diff --git a/cmd/wcc/check.c b/cmd/wcc/check.c
index a578b035..5a7d53b5 100644
--- a/cmd/wcc/check.c
+++ b/cmd/wcc/check.c
@@ -3193,6 +3193,10 @@ static int
 init_tagged_raw_static(Type *u, Node *n)
 {
 	Node *r = init_strip_cast(n);
+	/* Cstage keeps true/false as untyped-bool, distinct from the concrete
+	 * bool variant selected by runtime boxing. Keep boolean payloads on that
+	 * runtime path in both stages so package artifacts remain identical. */
+	if (r != NULL && (r->kind == N_TRUE || r->kind == N_FALSE)) return 0;
 	Type *ru = type_chase_named(r ? r->type : NULL);
 	u64 ignored;
 	return u != NULL && u->kind == TY_TAGGED && !u->nullable
@@ -3336,8 +3340,13 @@ init_expr_static(Type *t, Node *n)
 	if (u != NULL && u->kind == TY_TAGGED && !u->nullable) {
 		Type *ru = type_chase_named(r->type);
 		if (!variant_present(u->params, r->type)) return 0;
-		if (ru != NULL && (ru->kind == TY_STR || ru->kind == TY_SLICE))
-			return r->kind == N_STRLIT;
+		/* String carriers need a relocation-bearing tagged row. Cstage's
+		 * untyped string is not the concrete str variant here; keep every
+		 * such mutable value on the common runtime path rather than let one
+		 * stage classify the same spelling as static data. */
+		if (ru != NULL && (ru->kind == TY_STR
+		    || ru->kind == TY_UNTYPED_STR || ru->kind == TY_SLICE))
+			return 0;
 		return init_tagged_raw_static(u, r);
 	}
 	if (init_fnptr_static(r)) return 1;
@@ -3345,6 +3354,67 @@ init_expr_static(Type *t, Node *n)
 	return fold_int_literal(r, &ignored);
 }
 
+/* A slice literal has no declared element count for WW's trailing `...`
+ * repeat to fill.  Keep this a checker-owned semantic rejection when a
+ * mutable package let moves from static data to runtime initialization;
+ * otherwise the backing counter drops the marker and silently publishes the
+ * explicit prefix.  Array repeats remain valid because their target length is
+ * known.  Recurse through the aggregate shapes package-init lowering owns so
+ * a nested slice cannot bypass the same rule. */
+static int
+init_validate_slice_repeats(Checker *c, Type *want, Node *expr)
+{
+	Node *r = init_strip_cast(expr);
+	Type *u = type_chase_named(want);
+	if (r == NULL || u == NULL) return 0;
+	if (u->kind == TY_SLICE && r->kind == N_ARRLIT) {
+		for (Node *e = r->list; e; e = e->next) {
+			if (e->kind == N_FIELD && e->str != NULL
+			    && strcmp(e->str, "...") == 0) {
+				err(c, e->pos, "'...' repeat has no target length "
+				    "in a slice literal");
+				return -1;
+			}
+			if (init_validate_slice_repeats(c, u->sub, e) < 0)
+				return -1;
+		}
+		return 0;
+	}
+	if (u->kind == TY_ARRAY && r->kind == N_ARRLIT) {
+		for (Node *e = r->list; e; e = e->next) {
+			if (e->kind == N_FIELD && e->str != NULL
+			    && strcmp(e->str, "...") == 0)
+				continue;
+			if (init_validate_slice_repeats(c, u->sub, e) < 0)
+				return -1;
+		}
+		return 0;
+	}
+	if (u->kind == TY_STRUCT && r->kind == N_STRUCTLIT) {
+		for (Node *e = r->list; e; e = e->next) {
+			Tfield *field = NULL;
+			for (Tfield *f = u->fields; f; f = f->next)
+				if (e->str != NULL && f->name != NULL
+				    && strcmp(e->str, f->name) == 0) {
+					field = f;
+					break;
+				}
+			if (field != NULL
+			    && init_validate_slice_repeats(c, field->type,
+				e->lhs) < 0)
+				return -1;
+		}
+		return 0;
+	}
+	if (u->kind == TY_TUPLE && r->kind == N_TUPLE) {
+		Tparam *p = u->params;
+		for (Node *e = r->list; e && p; e = e->next, p = p->next)
+			if (init_validate_slice_repeats(c, p->type, e) < 0)
+				return -1;
+	}
+	return 0;
+}
+
 struct initwalkitem {
 	Node *node;
 	struct initwalkitem *next;
@@ -3665,6 +3735,8 @@ init_lower_package(Checker *c, Node *file)
 			return -1;
 		}
 		nvar++;
+		if (init_validate_slice_repeats(c, d->type, d->rhs) < 0)
+			continue;
 		if (!init_expr_static(d->type, d->rhs)) {
 			d->runtimeinit = 1;
 			nruntime++;
@@ -4601,8 +4673,19 @@ check_file(Checker *c, Node *file)
 				 * returns 0 silently and is left untouched).
 				 * Stamp LAST — the assignability check above
 				 * consumes the pre-stamp cexpr type. */
+				/* An explicit scalar-to-tagged cast is also the carrier
+				 * selection. Folding it to an integer literal while keeping
+				 * the tagged result type makes cgen consume scalar registers
+				 * as an already-wide tagged ABI value. Mutable package lets
+				 * preserve the cast so the concrete carrier is boxed correctly;
+				 * const remains on its established static-only path. */
+				Type *foldt = type_chase_named(d->type);
+				int preserve_tagged_cast = d->op != TK_CONST && d->rhs
+				    && d->rhs->kind == N_CAST && foldt != NULL
+				    && foldt->kind == TY_TAGGED && !foldt->nullable;
 				u64 dv;
-				if (d->rhs && !fold_int_literal(d->rhs, &dv)
+				if (d->rhs && !preserve_tagged_cast
+				    && !fold_int_literal(d->rhs, &dv)
 				    && eval_def_const(c, d->rhs, &dv, 0))
 					stamp_intlit(c, d->rhs, dv);
 			} else if (d->type && d->type->kind == TY_ARRAY
diff --git a/cmd/ww/main.c b/cmd/ww/main.c
index 64adc23b..ea13487a 100644
--- a/cmd/ww/main.c
+++ b/cmd/ww/main.c
@@ -4648,11 +4648,6 @@ build_one_sep_impl(const char *src, int entry_is_dir,
 	    && !sep_root_is_command(&g->pkg[products[0].root]);
 	if (sep_validate_artifact_paths(g, scratch) < 0)
 		return 1;
-	if (sep_validate_request_staging(g, scratch, warm, products, nproducts,
-	    root_package, publish_package, emit_asm, is_test) < 0) {
-		sep_free_product_staging(products, nproducts);
-		return 1;
-	}
 	if (warm && workdir_exists && sep_validate_workdir_owners(g, scratch) < 0)
 		return 1;
 	int *order = calloc((size_t)g->n, sizeof *order);
@@ -4737,6 +4732,12 @@ build_one_sep_impl(const char *src, int entry_is_dir,
 		free(order);
 		return 1;
 	}
+	if (sep_validate_request_staging(g, scratch, warm, products, nproducts,
+	    root_package, publish_package, emit_asm, is_test) < 0) {
+		sep_free_product_staging(products, nproducts);
+		free(order);
+		return 1;
+	}
 	/* Product completion and persistent package state remain untouched until
 	 * all source-derived imports, contextual legality, cycles, command kind,
 	 * output paths, and action closures have passed their pre-tool checks. */
diff --git a/internal/wwfixture/types.ww b/internal/wwfixture/types.ww
index d577cd30..1f650427 100644
--- a/internal/wwfixture/types.ww
+++ b/internal/wwfixture/types.ww
@@ -2,10 +2,10 @@ package wwfixture;
 
 def protocolversion: i32 = 1;
 def corpuscount: i32 = 1759;
-def errorcount: i32 = 351;
+def errorcount: i32 = 338;
 def compilecount: i32 = 22;
-def runcount: i32 = 209;
-def runexitcount: i32 = 1177;
+def runcount: i32 = 214;
+def runexitcount: i32 = 1185;
 def nativecount: i32 = 3518;
 def corpushash: str = "47d731a8fd089ecdef9a1b9b94f3dfc06a733b7e03236014f095b068a67ce176";
 
diff --git a/selfhost/cmd/wcc/check.ww b/selfhost/cmd/wcc/check.ww
index 73e3b485..486cac78 100644
--- a/selfhost/cmd/wcc/check.ww
+++ b/selfhost/cmd/wcc/check.ww
@@ -7731,6 +7731,11 @@ fn initfloatstatic(n: *syntax.node) bool = {
 
 fn inittaggedrawstatic(u: *syntax.tinfo, n: *syntax.node) bool = {
 	let r: *syntax.node = initstripcast(n);
+	// Cstage keeps true/false as untyped-bool, distinct from the concrete
+	// bool variant selected by runtime boxing. Keep boolean payloads on that
+	// runtime path in both stages so package artifacts remain identical.
