FilesystemClaudeTextEditorMiddleware Class — langchain Architecture

Source Code

libs/partners/anthropic/langchain_anthropic/middleware/anthropic_tools.py lines 1064–1107

class FilesystemClaudeTextEditorMiddleware(_FilesystemClaudeFileToolMiddleware):
    """Filesystem-based text editor tool middleware.

    Provides Anthropic's `text_editor` tool using local filesystem for storage.
    User handles persistence via volumes, git, or other mechanisms.

    Example:
        ```python
        from langchain.agents import create_agent
        from langchain.agents.middleware import FilesystemTextEditorToolMiddleware

        agent = create_agent(
            model=model,
            tools=[],
            middleware=[FilesystemTextEditorToolMiddleware(root_path="/workspace")],
        )
        ```
    """

    def __init__(
        self,
        *,
        root_path: str,
        allowed_prefixes: list[str] | None = None,
        max_file_size_mb: int = 10,
    ) -> None:
        """Initialize the text editor middleware.

        Args:
            root_path: Root directory for file operations.
            allowed_prefixes: Optional list of allowed virtual path prefixes.

                Defaults to `['/']`.
            max_file_size_mb: Maximum file size in MB

                Defaults to `10`.
        """
        super().__init__(
            tool_type=TEXT_EDITOR_TOOL_TYPE,
            tool_name=TEXT_EDITOR_TOOL_NAME,
            root_path=root_path,
            allowed_prefixes=allowed_prefixes,
            max_file_size_mb=max_file_size_mb,
        )