During March 2026, TCWK27 developed and delivered a Spectral Linter Plugin for YAML and JSON analysis in the qltysh/qlty repository, extending automated static analysis to OpenAPI, AsyncAPI, and Arazzo specifications. The plugin was implemented in JavaScript and YAML, leveraging plugin architecture in Node.js and integrating with Spectral for comprehensive configuration file validation. TCWK27 ensured reliability through automated snapshot testing and manual validation on a Spectral-based project, collaborating with a co-author to refine the solution. This work improved early defect detection and accelerated CI feedback, demonstrating depth in plugin development, static analysis, and cross-team engineering collaboration within a short timeframe.