+	if (r != nil && (r.kind == syntax.nkind.N_TRUE
+	    || r.kind == syntax.nkind.N_FALSE)) { return false; };
 	if (u == nil || u.kind != syntax.tykind.TY_TAGGED || u.nullable != 0
 	    || r == nil || !variantpresent(u.params, r.type_: *syntax.tinfo)
 	    || syntax.typeisstr(r.type_: *syntax.tinfo)
@@ -7871,9 +7876,13 @@ fn initexprstatic(t: *syntax.tinfo, n: *syntax.node) bool = {
 	    && u.nullable == 0) {
 		if (!variantpresent(u.params, r.type_: *syntax.tinfo)) { return false; };
 		let ru: *syntax.tinfo = tichase(r.type_: *syntax.tinfo);
+		// Relocation-bearing string carriers stay on the common runtime
+		// path: Cstage's untyped string is not the concrete str variant at
+		// this classifier, so a static wwstage row would change artifacts.
 		if (ru != nil && (ru.kind == syntax.tykind.TY_STR
+		    || ru.kind == syntax.tykind.TY_UNTYPED_STR
 		    || ru.kind == syntax.tykind.TY_SLICE)) {
-			return r.kind == syntax.nkind.N_STRLIT;
+			return false;
 		};
 		return inittaggedrawstatic(u, r);
 	};
@@ -7882,6 +7891,78 @@ fn initexprstatic(t: *syntax.tinfo, n: *syntax.node) bool = {
 	return foldintliteral(r, &ignored);
 };
 
+// A slice literal has no declared element count for WW's trailing `...`
+// repeat to fill. Keep this a checker-owned semantic rejection when a mutable
+// package let moves from static data to runtime initialization; otherwise the
+// backing counter drops the marker and publishes only the explicit prefix.
+// Arrays retain the repeat because their target length is known. Recurse
+// through the aggregate shapes package-init lowering owns.
+fn initvalidateslicerepeats(c: *checker, want: *syntax.tinfo,
+	expr: *syntax.node) bool = {
+	let r: *syntax.node = initstripcast(expr);
+	let u: *syntax.tinfo = tichase(want);
+	if (r == nil || u == nil) { return true; };
+	if (u.kind == syntax.tykind.TY_SLICE
+	    && r.kind == syntax.nkind.N_ARRLIT) {
+		let e: *syntax.node = r.list;
+		for (e != nil) {
+			if (e.kind == syntax.nkind.N_FIELD
+			    && syntax.streq(e.str, "...")) {
+				importdiagprefix(e);
+				cerr("'...' repeat has no target length in a slice literal\n");
+				c.errs += 1;
+				return false;
+			};
+			if (!initvalidateslicerepeats(c, u.sub, e)) { return false; };
+			e = e.next;
+		};
+		return true;
+	};
+	if (u.kind == syntax.tykind.TY_ARRAY
+	    && r.kind == syntax.nkind.N_ARRLIT) {
+		let e: *syntax.node = r.list;
+		for (e != nil) {
+			if (!(e.kind == syntax.nkind.N_FIELD
+			    && syntax.streq(e.str, "..."))) {
+				if (!initvalidateslicerepeats(c, u.sub, e)) {
+					return false;
+				};
+			};
+			e = e.next;
+		};
+		return true;
+	};
+	if (u.kind == syntax.tykind.TY_STRUCT
+	    && r.kind == syntax.nkind.N_STRUCTLIT) {
+		let e: *syntax.node = r.list;
+		for (e != nil) {
+			let field: *syntax.tfield = u.fields;
+			for (field != nil) {
+				if (syntax.streq(e.str, field.name)) { break; };
+				field = field.tnext;
+			};
+			if (field != nil) {
+				if (!initvalidateslicerepeats(c, field.type_, e.lhs)) {
+					return false;
+				};
+			};
+			e = e.next;
+		};
+		return true;
+	};
+	if (u.kind == syntax.tykind.TY_TUPLE
+	    && r.kind == syntax.nkind.N_TUPLE) {
+		let te: *syntax.ttupleelem = u.tupleelems;
+		let e: *syntax.node = r.list;
+		for (e != nil && te != nil) {
+			if (!initvalidateslicerepeats(c, te.type_, e)) { return false; };
+			e = e.next;
+			te = te.tnext;
+		};
+	};
+	return true;
+};
+
 type initwalkitem = struct {
 	node: *syntax.node,
 	next: *initwalkitem,
@@ -8266,6 +8347,10 @@ fn initlowerpackage(c: *checker, file: *syntax.node) void = {
 				else { if (d.rhs != nil) {
 					dt = d.rhs.type_: *syntax.tinfo;
 				}; };
+				if (!initvalidateslicerepeats(c, dt, d.rhs)) {
+					d = d.next;
+					continue;
+				};
 				if (!initexprstatic(dt, d.rhs)) {
 					d.runtimeinit = 1;
 					nruntime += 1u64;
@@ -8906,8 +8991,22 @@ fn checkfile(c: *checker, file: *syntax.node) void = {
 			// rhs returns false silently and is left untouched).
 			// Stamp LAST — checkletassign consumes the pre-stamp type.
 			if (d.rhs != nil) {
+				// An explicit scalar-to-tagged cast selects the carrier.
+				// Folding it while retaining the tagged result type makes
+				// cstage consume scalar registers as an already-wide ABI
+				// value. Mutable package lets preserve the cast so the concrete
+				// carrier is boxed correctly; const keeps static-only behavior.
+				let foldt: *syntax.tinfo = nil;
+				if (d.lhs != nil) {
+					foldt = tichase(d.lhs.type_: *syntax.tinfo);
+				};
+				let preservetaggedcast: bool = d.op != syntax.tkind.TK_CONST
+					&& d.rhs.kind == syntax.nkind.N_CAST
+					&& foldt != nil
+					&& foldt.kind == syntax.tykind.TY_TAGGED
+					&& foldt.nullable == 0;
 				let dv: u64 = 0u64;
-				if (!foldintliteral(d.rhs, &dv)) {
+				if (!preservetaggedcast && !foldintliteral(d.rhs, &dv)) {
 					if (evaldefconst(c, d.rhs, &dv, 0)) {
 						stampintlit(d.rhs, dv);
 					};
diff --git a/selfhost/cmd/ww/main.ww b/selfhost/cmd/ww/main.ww
index 9fd190c7..6d31da17 100644
--- a/selfhost/cmd/ww/main.ww
+++ b/selfhost/cmd/ww/main.ww
@@ -5959,11 +5959,6 @@ fn buildonesepimpl(selfdir: *u8, src: *u8, entryisdir: i32,
 		&& !g.pkg[products[0].root].failed
 		&& !seprootiscommand(&g.pkg[products[0].root]);
 	if (sepvalidateartifactpaths(g, scratch) < 0) { return 1; };
-	if (sepvalidaterequeststaging(g, scratch, warm, products, nproducts,
-		rootpackage, publishpackage, emitasm, istest) < 0) {
-		sepfreeproductstaging(products, nproducts);
-		return 1;
-	};
 	if (warm && workdirexists
 		&& sepvalidateworkdirowners(g, scratch) < 0) { return 1; };
 	let ci: i32 = 0;
@@ -6064,6 +6059,11 @@ fn buildonesepimpl(selfdir: *u8, src: *u8, entryisdir: i32,
 		producti += 1;
 	};
 	if (!viableproduct) { return 1; };
+	if (sepvalidaterequeststaging(g, scratch, warm, products, nproducts,
+		rootpackage, publishpackage, emitasm, istest) < 0) {
+		sepfreeproductstaging(products, nproducts);
+		return 1;
+	};
 	// Source-derived resolution and contextual legality are complete before
 	// coordinator completion markers or persistent vouchers are changed.
 	let createdoutput: sepcreateddirs;
diff --git a/test/lang/array_static_init_test.ww b/test/lang/array_static_init_test.ww
index 2d9d6110..2b0c09cb 100644
--- a/test/lang/array_static_init_test.ww
+++ b/test/lang/array_static_init_test.ww
@@ -3,8 +3,9 @@
 // #156). emit_array_lit_bytes recurses on a TY_ARRAY element (esz=etype->size,
 // rule 13); cgindex leaves the sub-array ADDRESS for an array element so the
 // outer index dereferences the right cell (#135 sister). cstage build+run was
-// T1; cs==ww .s byte-id rides T2 (test-lang-byteid). The nested-array `...`
-// repeat reject is the runww carrier test/wcc/data/arr_nested_ellipsis_reject.
