Update to Aivana Database Engineer

{
  "name": "autonomous-experiment-planner",
  "description": "Designs dry-run experiments across query rewrites, indexes, workload twins, and rollout gates.",
  "included_files": [],
  "skill_md_contents": "---\nname: autonomous-experiment-planner\ndescription: Designs dry-run experiments across query rewrites, indexes, workload twins, and rollout gates.\n---\n\n# Autonomous Experiment Planner\n\n## Use when\n- An operator goal needs evidence before any change recommendation.\n\n## Governance\n- Experiments must be `dry_run`.\n- Abort if an experiment requires real apply, lacks rollback, or has unknown tenant scope.\n\n## Output\n- `experiments`, `abortCriteria`, `decision`, `safeNextAction`\n"
}