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fix(workflows): support chunked card number reading #6448

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fix(workflows): support chunked card number reading #6448

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6 changes: 5 additions & 1 deletion livekit-agents/livekit/agents/beta/workflows/credit_card.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,9 @@
Handle input as noisy voice transcription. Expect users to read the card number digit by digit.
Normalize spoken digits silently: 'four' → 4, 'zero' / 'oh' → 0.
Filter out filler words or hesitations.
Users may read the number in groups (for example four digits at a time), pausing for you between groups.
Support this: acknowledge each group briefly without repeating any digits (for example 'Okay, and the next four?') and keep collecting until the whole number has been read.
Keep the groups in the order they were given and treat them as one number.
"""

_CARD_NUMBER_TEXT_SPECIFIC = """
Expand Down Expand Up @@ -217,9 +220,10 @@ def _build_update_card_number_tool(self) -> llm.FunctionTool:
@function_tool(flags=flags)
async def update_card_number(context: RunContext, card_number: str) -> str | None:
"""Call to record the user's card number. Only call once the entire number has been given, do not call in increments.
If the user read the number in groups across several turns, concatenate all groups in the order they were given and call this once with the complete number.

Args:
card_number (str): The credit card number as a string with no dashes or spaces
card_number (str): The complete credit card number as a string with no dashes or spaces
"""
return await self._update_card_number_impl(context, card_number)

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