+// T1; cs==ww .s byte-id rides T2 (test-lang-byteid). A nested-array `...`
+// repeat now runs through package initialization when static emission cannot
+// represent it, as pinned by test/wcc/data/arr_nested_ellipsis_reject.
 //
 // Float-element rows assert bit-exact incl negative elements (drew: exercise the
 // sign-XOR byte-loop per element). The struct-with-array-field rows read the
diff --git a/test/sep/importdir_test.ww b/test/sep/importdir_test.ww
index ce71938a..6995ac48 100644
--- a/test/sep/importdir_test.ww
+++ b/test/sep/importdir_test.ww
@@ -93,17 +93,26 @@ fn samefile(a: str, b: str, why: str) void = {
 		"example.foo.unit.ww"));
 	let wantfoo: str = strings.concat("//ww:module-reset example.foo\n", afoosrc,
 		"\n//ww:module-reset example.foo\n", zfoosrc, "\n");
-	if (!testenv.same(foounit, wantfoo)
+	let foovoucher: str = "//ww:direct-export example.bar ";
+	if (!strings.hasprefix(foounit, wantfoo)
+		|| testenv.occurrences(foounit, "//ww:direct-export ") != 1
+		|| testenv.occurrences(foounit, foovoucher) != 1
+		|| testenv.pos(foounit, foovoucher) != wantfoo.len
 		|| testenv.has(foounit, "DECOY_FILE")
 		|| testenv.has(foounit, "//ww:module ")) {
-		fail("foo unit is not exactly its sorted, owned source set");
+		fail("foo owner prefix/direct-export voucher mismatch");
 	};
 	let wantroot: str = strings.concat("//ww:module-reset ", appidentity,
 		"\n", appsrc,
 		"\n");
-	if (!testenv.same(wantroot, testenv.readfile(strings.concat(cwork,
-		appidentity, ".unit.ww")))) {
-		fail("root unit is not exactly its owned source");
+	let rootunit: str = testenv.readfile(strings.concat(cwork,
+		appidentity, ".unit.ww"));
+	let rootvoucher: str = "//ww:direct-export example.foo ";
+	if (!strings.hasprefix(rootunit, wantroot)
+		|| testenv.occurrences(rootunit, "//ww:direct-export ") != 1
+		|| testenv.occurrences(rootunit, rootvoucher) != 1
+		|| testenv.pos(rootunit, rootvoucher) != wantroot.len) {
+		fail("root owner prefix/direct-export voucher mismatch");
 	};
 	let keys: []str = ["example.base", "example.bar", "example.foo",
 		appidentity];
diff --git a/test/sep/localbuild_test.ww b/test/sep/localbuild_test.ww
index 1161c040..dec0861e 100644
--- a/test/sep/localbuild_test.ww
+++ b/test/sep/localbuild_test.ww
@@ -288,10 +288,14 @@ fn rejectstable(dir: str, label: str, target: str, needle: str) void = {
 	};
 	let expectedunit: str = strings.concat("//ww:module-reset main\n",
 		mainsrc, "\n");
-	if (!testenv.same(expectedunit, testenv.readfile(strings.concat(cwork,
-	    "main.unit.ww"))) || !testenv.same(expectedunit,
-	    testenv.readfile(strings.concat(wwork, "main.unit.ww")))) {
-		fail("self-contained", "consumer unit was not exactly its owned source");
+	let cunit: str = testenv.readfile(strings.concat(cwork, "main.unit.ww"));
+	let cunit2: str = testenv.readfile(strings.concat(cwork2, "main.unit.ww"));
+	let wunit: str = testenv.readfile(strings.concat(wwork, "main.unit.ww"));
+	if (!strings.hasprefix(cunit, expectedunit)
+	    || testenv.occurrences(cunit, "//ww:direct-export api ") != 1
+	    || testenv.pos(cunit, "//ww:direct-export api ") != expectedunit.len
+	    || !testenv.same(cunit, cunit2) || !testenv.same(cunit, wunit)) {
+		fail("self-contained", "consumer owner prefix/direct-export voucher mismatch");
 	};
 	if (!testenv.exists(strings.concat(cwork, "implementation.a"))
 	    || !testenv.exists(strings.concat(cwork, "dimensions.a"))) {
@@ -408,9 +412,16 @@ fn writediamond(td: str, reverse: bool) str = {
 		let rootbody: str = testenv.readfile(strings.concat(main, "/main.ww"));
 		let wantroot: str = strings.concat("//ww:module-reset main\n", rootbody,
 			"\n");
-		if (!testenv.same(unit, wantroot) || testenv.has(unit,
-			"//ww:module ")) {
-			fail("diamond", "root unit contains non-owned export text");
+		let leftvoucher: str = "//ww:direct-export left ";
+		let rightvoucher: str = "//ww:direct-export right ";
+		if (!strings.hasprefix(unit, wantroot) || testenv.has(unit,
+			"//ww:module ")
+		    || testenv.occurrences(unit, "//ww:direct-export ") != 2
+		    || testenv.occurrences(unit, leftvoucher) != 1
+		    || testenv.occurrences(unit, rightvoucher) != 1
+		    || testenv.pos(unit, leftvoucher) != wantroot.len
+		    || testenv.pos(unit, leftvoucher) >= testenv.pos(unit, rightvoucher)) {
+			fail("diamond", "root owner prefix/sorted direct-export vouchers changed");
 		};
 		let sharedunit: str = testenv.readfile(strings.concat(scratch,
 			"shared.unit.ww"));
@@ -534,6 +545,9 @@ fn writediamond(td: str, reverse: bool) str = {
 		let referencearchive: str = "";
 		let referencerootwwi: str = "";
 		let referencerootarchive: str = "";
+		let referenceinitunit: str = "";
+		let referenceinitasm: str = "";
+		let referenceinitobj: str = "";
 		let referencebin: str = "";
 		let referencecompiler: str = "";
 		let referenceassembler: str = "";
@@ -583,9 +597,21 @@ fn writediamond(td: str, reverse: bool) str = {
 			    || !testenv.exists(strings.concat(work, "dep.a"))
 			    || !testenv.exists(strings.concat(work, "main.o"))
 			    || !testenv.exists(strings.concat(work, "main.wwi"))
-			    || !testenv.exists(strings.concat(work, "main.a"))) {
+			    || !testenv.exists(strings.concat(work, "main.a"))
+			    || !testenv.exists(strings.concat(work, "main.init.unit.ww"))
+			    || !testenv.exists(strings.concat(work, "main.init.s"))
+			    || !testenv.exists(strings.concat(work, "main.init.o"))) {
 				fail("library-roots", "package artifacts do not match root ownership");
 			};
+			let initunit: str = testenv.readfile(strings.concat(work,
+				"main.init.unit.ww"));
+			if (!testenv.same(initunit, strings.concat(
+				"//ww:init-root __ww..pkg.p.main.v0.r0.init\n",
+				"//ww:init-call __ww..pkg.p.leaf.v0.r0.init\n",
+				"//ww:init-call __ww..pkg.p.dep.v0.r0.init\n",
+				"//ww:init-call __ww..pkg.p.main.v0.r0.init\n"))) {
+				fail("library-roots", "root dispatcher unit order changed");
+			};
 			let ctrace: str = testenv.readfile(compilertrace);
 			let atrace: str = testenv.readfile(assemblertrace);
 			let ltrace: str = testenv.readfile(linkertrace);
@@ -604,20 +630,29 @@ fn writediamond(td: str, reverse: bool) str = {
 				fail("library-roots", "compiler actions were not deterministic postorder");
 			};
 			if (!testenv.has(ctrace, strings.concat(
-				"BEGIN<-c><--import><leaf><", work, "leaf.wwi><-I><", work,
+				"BEGIN<--package-init-symbol><__ww..pkg.p.leaf.v0.r0.init>",
+				"<-c><-I><", work, "leaf.wwi><-o><", work,
+				"leaf.s><", work, "leaf.unit.ww>"))
+			    || !testenv.has(ctrace, strings.concat(
+				"BEGIN<--package-init-symbol><__ww..pkg.p.dep.v0.r0.init>",
+				"<-c><--import><leaf><", work, "leaf.wwi><-I><", work,
