diff --git a/cmd/corestack-goose/internal/authoring/authoring.go b/cmd/corestack-goose/internal/authoring/authoring.go
new file mode 100644
index 0000000..5c834e7
--- /dev/null
+++ b/cmd/corestack-goose/internal/authoring/authoring.go
@@ -0,0 +1,424 @@
+// Package authoring owns the standalone tool's bounded migration source format.
+// It requires one writer and a complete source backup; it never accesses a DB.
+package authoring
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"go/ast"
+	"go/format"
+	"go/parser"
+	"go/token"
+	"io"
+	"math"
+	"os"
+	"path/filepath"
+	"slices"
+	"strconv"
+	"strings"
+	"text/template"
+	"time"
+
+	"github.com/pressly/goose/v3"
+)
+
+const marker = "// Code generated by corestack-goose. DO NOT EDIT.\n"
+const goTemplate = `package migrations
+import (
+ "context"
+ "database/sql"
+ "github.com/pressly/goose/v3"
+)
+func migration{{.CamelName}}(version int64) *goose.Migration {
+ return goose.NewGoMigration(version, &goose.GoFunc{RunTx: up{{.CamelName}}}, &goose.GoFunc{RunTx: down{{.CamelName}}})
+}
+func up{{.CamelName}}(ctx context.Context, tx *sql.Tx) error {
+ return nil
+}
+func down{{.CamelName}}(ctx context.Context, tx *sql.Tx) error {
+ return nil
+}
+`
+
+type migration struct {
+	name, factory string
+	version       int64
+	data          []byte
+}
+
+type change struct {
+	source, dest string
+	data         []byte
+	replace      bool
+}
+
+type sourceSet struct {
+	dir        string
+	migrations []migration
+	register   []byte
+}
+
+// Create stages Goose's supported templates, then publishes a preflighted set.
+// Go names use lowercase ASCII words separated by underscores. All versions and
+// identifiers must be unique across the directory; existing bodies are preserved.
+func Create(dir, name, kind string) error {
+	if !validName(name) || (kind != "sql" && kind != "go") {
+		return errors.New("create: expected lowercase_words name and sql|go")
+	}
+	set, err := scan(dir)
+	if err != nil {
+		return err
+	}
+	stage, err := os.MkdirTemp("", "corestack-goose-*")
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(stage)
+	var tmpl *template.Template
+	if kind == "go" {
+		tmpl, err = template.New("migration").Parse(goTemplate)
+		if err != nil {
+			return err
+		}
+	}
+	if err := goose.CreateWithTemplate(nil, stage, tmpl, name, kind); err != nil {
+		return fmt.Errorf("stage creation: %w", err)
+	}
+	entries, err := os.ReadDir(stage)
+	if err != nil {
+		return err
+	}
+	if len(entries) != 1 {
+		return errors.New("stage creation: expected one migration")
+	}
+	filename := entries[0].Name()
+	data, err := os.ReadFile(filepath.Join(stage, filename))
+	if err != nil {
+		return err
+	}
+	if kind == "go" {
+		filename = strings.TrimSuffix(filename, ".go") + "_migration.go"
+		data, err = format.Source(data)
+		if err != nil {
+			return err
+		}
+	}
+	item, err := parseMigration(filename, data)
+	if err != nil {
+		return err
+	}
+	items := append(slices.Clone(set.migrations), item)
+	if err := validate(items); err != nil {
+		return err
+	}
+	register, err := aggregate(items)
+	if err != nil {
+		return err
+	}
+	changes := []change{{dest: filename, data: data}}
+	changes = appendRegister(changes, set, register)
+	return publish(set, changes, writeExclusive)
+}
+
+// Fix preserves sequential IDs and allocates timestamp IDs after their maximum.
+// It never rewrites migration bodies or database history. Commit or separately
+// back up all sources first; on failure restore that backup before retrying.
+func Fix(dir string) error {
+	set, err := scan(dir)
+	if err != nil {
+		return err
+	}
+	items := slices.Clone(set.migrations)
+	var highest int64
+	for _, item := range items {
+		if !timestamp(item.version) && item.version > highest {
+			highest = item.version
+		}
+	}
+	var changes []change
+	for i := range items {
+		if !timestamp(items[i].version) {
+			continue
+		}
+		if highest == math.MaxInt64 {
+			return errors.New("fix: sequential version overflow")
+		}
+		highest++
+		old := items[i].name
+		items[i].version = highest
+		items[i].name = fmt.Sprintf("%05d_%s", highest, strings.SplitN(old, "_", 2)[1])
+		changes = append(changes, change{source: old, dest: items[i].name, data: items[i].data})
+	}
+	if err := validate(items); err != nil {
+		return err
+	}
+	register, err := aggregate(items)
+	if err != nil {
+		return err
+	}
+	changes = appendRegister(changes, set, register)
+	return publish(set, changes, writeExclusive)
+}
+
+func timestamp(version int64) bool {
+	t, err := time.Parse("20060102150405", strconv.FormatInt(version, 10))
+	return err == nil && t.Unix() > 0
+}
+
+func validName(name string) bool {
+	for _, word := range strings.Split(name, "_") {
+		if word == "" {
+			return false
+		}
+		for _, r := range word {
+			if r < 'a' || r > 'z' {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+func parseMigration(name string, data []byte) (migration, error) {
+	item := migration{name: name, data: data}
+	ext := filepath.Ext(name)
+	parts := strings.SplitN(strings.TrimSuffix(name, ext), "_", 2)
+	if len(parts) != 2 {
+		return item, fmt.Errorf("unsupported migration filename %s", name)
+	}
+	raw := parts[0]
+	if strings.IndexFunc(raw, func(r rune) bool { return r < '0' || r > '9' }) >= 0 {
+		return item, fmt.Errorf("invalid version in %s", name)
+	}
+	v, err := strconv.ParseInt(raw, 10, 64)
+	if err != nil || v <= 0 {
+		return item, fmt.Errorf("invalid positive int64 version in %s", name)
+	}
+	item.version = v
+	if ext == ".sql" {
+		return item, nil
+	}
+	logical, ok := strings.CutSuffix(parts[1], "_migration")
+	if !ok || !validName(logical) {
+		return item, fmt.Errorf("unsupported Go filename %s: use <version>_<lowercase_words>_migration.go", name)
+	}
+	var camel strings.Builder
+	for _, word := range strings.Split(logical, "_") {
+		camel.WriteString(strings.ToUpper(word[:1]) + word[1:])
+	}
+	item.factory = "migration" + camel.String()
+	file, err := parser.ParseFile(token.NewFileSet(), name, data, 0)
+	if err != nil {
+		return item, fmt.Errorf("parse %s: %w", name, err)
+	}
+	if file.Name.Name != "migrations" {
+		return item, fmt.Errorf("%s: expected package migrations", name)
