How to use custom tools in crewai for reading a pdf content

[pip-install-skills]

I wrote this custom tool with the intructions on how we create the crewai custom tools from the website. I'm not able to use the given file path

this is the error

I encountered an error while trying to use the tool. This was the error: File path/to/medical_records.pdf does not exist..
 Tool PDF Reader accepts these inputs: Tool Name: PDF Reader
Tool Arguments: {'pdf_path': {'description': None, 'type': 'str'}}
Tool Description: Reads the content of a pdf file and returns the text.

This is my code:

class PDFReaderTool(BaseTool):
    name: str = "PDF Reader"
    description: str = "Reads the content of a pdf file and returns the text."

    def _run(self, pdf_path: str) -> str:
        documents = SimpleDirectoryReader(
            input_files=[pdf_path], 
            file_extractor=file_extractor
        ).load_data()
        text = ""
        for doc in documents:
            text += f"{str(doc)} + '\n'" 
        return text


pdf_reader_agent = Agent(
    role='File reader Agent',
    goal="""Extract text from the file for further processing.""",
    backstory='An assistant that reads files and extracts content and return the output as medical_records',
    llm=default_llm,
    tools=[PDFReaderTool()],
    verbose=True
)


pdf_file_reader_task = Task(
    description="Read content from the provided file and return the medical_records",
    expected_output="""Extracted text from the file.""", 
    agent=pdf_reader_agent,
    inputs=["pdf_path"],
    outputs=["medical_records"]
)

result = crew.kickoff({
    "pdf_path": "C:\\Users\\kalyan\\Downloads\\kimberlycarr\\sandracookfulldoc.pdf",
})

[michaelcizmar]

I believe you need to define a mode for your tool. Something like this:

class PDFParserInput(BaseModel):
    """Input schema for MyCustomTool."""
    pdf_path: str = Field(..., description="The path to the PDF document to parse.")

class PDFParserTool(BaseTool):
    name: str = "PDF Parser Tool"
    description: str = (
        "Clear description for what this tool is useful for, your agent will need this information to use it."
    )
    args_schema: Type[BaseModel] = PDFParserInput

    def _run(self, pdf_path: str) -> str:

Then in your description you need to reference the input. Something like this:

  description: >
    Read the report which is at {pdf_path}