Separate projection cloning and value comparison

docs/internal/overview.md

@@ -23,8 +23,10 @@ module and package documentation boundary. Its implemented public primitives are
   in `override.go`, sharing overlay, source, byte, node, and depth policies;
 - a per-operation private reflection descriptor graph in `schema.go` for supported
   types, YAML field binding, inlining, secret tags, recursion, and semantic paths;
-- descriptor-driven canonical projection, detached typed cloning, cycle/limit
-  enforcement, and structural comparison in `projection.go`;
+- descriptor-driven canonical projection in `projection.go`, detached typed
+  cloning with explicit secret-state modes in `clone.go`, shared reflection and
+  cycle/limit state in `value_operation.go`, and configuration-value comparison
+  in `document_compare.go`; validation separately audits sensitivity and secrets;
 - strict schema-driven decoding over detached defaults in `decode.go`, including
   mapping/sequence semantics, null and numeric policy, safe codec errors, presence,
   baseline/final trees, and initial default/input origins;

docs/roadmap/remediation.md

@@ -204,7 +204,16 @@ or predicate coverage changes. Do not add tests that assert walker call counts.
 
 ## Stage 5 — Separate typed projection, cloning, and comparison
 
-Status: pending.
+Status: complete.
+
+Completion: projection, detached cloning, shared reflection state, and value-only
+comparison now have separate owners. Named secret clone modes preserve the two
+ownership barriers. Validation combines value and sensitivity comparison in a
+named helper and separately audits resolved secret state. Standard `cmp.Compare`
+replaces the custom comparator; tests changed only for private symbol renames.
+Full offline baseline and race suites passed with Go 1.26.7 on Linux/amd64,
+including codec/cycle/limit, callback ownership, sensitivity, and secret-state
+regressions.
 
 Evidence: [projection.go](../../projection.go) combines roughly 622 lines of
 projection, detached cloning, dynamic schema handling, cycle/limit enforcement,