+	}
+	count := 0
+	for _, decl := range file.Decls {
+		fn, ok := decl.(*ast.FuncDecl)
+		if !ok || fn.Name.Name != item.factory {
+			continue
+		}
+		var signature bytes.Buffer
+		if err := format.Node(&signature, token.NewFileSet(), fn.Type); err != nil {
+			return item, err
+		}
+		if fn.Recv != nil || signature.String() != "func(version int64) *goose.Migration" || fn.Body == nil {
+			return item, fmt.Errorf("%s: expected %s(version int64) *goose.Migration factory", name, item.factory)
+		}
+		count++
+	}
+	if count != 1 {
+		return item, fmt.Errorf("%s: expected one %s factory", name, item.factory)
+	}
+	return item, nil
+}
+
+func validate(items []migration) error {
+	slices.SortFunc(items, func(a, b migration) int {
+		if a.version < b.version {
+			return -1
+		}
+		if a.version > b.version {
+			return 1
+		}
+		return 0
+	})
+	factories := make(map[string]bool)
+	for i, item := range items {
+		if i > 0 {
+			previous := items[i-1]
+			if previous.version == item.version {
+				return fmt.Errorf("duplicate version: %s and %s", previous.name, item.name)
+			}
+			if previous.name >= item.name {
+				return fmt.Errorf("lexical/numeric order disagreement: %s and %s; use consistent padding", previous.name, item.name)
+			}
+		}
+		if item.factory != "" {
+			if factories[item.factory] {
+				return fmt.Errorf("duplicate factory %s", item.factory)
+			}
+			factories[item.factory] = true
+		}
+	}
+	return nil
+}
+
+func aggregate(items []migration) ([]byte, error) {
+	var out strings.Builder
+	out.WriteString(marker + "\n// Package migrations contains application-owned SQL and Go migrations.\n// corestack-goose owns this aggregate; registrations are provider-local.\npackage migrations\n\nimport \"github.com/pressly/goose/v3\"\n\n// GoMigrations returns fresh provider-local registrations on every call.\nfunc GoMigrations() []*goose.Migration {\nreturn []*goose.Migration{\n")
+	for _, item := range items {
+		if item.factory != "" {
+			fmt.Fprintf(&out, "%s(%d),\n", item.factory, item.version)
+		}
+	}
+	out.WriteString("}\n}\n")
+	return format.Source([]byte(out.String()))
+}
+
+func scan(dir string) (sourceSet, error) {
+	set := sourceSet{dir: dir}
+	absolute, err := filepath.Abs(dir)
+	if err != nil {
+		return set, err
+	}
+	resolved, err := filepath.EvalSymlinks(absolute)
+	if err != nil {
+		return set, err
+	}
+	if resolved != absolute {
+		return set, fmt.Errorf("%s: symlink paths are unsupported", dir)
+	}
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return set, err
+	}
+	for _, entry := range entries {
+		name := entry.Name()
+		if name != "register.go" && filepath.Ext(name) != ".go" && filepath.Ext(name) != ".sql" {
+			continue
+		}
+		info, err := entry.Info()
+		if err != nil {
+			return set, err
+		}
+		if !info.Mode().IsRegular() {
+			return set, fmt.Errorf("%s: expected regular file", name)
+		}
+		data, err := os.ReadFile(filepath.Join(dir, name))
+		if err != nil {
+			return set, err
+		}
+		if name == "register.go" {
+			set.register = data
+			continue
+		}
+		item, err := parseMigration(name, data)
+		if err != nil {
+			return set, err
+		}
+		set.migrations = append(set.migrations, item)
+	}
+	if err := validate(set.migrations); err != nil {
+		return set, err
+	}
+	expected, err := aggregate(set.migrations)
+	if err != nil {
+		return set, err
+	}
+	if set.register != nil {
+		normalized, err := format.Source(set.register)
+		if err != nil || !bytes.HasPrefix(set.register, []byte(marker)) || !bytes.Equal(normalized, expected) {
+			return set, errors.New("register.go: unsupported or drifted aggregate; restore the complete source backup")
+		}
+	} else {
+		for _, item := range set.migrations {
+			if item.factory != "" {
+				return set, errors.New("register.go missing: restore the complete source backup")
+			}
+		}
+	}
+	return set, nil
+}
+
+func appendRegister(changes []change, set sourceSet, data []byte) []change {
+	if bytes.Equal(data, set.register) {
+		return changes
+	}
+	return append(changes, change{dest: "register.go", data: data, replace: set.register != nil})
+}
+
+func writeExclusive(path string, data []byte) error {
+	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o666)
+	if err != nil {
+		return err
+	}
+	_, writeErr := io.Copy(file, bytes.NewReader(data))
+	return errors.Join(writeErr, file.Close())
+}
+
+// invariant: publish complete destinations before deleting sources; a failure
+// stops the plan and requires manual source restoration, never an automatic retry.
+func publish(set sourceSet, changes []change, write func(string, []byte) error) error {
+	if len(changes) == 0 {
+		return nil
+	}
+	for _, op := range changes {
+		if !op.replace {
+			if _, err := os.Lstat(filepath.Join(set.dir, op.dest)); !errors.Is(err, os.ErrNotExist) {
+				return fmt.Errorf("destination %s exists or cannot be checked: %w", op.dest, errors.Join(err, os.ErrExist))
+			}
+		}
+	}
+	stage, err := os.MkdirTemp(set.dir, ".corestack-goose-*")
+	if err != nil {
+		return err
+	}
+	defer os.RemoveAll(stage)
+	for i, op := range changes {
+		if err := writeExclusive(filepath.Join(stage, strconv.Itoa(i)), op.data); err != nil {
+			return fmt.Errorf("stage %s: %w", op.dest, err)
+		}
+	}
+	var completed []string
+	for i, op := range changes {
+		dest := filepath.Join(set.dir, op.dest)
+		if op.replace {
+			var current []byte
+			info, statErr := os.Lstat(dest)
+			if statErr != nil || !info.Mode().IsRegular() {
+				err = fmt.Errorf("aggregate is no longer regular: %w", errors.Join(statErr, os.ErrInvalid))
+			} else {
+				current, err = os.ReadFile(dest)
+				if err == nil && !bytes.Equal(current, set.register) {
+					err = errors.New("aggregate changed since preflight")
+				}
+				if err == nil {
+					err = os.Rename(filepath.Join(stage, strconv.Itoa(i)), dest)
+				}
+			}
+		} else {
+			err = write(dest, op.data)
+		}
+		if err == nil {
+			completed = append(completed, op.dest)
+			if op.source != "" {
+				err = os.Remove(filepath.Join(set.dir, op.source))
+				if err == nil {
+					completed = append(completed, "removed "+op.source)
+				}
+			}
+		}
+		if err != nil {
+			var outstanding []string
