Build and operationalize an agentic testing ecosystem to design, implement, and run a human-gated agent framework that accelerates test authoring, selection, execution, and triage-connecting agents to real tools (frameworks, CI/CD, APIs, data sources) while enforcing guardrails for correctness, determinism, security, and auditability. Release readiness & governance with entry/exit criteria, evidence-based sign-off, and strong partnership in Release Management in a CD operating model - along with curate and version a trusted test catalog, continuously measuring agent "fitness" (precision, drift, false positives/negatives), and ensure outputs remain release-grade across environments.