Sample: 2149 -> 968 bytes (55.0% smaller)
✔ replaces precisely one span; preserves the source and all surrounding metadata (4.567209ms)
✔ rejects malformed JSON, unsupported schema, duplicate ids, oversized input and bad spans (1.450166ms)
✔ unique replacement ids, UTF-8 accounting, negative savings and safe Markdown fences (0.13825ms)
✔ sample reduction is measured and generated artifacts are current (0.856875ms)
ℹ tests 4
ℹ suites 0
ℹ pass 4
ℹ fail 0
ℹ cancelled 0
ℹ skipped 0
ℹ todo 0
ℹ duration_ms 56.056042
