May 2026 monthly summary for moltbot/moltbot focused on strengthening cost reporting accuracy and introducing operator-configured pricing handling to support reliable budgeting and financial visibility. Delivered two intertwined improvements: (1) bug fixes around usage-cost reporting and (2) a new pricing reader that distinguishes between unknown pricing and intentional zero-cost entries. Implemented cache invalidation to ensure stale data is rebuilt after semantic changes, and added regression tests to cover critical paths. These changes improve dashboards and alerts for spend, reduce false negatives/positives in budget monitoring, and maintain compatibility for operator-configured zero-cost models. Key skills demonstrated include cost-reporting pipelines, cache/version management, configuration-driven pricing, and regression testing.