conversation_codex_continues_after_commentary_phase_message(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [
_codex_commentary_message_response("I'll inspect the repo structure first."),
_codex_tool_call_response(),
_codex_message_response("Architecture summary complete."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("analyze repo")
assert result["completed"] is True
assert result["final_response"] == "Architecture summary complete."
assert any(
msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
and "inspect the repo structure" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(msg.get("role") == "tool" and msg.get("tool_call_id") == "call_1" for msg in result["messages"])
def test_run_conversation_codex_continues_after_ack_stop_message(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [
_codex_ack_message_response(
"Absolutely — I can do that. I'll inspect ~/openclaw-studio and report back with a walkthrough."
),
_codex_tool_call_response(),
_codex_message_response("Architecture summary complete."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("look into ~/openclaw-studio and tell me how it works")
assert result["completed"] is True
assert result["final_response"] == "Architecture summary complete."
assert any(
msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
and "inspect ~/openclaw-studio" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(
msg.get("role") == "user"
and "Continue now. Execute the required tool calls" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(msg.get("role") == "tool" and msg.get("tool_call_id") == "call_1" for msg in result["messages"])
def test_run_conversation_codex_continues_after_ack_for_directory_listing_prompt(monkeypatch):
agent = _build_agent(monkeypatch)
responses = [
_codex_ack_message_response(
"I'll check what's in the current directory and call out 3 notable items."
),
_codex_tool_call_response(),
_codex_message_response("Directory summary complete."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
def _fake_execute_tool_calls(assistant_message, messages, effective_task_id):
for call in assistant_message.tool_calls:
messages.append(
{
"role": "tool",
"tool_call_id": call.id,
"content": '{"ok":true}',
}
)
monkeypatch.setattr(agent, "_execute_tool_calls", _fake_execute_tool_calls)
result = agent.run_conversation("look at current directory and list 3 notable things")
assert result["completed"] is True
assert result["final_response"] == "Directory summary complete."
assert any(
msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
and "current directory" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(
msg.get("role") == "user"
and "Continue now. Execute the required tool calls" in (msg.get("content") or "")
for msg in result["messages"]
)
assert any(msg.get("role") == "tool" and msg.get("tool_call_id") == "call_1" for msg in result["messages"])
def test_dump_api_request_debug_uses_responses_url(monkeypatch, tmp_path):
"""Debug dumps should show /responses URL when in codex_responses mode."""
import json
agent = _build_agent(monkeypatch)
agent.base_url = "http://127.0.0.1:9208/v1"
agent.logs_dir = tmp_path
dump_file = agent._dump_api_request_debug(_codex_request_kwargs(), reason="preflight")
payload = json.loads(dump_file.read_text())
assert payload["request"]["url"] == "http://127.0.0.1:9208/v1/responses"
def test_dump_api_request_debug_uses_chat_completions_url(monkeypatch, tmp_path):
"""Debug dumps should show /chat/completions URL for chat_completions mode."""
