Worked on stability and upgrade reliability for the aws/aws-toolkit-jetbrains and aws/aws-toolkit-vscode repositories, focusing on resolving critical bugs. Addressed deserialization errors in the JetBrains toolkit by implementing a patching mechanism and updating build configurations to handle missing classPath entries in product-info.json during upgrades to version 2026.1. In the VS Code toolkit, fixed Kiro path discovery issues on macOS, merging the release candidate and updating the toolkit version to support a stable release. Applied skills in Kotlin, JavaScript, and Gradle, with an emphasis on plugin development, build automation, and cross-platform compatibility improvements within continuous integration workflows.