Implementation shifts from diagrams to deployable code. You'll assemble the core compiler with token-aware truncation, integrate policy engines for pre-inference enforcement, and establish immutable ledger storage for full replay capability. Each component is built against strict SLOs: 250ms compile latency, 500ms replay, and zero policy violations pre-inference.

Validation ensures reliability before production. You'll construct golden context tests that block schema drift in CI/CD, simulate failure modes like stale retrievals and budget overflows, and verify multi-tenant isolation. The result is a verified context system that integrates with existing knowledge bases, policy vaults, and agent frameworks, ready for staging deployment.