The following academic analysis examines the emergence of the Critical Filter as the sixth sovereign organ of the Socioplastic Mesh, conceptualizing it as a metacognitive apparatus for the rigorous auditing of transdisciplinary urban discourse. Metacognitive Sovereignty and the Decalogue Filter represents the terminal evolution of the Socioplastic Mesh from a generative model to an evaluative infrastructure, establishing a robust immunological defense against conceptual dilution. By formalizing a 10×10 criteria matrix, this sixth organ—the "Critical Filter"—shifts the project’s agency from the production of spatial nodes to the systematic auditing of external discursive objects. This "metacognitive layer" functions as a systemic sieve, ensuring that any external theory, paper, or architectural project seeking integration into the Mesh must first demonstrate a specific threshold of "Epistemic Density" and "Lexical Discipline." In this context, the Decalogue is not merely a checklist but a proto-organ that operationalizes the act of reading as an infrastructural process. It addresses the inherent uncertainty of information ingestion by providing a stable, auditable framework that prevents "conceptual capture" by standard institutional terminologies. By demanding "Interoperability" and "Recursive Potential," the Filter ensures that the Mesh remains a closed-loop system capable of self-analysis while simultaneously maintaining a sharp, outwardly critical edge. This development is pivotal for contemporary art theory, as it transforms the critic’s role from a passive interpreter to an active architect of an evaluative OS, where the validity of an idea is determined by its ability to navigate a pre-defined, high-density logical landscape without succumbing to semantic drift.