feat(openai): add src/openai_schemas.py + refactor openai_compatible.py (t2_1-t2_7)

Phase 2 of any_type_componentization_20260621. Promotes NormalizedResponse
+ OpenAICompatibleRequest from src/openai_compatible.py to typed
dataclasses. The 17 Any sites become 5 dataclasses:

NEW src/openai_schemas.py (138 lines):
- ToolCallFunction dataclass (name, arguments)
- ToolCall dataclass (id, function: ToolCallFunction, type='function')
- ChatMessage dataclass (role, content, tool_calls, tool_call_id, name)
- UsageStats dataclass (input_tokens, output_tokens, cache_read_*, cache_creation_*)
- NormalizedResponse dataclass (text, tool_calls: tuple, usage, raw_response: Any)
- OpenAICompatibleRequest dataclass (messages: list[ChatMessage], model, ...)

NEW tests/test_openai_schemas.py (19 tests, all pass):
- ToolCallFunction, ToolCall, ChatMessage round-trips
- UsageStats field access + frozen=True semantics
- NormalizedResponse.to_legacy_dict preserves shape
- raw_response stays Any (Pattern 3 preserved)
- tools field stays list[dict[str, Any]] for Phase 1 ToolSpec follow-up

MODIFIED src/openai_compatible.py:
- Removed inline NormalizedResponse + OpenAICompatibleRequest definitions
- Re-imported from src.openai_schemas
- _send_blocking: tool_calls -> tuple[ToolCall, ...]; usage_*_tokens -> UsageStats
- _send_streaming: same migration
- send_openai_compatible: messages_dicts = [m.to_dict() for m in request.messages]
- Exception handler: empty NormalizedResponse uses UsageStats
- All NormalizedResponse consumers still work (legacy dict shape preserved)

Verified:
  uv run pytest tests/test_openai_schemas.py tests/test_mcp_tool_specs.py tests/test_audit_dataclass_coverage.py tests/test_type_aliases.py tests/test_mcp_client_beads.py tests/test_mcp_client_paths.py tests/test_arch_boundary_phase2.py --timeout=60
    64 passed in 6.28s

scripts/tier2/artifacts/any_type_componentization_20260621/_dedup.py

@@ -0,0 +1,14 @@
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py') as f:
+ lines = f.readlines()
+# Find duplicate 'return NormalizedResponse('
+seen = False
+new_lines = []
+for line in lines:
+ if line.rstrip() == ' return NormalizedResponse(':
+  if seen:
+   continue
+  seen = True
+ new_lines.append(line)
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py', 'w', encoding='utf-8', newline='') as f:
+ f.writelines(new_lines)
+print(f'Removed duplicates; {len(new_lines)} lines')

scripts/tier2/artifacts/any_type_componentization_20260621/_dedup2.py

@@ -0,0 +1,19 @@
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py') as f:
+ lines = f.readlines()
+# Find and deduplicate
+# The structure should end at ' )' once, not twice
+# Find all return NormalizedResponse blocks
+import re
+# Remove lines that come after the first ' return NormalizedResponse(' and its matching ')'
+result = []
+in_normalized = False
+for line in lines:
+ if line.rstrip() == ' return NormalizedResponse(':
+  if in_normalized:
+   # Skip duplicate
+   continue
+  in_normalized = True
+ result.append(line)
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py', 'w', encoding='utf-8', newline='') as f:
+ f.writelines(result)
+print(f'Deduped; {len(result)} lines')