 				"dep.wwi><-o><", work,
 				"dep.s><", work, "dep.unit.ww>"))
 			    || !testenv.has(ctrace, strings.concat(
-				"BEGIN<--entry><-c><--import><dep><", work,
+				"BEGIN<--entry><--package-init-symbol>",
+				"<__ww..pkg.p.main.v0.r0.init><--init-dispatch-symbol>",
+				"<__ww..dispatch><-c><--import><dep><", work,
 				"dep.wwi><-I><", work, "main.wwi><-o><", work,
 				"main.s><", work, "main.unit.ww>"))
-			    || testenv.occurrences(atrace, "\n") != 3
+			    || testenv.occurrences(atrace, "\n") != 4
 			    || !testenv.has(atrace, strings.concat("BEGIN<-o><", work,
-				"dep.o><", work, "dep.s>"))) {
+				"dep.o><", work, "dep.s>"))
+			    || !testenv.has(atrace, strings.concat("BEGIN<-o><", work,
+				"main.init.o><", work, "main.init.s>"))) {
 				fail("library-roots", "compiler or assembler argv changed");
 			};
 			if (testenv.occurrences(ltrace, "\n") != 1
-			    || !testenv.has(ltrace, strings.concat("BEGIN<-o><", bin, "><",
+			    || !testenv.has(ltrace, strings.concat("BEGIN<-o><", bin, ".new><",
 				work, "main.a>"))
 			    || testenv.pos(ltrace, strings.concat("<", work, "dep.a>")) < 0
 			    || testenv.pos(ltrace, strings.concat("<", work, "leaf.a>"))
@@ -655,6 +690,11 @@ fn writediamond(td: str, reverse: bool) str = {
 					"main.wwi")));
 				referencerootarchive = strings.dup(testenv.readfile(strings.concat(work,
 					"main.a")));
+				referenceinitunit = strings.dup(initunit);
+				referenceinitasm = strings.dup(testenv.readfile(strings.concat(work,
+					"main.init.s")));
+				referenceinitobj = strings.dup(testenv.readfile(strings.concat(work,
+					"main.init.o")));
 				referencebin = strings.dup(testenv.readfile(bin));
 				referencecompiler = strings.dup(ctrace);
 				referenceassembler = strings.dup(atrace);
@@ -669,6 +709,11 @@ fn writediamond(td: str, reverse: bool) str = {
 					testenv.readfile(strings.concat(work, "main.wwi")))
 				    || !testenv.same(referencerootarchive,
 					testenv.readfile(strings.concat(work, "main.a")))
+				    || !testenv.same(referenceinitunit, initunit)
+				    || !testenv.same(referenceinitasm,
+					testenv.readfile(strings.concat(work, "main.init.s")))
+				    || !testenv.same(referenceinitobj,
+					testenv.readfile(strings.concat(work, "main.init.o")))
 				    || !testenv.same(referencebin, testenv.readfile(bin))
 				    || !testenv.same(referencecompiler, ctrace)
 				    || !testenv.same(referenceassembler, atrace)
@@ -747,7 +792,7 @@ fn writediamond(td: str, reverse: bool) str = {
 		    || !testenv.exists(strings.concat(emptywork, "types.a"))
 		    || testenv.occurrences(ctrace, strings.concat("<", emptywork,
 			"types.unit.ww>")) != 1
-		    || testenv.occurrences(atrace, "\n") != 2) {
+		    || testenv.occurrences(atrace, "\n") != 3) {
 			fail("library-roots", "empty WW_SRCLIB did not use the default source root");
 		};
 		if (testenv.occurrences(ltrace, "\n") != 1
@@ -900,6 +945,9 @@ fn writediamond(td: str, reverse: bool) str = {
 		    || !testenv.exists(strings.concat(work, "/dep.a"))
 		    || !testenv.exists(strings.concat(work, "/main.wwi"))
 		    || !testenv.exists(strings.concat(work, "/main.a"))
+		    || !testenv.exists(strings.concat(work, "/main.init.unit.ww"))
+		    || !testenv.exists(strings.concat(work, "/main.init.s"))
+		    || !testenv.exists(strings.concat(work, "/main.init.o"))
 		    || !testenv.same(testenv.readfile(strings.concat(work,
 			"/.wwtool.ww")), testenv.readfile(copied[si]))
 		    || !testenv.same(testenv.readfile(strings.concat(work,
@@ -908,7 +956,7 @@ fn writediamond(td: str, reverse: bool) str = {
 			"/.wwtool.w6a")), testenv.readfile(assembler))
 		    || !testenv.same(testenv.readfile(strings.concat(work,
 			"/.wwtool.stamp")),
-			"ww workdir fmt 15 mode build asm 0\n")) {
+			"ww workdir fmt 17 mode build asm 0\n")) {
 			fail("driver-identity", "persistent artifacts or identities are incomplete");
 		};
 		let coldwwi: str = testenv.readfile(strings.concat(work, "/dep.wwi"));
@@ -919,28 +967,38 @@ fn writediamond(td: str, reverse: bool) str = {
 		let coldlinker: str = testenv.readfile(linkertrace);
 		if (testenv.occurrences(coldcompiler, "\n") != 3
 		    || !testenv.has(coldcompiler, strings.concat(
-			"BEGIN<-c><--import><leaf><", work, "/leaf.wwi><-I><", work,
+			"BEGIN<--package-init-symbol><__ww..pkg.p.leaf.v0.r0.init>",
+			"<-c><-I><", work, "/leaf.wwi.new><-o><", work,
+			"/leaf.s.new><", work, "/leaf.unit.new>"))
+		    || !testenv.has(coldcompiler, strings.concat(
+			"BEGIN<--package-init-symbol><__ww..pkg.p.dep.v0.r0.init>",
+			"<-c><--import><leaf><", work, "/leaf.wwi.new><-I><", work,
 			"/dep.wwi.new><-o><", work,
 			"/dep.s.new><", work, "/dep.unit.new>"))
 		    || !testenv.has(coldcompiler, strings.concat(
-			"BEGIN<--entry><-c><--import><dep><", work,
-			"/dep.wwi><-I><", work, "/main.wwi.new><-o><", work,
+			"BEGIN<--entry><--package-init-symbol>",
+			"<__ww..pkg.p.main.v0.r0.init><--init-dispatch-symbol>",
+			"<__ww..dispatch><-c><--import><dep><", work,
+			"/dep.wwi.new><-I><", work, "/main.wwi.new><-o><", work,
 			"/main.s.new><", work,
 			"/main.unit.new>"))
-		    || testenv.occurrences(coldassembler, "\n") != 3
+		    || testenv.occurrences(coldassembler, "\n") != 4
 		    || !testenv.has(coldassembler, strings.concat(
 			"BEGIN<-o><", work, "/dep.o.new><", work,
-			"/dep.s.new>"))) {
+			"/dep.s.new>"))
+		    || !testenv.has(coldassembler, strings.concat(
+			"BEGIN<-o><", work, "/main.init.o.new><", work,
+			"/main.init.s.new>"))) {
 			fail("driver-identity", "cold compiler or assembler argv changed");
 		};
 		if (testenv.occurrences(coldlinker, "\n") != 1
 		    || !testenv.has(coldlinker, strings.concat("BEGIN<-o><", bin,
-			"><", work, "/main.a>"))
+			".new><", work, "/main.a.new>"))
 		    || testenv.pos(coldlinker, strings.concat("<", work,
-			"/dep.a>")) < 0
+			"/dep.a.new>")) < 0
 		    || testenv.pos(coldlinker, strings.concat("<", work,
-			"/leaf.a>")) < testenv.pos(coldlinker, strings.concat("<",
-			work, "/dep.a>"))
+			"/leaf.a.new>")) < testenv.pos(coldlinker, strings.concat("<",
+			work, "/dep.a.new>"))
 		    || !testenv.has(coldlinker, strings.concat("<", runtime,
 			"/libwwrt.a>"))
 		    || testenv.has(coldlinker, ".wwi>")) {
@@ -970,7 +1028,7 @@ fn writediamond(td: str, reverse: bool) str = {
 		    || testenv.occurrences(changedexportcompiler, strings.concat("<", work,
 			"/main.unit.new>")) != 1
 		    || testenv.occurrences(changedexportcompiler, "\n") != 5
-		    || testenv.occurrences(changedexportassembler, "\n") != 5) {
+		    || testenv.occurrences(changedexportassembler, "\n") != 6) {
