Methodology

methodology_version 2026.09.0. Record scheduled allocation attempts for allowlisted shapes × regions.

Attempt fields

• outcome — success · failure · timeout · error
• tt_allocate_ms · error_class
• shape · region · provider · observed_at

Index (v1)

capacity.obtainability.success_rate_24h — fraction of attempts with outcome=success in a rolling 24-hour window.

Phase 1 probe mode

Worker-safe JSON fixtures only. Live create→measure→destroy is gated on COMPUTE-COST.md.