+			for _, pending := range changes[i:] {
+				outstanding = append(outstanding, fmt.Sprintf("%s -> %s", pending.source, pending.dest))
+			}
+			return fmt.Errorf("authoring stopped: %w; completed %v; inspect current/partial destination %s; outstanding %v; restore complete source backup before retry", err, completed, op.dest, outstanding)
+		}
+	}
+	return nil
+}
diff --git a/cmd/corestack-goose/internal/authoring/authoring_test.go b/cmd/corestack-goose/internal/authoring/authoring_test.go
new file mode 100644
index 0000000..49505af
--- /dev/null
+++ b/cmd/corestack-goose/internal/authoring/authoring_test.go
@@ -0,0 +1,313 @@
+package authoring
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func directory(t *testing.T) string {
+	t.Helper()
+	dir, err := filepath.EvalSymlinks(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	return dir
+}
+func put(t *testing.T, dir, name string, data []byte) {
+	t.Helper()
+	if err := os.WriteFile(filepath.Join(dir, name), data, 0o600); err != nil {
+		t.Fatal(err)
+	}
+}
+func snapshot(t *testing.T, dir string) map[string]string {
+	t.Helper()
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	result := map[string]string{}
+	for _, entry := range entries {
+		if entry.IsDir() {
+			result[entry.Name()] = "<directory>"
+			continue
+		}
+		data, err := os.ReadFile(filepath.Join(dir, entry.Name()))
+		if err != nil {
+			t.Fatal(err)
+		}
+		result[entry.Name()] = string(data)
+	}
+	return result
+}
+func seedGo(t *testing.T, dir, name string, version int64) {
+	t.Helper()
+	if err := Create(dir, name, "go"); err != nil {
+		t.Fatal(err)
+	}
+	set, err := scan(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	item := set.migrations[len(set.migrations)-1]
+	old := item.name
+	item.name = fmt.Sprintf("%05d_%s", version, strings.SplitN(old, "_", 2)[1])
+	item.version = version
+	if err := os.Rename(filepath.Join(dir, old), filepath.Join(dir, item.name)); err != nil {
+		t.Fatal(err)
+	}
+	set.migrations[len(set.migrations)-1] = item
+	data, err := aggregate(set.migrations)
+	if err != nil {
+		t.Fatal(err)
+	}
+	put(t, dir, "register.go", data)
+}
+func TestCreateFixAndPreserveEdits(t *testing.T) {
+	dir := directory(t)
+	seedGo(t, dir, "test", 20261028093000)
+	name := "20261028093000_test_migration.go"
+	before := snapshot(t, dir)[name]
+	edited := strings.Replace(before, "return nil", "// application body\n return tx.QueryRowContext(ctx, \"SELECT 1\").Err()", 1)
+	put(t, dir, name, []byte(edited))
+	put(t, dir, "00007_existing.sql", []byte("-- +goose Up\nSELECT 1;\n-- +goose Down\nSELECT 1;\n"))
+	put(t, dir, "20261028103000_next.sql", []byte("-- +goose Up\nSELECT 2;\n-- +goose Down\nSELECT 2;\n"))
+	if err := Fix(dir); err != nil {
+		t.Fatal(err)
+	}
+	after := snapshot(t, dir)
+	if after["00008_test_migration.go"] != edited || after["00009_next.sql"] == "" || !strings.Contains(after["register.go"], "migrationTest(8)") {
+		t.Fatal(after)
+	}
+	if err := Fix(dir); err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(after, snapshot(t, dir)) {
+		t.Fatal("repeated fix changed set")
+	}
+	if err := Create(dir, "new_sql", "sql"); err != nil {
+		t.Fatal(err)
+	}
+	if err := Fix(dir); err != nil {
+		t.Fatal(err)
+	}
+	if snapshot(t, dir)["00010_new_sql.sql"] == "" {
+		t.Fatal("creation failed to preserve sequence")
+	}
+}
+func TestPreflightRejections(t *testing.T) {
+	for _, tc := range []struct {
+		name    string
+		prepare func(*testing.T, string)
+		want    string
+	}{
+		{"duplicate", func(t *testing.T, d string) { put(t, d, "00001_one.sql", nil); put(t, d, "1_two.sql", nil) }, "duplicate version"},
+		{"invalid", func(t *testing.T, d string) { put(t, d, "-1_bad.sql", nil) }, "invalid version"},
+		{"zero", func(t *testing.T, d string) { put(t, d, "00000_bad.sql", nil) }, "positive int64"},
+		{"overflow", func(t *testing.T, d string) { put(t, d, "9223372036854775808_bad.sql", nil) }, "positive int64"},
+		{"order", func(t *testing.T, d string) { put(t, d, "2_two.sql", nil); put(t, d, "10_ten.sql", nil) }, "order disagreement"},
+		{"output-order", func(t *testing.T, d string) { put(t, d, "1_one.sql", nil); put(t, d, "20261028093000_two.sql", nil) }, "order disagreement"},
+		{"factory", func(t *testing.T, d string) {
+			seedGo(t, d, "example", 1)
+			p := filepath.Join(d, "00001_example_migration.go")
+			b, err := os.ReadFile(p)
+			if err != nil {
+				t.Fatal(err)
+			}
+			put(t, d, filepath.Base(p), bytes.ReplaceAll(b, []byte("version int64"), []byte("version int")))
+		}, "expected migrationExample"},
+		{"package", func(t *testing.T, d string) {
+			seedGo(t, d, "example", 1)
+			b := snapshot(t, d)["00001_example_migration.go"]
+			put(t, d, "00001_example_migration.go", []byte(strings.Replace(b, "package migrations", "package other", 1)))
+		}, "package migrations"},
+		{"stock", func(t *testing.T, d string) { put(t, d, "00001_example.go", []byte("package migrations")) }, "unsupported Go filename"},
+		{"missing-aggregate", func(t *testing.T, d string) {
+			seedGo(t, d, "example", 1)
+			if err := os.Remove(filepath.Join(d, "register.go")); err != nil {
+				t.Fatal(err)
+			}
+		}, "register.go missing"},
+		{"drift", func(t *testing.T, d string) {
+			seedGo(t, d, "example", 1)
+			b := snapshot(t, d)["register.go"]
+			put(t, d, "register.go", []byte(strings.Replace(b, "migrationExample(1)", "migrationExample(2)", 1)))
+		}, "drifted aggregate"},
+		{"handwritten", func(t *testing.T, d string) { put(t, d, "register.go", []byte("package migrations")) }, "drifted aggregate"},
+		{"destination-dir", func(t *testing.T, d string) {
+			put(t, d, "20261028093000_one.sql", nil)
+			if err := os.Mkdir(filepath.Join(d, "00001_one.sql"), 0o700); err != nil {
+				t.Fatal(err)
+			}
+		}, "regular file"},
+		{"sequential-overflow", func(t *testing.T, d string) {
+			put(t, d, "0000020261028093000_one.sql", nil)
+			put(t, d, "9223372036854775807_last.sql", nil)
+		}, "sequential version overflow"},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			dir := directory(t)
+			tc.prepare(t, dir)
+			before := snapshot(t, dir)
+			// Directories are checked separately; every file must survive preflight unchanged.