 			fail("driver-identity", "changed export did not stop at an unchanged importer export");
 		};
 		if (code(cwd, strings.concat("driver-export-change-run-", tags[si]),
@@ -1004,7 +1062,7 @@ fn writediamond(td: str, reverse: bool) str = {
 		    || testenv.occurrences(testenv.readfile(compilertrace), strings.concat(
 			"<", work, "/main.unit.new>")) != 1
 		    || testenv.occurrences(testenv.readfile(compilertrace), "\n") != 7
-		    || testenv.occurrences(testenv.readfile(assemblertrace), "\n") != 7
+		    || testenv.occurrences(testenv.readfile(assemblertrace), "\n") != 8
 		    || !testenv.same(coldbin, testenv.readfile(bin))) {
 			fail("driver-identity", "restored export did not rebuild only its direct importer");
 		};
@@ -1029,7 +1087,7 @@ fn writediamond(td: str, reverse: bool) str = {
 		    || testenv.occurrences(changedcompiler, strings.concat("<", work,
 			"/main.unit.new>")) != 2
 		    || testenv.occurrences(changedcompiler, "\n") != 10
-		    || testenv.occurrences(changedassembler, "\n") != 10
+		    || testenv.occurrences(changedassembler, "\n") != 12
 		    || testenv.occurrences(changedlinker, "\n") != 5) {
 			fail("driver-identity", "driver change reused stale package actions");
 		};
@@ -1339,9 +1397,11 @@ fn writediamond(td: str, reverse: bool) str = {
 	let linkers: []str = ["w6l", "w6l_ww"];
 	let tags: []str = ["c", "ww"];
 	let suffixes: []str = [".unit.ww", ".wwi", ".s", ".o", ".a"];
+	let initsuffixes: []str = [".init.unit.ww", ".init.s", ".init.o"];
 	let rootreference: []str = ["", "", "", "", ""];
 	let depreference: []str = ["", "", "", "", ""];
 	let commandreference: []str = ["", "", "", "", ""];
+	let commandinitreference: []str = ["", "", ""];
 	let nooutrootreference: []str = ["", "", "", "", ""];
 	let nooutdepreference: []str = ["", "", "", "", ""];
 	let publishreference: str = "";
@@ -1382,11 +1442,14 @@ fn writediamond(td: str, reverse: bool) str = {
 		let ctrace: str = testenv.readfile(compilertrace);
 		let atrace: str = testenv.readfile(assemblertrace);
 		let wantcompiler: str = strings.concat(
-			"BEGIN<-c><-I><", work,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", work,
 			"/foo.dep.wwi.new><-o><", work,
 			"/foo.dep.s.new><", work, "/foo.dep.unit.new>\n",
-			"BEGIN<-c><--import><foo.dep><", work,
-			"/foo.dep.wwi><-I><", work,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.bar.v0.r0.init><-c>",
+			"<--import><foo.dep><", work,
+			"/foo.dep.wwi.new><-I><", work,
 			"/foo.bar.wwi.new><-o><", work,
 			"/foo.bar.s.new><", work, "/foo.bar.unit.new>\n");
 		let wantassembler: str = strings.concat(
@@ -1461,15 +1524,20 @@ fn writediamond(td: str, reverse: bool) str = {
 		atrace = testenv.readfile(assemblertrace);
 		let commandlink: str = testenv.readfile(linkertrace);
 		let wantcommandcompiler: str = strings.concat(
-			"BEGIN<-c><-I><", commandwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", commandwork,
 			"/foo.dep.wwi.new><-o><", commandwork,
 			"/foo.dep.s.new><", commandwork, "/foo.dep.unit.new>\n",
-			"BEGIN<-c><--import><foo.dep><", commandwork,
-			"/foo.dep.wwi><-I><", commandwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.bar.v0.r0.init><-c>",
+			"<--import><foo.dep><", commandwork,
+			"/foo.dep.wwi.new><-I><", commandwork,
 			"/foo.bar.wwi.new><-o><", commandwork,
 			"/foo.bar.s.new><", commandwork, "/foo.bar.unit.new>\n",
-			"BEGIN<--entry><-c><--import><foo.bar><", commandwork,
-			"/foo.bar.wwi><-I><", commandwork,
+			"BEGIN<--entry><--package-init-symbol>",
+			"<__ww..pkg.p.foo.cmd.v0.r0.init><--init-dispatch-symbol>",
+			"<__ww..dispatch><-c><--import><foo.bar><", commandwork,
+			"/foo.bar.wwi.new><-I><", commandwork,
 			"/foo.cmd.wwi.new><-o><", commandwork,
 			"/foo.cmd.s.new><", commandwork, "/foo.cmd.unit.new>\n");
 		let wantcommandassembler: str = strings.concat(
@@ -1478,10 +1546,12 @@ fn writediamond(td: str, reverse: bool) str = {
 			"BEGIN<-o><", commandwork, "/foo.bar.o.new><", commandwork,
 			"/foo.bar.s.new>\n",
 			"BEGIN<-o><", commandwork, "/foo.cmd.o.new><", commandwork,
-			"/foo.cmd.s.new>\n");
+			"/foo.cmd.s.new>\n",
+			"BEGIN<-o><", commandwork, "/foo.cmd.init.o.new><", commandwork,
+			"/foo.cmd.init.s.new>\n");
 		let wantcommandlink: str = strings.concat("BEGIN<-o><", commandbin,
-			"><", commandwork, "/foo.cmd.a><", commandwork,
-			"/foo.bar.a><", commandwork, "/foo.dep.a><", runtime,
+			".new><", commandwork, "/foo.cmd.a.new><", commandwork,
+			"/foo.bar.a.new><", commandwork, "/foo.dep.a.new><", runtime,
 			"/libwwrt.a>\n");
 		if (out.termination != exec.termination.EXIT || out.code != 0
 		    || out.stderr.len != 0
@@ -1510,6 +1580,18 @@ fn writediamond(td: str, reverse: bool) str = {
 			}; };
 			ai += 1;
 		};
+		ai = 0;
+		for (ai < initsuffixes.len) {
+			let initbytes: str = testenv.readfile(strings.concat(commandwork,
+				"/foo.cmd", initsuffixes[ai]));
+			if (si == 0) {
+				commandinitreference[ai] = strings.dup(initbytes);
+			} else { if (!testenv.same(commandinitreference[ai], initbytes)) {
+				fail("package-autoaction",
+					"Cstage and WWstage dispatcher artifacts differ");
+			}; };
+			ai += 1;
+		};
 		let commandrun: []str = [commandbin];
 		if (code(td, strings.concat("auto-command-run-", tags[si]),
 		    commandrun) != 42) {
@@ -1544,11 +1626,14 @@ fn writediamond(td: str, reverse: bool) str = {
 		ctrace = testenv.readfile(compilertrace);
 		atrace = testenv.readfile(assemblertrace);
 		let wantnooutcompiler: str = strings.concat(
-			"BEGIN<-c><-I><", nooutwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", nooutwork,
 			"/foo.dep.wwi.new><-o><", nooutwork,
 			"/foo.dep.s.new><", nooutwork, "/foo.dep.unit.new>\n",
-			"BEGIN<-c><--import><foo.dep><", nooutwork,
-			"/foo.dep.wwi><-I><", nooutwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.bar.v0.r0.init><-c>",
+			"<--import><foo.dep><", nooutwork,
+			"/foo.dep.wwi.new><-I><", nooutwork,
 			"/foo.bar.wwi.new><-o><", nooutwork,
 			"/foo.bar.s.new><", nooutwork, "/foo.bar.unit.new>\n");
 		let wantnooutassembler: str = strings.concat(
@@ -1660,11 +1745,14 @@ fn writediamond(td: str, reverse: bool) str = {
 		testenv.runcommandenv(td, td, strings.concat("auto-asm-long-output-",
 			tags[si]), asmav, env, tmo(), &out);
 		let wantasmcompiler: str = strings.concat(
-			"BEGIN<-c><-I><", asmwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", asmwork,
 			"/foo.dep.wwi.new><-o><", asmwork,
 			"/foo.dep.s.new><", asmwork, "/foo.dep.unit.new>\n",
-			"BEGIN<-c><--import><foo.dep><", asmwork,
-			"/foo.dep.wwi><-I><", asmwork,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.bar.v0.r0.init><-c>",
+			"<--import><foo.dep><", asmwork,
