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fix: handle OpenClaw message format to resolve 422 validation errors #41

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fix: handle OpenClaw message format to resolve 422 validation errors #41

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32 changes: 25 additions & 7 deletions src/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,26 +18,44 @@ def get_default_model():
class ContentPart(BaseModel):
"""Content part for multimodal messages (OpenAI format)."""

type: Literal["text"]
text: str
type: str
text: Optional[str] = None

model_config = {"extra": "ignore"}


class Message(BaseModel):
role: Literal["system", "user", "assistant"]
content: Union[str, List[ContentPart]]
role: Literal["system", "user", "assistant", "tool"]
content: Optional[Union[str, List[Any]]] = None
name: Optional[str] = None

model_config = {"extra": "ignore"}

@model_validator(mode="after")
def normalize_content(self):
"""Convert array content to string for Claude Code compatibility."""
if self.content is None:
self.content = ""
return self

if isinstance(self.content, list):
# Extract text from content parts and concatenate
text_parts = []
for part in self.content:
if isinstance(part, ContentPart) and part.type == "text":
if isinstance(part, ContentPart) and part.text:
text_parts.append(part.text)
elif isinstance(part, dict) and part.get("type") == "text":
text_parts.append(part.get("text", ""))
elif isinstance(part, dict):
if part.get("type") == "text" and part.get("text"):
text_parts.append(part["text"])
elif part.get("type") == "tool_result":
# Extract text from tool result content
inner = part.get("content", "")
if isinstance(inner, str):
text_parts.append(inner)
elif isinstance(inner, list):
for block in inner:
if isinstance(block, dict) and block.get("text"):
text_parts.append(block["text"])

# Join all text parts with newlines
self.content = "\n".join(text_parts) if text_parts else ""
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