+			err := Fix(dir)
+			if err == nil || !strings.Contains(err.Error(), tc.want) {
+				t.Fatalf("wanted %s: %v", tc.want, err)
+			}
+			if !reflect.DeepEqual(before, snapshot(t, dir)) {
+				t.Fatal("preflight failure changed files")
+			}
+		})
+	}
+}
+func TestCreateValidationAndCollisions(t *testing.T) {
+	for _, name := range []string{"", "../bad", "Test", "bad__name", "bad2", "bad-name"} {
+		if err := Create(directory(t), name, "go"); err == nil {
+			t.Fatalf("accepted %q", name)
+		}
+	}
+	if err := Create(directory(t), "valid", "other"); err == nil {
+		t.Fatal("accepted unsupported type")
+	}
+	dir := directory(t)
+	seedGo(t, dir, "example", 1)
+	before := snapshot(t, dir)
+	if err := Create(dir, "example", "go"); err == nil || !strings.Contains(err.Error(), "duplicate factory") {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(before, snapshot(t, dir)) {
+		t.Fatal("rejected create changed sources")
+	}
+}
+func TestSymlinksRejected(t *testing.T) {
+	dir := directory(t)
+	link := filepath.Join(directory(t), "link")
+	if err := os.Symlink(dir, link); err != nil {
+		t.Fatal(err)
+	}
+	if err := Fix(link); err == nil || !strings.Contains(err.Error(), "symlink") {
+		t.Fatal(err)
+	}
+	source := filepath.Join(directory(t), "source")
+	if err := os.WriteFile(source, nil, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Symlink(source, filepath.Join(dir, "00001_one.sql")); err != nil {
+		t.Fatal(err)
+	}
+	if err := Fix(dir); err == nil || !strings.Contains(err.Error(), "regular file") {
+		t.Fatal(err)
+	}
+}
+func TestTimestampClassification(t *testing.T) {
+	for _, tc := range []struct {
+		v    int64
+		want bool
+	}{{1, false}, {19700101000000, false}, {19700101000001, true}, {19691231235959, false}, {20260230093000, false}, {20261028093000, true}} {
+		if got := timestamp(tc.v); got != tc.want {
+			t.Fatalf("%d timestamp=%v", tc.v, got)
+		}
+	}
+}
+func TestPartialPublicationAndManualRecovery(t *testing.T) {
+	dir := directory(t)
+	seedGo(t, dir, "example", 20261028093000)
+	before := snapshot(t, dir)
+	set, err := scan(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	item := set.migrations[0]
+	item.name = "00001_example_migration.go"
+	item.version = 1
+	aggregateData, err := aggregate([]migration{item})
+	if err != nil {
+		t.Fatal(err)
+	}
+	changes := []change{{source: set.migrations[0].name, dest: item.name, data: item.data}, {dest: "00002_next.sql", data: []byte("example")}, {dest: "register.go", replace: true, data: aggregateData}}
+	failure := errors.New("injected disk failure")
+	err = publish(set, changes, func(path string, data []byte) error {
+		if strings.HasSuffix(path, "00002_next.sql") {
+			if err := writeExclusive(path, []byte("partial")); err != nil {
+				t.Fatal(err)
+			}
+			return failure
+		}
+		return writeExclusive(path, data)
+	})
+	if !errors.Is(err, failure) || !strings.Contains(err.Error(), "completed [00001_example_migration.go removed 20261028093000_example_migration.go]") || !strings.Contains(err.Error(), "outstanding") || !strings.Contains(err.Error(), "restore complete source backup") {
+		t.Fatal(err)
+	}
+	if snapshot(t, dir)["00002_next.sql"] != "partial" {
+		t.Fatal("partial destination not reported/preserved")
+	}
+	if err := Fix(dir); err == nil {
+		t.Fatal("inconsistent interrupted set accepted")
+	}
+	// Manual recovery restores all paths, including untracked sources and aggregate.
+	for name := range snapshot(t, dir) {
+		if err := os.Remove(filepath.Join(dir, name)); err != nil {
+			t.Fatal(err)
+		}
+	}
+	for name, data := range before {
+		put(t, dir, name, []byte(data))
+	}
+	if err := Fix(dir); err != nil {
+		t.Fatal(err)
+	}
+	if snapshot(t, dir)["00001_example_migration.go"] == "" {
+		t.Fatal("recovered fix failed")
+	}
+}
+func TestExclusiveDestinationAndAggregateRecheck(t *testing.T) {
+	dir := directory(t)
+	if err := Fix(dir); err != nil {
+		t.Fatal(err)
+	}
+	set, err := scan(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	put(t, dir, "00001_collision.sql", []byte("existing"))
+	err = publish(set, []change{{dest: "00001_collision.sql", data: []byte("replace")}}, writeExclusive)
+	if err == nil || snapshot(t, dir)["00001_collision.sql"] != "existing" {
+		t.Fatal("overwrote destination", err)
+	}
+	err = writeExclusive(filepath.Join(dir, "00001_collision.sql"), []byte("replace"))
+	if !errors.Is(err, os.ErrExist) {
+		t.Fatal(err)
+	}
+	err = publish(set, []change{{dest: "00002_ok.sql"}, {dest: "register.go", replace: true, data: []byte("new")}}, func(path string, data []byte) error {
+		put(t, dir, "register.go", []byte("editor changed"))
+		return writeExclusive(path, data)
+	})
+	if err == nil || !strings.Contains(err.Error(), "aggregate changed since preflight") || snapshot(t, dir)["register.go"] != "editor changed" {
+		t.Fatal(err)
+	}
+}
+
+func TestRemovalFailureStopsPublication(t *testing.T) {
+	dir := directory(t)
+	source := "20261028093000_one.sql"
+	if err := os.Mkdir(filepath.Join(dir, source), 0o700); err != nil {
+		t.Fatal(err)
+	}
+	put(t, filepath.Join(dir, source), "block-removal", nil)
+	err := publish(sourceSet{dir: dir}, []change{{source: source, dest: "00001_one.sql", data: []byte("complete destination")}, {dest: "00002_later.sql"}}, writeExclusive)
+	if err == nil || !strings.Contains(err.Error(), "completed [00001_one.sql]") || !strings.Contains(err.Error(), "outstanding") {
+		t.Fatal(err)
+	}
+	if _, err := os.Stat(filepath.Join(dir, "00002_later.sql")); !errors.Is(err, os.ErrNotExist) {
+		t.Fatal("continued after remove failure", err)
+	}
+	data, err := os.ReadFile(filepath.Join(dir, "00001_one.sql"))
+	if err != nil || string(data) != "complete destination" {
+		t.Fatalf("destination lost: %s %v", data, err)
+	}
+}
diff --git a/cmd/corestack-goose/main.go b/cmd/corestack-goose/main.go
new file mode 100644
index 0000000..0d693ea
--- /dev/null
+++ b/cmd/corestack-goose/main.go
@@ -0,0 +1,40 @@
+// Command corestack-goose authors provider-local SQL and Go migrations offline.
