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Design

  • Define parameters with clear types
  • Implement robust error handling
  • Return structured results for flows

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Example

inventory_tool.py
class Params(TypedDict):
    sku: str

def handler(params: Params):
    stock = lookup_inventory(params["sku"])  # your logic
    return {"in_stock": stock > 0, "stock": stock}

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Publishing

  • Version tools with notes
  • Test in Dev/UAT before Prod
  • Monitor usage and errors