Carry descriptor outcomes, cancellation, retention and physical origin as named facts so wrappers cannot drop ownership context. Replace raw primary failure unwrapping with provenance facts across artifact consumers, and use Result for Kuna span reads including undefined rejections.
Exercise actual descriptors, rollback, cancellation and cleanup retry; update brittle snapshot and completion fixtures to use their producing boundaries.
Keep failed JSON read handles in the existing server resource scope and fail admission until cleanup succeeds. Thread cancellation through every process CLI input read and replace timer-driven cancellation checks with a shared first-read gate.
Classify authenticated standalone Evidence as wrong-kind input while preserving tampered-record integrity failures and actionable messages across ledger, CLI, and MCP consumers. Record unrelated CS_RESTRICT process neighbors as unverified without weakening related-process ownership checks. Update stale ADB fixtures for the actual shell protocol.
Validated focused CLI, MCP, filesystem, ownership, and error projection tests; static, docs, and duplication gates pass. The host-level CS_RESTRICT load reproduction was not run. Refs #2050, #2035, #2064.