Self-Describing Structures / Size Overhead
Kind: tension
Record: tension:self-describing-structures-size-overhead
Canonical: Schema
"self-describing-structures" (declarative-core layer) is traded against "Size Overhead" (declarative-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Size Overhead" and choosing an explicit operating point.
Listed in Tensions, after Self-Describing API / Payload Verbosity and before Metadata-Driven Design / Debuggability.