Paste a *.gymsync.json block below. Everything runs in your browser:
nothing is uploaded.
Validate checks the file (JSON Schema draft 2020-12 + referential rules:
unique ids, known exerciseIds, perSet stage counts, week ranges).
Read as coach turns the same file into a readable report: what was planned,
what actually happened, best sets, cardio volume and where the plan drifted. Use it when an
athlete sends you their block.