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	urfavecli "github.com/urfave/cli/v3"
+	"go.auvem.com/corestack/cmd/corestack-goose/internal/authoring"
+)
+
+func main() {
+	if err := command().Run(context.Background(), os.Args); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
+
+func command() *urfavecli.Command {
+	root := &urfavecli.Command{Name: "corestack-goose", Usage: "Author migrations before deployment"}
+	for _, name := range []string{"create", "fix"} {
+		root.Commands = append(root.Commands, &urfavecli.Command{Name: name,
+			Flags: []urfavecli.Flag{&urfavecli.StringFlag{Name: "dir", Required: true}},
+			Action: func(_ context.Context, cmd *urfavecli.Command) error {
+				if name == "create" {
+					if cmd.NArg() != 2 {
+						return fmt.Errorf("usage: create --dir <dir> <name> sql|go")
+					}
+					return authoring.Create(cmd.String("dir"), cmd.Args().Get(0), cmd.Args().Get(1))
+				}
+				if cmd.NArg() != 0 {
+					return fmt.Errorf("usage: fix --dir <dir>")
+				}
+				return authoring.Fix(cmd.String("dir"))
+			},
+		})
+	}
+	return root
+}
diff --git a/cmd/corestack-goose/main_test.go b/cmd/corestack-goose/main_test.go
new file mode 100644
index 0000000..caba350
--- /dev/null
+++ b/cmd/corestack-goose/main_test.go
@@ -0,0 +1,123 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestGeneratedConsumerAndArtifactBoundary(t *testing.T) {
+	root, err := filepath.Abs("../..")
+	if err != nil {
+		t.Fatal(err)
+	}
+	dir, err := filepath.EvalSymlinks(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	execute := func(cwd, name string, args ...string) []byte {
+		t.Helper()
+		cmd := exec.CommandContext(t.Context(), name, args...)
+		cmd.Dir = cwd
+		out, err := cmd.CombinedOutput()
+		if err != nil {
+			t.Fatalf("%s %v: %v\n%s", name, args, err, out)
+		}
+		return out
+	}
+	tool := filepath.Join(dir, "corestack-goose")
+	execute(root, "go", "build", "-o", tool, "./cmd/corestack-goose")
+	migrations := filepath.Join(dir, "migrations")
+	if err := os.Mkdir(migrations, 0o700); err != nil {
+		t.Fatal(err)
+	}
+	osName := "windows"
+	if runtime.GOOS == "windows" {
+		osName = "linux"
+	}
+	for _, tc := range []struct{ name, kind string }{{"initial", "sql"}, {"test", "go"}, {"create_test", "go"}, {osName, "go"}} {
+		execute(dir, tool, "create", "--dir", migrations, tc.name, tc.kind)
+		execute(dir, tool, "fix", "--dir", migrations)
+	}
+	execute(dir, tool, "fix", "--dir", migrations)
+	source, err := os.ReadFile("testdata/consumer/main.go")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(dir, "main.go"), source, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	module := fmt.Sprintf("module example.com/consumer\n\ngo 1.27.1\n\nrequire go.auvem.com/corestack v0.0.0\nreplace go.auvem.com/corestack => %s\n", filepath.ToSlash(root))
+	if err := os.WriteFile(filepath.Join(dir, "go.mod"), []byte(module), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	binary := filepath.Join(dir, "consumer")
+	execute(dir, "go", "build", "-mod=mod", "-o", binary, ".")
+	out := execute(dir, binary, filepath.Join(dir, "consumer.db"))
+	if !strings.Contains(string(out), "version=4 pending=false versions=1,2,3,4 fresh=true isolated-pending=true") {
+		t.Fatal(string(out))
+	}
+	// Decode package identities rather than guessing from substring matches in go list.
+	deps := execute(dir, "go", "list", "-deps", "-json", ".")
+	decoder := json.NewDecoder(bytes.NewReader(deps))
+	adapterFound := false
+	for decoder.More() {
+		var dep struct{ ImportPath string }
+		if err := decoder.Decode(&dep); err != nil {
+			t.Fatal(err)
+		}
+		if dep.ImportPath == "go.auvem.com/corestack/migrate/lifecycle" {
+			adapterFound = true
+		}
+		if dep.ImportPath == "go.auvem.com/corestack/cmd/corestack-goose" || strings.HasPrefix(dep.ImportPath, "go.auvem.com/corestack/cmd/corestack-goose/") {
+			t.Fatalf("production imports authoring: %s", dep.ImportPath)
+		}
+	}
+	if !adapterFound {
+		t.Fatal("production fixture did not import runtime adapter")
+	}
+	toolSymbols := execute(dir, "go", "tool", "nm", tool)
+	toolEntries := map[string]bool{}
+	for _, line := range strings.Split(string(toolSymbols), "\n") {
+		fields := strings.Fields(line)
+		if len(fields) >= 3 {
+			toolEntries[fields[len(fields)-1]] = true
+		}
+	}
+	for _, entry := range []string{"github.com/pressly/goose/v3.CreateWithTemplate", "go.auvem.com/corestack/cmd/corestack-goose/internal/authoring.Create", "go.auvem.com/corestack/cmd/corestack-goose/internal/authoring.Fix"} {
+		if !toolEntries[entry] {
+			t.Fatalf("standalone authoring entrypoint missing: %s", entry)
+		}
+	}
+	runtimeFound := false
+	symbols := execute(dir, "go", "tool", "nm", binary)
+	for _, line := range strings.Split(string(symbols), "\n") {
+		fields := strings.Fields(line)
+		if len(fields) < 3 {
+			continue
+		}
+		symbol := fields[len(fields)-1]
+		if symbol == "go.auvem.com/corestack/migrate/lifecycle.Commands" {
+			runtimeFound = true
+		}
+		if strings.HasPrefix(symbol, "go.auvem.com/corestack/cmd/corestack-goose/") {
+			t.Fatalf("authoring symbol linked: %s", symbol)
+		}
+		for _, entry := range []string{"Create", "CreateWithTemplate", "Fix", "SetSequential"} {
+			full := "github.com/pressly/goose/v3." + entry
+			if symbol == full || strings.HasPrefix(symbol, full+".") {
+				t.Fatalf("upstream authoring entrypoint linked: %s", symbol)
+			}
+		}
+	}
+	if !runtimeFound {
+		t.Fatal("runtime command symbol missing from production executable")
+	}
+	t.Log("standalone create/fix; unchanged generated SQL+safe-suffix Go compiled and applied; runtime dependency identities and linker symbols verified")
+}
diff --git a/cmd/corestack-goose/testdata/consumer/main.go b/cmd/corestack-goose/testdata/consumer/main.go
new file mode 100644
index 0000000..d9b88b5
--- /dev/null
+++ b/cmd/corestack-goose/testdata/consumer/main.go
@@ -0,0 +1,90 @@
+// Command consumer verifies generated registrations and the production boundary.
+package main
+
+import (
+	"context"
+	"database/sql"
+	"embed"
+	"fmt"
+	"io"
+	"log/slog"
+	"os"
+
+	"example.com/consumer/migrations"
+	"github.com/pressly/goose/v3"
+	urfavecli "github.com/urfave/cli/v3"
+	"go.auvem.com/corestack/lifecycle"
+	"go.auvem.com/corestack/lifecycle/cli"
+	"go.auvem.com/corestack/migrate"
+	adapter "go.auvem.com/corestack/migrate/lifecycle"
+	_ "modernc.org/sqlite"
+)
+
+//go:embed migrations
+var files embed.FS
+
+func main() {
+	ctx := context.Background()
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	var db *sql.DB
+	dbModule := lifecycle.Module{Name: "database", Setup: func(context.Context) error { var err error; db, err = sql.Open("sqlite", os.Args[1]); return err }, Teardown: func(context.Context) error { return db.Close() }}
+	resolver := func(context.Context) (*goose.Provider, error) {
+		return migrate.New(db, goose.DialectSQLite3, files, "migrations", logger, migrations.GoMigrations()...)