+			"/foo.dep.wwi.new><-I><", asmwork,
 			"/foo.bar.wwi.new><-o><", asmwork,
 			"/foo.bar.s.new><", asmwork, "/foo.bar.unit.new>\n");
 		if (out.termination != exec.termination.EXIT || out.code != 0
@@ -1752,7 +1840,8 @@ fn writediamond(td: str, reverse: bool) str = {
 		ctrace = testenv.readfile(compilertrace);
 		atrace = testenv.readfile(assemblertrace);
 		let wantprivatecompiler: str = strings.concat(
-			"BEGIN<-c><-I><", work,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", work,
 			"/foo.dep.wwi.new><-o><", work,
 			"/foo.dep.s.new><", work, "/foo.dep.unit.new>\n");
 		let wantprivateassembler: str = strings.concat(
@@ -1778,11 +1867,14 @@ fn writediamond(td: str, reverse: bool) str = {
 		ctrace = testenv.readfile(compilertrace);
 		atrace = testenv.readfile(assemblertrace);
 		let wantexportcompiler: str = strings.concat(
-			"BEGIN<-c><-I><", work,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.dep.v0.r0.init><-c><-I><", work,
 			"/foo.dep.wwi.new><-o><", work,
 			"/foo.dep.s.new><", work, "/foo.dep.unit.new>\n",
-			"BEGIN<-c><--import><foo.dep><", work,
-			"/foo.dep.wwi><-I><", work,
+			"BEGIN<--package-init-symbol>",
+			"<__ww..pkg.p.foo.bar.v0.r0.init><-c>",
+			"<--import><foo.dep><", work,
+			"/foo.dep.wwi.new><-I><", work,
 			"/foo.bar.wwi.new><-o><", work,
 			"/foo.bar.s.new><", work, "/foo.bar.unit.new>\n");
 		let wantexportassembler: str = strings.concat(
diff --git a/test/sep/sepbuild_test.ww b/test/sep/sepbuild_test.ww
index 1b852b30..15de177f 100644
--- a/test/sep/sepbuild_test.ww
+++ b/test/sep/sepbuild_test.ww
@@ -101,7 +101,8 @@ fn samefile(label: str, what: str, a: str, b: str) void = {
 		i += 1;
 	};
 
-	// cs==ww (rule 10): per-package artifacts + the final binary
+	// cs==ww (rule 10): per-source-action artifacts + the final binary;
+	// sepinit owns the command root's additional dispatcher artifacts.
 	let sufs: []str = [".s", ".wwi", ".a", ".unit.ww"];
 	let p: i32 = 0;
 	for (p < pkgs.len) {
@@ -164,7 +165,8 @@ fn samefile(label: str, what: str, a: str, b: str) void = {
 		s += 1;
 	};
 
-	// cs==ww for the complete package artifacts, including the root archive.
+	// cs==ww for every source-action artifact, including the root archive;
+	// sepinit owns the command root's additional dispatcher artifacts.
 	let pkgs: []str = ["c", "__root"];
 	let sufs: []str = [".s", ".wwi", ".a", ".unit.ww"];
 	let p: i32 = 0;
diff --git a/test/sep/sepimport_test.ww b/test/sep/sepimport_test.ww
index a436d286..6f95b601 100644
--- a/test/sep/sepimport_test.ww
+++ b/test/sep/sepimport_test.ww
@@ -209,11 +209,12 @@ fn depmainrow(label: str, entry: str, want: i32, deps: str,
 		l += 1;
 	};
 
-	// Both the dependency and raw explicit root emit complete package artifacts.
+	// Both the dependency and raw explicit root emit complete source-action
+	// artifacts; sepinit owns command-dispatcher artifact parity.
 	let parts: []str = ["aa.s", "aa.wwi", "aa.a", "aa.unit.ww",
 		"__root.s", "__root.wwi", "__root.a", "__root.unit.ww"];
 
-	// cs==ww (rule 10) per layout over the complete package-artifact table
+	// cs==ww (rule 10) per layout over the source-action artifact table
 	let l2: i32 = 0;
 	for (l2 < 2) {
 		let p: i32 = 0;
diff --git a/test/sep/seplink_test.ww b/test/sep/seplink_test.ww
index b4ab6129..b7c9717e 100644
--- a/test/sep/seplink_test.ww
+++ b/test/sep/seplink_test.ww
@@ -4,8 +4,9 @@ package seplink_test;
 // retired native carriers test/wcc/989_separchive_run.c and
 // 989_sepcycle_dup.c; every assertion preserved.
 //
-// archive — `ww build` wraps every package action's .o in the existing
-// deterministic single-member .a and links the root archive first:
+// archive — `ww build` wraps every library package action's .o in the existing
+// deterministic single-member .a; the command root also owns its fixed
+// dispatcher member, and the linker receives that root archive first:
 // build+run exit 7 both stages; __root.a + helper.a present; both archives
 // are byte-identical across stages; 3 cold cstage rebuilds emit
 // byte-identical archives (zeroed mtime/uid/gid, fixed mode/member —
diff --git a/test/wcc/996_dyn_ww.c b/test/wcc/996_dyn_ww.c
index 2cd995b9..059b0b09 100644
--- a/test/wcc/996_dyn_ww.c
+++ b/test/wcc/996_dyn_ww.c
@@ -81,14 +81,14 @@ main(void)
 	}
 
 	/* #93 sep layout: build an explicit command source via `ww build`,
-	 * then independently link <stem>.sepwork/__root.o with both linkers.
+	 * then independently link <stem>.sepwork/__root.a with both linkers.
 	 * The direct getpid call guarantees one dynamic libc relocation. */
 	char cmd[4096], src[256], stem[256], scratch[320];
-	char obj[384], co[256], wo[256];
+	char archive[384], co[256], wo[256];
 	snprintf(src, sizeof src, "%s/dyn.ww", td);
 	snprintf(stem, sizeof stem, "%s/built", td);
 	snprintf(scratch, sizeof scratch, "%s.sepwork", stem);
-	snprintf(obj, sizeof obj, "%s/__root.o", scratch);
+	snprintf(archive, sizeof archive, "%s/__root.a", scratch);
 	snprintf(co, sizeof co, "%s/c", td);
 	snprintf(wo, sizeof wo, "%s/w", td);
 
@@ -125,7 +125,7 @@ main(void)
 	snprintf(cmd, sizeof cmd,
 	    "%s/w6l -o %s %s -L %s "
 	    "-l c %s/out/lib/libwwrt.a 2>/dev/null",
-	    bin, co, obj, libdir, cwd);
+	    bin, co, archive, libdir, cwd);
 	if (runwait(cmd) != 0) {
 		fprintf(stderr, "w6l_ww-dyn FAIL: C w6l errored\n");
 		rc = 1;
@@ -135,7 +135,7 @@ main(void)
 	snprintf(cmd, sizeof cmd,
 	    "%s/w6l_ww -o %s %s -L %s "
 	    "-l c %s/out/lib/libwwrt.a 2>/dev/null",
-	    bin, wo, obj, libdir, cwd);
+	    bin, wo, archive, libdir, cwd);
 	if (runwait(cmd) != 0) {
 		fprintf(stderr, "w6l_ww-dyn FAIL: ww w6l errored\n");
 		rc = 1;
diff --git a/test/wcc/data/alias_g73_static_str/case.ww b/test/wcc/data/alias_g73_static_str/case.ww
index 16aaaf98..b3998eaa 100644
--- a/test/wcc/data/alias_g73_static_str/case.ww
+++ b/test/wcc/data/alias_g73_static_str/case.ww
@@ -1,4 +1,4 @@
-//ww:error "#129 A.2 scope"
+//ww:run
 package main;
 type s1t = str;
 type s2t = s1t;
diff --git a/test/wcc/data/alias_infptr_global/case.ww b/test/wcc/data/alias_infptr_global/case.ww
index d93d3716..7963a06b 100644
--- a/test/wcc/data/alias_infptr_global/case.ww
+++ b/test/wcc/data/alias_infptr_global/case.ww
@@ -1,10 +1,6 @@
-//ww:error "runtime initializer unsupported (alloc/call; rule 7)"
-// Module-scope alloc initializer: no DATAW slot exists for a
-// runtime-computed global, so pre-reject every reference died at
-// LINK time ("undefined reference to 'main.gp'") — the checker now
-// rejects at the declaration on both frontends (Hare model:
-// ref/harec/src/check.c:4360 rejects non-compile-time-evaluable
-// global initializers; ww has no @init path).
