Kelliott developed a Reactive Streams Emission Lint Detector for the slackhq/slack-lints repository, targeting rxObservable and rxFlowable usage in Kotlin and Java codebases. The detector enforces that send or trySend calls are present within reactive stream lambdas, addressing the risk of silent non-emissions and improving code reliability. Kelliott’s approach included comprehensive static analysis and integration with Slack’s lint issue registry, enabling better traceability and remediation. The work involved writing robust tests to cover edge cases and ensure detector accuracy. By leveraging skills in RxJava, coroutines, and linting, Kelliott enhanced maintainability and safety in reactive-stream code paths.