+	}
+	root := &urfavecli.Command{Name: "consumer", Commands: []*urfavecli.Command{adapter.Commands(lifecycle.Config{Logger: logger}, []lifecycle.Module{dbModule}, resolver)}}
+	code, err := cli.Run(ctx, root, []string{"consumer", "migrate", "up"})
+	must(err)
+	if code != 0 {
+		panic(code)
+	}
+	db, err = sql.Open("sqlite", os.Args[1])
+	must(err)
+	defer db.Close()
+	p, err := resolver(ctx)
+	must(err)
+	version, err := p.GetDBVersion(ctx)
+	must(err)
+	if version != 4 {
+		panic(version)
+	}
+	pending, err := p.HasPending(ctx)
+	must(err)
+	if pending {
+		panic("pending after apply")
+	}
+	statuses, err := p.Status(ctx)
+	must(err)
+	if len(statuses) != 4 {
+		panic(len(statuses))
+	}
+	for i, status := range statuses {
+		if status.Source.Version != int64(i+1) || status.State != goose.StateApplied {
+			panic(status)
+		}
+	}
+	a, b := migrations.GoMigrations(), migrations.GoMigrations()
+	if len(a) != 3 || len(b) != 3 {
+		panic("missing safe-suffix Go migrations")
+	}
+	for i := range a {
+		if a[i] == b[i] || a[i].Version != int64(i+2) || b[i].Version != int64(i+2) {
+			panic("registration/version isolation")
+		}
+	}
+	isolatedDB, err := sql.Open("sqlite", ":memory:")
+	must(err)
+	defer isolatedDB.Close()
+	isolated, err := migrate.New(isolatedDB, goose.DialectSQLite3, files, "migrations", logger, migrations.GoMigrations()...)
+	must(err)
+	pending, err = isolated.HasPending(ctx)
+	must(err)
+	if !pending {
+		panic("provider isolation")
+	}
+	fmt.Println("version=4 pending=false versions=1,2,3,4 fresh=true isolated-pending=true")
+}
+func must(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/docs/adr/20261028T215512402Z-separate-migration-authoring-tools-from-lifecycle-runtime-adapters.md b/docs/adr/20261028T215512402Z-separate-migration-authoring-tools-from-lifecycle-runtime-adapters.md
index 75488af..c2495c1 100644
--- a/docs/adr/20261028T215512402Z-separate-migration-authoring-tools-from-lifecycle-runtime-adapters.md
+++ b/docs/adr/20261028T215512402Z-separate-migration-authoring-tools-from-lifecycle-runtime-adapters.md
@@ -2,7 +2,7 @@
 title: "Separate migration authoring tools from lifecycle runtime adapters"
 date: 2026-10-28
 status: accepted
-implementation: not-started
+implementation: in-progress
 summary: Keep startup and native migration commands in a thin lifecycle adapter and source creation and reconciliation in a standalone development tool.
 tags:
   - migrations
@@ -36,7 +36,7 @@ Preserve the accepted lifecycle ordering, reverse cleanup, caller-owned resource
 
 ## Decision Outcome
 
-Choose the third option in the root module, with no new dependencies or lifecycle core changes. The owner accepted this decision, including `up-to` and single-step `down`. Implementation has not started; independent delta review precedes production code.
+Choose the third option in the root module, with no new dependencies or lifecycle core changes. The owner accepted this decision, including `up-to` and single-step `down`. Implementation is in progress after independent ADR review; implementation review and publication remain outstanding.
 
 Runtime lives in `go.auvem.com/corestack/migrate/lifecycle` (package lifecycle, examples alias migratelifecycle). It may import migrate's dependencies and `lifecycle/cli`; neither migrate nor lifecycle imports it. Authoring lives only in `cmd/corestack-goose` and its internal implementation, never imported by runtime packages or generated consumer code.
 
@@ -97,8 +97,10 @@ There is no atomic multi-file guarantee. Stage first, fully publish each destina
 * Delivery touches adapter/tool files, migrate authoring guidance/doc comment, focused tests, examples and fixtures; no current callers, publication configuration or dependencies need changes. Assess authoring complexity during implementation; escalate material growth such as arbitrary-source compatibility or automated crash recovery. Consumer docs recommend the standalone flow and link Goose concepts rather than reproduce its manual.
 * Validate both startup policies (including require blocking later startup), all five leaves against SQLite, lifecycle/context/error paths, help/usage without database setup, and status writer failures. Cover version validation and Goose zero behavior, UpTo targets and single-step Down.
 * Build a runtime-only production fixture and standalone tool separately. Check production dependencies/binary symbols exclude this project's authoring package and file-writing entry points; Goose's upstream authoring source may remain in the dependency. Build/test both artifacts.
-* The decisive flow creates SQL/Go, fixes timestamp IDs, compiles unedited registrations (including test, create_test and a host-incompatible platform name), applies to SQLite, and verifies versions, pending state and provider isolation. Also test collisions, unsupported/drifted aggregates, duplicate/mixed IDs, repeated fix, and injected partial-write failure followed by documented source restoration. These remain delivery gates, not completed checks.
+* The decisive flow creates SQL/Go, fixes timestamp IDs, compiles unedited registrations (including test, create_test and a host-incompatible platform name), applies to SQLite, and verifies versions, pending state and provider isolation. Also test collisions, unsupported/drifted aggregates, duplicate/mixed IDs, repeated fix, and injected partial-write failure followed by documented source restoration. These checks pass locally; independent implementation review and publication remain outstanding.
 
 ## More Information
 
-Feasibility is source-inspected, not validated end to end. Pinned Goose v3.29.0 [CreateWithTemplate](https://github.com/pressly/goose/blob/v3.29.0/create.go) provides Version/CamelName template values and exclusive creation, but no returned path and possible partial template-error output, motivating staging. [Fix](https://github.com/pressly/goose/blob/v3.29.0/fix.go) uses os.Rename without aggregate maintenance or no-overwrite guarantees; reuse creation, not that reconciliation. [NewGoMigration](https://github.com/pressly/goose/blob/v3.29.0/migration.go) and [provider options](https://github.com/pressly/goose/blob/v3.29.0/provider_options.go) support fresh provider-local registration. [Provider operations](https://github.com/pressly/goose/blob/v3.29.0/provider.go) and [initialization](https://github.com/pressly/goose/blob/v3.29.0/provider_run.go) establish ownership and version-table behavior. Native [argument validation](https://github.com/urfave/cli/blob/v3.14.0/command_run.go) precedes Action. These sources were read locally; integration and artifact exclusion await implementation.