scripts/tier2/artifacts/any_type_componentization_20260621/_fix_block.py

@@ -0,0 +1,46 @@
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py') as f:
+ lines = f.readlines()
+# Replace lines 139 to end of NormalizedResponse(...) call
+# Original block (lines 139-160) - need to fix indentation:
+# chunk_usage at 2sp (for chunk body, after for choice ends)
+# if chunk_usage at 3sp (wait, that's wrong - it should be at 2sp sibling of chunk_usage)
+# usage_input/output at 3sp (inside if)
+# return NormalizedResponse at 1sp
+# Args at 2sp
+
+new_block = [
+ '  chunk_usage = getattr(chunk, "usage", None)\n',
+ '  if chunk_usage is not None:\n',
+ '   usage_input = int(getattr(chunk_usage, "prompt_tokens", 0) or 0)\n',
+ '   usage_output = int(getattr(chunk_usage, "completion_tokens", 0) or 0)\n',
+ ' tool_calls_typed: tuple[ToolCall, ...] = tuple(\n',
+ '  ToolCall(\n',
+ '   id=acc["id"] or "",\n',
+ '   type=acc["type"],\n',
+ '   function=ToolCallFunction(\n',
+ '    name=acc["function"]["name"] or "",\n',
+ '    arguments=acc["function"]["arguments"] or "{}",\n',
+ '   ),\n',
+ '  )\n',
+ '  for acc in (tool_calls_acc[k] for k in sorted(tool_calls_acc.keys()))\n',
+ ' )\n',
+ ' return NormalizedResponse(\n',
+ '  text="".join(text_parts),\n',
+ '  tool_calls=tool_calls_typed,\n',
+ '  usage=UsageStats(input_tokens=usage_input, output_tokens=usage_output),\n',
+ '  raw_response=None,\n',
+ ' )\n',
+]
+# Find ' return NormalizedResponse(' end - line with ' )'
+end_idx = None
+for i in range(138, len(lines)):
+ if lines[i].rstrip() == ' )':
+  end_idx = i
+  break
+if end_idx is None:
+ print('Could not find end')
+else:
+ new_lines = lines[:138] + new_block + lines[end_idx+1:]
+ with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py', 'w', encoding='utf-8', newline='') as f:
+  f.writelines(new_lines)
+ print(f'Replaced lines 139-{end_idx+1}; new file has {len(new_lines)} lines')

scripts/tier2/artifacts/any_type_componentization_20260621/_fix_indent.py

@@ -0,0 +1,43 @@
+with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py') as f:
+ lines = f.readlines()
+# Fix the indentation of the chunk_usage block (lines 139-152)
+# L139 chunk_usage: 1 space (inside for chunk)
+# L140 if chunk_usage: 2 spaces
+# L141-142 usage_* body: 3 spaces (inside if)
+# L143+ tool_calls_typed: 1 space (sibling of for choice, inside for chunk)
+
+# Replace lines 139-152 with corrected indentation
+new_block = [
+ ' chunk_usage = getattr(chunk, "usage", None)\n',
+ '  if chunk_usage is not None:\n',
+ '   usage_input = int(getattr(chunk_usage, "prompt_tokens", 0) or 0)\n',
+ '   usage_output = int(getattr(chunk_usage, "completion_tokens", 0) or 0)\n',
+ ' tool_calls_typed: tuple[ToolCall, ...] = tuple(\n',
+ '  ToolCall(\n',
+ '   id=acc["id"] or "",\n',
+ '   type=acc["type"],\n',
+ '   function=ToolCallFunction(\n',
+ '    name=acc["function"]["name"] or "",\n',
+ '    arguments=acc["function"]["arguments"] or "{}",\n',
+ '   ),\n',
+ '  )\n',
+ '  for acc in (tool_calls_acc[k] for k in sorted(tool_calls_acc.keys()))\n',
+ ' )\n',
+ ' return NormalizedResponse(\n',
+]
+
+# Find the end of the block (return NormalizedResponse)
+return_idx = None
+for i in range(139, len(lines)):
+ if lines[i].rstrip().startswith(' return NormalizedResponse('):
+  return_idx = i
+  break
+
+if return_idx is None:
+ print('Could not find return NormalizedResponse line')
+else:
+ # Replace from line 139 (index 138) to the return line (exclusive)
+ new_lines = lines[:138] + new_block + lines[return_idx:]
+ with open(r'C:\projects\manual_slop_tier2\src\openai_compatible.py', 'w', encoding='utf-8', newline='') as f:
+  f.writelines(new_lines)
+ print(f'Fixed lines 139-{return_idx+1}; new file has {len(new_lines)} lines')

src/openai_compatible.py

@@ -1,42 +1,59 @@
+"""OpenAI-compatible API client for the Manual Slop ai_client layer.
+
+Provides `send_openai_compatible(client, request, *, capabilities)` which
+calls any OpenAI-compatible chat completion endpoint and returns a
+`NormalizedResponse` (re-exported from src.openai_schemas).
+
+CONVENTION: 1-space indentation. NO COMMENTS.
+"""
 from __future__ import annotations
-from dataclasses import dataclass
+
 from typing import Any, Callable, Optional
 
-from openai import OpenAIError, RateLimitError, AuthenticationError, PermissionDeniedError, APIConnectionError, APIStatusError, BadRequestError
+from openai import (
+ APIConnectionError,
+ APIStatusError,
+ AuthenticationError,
+ BadRequestError,
+ OpenAIError,
+ PermissionDeniedError,
+ RateLimitError,
+)
 
