April 2025 (jasmin-lang/jasmin): Focused on strengthening the formal memory model to improve correctness and maintainability. Key feature delivered: Memory Model Proof Correctness and Clarity Improvement via a refactor that uses a more direct logical deduction, yielding a clearer and more concise proof structure. Major bug fix: simplified and clarified the memory model reasoning, reducing ambiguity in core semantics. Overall impact: increases reliability of the language semantics, lowers future maintenance risk, and accelerates ongoing verification efforts. Technologies/skills demonstrated: formal proof engineering, refactoring for clarity, rigorous code hygiene, and commit-driven delivery.

March 2025 (2025-03): Focused on stabilizing formal verification in jasmin-lang/jasmin. Key delivery was a bug fix addressing the correctness of stack zeroization proofs and memory model definitions after MC#1256, including refactors to align rewrite rules and lemma applications across ARM, RISC-V, and x86 architectures. The changes strengthen the reliability of compiler proofs and reduce risk of memory-model mis-specifications in multi-arch scenarios.

November 2024 monthly work summary for mit-pdos/perennial focusing on compatibility and stability with external Coq changes. Implemented a Coq 19822 compatibility fix by adapting the ownI_bupd_factory_alloc lemma to support list-to-vector conversion when instantiating with a single element, aligning with coq#19822. The change reduces upgrade risk and preserves correctness across dependent proofs.