Error Boundaries / Hidden Errors
Kind: tension
Record: tension:error-boundaries-hidden-errors
Canonical: Schema
"error-boundaries" (correctness-core layer) is traded against "Hidden Errors" (correctness-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Hidden Errors" and choosing an explicit operating point.
Listed in Tensions, after Error Handling / Simplicity and before Fallback Pattern / Stale/Reduced Results.