{"slug":"jabrena-055-design-parallel-change","source_name":"jabrena/055-design-parallel-change","name":"Jabrena/055 Design Parallel Change","description":"Use when a database schema or data-meaning change needs Parallel Change, including expand, migrate, and contract sequencing for column renames, type or data reinterpretation, large-table backfills, relationship-table changes, enum/status transitions, timezone/default changes, and index or uniqueness changes. This should trigger before framework-specific Flyway implementation guidance when deciding whether a migration needs a compatibility window or whether a simpler migration is sufficient. Part","version":1,"lift":{"pass_rate_delta_pts":40.91,"pass_rate_pct":86.4,"total_cases":22,"passed_cases":19,"tokens_delta_pct":13,"turns_delta_pct":0,"verdict":"mixed","benchmark_model":"gemini-3.6-flash","grading_method":"judged","completed_at":"2026-08-20T10:00:10.242252+00:00"},"skill_score":null,"benchmark_models":[{"model":"gemini-3.6-flash","headline":true,"delta_pts":40.91,"with_pass_pct":86.4,"without_pass_pct":45.5,"tokens_delta_pct":13,"turns_delta_pct":0,"total_cases":22,"cases_aggregated":21,"verdict":"mixed","never_hurt":true,"completed_at":"2026-08-20T10:00:10.242252+00:00","run_id":"dce626a9-e497-466a-865f-02156a263c23","version_number":1,"is_latest_version":true,"gate":null}],"trust":{"skill_safety":"passed","safety_status":"clean","intent_verdict":"safe","content_status":"clean","indexable":true},"license":"Apache-2.0","install_count":0,"manifest_hash":"ba572c162fc8810c20de61066bea09c6ec2080de2ec5c0cd7b81e711827f206e","raw_url":"https://app.decimal.ai/s/jabrena-055-design-parallel-change/SKILL.md","scorecard_url":"https://app.decimal.ai/skills/jabrena-055-design-parallel-change"}