+The early real flow built the standalone tool, generated SQL and Go sources, reconciled timestamps, compiled unchanged registrations and applied them to SQLite with fresh-provider isolation. Focused fixtures exercise the production runtime boundary; final checks and independent implementation review remain delivery gates. Pinned Goose v3.29.0 [CreateWithTemplate](https://github.com/pressly/goose/blob/v3.29.0/create.go) provides Version/CamelName template values and exclusive creation, but no returned path and possible partial template-error output, motivating staging. [Fix](https://github.com/pressly/goose/blob/v3.29.0/fix.go) uses os.Rename without aggregate maintenance or no-overwrite guarantees; reuse creation, not that reconciliation. [NewGoMigration](https://github.com/pressly/goose/blob/v3.29.0/migration.go) and [provider options](https://github.com/pressly/goose/blob/v3.29.0/provider_options.go) support fresh provider-local registration. [Provider operations](https://github.com/pressly/goose/blob/v3.29.0/provider.go) and [initialization](https://github.com/pressly/goose/blob/v3.29.0/provider_run.go) establish ownership and version-table behavior. Native [argument validation](https://github.com/urfave/cli/blob/v3.14.0/command_run.go) precedes Action. These sources were read locally; the implementation tests exercise integration and artifact exclusion on the local build.
+
+Reconciled against latest `origin/main` at `0034a561ba5eade4ee6fb29436c76e4e34fa3a56` plus this branch. Required local checks passed; PostgreSQL integrations skipped without DSNs. Keep implementation in progress until independent review and publication, then record the real PR URL.
diff --git a/migrate/README.md b/migrate/README.md
index f76e5e0..f2aa56e 100644
--- a/migrate/README.md
+++ b/migrate/README.md
@@ -5,21 +5,64 @@
 It returns `*goose.Provider` directly: Goose owns execution, version tracking,
 status, and errors. There is no lifecycle dependency or background work.
 
-Create SQL migration files with Goose's
-[`create` command](https://pressly.github.io/goose/documentation/cli-commands/#create).
-For timestamp-to-sequential reconciliation before deployment, use its
-[`fix` command](https://pressly.github.io/goose/documentation/cli-commands/#fix)
-as described in [hybrid versioning](https://github.com/pressly/goose#hybrid-versioning).
-These commands edit source files before embedding; `fix` does not update database
-history. Never renumber migrations already applied to shared databases.
+Use the standalone `corestack-goose` development tool for SQL and Go creation
+and timestamp-to-sequential reconciliation. Its generated Go migrations work
+unchanged with this package's provider-local registration:
 
-**Goose's default Go template is not compatible unchanged with this package.**
-It registers migrations globally from `init`, while this package uses explicit
-provider-local registration. Until the compatible authoring CLI planned in
-[#9](https://gitea.auvem.com/corestack/go/issues/9) is available, Go migrations
-require the adaptation described below; do not treat stock `goose create ... go`
-output as ready to use. That follow-up must supply and document the supported
-creation/reconciliation workflow before it is complete.
+```sh
+go install go.auvem.com/corestack/cmd/corestack-goose@<release>
+mkdir -p migrations
+corestack-goose create --dir ./migrations create_events sql
+corestack-goose fix --dir ./migrations
+corestack-goose create --dir ./migrations populate_events go
+corestack-goose fix --dir ./migrations
+# Or use the version selected by your consumer module:
+go run go.auvem.com/corestack/cmd/corestack-goose create --dir ./migrations add_index sql
+```
+
+The directory must exist and contain regular migration files, with no symlink
+components in its path (on macOS use `/private/tmp`, rather than `/tmp`). Names
+are lowercase ASCII words separated by underscores. Creation uses Goose's stock
+SQL template and a custom transactional Go template. Go files use the fixed
+`<version>_<name>_migration.go` suffix, so names such as `test`, `create_test` and
+`windows` stay buildable on every platform. Edit the SQL or Go up/down function bodies;
+leave factories and the generated `register.go` aggregate intact.
+`GoMigrations()` supplies fresh registrations on each call. The aggregate exists
+even for SQL-only sets. Versions are unique across SQL and Go; Goose timestamps
+have second resolution, so fix a new migration before creating another in the
+same second, or wait for a distinct timestamp.
+
+`fix` preserves sequential IDs, allocates timestamps after the highest sequential
+ID with at least five-digit padding, and updates filenames and registration
+literals together. It preserves migration bodies. It rejects unsupported Go
+layouts, edited aggregates, duplicate versions/factories, unsafe paths, collisions,
+overflow and lexical/numeric order disagreement before writing. It does not adapt
+stock Goose Go output, whose global `init` registry is incompatible here.
+For concepts, see Goose's [hybrid versioning](https://github.com/pressly/goose#hybrid-versioning)
+and [SQL annotations](https://pressly.github.io/goose/documentation/annotations/).
+
+Before `fix`, commit or separately back up the **complete source set**, including
+untracked migrations and tracked edits. Run one authoring process with no concurrent
+editor changes. New destinations are exclusive; the tool stages output and fully
+publishes each destination before removing its old source. This is **not an atomic
+multi-file operation**. On a write/removal failure, stop and inspect the reported
+completed, partial/current and outstanding paths. Restore the complete source set
+and aggregate from that commit/backup before retrying; ordinary Git restore cannot
+recover untracked files or unsaved edits. Interruption can leave duplicates,
+aggregate drift or staging files; there is no automatic rollback or journal.
+
+Source reconciliation never rewrites database history. Use it before those IDs
+reach a shared database; preserve deployed IDs and add migrations afterward. The
+tool cannot determine deployment history.
+
+The standalone tool has no database setup. Production imports `migrate` and,
+optionally, `migrate/lifecycle`; neither imports authoring code. No build tags are
+needed. The generated consumer imports only Goose and the standard library.
+The artifact test builds both executables, decodes production dependency identities,
+and checks linker symbols for project authoring and Goose Create/CreateWithTemplate/
+Fix/SetSequential entrypoints. Goose's package remains a runtime dependency;
+these checks establish the tested build's boundary, not a universal ban on file I/O
+or proof about arbitrary downstream binaries. Build your application normally.
 
 Embed migrations in the application's binary and run them before serving traffic:
 
@@ -56,21 +99,62 @@ not defer it when sharing the pool with the application. Use `"."` for SQL files
 at the embedded root. Files in the selected directory are discovered directly,
 without recursively searching subdirectories.
 
-Preserve Goose's creator/fix filenames and ship the complete migration history.
+Preserve the tool's creator/fix filenames and ship the complete migration history.
 The pinned Goose SQL-only provider relies on lexical filename order matching
 numeric version order. Timestamp versions and gaps are supported; never derive
 versions from file counts. For operations, errors, and SQL annotations, use the
 [Provider API](https://pkg.go.dev/github.com/pressly/goose/v3#Provider) and
 [SQL migration docs](https://pressly.github.io/goose/documentation/annotations/).
 
-For Go functions, use Goose's
-[provider-local registration](https://pressly.github.io/goose/documentation/provider/#withgomigrations):
-pass fresh `goose.NewGoMigration` values as the trailing arguments to `migrate.New`.