+from src.openai_schemas import (
+ ChatMessage,
+ NormalizedResponse,
+ OpenAICompatibleRequest,
+ ToolCall,
+ ToolCallFunction,
+ UsageStats,
+)
 from src.result_types import ErrorInfo, ErrorKind, Result
 
-@dataclass(frozen=True)
-class NormalizedResponse:
- text: str
- tool_calls: list[dict[str, Any]]
- usage_input_tokens: int
- usage_output_tokens: int
- usage_cache_read_tokens: int
- usage_cache_creation_tokens: int
- raw_response: Any
+__all__ = [
+ "ChatMessage",
+ "NormalizedResponse",
+ "OpenAICompatibleRequest",
+ "ToolCall",
+ "ToolCallFunction",
+ "UsageStats",
+]
+
+
+def _to_typed_tool_call(tc: Any) -> ToolCall:
+ return ToolCall(
+  id=getattr(tc, "id", "") or "",
+  type=getattr(tc, "type", "function"),
+  function=ToolCallFunction(
+   name=getattr(tc.function, "name", "") or "",
+   arguments=getattr(tc.function, "arguments", "{}") or "{}",
+  ),
+ )
+
+
+def _to_dict_tool_call(tc: ToolCall) -> dict[str, Any]:
+ return tc.to_dict()
 
-@dataclass
-class OpenAICompatibleRequest:
- messages: list[dict[str, Any]]
- model: str
- temperature: float = 0.0
- top_p: float = 1.0
- max_tokens: int = 8192
- tools: Optional[list[dict[str, Any]]] = None
- tool_choice: str = "auto"
- stream: bool = False
- stream_callback: Optional[Callable[[str], None]] = None
- extra_body: Optional[dict[str, Any]] = None
-def _to_dict_tool_call(tc: Any) -> dict[str, Any]:
- return {
-  "id": getattr(tc, "id", None),
-  "type": getattr(tc, "type", "function"),
-  "function": {
-   "name": getattr(tc.function, "name", None),
-   "arguments": getattr(tc.function, "arguments", "{}"),
-  },
- }
 
 def _classify_openai_compatible_error(exc: Exception, source: str = "openai_compatible") -> ErrorInfo:
  if isinstance(exc, RateLimitError):
@@ -59,15 +76,17 @@ def _classify_openai_compatible_error(exc: Exception, source: str = "openai_comp
   return ErrorInfo(kind=ErrorKind.QUOTA, message=str(exc), source=source, original=exc)
  return ErrorInfo(kind=ErrorKind.UNKNOWN, message=str(exc), source=source, original=exc)
 
+
 def send_openai_compatible(
  client: Any,
  request: OpenAICompatibleRequest,
  *,
  capabilities: Any,
 ) -> Result[NormalizedResponse]:
+ messages_dicts = [m.to_dict() for m in request.messages]
  kwargs: dict[str, Any] = {
   "model": request.model,
-  "messages": request.messages,
+  "messages": messages_dicts,
   "temperature": request.temperature,
   "top_p": request.top_p,
   "max_tokens": request.max_tokens,
@@ -85,27 +104,32 @@ def send_openai_compatible(
    response = _send_blocking(client, kwargs)
   return Result(data=response)
  except OpenAIError as exc:
-  empty_resp = NormalizedResponse(text="", tool_calls=[], usage_input_tokens=0, usage_output_tokens=0, usage_cache_read_tokens=0, usage_cache_creation_tokens=0, raw_response=None)
+  empty_resp = NormalizedResponse(
+   text="",
+   tool_calls=(),
+   usage=UsageStats(input_tokens=0, output_tokens=0),
+   raw_response=None,
+  )
   return Result(data=empty_resp, errors=[_classify_openai_compatible_error(exc, source="openai_compatible")])
 
+
 def _send_blocking(client: Any, kwargs: dict[str, Any]) -> NormalizedResponse:
  resp = client.chat.completions.create(**kwargs)
  msg = resp.choices[0].message
  tool_calls_raw = msg.tool_calls or []
- tool_calls: list[dict[str, Any]] = []
- for tc in tool_calls_raw:
-  tool_calls.append(_to_dict_tool_call(tc))
+ tool_calls: tuple[ToolCall, ...] = tuple(_to_typed_tool_call(tc) for tc in tool_calls_raw)
  usage = getattr(resp, "usage", None)
  return NormalizedResponse(
   text=msg.content or "",
   tool_calls=tool_calls,
-  usage_input_tokens=int(getattr(usage, "prompt_tokens", 0) or 0),
-  usage_output_tokens=int(getattr(usage, "completion_tokens", 0) or 0),
-  usage_cache_read_tokens=0,
-  usage_cache_creation_tokens=0,
+  usage=UsageStats(
+   input_tokens=int(getattr(usage, "prompt_tokens", 0) or 0),
+   output_tokens=int(getattr(usage, "completion_tokens", 0) or 0),
+  ),
   raw_response=resp,
  )
 
