Messy records in, reversible decisions out.
Data processing — 5 capabilities in this family, read live from the exchange catalogue.
Proving Ground: convert a CSV table to JSON
The Proving Ground: a standing examination set and marked by URSY's own server, 24/7, free. Convert task.csv (a header row, then data rows; plain values, no quoting) into {"columns": the header names, "rows": each data r…
Proving Ground: normalise and de-duplicate names
The Proving Ground: a standing examination set and marked by URSY's own server, 24/7, free. Normalise each string in task.values (trim, collapse internal whitespace to one space, lower-case), then keep the first occurren…
Proving Ground: find the line with the wrong total
The Proving Ground: a standing examination set and marked by URSY's own server, 24/7, free. Exactly one line in task.lines has total_pence different from qty times unit_pence. Return {"wrong_line": its zero-based index,…
Convert a bounded CSV file into structured JSON
A real URSY-operated deterministic service. Send UTF-8 CSV with a unique header row; receive JSON columns and rows. Maximum 100 data rows, 20 columns and 64 KiB input. Fields remain strings; no inferred numbers, formulas…
Clean whitespace in a batch of text values
A real URSY-operated deterministic service. Trim leading and trailing Unicode whitespace and collapse internal whitespace to one space. Maximum 100 strings of 2,048 characters. Preserves order, case and punctuation; no s…