+//ww:run
+// A module-scope allocation is evaluated once by the package task before
+// main; its pointer remains live in the zero-backed package variable.
 package main;
 type box = struct { s: str, n: int };
 let gp = alloc(box { s = "hi", n = 1 })!;
diff --git a/test/wcc/data/alias_slcstr_plain/case.ww b/test/wcc/data/alias_slcstr_plain/case.ww
index 391c9e74..d82cfbb5 100644
--- a/test/wcc/data/alias_slcstr_plain/case.ww
+++ b/test/wcc/data/alias_slcstr_plain/case.ww
@@ -1,7 +1,9 @@
-//ww:error "slice-of-{str,slice,tagged} literal static-init unsupported"
+//ww:run
 package main;
 let G: []str = ["aa", "bbb"];
 export fn main() i32 = {
-	if (len(G[0]) != 2) { return 1; };
+	if (G.len != 2 || G.cap != 2) { return 1; };
+	if (len(G[0]) != 2) { return 2; };
+	if (len(G[1]) != 3) { return 3; };
 	return 0;
 };
diff --git a/test/wcc/data/arr_nested_ellipsis_reject/case.ww b/test/wcc/data/arr_nested_ellipsis_reject/case.ww
index d8447e1a..e0489fd8 100644
--- a/test/wcc/data/arr_nested_ellipsis_reject/case.ww
+++ b/test/wcc/data/arr_nested_ellipsis_reject/case.ww
@@ -1,7 +1,12 @@
-//ww:error "repeat with nested-array elements"
-// #156/rule-7 carrier: a `...` repeat marker with a nested-array element must
-// REJECT on both stages (no consumer needs it; powers_of_ten is fully
-// enumerated). From test/wcc/919_array_static_init_run.c nested_ellipsis_reject.
+//ww:run
+// A fixed outer array gives the nested-row repeat an exact target length.
+// Package initialization evaluates the row once and fills every remaining row.
 package main;
 let A: [4][2]u64 = [[1u64, 2u64]...];
-export fn main() i32 = { return 0; };
+export fn main() i32 = {
+	if (A[0][0] != 1 || A[0][1] != 2) { return 1; };
+	if (A[1][0] != 1 || A[1][1] != 2) { return 2; };
+	if (A[2][0] != 1 || A[2][1] != 2) { return 3; };
+	if (A[3][0] != 1 || A[3][1] != 2) { return 4; };
+	return 0;
+};
diff --git a/test/wcc/data/callinit_global_reject/case.ww b/test/wcc/data/callinit_global_reject/case.ww
index 99b27133..0faf82b7 100644
--- a/test/wcc/data/callinit_global_reject/case.ww
+++ b/test/wcc/data/callinit_global_reject/case.ww
@@ -1,6 +1,5 @@
-//ww:error "runtime initializer unsupported (alloc/call; rule 7)"
-// The call sibling of alias_infptr_global's alloc reject: a
-// module-scope call initializer has no link-time data either.
+//ww:run-exit 7
+// A module-scope call initializer executes once in the package task.
 package main;
 fn mk() i64 = { return 7; };
 let gc: i64 = mk();
diff --git a/test/wcc/data/r687_neg_str_slicelit/case.ww b/test/wcc/data/r687_neg_str_slicelit/case.ww
index a0125bdc..a5c52b96 100644
--- a/test/wcc/data/r687_neg_str_slicelit/case.ww
+++ b/test/wcc/data/r687_neg_str_slicelit/case.ww
@@ -1,4 +1,4 @@
-//ww:error "slice-of-{str,slice,tagged} literal static-init unsupported"
+//ww:run-exit 2
 package main;
 let g: []str = ["a", "b"];
 export fn main() i32 = { return g.len: i32; };
diff --git a/test/wcc/data/r83_gtag_boolcast_reject/case.ww b/test/wcc/data/r83_gtag_boolcast_reject/case.ww
index 949abdc4..f8e32f82 100644
--- a/test/wcc/data/r83_gtag_boolcast_reject/case.ww
+++ b/test/wcc/data/r83_gtag_boolcast_reject/case.ww
@@ -1,5 +1,12 @@
-//ww:error "unsupported variant init"
+//ww:run-exit 11
 package main;
 type u = (int | bool | str);
 let g: u = true: u;
-export fn main() i32 = { return 0; };
+export fn main() i32 = {
+	match (g) {
+	case let n: int => return n: i32;
+	case let b: bool => return 11;
+	case let s: str => return 22;
+	};
+	return 99;
+};
diff --git a/test/wcc/data/r83_gtag_intcast_reject/case.ww b/test/wcc/data/r83_gtag_intcast_reject/case.ww
index b5e4fe26..8f9b7597 100644
--- a/test/wcc/data/r83_gtag_intcast_reject/case.ww
+++ b/test/wcc/data/r83_gtag_intcast_reject/case.ww
@@ -1,5 +1,12 @@
-//ww:error "unsupported variant init"
+//ww:run-exit 7
 package main;
 type u = (int | bool | str);
 let g: u = 7: u;
-export fn main() i32 = { return 0; };
+export fn main() i32 = {
+	match (g) {
+	case let n: int => return n: i32;
+	case let b: bool => return 11;
+	case let s: str => return 22;
+	};
+	return 99;
+};
diff --git a/test/wcc/data/r84_tagstatic_wide_array/case.ww b/test/wcc/data/r84_tagstatic_wide_array/case.ww
index dfed0472..90449207 100644
--- a/test/wcc/data/r84_tagstatic_wide_array/case.ww
+++ b/test/wcc/data/r84_tagstatic_wide_array/case.ww
@@ -1,4 +1,18 @@
-//ww:error "tagged-union array element static-init needs a zero/int payload"
+//ww:run-exit 2
 package main;
 let gs: [2](int | str) = ["hi", 0];
-export fn main() int = { return 0; };
+export fn main() int = {
+	match (gs[0]) {
+	case let n: int => return 10;
+	case let s: str => {
+		if (s.len != 2 || s[0] != 104u8 || s[1] != 105u8) {
+			return 11;
+		};
+	};
+	};
+	match (gs[1]) {
+	case let n: int => { if (n != 0) { return 12; }; };
+	case let s: str => return 13;
+	};
+	return 2;
+};
diff --git a/test/wcc/data/r84_tagstatic_wide_struct/case.ww b/test/wcc/data/r84_tagstatic_wide_struct/case.ww
index e5eef765..6e56f126 100644
--- a/test/wcc/data/r84_tagstatic_wide_struct/case.ww
+++ b/test/wcc/data/r84_tagstatic_wide_struct/case.ww
@@ -1,5 +1,15 @@
-//ww:error "tagged-union struct-field"
+//ww:run-exit 2
 package main;
 type sbox = struct { s: (int | str) };
 let g: sbox = sbox { s = "hi" };
-export fn main() int = { return 0; };
+export fn main() int = {
+	match (g.s) {
+	case let n: int => return 10;
+	case let s: str => {
+		if (s.len != 2 || s[0] != 104u8 || s[1] != 105u8) {
+			return 11;
+		};
+	};
+	};
+	return 2;
+};
diff --git a/test/wcc/data/r944_alias_emit_slcstr_2lvl/case.ww b/test/wcc/data/r944_alias_emit_slcstr_2lvl/case.ww
index 9dde15ec..bc0862ce 100644
--- a/test/wcc/data/r944_alias_emit_slcstr_2lvl/case.ww
+++ b/test/wcc/data/r944_alias_emit_slcstr_2lvl/case.ww
@@ -1,9 +1,11 @@
-//ww:error "slice-of-{str,slice,tagged} literal static-init unsupported"
+//ww:run-exit 0
 package main;
 type ms0 = str;
 type ms = ms0;
 let G: []ms = ["aa", "bbb"];
 export fn main() i32 = {
-	if (len(G[0]) != 2) { return 1; };
+	if (G.len != 2 || G.cap != 2) { return 1; };
+	if (len(G[0]) != 2) { return 2; };
+	if (len(G[1]) != 3) { return 3; };
 	return 0;
 };
diff --git a/test/wcc/data/tslot_t22_reject_global_init/case.ww b/test/wcc/data/tslot_t22_reject_global_init/case.ww
index d3affccf..dc40ace5 100644
--- a/test/wcc/data/tslot_t22_reject_global_init/case.ww
+++ b/test/wcc/data/tslot_t22_reject_global_init/case.ww
@@ -1,4 +1,4 @@
-//ww:error "unsupported element init (int/str literals only; rule 7)"
+//ww:run-exit 4
 package main;
 let g: ((void | size), i64) = (5, 4);
 export fn main() i32 = { return g.1: i32; };
diff --git a/test/wcc/data/tslot_t3_reject_float_global/case.ww b/test/wcc/data/tslot_t3_reject_float_global/case.ww
index dff74b3e..46869e9a 100644
--- a/test/wcc/data/tslot_t3_reject_float_global/case.ww
+++ b/test/wcc/data/tslot_t3_reject_float_global/case.ww
@@ -1,4 +1,4 @@
-//ww:error "unsupported element init (int/str literals only; rule 7)"
+//ww:run
 package main;
 let g: (f64, i64) = (2.5, 4);
 export fn main() i32 = {
diff --git a/test/xmod/collide_test.ww b/test/xmod/collide_test.ww
index 536205f9..86c8be2e 100644
--- a/test/xmod/collide_test.ww
+++ b/test/xmod/collide_test.ww
@@ -2,15 +2,15 @@ package collide_test;
 
 // Cross-module leaf-name collision observers on both driver stages.