import json
_patch_agent_bootstrap(monkeypatch)
agent = run_agent.AIAgent(
model="gpt-4o",
base_url="http://127.0.0.1:9208/v1",
api_key="test-key",
quiet_mode=True,
max_iterations=1,
skip_context_files=True,
skip_memory=True,
)
agent.logs_dir = tmp_path
dump_file = agent._dump_api_request_debug(
{"model": "gpt-4o", "messages": [{"role": "user", "content": "hi"}]},
reason="preflight",
)
payload = json.loads(dump_file.read_text())
assert payload["request"]["url"] == "http://127.0.0.1:9208/v1/chat/completions"
fix(codex): handle reasoning-only responses and replay path (#2070) * fix(codex): treat reasoning-only responses as incomplete, not stop When a Codex Responses API response contains only reasoning items (encrypted thinking state) with no message text or tool calls, the _normalize_codex_response method was setting finish_reason='stop'. This sent the response into the empty-content retry loop, which burned 3 retries and then failed — exactly the pattern Nester reported in Discord. Two fixes: 1. _normalize_codex_response: reasoning-only responses (reasoning_items_raw non-empty but no final_text) now get finish_reason='incomplete', routing them to the Codex continuation path instead of the retry loop. 2. Incomplete handling: also checks for codex_reasoning_items when deciding whether to preserve an interim message, so encrypted reasoning state is not silently dropped when there is no visible reasoning text. Adds 4 regression tests covering: - Unit: reasoning-only → incomplete, reasoning+content → stop - E2E: reasoning-only → continuation → final answer succeeds - E2E: encrypted reasoning items preserved in interim messages * fix(codex): ensure reasoning items have required following item in API input Follow-up to the reasoning-only response fix. Three additional issues found by tracing the full replay path: 1. _chat_messages_to_responses_input: when a reasoning-only interim message was converted to Responses API input, the reasoning items were emitted as the last items with no following item. The Responses API requires a following item after each reasoning item (otherwise: 'missing_following_item' error, as seen in OpenHands #11406). Now emits an empty assistant message as the required following item when content is empty but reasoning items were added. 2. Duplicate detection: two consecutive reasoning-only incomplete messages with identical empty content/reasoning but different encrypted codex_reasoning_items were incorrectly treated as duplicates, silently dropping the second response's reasoning state. Now includes codex_reasoning_items in the duplicate comparison. 3. Added tests for both the API input conversion path and the duplicate detection edge case. Research context: verified against OpenCode (uses Vercel AI SDK, no retry loop so avoids the issue), Clawdbot (drops orphaned reasoning blocks entirely), and OpenHands (hit the missing_following_item error). Our approach preserves reasoning continuity while satisfying the API constraint. --------- Co-authored-by: Test <test@test.com>
2026-03-19 10:34:44 -07:00
# --- Reasoning-only response tests (fix for empty content retry loop) ---
def _codex_reasoning_only_response(*, encrypted_content="enc_abc123", summary_text="Thinking..."):
"""Codex response containing only reasoning items — no message text, no tool calls."""
return SimpleNamespace(
output=[
SimpleNamespace(
type="reasoning",
id="rs_001",
encrypted_content=encrypted_content,
summary=[SimpleNamespace(type="summary_text", text=summary_text)],
status="completed",
)
],
usage=SimpleNamespace(input_tokens=50, output_tokens=100, total_tokens=150),
status="completed",
model="gpt-5-codex",
)
def test_normalize_codex_response_marks_reasoning_only_as_incomplete(monkeypatch):
"""A response with only reasoning items and no content should be 'incomplete', not 'stop'.
Without this fix, reasoning-only responses get finish_reason='stop' which
sends them into the empty-content retry loop (3 retries then failure).
"""
agent = _build_agent(monkeypatch)
assistant_message, finish_reason = agent._normalize_codex_response(
_codex_reasoning_only_response()
)
assert finish_reason == "incomplete"
assert assistant_message.content == ""
assert assistant_message.codex_reasoning_items is not None
assert len(assistant_message.codex_reasoning_items) == 1
assert assistant_message.codex_reasoning_items[0]["encrypted_content"] == "enc_abc123"
def test_normalize_codex_response_reasoning_with_content_is_stop(monkeypatch):
"""If a response has both reasoning and message content, it should still be 'stop'."""
agent = _build_agent(monkeypatch)
response = SimpleNamespace(
output=[
SimpleNamespace(
type="reasoning",
id="rs_001",
encrypted_content="enc_xyz",
summary=[SimpleNamespace(type="summary_text", text="Thinking...")],
status="completed",
),
SimpleNamespace(
type="message",
content=[SimpleNamespace(type="output_text", text="Here is the answer.")],
status="completed",
),
],
usage=SimpleNamespace(input_tokens=50, output_tokens=100, total_tokens=150),
status="completed",
model="gpt-5-codex",
)
assistant_message, finish_reason = agent._normalize_codex_response(response)
assert finish_reason == "stop"
assert "Here is the answer" in assistant_message.content
def test_run_conversation_codex_continues_after_reasoning_only_response(monkeypatch):
"""End-to-end: reasoning-only → final message should succeed, not hit retry loop."""
agent = _build_agent(monkeypatch)
responses = [
_codex_reasoning_only_response(),
_codex_message_response("The final answer is 42."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
result = agent.run_conversation("what is the answer?")
assert result["completed"] is True
assert result["final_response"] == "The final answer is 42."
