Worked on the tkhq/sdk repository to deliver a targeted fix addressing authorization signature formatting issues in a TypeScript-based SDK. Focused on cryptographic signature handling, the work involved removing an incorrect '0x' prefix from the r and s components within the signAuthorization function. This adjustment ensured signatures were correctly formatted, reducing authorization errors and improving interoperability for downstream integrations. The approach required careful debugging and consistent handling of edge cases related to prefix duplication. By applying expertise in cryptography, SDK development, and TypeScript, the developer improved the reliability of authorization flows and reduced support incidents for SDK users.