During December 2024, R. Jakabosky focused on stabilizing staking batch processing in the xuelongqy/wallet-core repository by addressing a critical bug in transaction encoding. Jakabosky corrected the handling of custom call indices for BondAndNominate and ChillAndUnbond staking actions, updating both Protocol Buffers definitions and C++ encoding logic to ensure accurate batch transmission. This work eliminated a latent issue that could have resulted in mis-encoded transactions and user-facing errors. Leveraging expertise in Polkadot, Protocol Buffers, and transaction encoding, Jakabosky’s targeted fix improved the reliability of staking operations, demonstrating depth in protocol-level problem solving and careful attention to encoding details.