Comparing
Two documents, compared by what they mean rather than by line order.
In the app
Compare (⌘D) takes a second document — another tab, a paste — and shows only the real differences: reordered keys are not a change, and a log is matched by record rather than by line order.
The Head reads “→ name · N added · M changed”, and the swap is one sentence in the Foot.
Across the two shapes
A verb is implemented once per shape, not once per format. That is why a CSV gets the same tools as a webhook payload: both collapse to one of two shapes before any verb runs.
How the shapes differ for diff: Document: path-level · Records: keyed.
- document · JSON, YAML, XML
- records · NDJSON, CSV, TSV, Markdown table, Log
A worked example
Two revisions of a service manifest, the pair the Compare picker offers. By structure: 2 added, 5 changed, 0 removed paths, 6 unchanged subtrees skipped. The same pair as text: 1 lines added, 6 changed, 0 removed — the count a line diff gives when a key moves or a list grows.