# The reasoning-only turn should be in messages as an incomplete interim
assert any(
msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
and msg.get("codex_reasoning_items") is not None
for msg in result["messages"]
)
def test_run_conversation_codex_preserves_encrypted_reasoning_in_interim(monkeypatch):
"""Encrypted codex_reasoning_items must be preserved in interim messages
even when there is no visible reasoning text or content."""
agent = _build_agent(monkeypatch)
# Response with encrypted reasoning but no human-readable summary
reasoning_response = SimpleNamespace(
output=[
SimpleNamespace(
type="reasoning",
id="rs_002",
encrypted_content="enc_opaque_blob",
summary=[],
status="completed",
)
],
usage=SimpleNamespace(input_tokens=50, output_tokens=100, total_tokens=150),
status="completed",
model="gpt-5-codex",
)
responses = [
reasoning_response,
_codex_message_response("Done thinking."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
result = agent.run_conversation("think hard")
assert result["completed"] is True
assert result["final_response"] == "Done thinking."
# The interim message must have codex_reasoning_items preserved
interim_msgs = [
msg for msg in result["messages"]
if msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
]
assert len(interim_msgs) >= 1
assert interim_msgs[0].get("codex_reasoning_items") is not None
assert interim_msgs[0]["codex_reasoning_items"][0]["encrypted_content"] == "enc_opaque_blob"
def test_chat_messages_to_responses_input_reasoning_only_has_following_item(monkeypatch):
"""When converting a reasoning-only interim message to Responses API input,
the reasoning items must be followed by an assistant message (even if empty)
to satisfy the API's 'required following item' constraint."""
agent = _build_agent(monkeypatch)
messages = [
{"role": "user", "content": "think hard"},
{
"role": "assistant",
"content": "",
"reasoning": None,
"finish_reason": "incomplete",
"codex_reasoning_items": [
{"type": "reasoning", "id": "rs_001", "encrypted_content": "enc_abc", "summary": []},
],
},
]
items = agent._chat_messages_to_responses_input(messages)
# Find the reasoning item
reasoning_indices = [i for i, it in enumerate(items) if it.get("type") == "reasoning"]
assert len(reasoning_indices) == 1
ri_idx = reasoning_indices[0]
# There must be a following item after the reasoning
assert ri_idx < len(items) - 1, "Reasoning item must not be the last item (missing_following_item)"
following = items[ri_idx + 1]
assert following.get("role") == "assistant"
def test_duplicate_detection_distinguishes_different_codex_reasoning(monkeypatch):
"""Two consecutive reasoning-only responses with different encrypted content
must NOT be treated as duplicates."""
agent = _build_agent(monkeypatch)
responses = [
# First reasoning-only response
SimpleNamespace(
output=[
SimpleNamespace(
type="reasoning", id="rs_001",
encrypted_content="enc_first", summary=[], status="completed",
)
],
usage=SimpleNamespace(input_tokens=50, output_tokens=100, total_tokens=150),
status="completed", model="gpt-5-codex",
),
# Second reasoning-only response (different encrypted content)
SimpleNamespace(
output=[
SimpleNamespace(
type="reasoning", id="rs_002",
encrypted_content="enc_second", summary=[], status="completed",
)
],
usage=SimpleNamespace(input_tokens=50, output_tokens=100, total_tokens=150),
status="completed", model="gpt-5-codex",
),
_codex_message_response("Final answer after thinking."),
]
monkeypatch.setattr(agent, "_interruptible_api_call", lambda api_kwargs: responses.pop(0))
result = agent.run_conversation("think very hard")
assert result["completed"] is True
assert result["final_response"] == "Final answer after thinking."
# Both reasoning-only interim messages should be in history (not collapsed)
interim_msgs = [
msg for msg in result["messages"]
if msg.get("role") == "assistant"
and msg.get("finish_reason") == "incomplete"
]
assert len(interim_msgs) == 2
encrypted_contents = [
msg["codex_reasoning_items"][0]["encrypted_content"]
for msg in interim_msgs
]
assert "enc_first" in encrypted_contents
assert "enc_second" in encrypted_contents