April 2026 monthly summary focusing on key features delivered, major fixes, and technical accomplishments across two repositories: beckn-onix and fabric-token-sdk. Highlights include observability and telemetry improvements in Beckn Onix and a performance optimization in Fabric Token SDK that reduces cryptographic recomputation. The work delivered business value through better operational visibility, faster incident diagnosis, and more scalable proofs/verification. Key outcomes: - Beckn Action Telemetry and Observability: action extraction from request bodies for metric labeling, action-based telemetry attributes, improved error handling, and tests validating the extraction logic. This enables more precise metrics, faster troubleshooting, and higher reliability of service monitoring. Commit: 2b3b4eedcf8bd1b909130f3961e2340bfa2a600f. - Fabric Token SDK: Lagrange Denominator Inverse Caching to eliminate O(n^2) recomputation in proofs and verifications, delivering meaningful performance improvements for cryptographic operations in larger deployments. Commit: a059326520b1489eb6add852a0eb0045e79e55a9. Overall impact and accomplishments: - Improved observability and actionable metrics for Beckn flows, reducing mean time to diagnose issues and enabling proactive reliability improvements. - Substantial performance optimization for cryptographic operations, enabling higher throughput and lower latency in verification-heavy scenarios. - Strengthened code quality via tests and responsiveness to mentor feedback on observability metrics. Technologies/skills demonstrated: - Telemetry instrumentation and metrics labeling, error handling improvements, and test-driven validation. - Performance optimization through caching of expensive computations (Lagrange denominators). - Cross-repo collaboration and alignment with best practices in observability, testing, and performance engineering.