Repeatability
High
Phone normalization and deduplication follow deterministic rules that apply identically across all 3,200 rows. The same logic runs every time with no instance-by-instance judgment required.
Ambiguity Tolerance
High
Success criteria are explicit: E.164 format, dedup by phone number, consolidate by customer ID keeping the most recent record, and flag validation failures. There is little room for interpretation about what 'done' looks like.
Data & Tool Availability
High
The agent needs only the Excel file and a scripting environment (Python with pandas and phonenumbers library covers everything). No external APIs, credentials, or live systems are required.
Error Cost
Low
The original file is preserved and the output is a new cleaned file, making this fully reversible. Validation flags surface uncertain records for human review rather than silently corrupting them.
Human Judgment Required
Low
The rules are algorithmic: parse, normalize, deduplicate, flag. The only edge cases — ambiguous country codes or unparseable numbers — are surfaced as flags for a human to review rather than requiring judgment mid-task.