Manifest schema

The manifest is a JSON file that records every screenshot comparison a test run made: what was compared, against which baseline, and how it went. The test tool writes it. Everything after that, a PR comment bot, a review dashboard, an approval tool, reads the file instead of having to understand the runner.

The format is open and not tied to pixsame or to any runner. It lives at visual-regression.dev/manifest in the visual-regression repository, together with the field reference, converters for other runners and a viewer. On npm, visual-regression-manifest has the JSON Schema, the types, and a reader, writer and merger.

Every pixsame tool reads and writes it. The GitHub App and the hosted platform will take a manifest from any runner that produces one, ours or somebody else's.