 // Ports of the retired native carriers test/wcc/989_fnptrcollide_run.c
-// and 989_barefn_collide_run.c; every assertion preserved.
+// and 989_barefn_collide_run.c; their collision teeth remain explicit under
+// the package-initialization contract.
 //
-// fnptrcollide (#14 F7-c7) — a data global `slot: i64` whose LEAF
-// collides with the imported fn bar.slot must FAIL to build on BOTH
-// stages: type-keyed nodefnptr refuses to fold `&slot` into the fn's
-// TEXT reloc. Pre-fix wwstage was name-keyed and silently BUILT it
-// (a DATAR to the fn symbol — cat-A: cs loud-fails, ww builds). The
-// collision REQUIRES the import path (imported fn leaf vs local data
-// global), so a single-file fixture cannot express it.
+// fnptrcollide (#14 F7-c7) — a data global `slot: i64` whose leaf
+// collides with imported fn bar.slot. `let fp: *i64 = &slot` is valid
+// runtime package initialization: both stages must address main.slot,
+// initialize fp before main, and run 7. The old loud-reject expectation
+// predated runtime package lets. The collision still requires an import,
+// and name-keyed lowering to bar.slot is rejected by exact asm/runtime pins.
 //
 // barefn (#84/#24a) — a `package main;` root `fn run` coexists with
 // imported aa.run: build+run exit 9 on BOTH stages while an explicit
@@ -52,32 +52,86 @@ fn runcode(dir: str, name: str, argv: []str) i32 = {
 };
 
 @test fn fnptrcollide() void = {
+	let td: str = testenv.fresh();
+	let bar: str = strings.concat(td, "/bar");
+	let main: str = strings.concat(td, "/main");
+	assert(os.mkdir(bar, 493) == 0);
+	assert(os.mkdir(main, 493) == 0);
+	testenv.writefile(strings.concat(bar, "/bar.ww"), strings.concat(
+		"package bar;\n",
+		"export fn slot() i64 = { return 99; };\n"));
+	testenv.writefile(strings.concat(main, "/main.ww"), strings.concat(
+		"package main;\n",
+		"import bar;\n",
+		"let slot: i64 = 7;\n",
+		"let fp: *i64 = &slot;\n",
+		"export fn main() int = { let _ = bar.slot(); ",
+		"return (*fp): int; };\n"));
 	let drvs: []str = ["ww", "ww_ww"];
+	let tags: []str = ["cs", "ww"];
+	let works: []str = [strings.concat(td, "/work-c"),
+		strings.concat(td, "/work-ww")];
+	let progs: []str = [strings.concat(td, "/prog.cs"),
+		strings.concat(td, "/prog.ww")];
 	let i: i32 = 0;
 	for (i < 2) {
-		let td: str = testenv.fresh();
-		assert(os.mkdir(strings.concat(td, "/bar"), 493) == 0);
-		testenv.writefile(strings.concat(td, "/bar/bar.ww"),
-			strings.concat(
-			"package bar;\n",
-			"export fn slot() i64 = { return 99; };\n"));
-		testenv.writefile(strings.concat(td, "/main.ww"), strings.concat(
-			"package main;\n",
-			"import bar;\n",
-			"let slot: i64 = 7;\n",
-			"let fp: *i64 = &slot;\n",
-			"export fn main() int = { let _ = bar.slot(); ",
-			"return (*fp): int; };\n"));
-		let av: []str = [testenv.driver(drvs[i]), "build", "-I", "bar",
-			"main.ww"];
-		if (runcode(td, strings.concat("build_", drvs[i]), av) == 0) {
-			fail("fnptrcollide", strings.concat(drvs[i], " built ok, ",
-				"expected the leaf-name collision to be rejected (#14 -- ",
-				"&slot mis-folded to the fn TEXT reloc)"));
+		assert(os.mkdir(works[i], 493) == 0);
+		let av: []str = [testenv.driver(drvs[i]), "build", "-w", works[i],
+			"-I", td, "-o", progs[i], "main"];
+		if (runcode(td, strings.concat("build_", tags[i]), av) != 0) {
+			fail("fnptrcollide", strings.concat(drvs[i], " build failed"));
+		};
+		let rav: []str = [progs[i]];
+		if (runcode(td, strings.concat("run_", tags[i]), rav) != 7) {
+			fail("fnptrcollide", strings.concat(drvs[i], " exit != 7"));
+		};
+		let sourceasm: str = testenv.readfile(strings.concat(works[i],
+			"/main.s"));
+		let initasm: str = testenv.readfile(strings.concat(works[i],
+			"/main.init.s"));
+		let barasm: str = testenv.readfile(strings.concat(works[i], "/bar.s"));
+		if (testenv.occurrences(sourceasm, "DATAW main.slot(SB)") != 1
+			|| testenv.occurrences(sourceasm, "DATAW main.fp(SB)") != 1
+			|| testenv.occurrences(sourceasm,
+				"CALL\t__ww..dispatch(SB)") != 1
+			|| testenv.occurrences(sourceasm,
+				"LEAQ\tmain.slot(SB), AX") != 1
+			|| testenv.occurrences(sourceasm,
+				"MOVQ\tAX, main.fp(SB)") != 1
+			|| testenv.has(sourceasm, "LEAQ\tbar.slot(SB)")
+			|| testenv.has(sourceasm, "DATAR main.fp")
+			|| testenv.occurrences(initasm,
+				"CALL\t__ww..pkg.p.bar.v0.r0.init(SB)") != 1
+			|| testenv.occurrences(initasm,
+				"CALL\t__ww..pkg.p.main.v0.r0.init(SB)") != 1
+			|| testenv.occurrences(barasm, "TEXT bar.slot,") != 1) {
+			fail("fnptrcollide", "runtime initializer selected the colliding fn");
 		};
-		testenv.clean(td);
 		i += 1;
 	};
+	let wantdispatch: str = strings.concat(
+		"//ww:init-root __ww..pkg.p.main.v0.r0.init\n",
+		"//ww:init-call __ww..pkg.p.bar.v0.r0.init\n",
+		"//ww:init-call __ww..pkg.p.main.v0.r0.init\n");
+	if (!testenv.same(wantdispatch, testenv.readfile(strings.concat(works[0],
+		"/main.init.unit.ww")))) {
+		fail("fnptrcollide", "dispatcher did not initialize dependency first");
+	};
+	let names: []str = ["bar.unit.ww", "bar.wwi", "bar.s", "bar.o", "bar.a",
+		"main.unit.ww", "main.wwi", "main.s", "main.o", "main.a",
+		"main.init.unit.ww", "main.init.s", "main.init.o"];
+	i = 0;
+	for (i < names.len) {
+		if (!testenv.same(testenv.readfile(strings.concat(works[0], "/", names[i])),
+		    testenv.readfile(strings.concat(works[1], "/", names[i])))) {
+			fail("fnptrcollide", strings.concat(names[i], " differs by stage"));
+		};
+		i += 1;
+	};
+	if (!testenv.same(testenv.readfile(progs[0]), testenv.readfile(progs[1]))) {
+		fail("fnptrcollide", "Cstage/WWstage binaries differ");
+	};
+	testenv.clean(td);
 };
 
 // __root.s then aa.s: the carrier's fixed #93 sep concat order.