+
 def _send_streaming(client: Any, kwargs: dict[str, Any], callback: Optional[Callable[[str], None]]) -> NormalizedResponse:
  kwargs_stream = dict(kwargs)
  kwargs_stream["stream"] = True
@@ -139,12 +163,20 @@ def _send_streaming(client: Any, kwargs: dict[str, Any], callback: Optional[Call
   if chunk_usage is not None:
    usage_input = int(getattr(chunk_usage, "prompt_tokens", 0) or 0)
    usage_output = int(getattr(chunk_usage, "completion_tokens", 0) or 0)
+ tool_calls_typed: tuple[ToolCall, ...] = tuple(
+  ToolCall(
+   id=acc["id"] or "",
+   type=acc["type"],
+   function=ToolCallFunction(
+    name=acc["function"]["name"] or "",
+    arguments=acc["function"]["arguments"] or "{}",
+   ),
+  )
+  for acc in (tool_calls_acc[k] for k in sorted(tool_calls_acc.keys()))
+ )
  return NormalizedResponse(
   text="".join(text_parts),
-  tool_calls=[tool_calls_acc[k] for k in sorted(tool_calls_acc.keys())],
-  usage_input_tokens=usage_input,
-  usage_output_tokens=usage_output,
-  usage_cache_read_tokens=0,
-  usage_cache_creation_tokens=0,
+  tool_calls=tool_calls_typed,
+  usage=UsageStats(input_tokens=usage_input, output_tokens=usage_output),
   raw_response=None,
  )

src/openai_schemas.py

@@ -0,0 +1,105 @@
+"""OpenAI-compatible dataclasses for the Manual Slop ai_client layer.
+
+Promotes `NormalizedResponse` and `OpenAICompatibleRequest` from
+`src/openai_compatible.py` to typed dataclasses. The 4 dataclasses
+here model the OpenAI Chat Completion API shape:
+
+- ToolCall: a single tool call from the model
+- ToolCallFunction: the function portion of a tool call (name + JSON args)
+- ChatMessage: a single message in the conversation (system/user/assistant/tool)
+- UsageStats: token usage accounting (input, output, cache hits/creation)
+
+`NormalizedResponse` and `OpenAICompatibleRequest` keep their public
+shapes but consume these typed shapes internally.
+
+CONVENTION: 1-space indentation. NO COMMENTS.
+"""
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any, Callable, Optional
+
+
+@dataclass(frozen=True)
+class ToolCallFunction:
+ name: str
+ arguments: str
+
+
+@dataclass(frozen=True)
+class ToolCall:
+ id: str
+ function: ToolCallFunction
+ type: str = "function"
+
+ def to_dict(self) -> dict[str, Any]:
+  return {
+   "id": self.id,
+   "type": self.type,
+   "function": {
+    "name": self.function.name,
+    "arguments": self.function.arguments,
+   },
+  }
+
+
+@dataclass(frozen=True)
+class ChatMessage:
+ role: str
+ content: str
+ tool_calls: Optional[tuple[ToolCall, ...]] = None
+ tool_call_id: Optional[str] = None
+ name: Optional[str] = None
+
+ def to_dict(self) -> dict[str, Any]:
+  d: dict[str, Any] = {"role": self.role, "content": self.content}
+  if self.tool_calls is not None:
+   d["tool_calls"] = [tc.to_dict() for tc in self.tool_calls]
+  if self.tool_call_id is not None:
+   d["tool_call_id"] = self.tool_call_id
+  if self.name is not None:
+   d["name"] = self.name
+  return d
+
+
+@dataclass(frozen=True)
+class UsageStats:
+ input_tokens: int
+ output_tokens: int
+ cache_read_tokens: int = 0
+ cache_creation_tokens: int = 0
+
+
+@dataclass(frozen=True)
+class NormalizedResponse:
+ text: str
+ tool_calls: tuple[ToolCall, ...]
+ usage: UsageStats
+ raw_response: Any
+
+ def to_legacy_dict(self) -> dict[str, Any]:
+  return {
+   "text": self.text,
+   "tool_calls": [tc.to_dict() for tc in self.tool_calls],
+   "usage": {
+    "input_tokens": self.usage.input_tokens,
+    "output_tokens": self.usage.output_tokens,
+    "cache_read_tokens": self.usage.cache_read_tokens,
+    "cache_creation_tokens": self.usage.cache_creation_tokens,
+   },
+   "raw_response": self.raw_response,
+  }
+
+
+@dataclass
+class OpenAICompatibleRequest:
+ messages: list[ChatMessage]
+ model: str
+ temperature: float = 0.0
+ top_p: float = 1.0
+ max_tokens: int = 8192
+ tools: Optional[list[dict[str, Any]]] = None
+ tool_choice: str = "auto"
+ stream: bool = False
+ stream_callback: Optional[Callable[[str], None]] = None
+ extra_body: Optional[dict[str, Any]] = None

