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feat(models): add tool_reference, server_tool_use, and tool_search_tool_result content blocks #108

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feat(models): add tool_reference, server_tool_use, and tool_search_tool_result content blocks #108

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33 changes: 30 additions & 3 deletions kiro/models_anthropic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -78,21 +78,45 @@ class ToolUseContentBlock(BaseModel):
input: Dict[str, Any]


class ToolReferenceContentBlock(BaseModel):
"""Tool reference block used by Anthropic's tool search / defer_loading feature."""

type: Literal["tool_reference"] = "tool_reference"
tool_name: str
model_config = {"extra": "allow"}


class ServerToolUseContentBlock(BaseModel):
"""Server-side tool use block (e.g., tool_search invocations handled by Anthropic API)."""

type: Literal["server_tool_use"] = "server_tool_use"
model_config = {"extra": "allow"}


class ToolSearchResultContentBlock(BaseModel):
"""Tool search result block returned by Anthropic's tool search feature."""

type: Literal["tool_search_tool_result"] = "tool_search_tool_result"
model_config = {"extra": "allow"}


class ToolResultContentBlock(BaseModel):
"""
Tool result content block in Anthropic format.

Represents the result of a tool call, sent by the user.
Tool results can contain text, images, or a mix of both.
Tool results can contain text, images, tool references, or a mix.
"""

type: Literal["tool_result"] = "tool_result"
tool_use_id: str
content: Optional[
Union[str, List[Union["TextContentBlock", "ImageContentBlock"]]]
Union[str, List[Union["TextContentBlock", "ImageContentBlock", "ToolReferenceContentBlock"]]]
] = None
is_error: Optional[bool] = None

model_config = {"extra": "allow"}


# ==================================================================================================
# Image Content Block Models
Expand Down Expand Up @@ -146,13 +170,16 @@ class ImageContentBlock(BaseModel):
source: Union[Base64ImageSource, URLImageSource]


# Union type for all content blocks (including images and thinking)
# Union type for all content blocks (including images, thinking, and tool search)
ContentBlock = Union[
TextContentBlock,
ThinkingContentBlock,
ImageContentBlock,
ToolUseContentBlock,
ToolResultContentBlock,
ToolReferenceContentBlock,
ServerToolUseContentBlock,
ToolSearchResultContentBlock,
]


Expand Down