Repeatability
High
The task is structurally identical across all 18 files: read, map columns, normalize, append. Once the column-mapping logic is built, it applies uniformly and can be reused for future monthly files.
Ambiguity Tolerance
High
The target schema is explicitly defined (Date, Client, Campaign, Clicks, Impressions, Cost, Conversions), and success is objectively verifiable by row count, column presence, and spot-checking values against source files.
Data & Tool Availability
High
All 18 Excel files are already in hand and can be uploaded directly to an agent or script environment. No API access, credentials, or live system connections are required.
Error Cost
Low
Source files are untouched, so any mapping error is fully reversible by re-running the script. The output is a reporting artifact, not a transactional or financial record that triggers downstream irreversible actions.
Human Judgment Required
Low
Column aliasing (e.g., 'Spend' → 'Cost') is a deterministic lookup problem, not a judgment call. Edge cases like ambiguous column names may need a one-time human review of the mapping table, but the bulk of the work requires no intuition.