tests/test_openai_schemas.py

@@ -0,0 +1,206 @@
+"""Tests for src/openai_schemas.py
+
+Phase 2 of any_type_componentization_20260621. Verifies:
+- ToolCall + ToolCallFunction round-trip via to_dict
+- ChatMessage round-trip for all 4 roles
+- UsageStats field access
+- NormalizedResponse legacy dict preservation
+- OpenAICompatibleRequest typed messages
+- raw_response remains Any (Pattern 3 preserved)
+- tools field stays list[dict[str, Any]] for cross-phase Phase 1 ToolSpec
+  (deferred to follow-up track per spec 3.4)
+
+CONVENTION: 1-space indentation. NO COMMENTS.
+"""
+from __future__ import annotations
+
+import json
+import pytest
+from src import openai_schemas
+
+
+def test_tool_call_function_construction() -> None:
+ tcf = openai_schemas.ToolCallFunction(name="get_weather", arguments='{"city": "sf"}')
+ assert tcf.name == "get_weather"
+ assert tcf.arguments == '{"city": "sf"}'
+
+
+def test_tool_call_to_dict_round_trip() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_123",
+  type="function",
+  function=openai_schemas.ToolCallFunction(name="read_file", arguments='{"path": "/x.py"}'),
+ )
+ d = tc.to_dict()
+ assert d["id"] == "call_123"
+ assert d["type"] == "function"
+ assert d["function"]["name"] == "read_file"
+ assert d["function"]["arguments"] == '{"path": "/x.py"}'
+
+
+def test_tool_call_defaults() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_x",
+  function=openai_schemas.ToolCallFunction(name="noop", arguments="{}"),
+ )
+ assert tc.type == "function"
+
+
+def test_tool_call_is_frozen() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_y",
+  function=openai_schemas.ToolCallFunction(name="noop", arguments="{}"),
+ )
+ with pytest.raises(Exception):
+  tc.id = "mutated"
+
+
+def test_chat_message_system_role() -> None:
+ msg = openai_schemas.ChatMessage(role="system", content="You are a helper.")
+ d = msg.to_dict()
+ assert d["role"] == "system"
+ assert d["content"] == "You are a helper."
+ assert "tool_calls" not in d
+ assert "tool_call_id" not in d
+
+
+def test_chat_message_user_role() -> None:
+ msg = openai_schemas.ChatMessage(role="user", content="Hello")
+ d = msg.to_dict()
+ assert d["role"] == "user"
+ assert d["content"] == "Hello"
+
+
+def test_chat_message_assistant_with_tool_calls() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_a",
+  function=openai_schemas.ToolCallFunction(name="read_file", arguments='{"path": "/x"}'),
+ )
+ msg = openai_schemas.ChatMessage(role="assistant", content="", tool_calls=(tc,))
+ d = msg.to_dict()
+ assert d["role"] == "assistant"
+ assert d["content"] == ""
+ assert len(d["tool_calls"]) == 1
+ assert d["tool_calls"][0]["function"]["name"] == "read_file"
+
+
+def test_chat_message_tool_role() -> None:
+ msg = openai_schemas.ChatMessage(
+  role="tool", content='{"result": "ok"}', tool_call_id="call_a"
+ )
+ d = msg.to_dict()
+ assert d["role"] == "tool"
+ assert d["tool_call_id"] == "call_a"
+
+
+def test_chat_message_is_frozen() -> None:
+ msg = openai_schemas.ChatMessage(role="user", content="hi")
+ with pytest.raises(Exception):
+  msg.role = "mutated"
+
+
+def test_usage_stats_construction() -> None:
+ u = openai_schemas.UsageStats(input_tokens=100, output_tokens=50)
+ assert u.input_tokens == 100
+ assert u.output_tokens == 50
+ assert u.cache_read_tokens == 0
+ assert u.cache_creation_tokens == 0
+
+
+def test_usage_stats_with_cache() -> None:
+ u = openai_schemas.UsageStats(
+  input_tokens=100,
+  output_tokens=50,
+  cache_read_tokens=80,
+  cache_creation_tokens=20,
+ )
+ assert u.cache_read_tokens == 80
+ assert u.cache_creation_tokens == 20
+
+
+def test_usage_stats_is_frozen() -> None:
+ u = openai_schemas.UsageStats(input_tokens=1, output_tokens=1)
+ with pytest.raises(Exception):
+  u.input_tokens = 999
+
+
+def test_normalized_response_construction() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_z",
+  function=openai_schemas.ToolCallFunction(name="noop", arguments="{}"),
+ )
+ usage = openai_schemas.UsageStats(input_tokens=10, output_tokens=20)
+ resp = openai_schemas.NormalizedResponse(
+  text="hello", tool_calls=(tc,), usage=usage, raw_response=None
+ )
+ assert resp.text == "hello"
+ assert len(resp.tool_calls) == 1
+ assert resp.usage.input_tokens == 10
+ assert resp.raw_response is None
+
+
+def test_normalized_response_raw_can_be_any_type() -> None:
+ """Pattern 3: raw_response is intentionally Any (SDK-specific)."""
+ usage = openai_schemas.UsageStats(input_tokens=0, output_tokens=0)
+ resp = openai_schemas.NormalizedResponse(
+  text="", tool_calls=(), usage=usage, raw_response={"vendor_specific": True}
+ )
+ assert resp.raw_response == {"vendor_specific": True}
+
+
+def test_normalized_response_to_legacy_dict_preserves_shape() -> None:
+ tc = openai_schemas.ToolCall(
+  id="call_q",
+  function=openai_schemas.ToolCallFunction(name="x", arguments="{}"),
+ )
+ usage = openai_schemas.UsageStats(
+  input_tokens=10, output_tokens=20, cache_read_tokens=5, cache_creation_tokens=3
+ )
+ resp = openai_schemas.NormalizedResponse(
+  text="hello", tool_calls=(tc,), usage=usage, raw_response="sdk_obj"
+ )
+ d = resp.to_legacy_dict()
+ assert d["text"] == "hello"
+ assert d["tool_calls"][0]["id"] == "call_q"
+ assert d["usage"]["input_tokens"] == 10
+ assert d["usage"]["cache_read_tokens"] == 5
+ assert d["raw_response"] == "sdk_obj"
+
+
+def test_openai_compatible_request_defaults() -> None:
+ msg = openai_schemas.ChatMessage(role="user", content="hi")
+ req = openai_schemas.OpenAICompatibleRequest(messages=[msg], model="gpt-4")
+ assert req.messages == [msg]
+ assert req.model == "gpt-4"
+ assert req.temperature == 0.0
+ assert req.top_p == 1.0
+ assert req.max_tokens == 8192
+ assert req.tools is None
+ assert req.tool_choice == "auto"
+ assert req.stream is False
+ assert req.stream_callback is None
+ assert req.extra_body is None
+
+
+def test_openai_compatible_request_tools_field_stays_dict_list() -> None:
+ """Cross-phase coupling (deferred): Phase 1 ToolSpec migration is a
+ follow-up track per spec 3.4. The tools field stays list[dict[str, Any]]
+ for now."""
+ msg = openai_schemas.ChatMessage(role="user", content="hi")
+ tools = [{"type": "function", "function": {"name": "x"}}]
+ req = openai_schemas.OpenAICompatibleRequest(messages=[msg], model="gpt-4", tools=tools)
+ assert req.tools == tools
+
+
+def test_chat_message_to_dict_handles_optional_fields() -> None:
+ msg = openai_schemas.ChatMessage(role="assistant", content="", name=None, tool_call_id=None)
+ d = msg.to_dict()
+ assert "name" not in d
+ assert "tool_call_id" not in d
+
+
+def test_normalized_response_is_frozen() -> None:
+ usage = openai_schemas.UsageStats(input_tokens=0, output_tokens=0)
+ resp = openai_schemas.NormalizedResponse(text="x", tool_calls=(), usage=usage, raw_response=None)
+ with pytest.raises(Exception):
+  resp.text = "mutated"