-The creator's default Go template instead calls `goose.AddMigrationContext` from
-`init`; replace that registration with provider-local construction. Global
-registration is disabled to keep each provider's migration set isolated and avoid
-import side effects. If `fix` renames Go migrations, update their explicit
-registration versions to match. Versions must be unique across SQL and Go files.
+For generated Go functions, import the consumer's migration package and pass
+`migrations.GoMigrations()...` as the trailing arguments to `migrate.New`.
+Embed the complete directory with `//go:embed migrations` (and use a different
+variable name, such as `migrationFiles`, from the imported package). The directory
+must exist even for Go-only sets. Global registration is disabled; never share
+mutable registration objects across providers. See Goose's
+[provider-local registration](https://pressly.github.io/goose/documentation/provider/#withgomigrations).
+
+## Lifecycle startup and native commands
+
+`go.auvem.com/corestack/migrate/lifecycle` is a thin adapter; `migrate` itself has
+no lifecycle dependency. Alias it `migratelifecycle` to distinguish the core
+lifecycle package. Its resolver runs after the caller's database setup and should
+construct a fresh provider with fresh registrations:
+
+```go
+resolve := func(ctx context.Context) (*goose.Provider, error) {
+    return migrate.New(db, goose.DialectPostgres, migrationFiles,
+        "migrations", logger, migrations.GoMigrations()...)
+}
+startup, err := migratelifecycle.Module("migrations", migratelifecycle.Require, resolve)
+if err != nil {
+    return err
+}
+root := &urfavecli.Command{Name: "app", Commands: []*urfavecli.Command{
+    {Name: "serve", Action: cli.Serve(cfg, []lifecycle.Module{database, startup, server})},
+    migratelifecycle.Commands(cfg, []lifecycle.Module{database}, resolve),
+}}
+code, err := cli.Run(ctx, root, args) // args includes argv[0]; caller owns process exit.
+```
+
+Here `database.Setup` opens `db` and cleans up its partial acquisition on failure;
+`database.Teardown` closes it. Construct the tree and captured resource bindings
+fresh for independent invocations. Declaration does no work. Select `Apply` to run
+Up during setup, or `Require` to fail before later setup/services when migrations
+are pending. Require is a point-in-time check without a deployment lock. It and
+status may initialize Goose's version table; neither promises read-only DB access.
+The migration module never closes the provider or shared database.
+
+The native group supplies `migrate up`, `up-to <version>` (inclusive), `down`
+(one migration), `down-to <version>` and `status` (version/state/source table).
+Pass exactly the database modules, excluding the startup migration module and
+unrelated modules. Services are suppressed; the existing `lifecycle/cli.Action`
+owns signals, cancellation, errors and reverse cleanup. Help and invalid arguments
+never run setup. Target versions must be nonnegative decimal int64 values, with
+no extra arguments; malformed usage returns exit 2 through `cli.Run`. Zero follows
+Goose: `down-to 0` rolls everything back, while `up-to 0` is a runtime error.
+Resolver/Goose/cleanup and status Writer failures return runtime errors (exit 1).
+Supply the native command Writer and configured Goose logger for output.
 
 Postgres providers automatically use Goose's default session advisory locker.
 Concurrent startup calls from separate providers/processes serialize migration
diff --git a/migrate/lifecycle/lifecycle.go b/migrate/lifecycle/lifecycle.go
new file mode 100644
index 0000000..2fd2308
--- /dev/null
+++ b/migrate/lifecycle/lifecycle.go
@@ -0,0 +1,146 @@
+// Package lifecycle adapts Goose providers to startup policy and native commands.
+// Callers own database modules and supply fresh, late-bound providers.
+package lifecycle
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+	"text/tabwriter"
+
+	"github.com/pressly/goose/v3"
+	urfavecli "github.com/urfave/cli/v3"
+	"go.auvem.com/corestack/lifecycle"
+	"go.auvem.com/corestack/lifecycle/cli"
+)
+
+// Policy selects migration behavior during module setup.
+type Policy string
+
+const (
+	// Apply runs pending migrations before later modules start.
+	Apply Policy = "apply"
+	// Require fails setup when migrations are pending. This is a point-in-time
+	// check, not a deployment lock; Goose may initialize its version table.
+	Require Policy = "require"
+)
+
+// Module declares startup migration work without resolving provider yet.
+// Register it after the database module and before dependent modules. The
+// resolver must return fresh registrations and clean up any partial acquisition.
+// Teardown never closes the provider: the database module owns its database.
+func Module(name string, policy Policy, provider func(context.Context) (*goose.Provider, error)) (lifecycle.Module, error) {
+	if name == "" || (policy != Apply && policy != Require) || provider == nil {
+		return lifecycle.Module{}, errors.New("migrate: name, apply/require policy and provider resolver are required")
+	}
+	return lifecycle.Module{Name: name, Teardown: func(context.Context) error { return nil }, Setup: func(ctx context.Context) error {
+		p, err := resolve(ctx, provider)
+		if err != nil {
+			return err
+		}
+		if policy == Apply {
+			_, err = p.Up(ctx)
+		} else {
+			var pending bool
+			pending, err = p.HasPending(ctx)
+			if err == nil && pending {
+				return errors.New("migrate: pending migrations; run migrate up before startup")
+			}
+		}
+		if err != nil {
+			return fmt.Errorf("migrate: %s: %w", policy, err)
+		}
+		return nil
+	}}, nil
+}
+
+func resolve(ctx context.Context, provider func(context.Context) (*goose.Provider, error)) (*goose.Provider, error) {
+	if provider == nil {
+		return nil, errors.New("migrate: provider resolver is required")
+	}
+	p, err := provider(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("migrate: resolve provider: %w", err)
+	}
+	if p == nil {
+		return nil, errors.New("migrate: resolver returned nil provider")
+	}
+	return p, nil
+}
+
+// Commands returns a fresh native migrate group using exactly modules, with
+// services suppressed. Supply database modules only, excluding startup policy.
+// Resolvers run after setup. Help/usage starts nothing; Action owns signals and
+// reverse cleanup. Use fresh trees and bindings for independent invocations.
+// Status may initialize the version table; it does not run migration bodies.
+func Commands(config lifecycle.Config, modules []lifecycle.Module, provider func(context.Context) (*goose.Provider, error)) *urfavecli.Command {
+	group := &urfavecli.Command{Name: "migrate", Usage: "Manage database migrations"}
+	for _, name := range []string{"up", "up-to", "down", "down-to", "status"} {
+		targeted := strings.HasSuffix(name, "-to")
+		leaf := &urfavecli.Command{Name: name, ArgValidator: func(_ context.Context, cmd *urfavecli.Command) error {
+			if targeted {
+				if cmd.NArg() == 1 {
+					if _, err := version(cmd.Args().First()); err == nil {
+						return nil
+					}
+				}
+				return urfavecli.Exit("expected one nonnegative decimal int64 version", 2)
+			}
+			if cmd.NArg() != 0 {
+				return urfavecli.Exit("unexpected positional arguments", 2)
+			}
+			return nil
+		}}
+		if targeted {
+			leaf.ArgsUsage = "<version>"
+		}
+		leaf.Action = cli.Action(config, modules, func(ctx context.Context, cmd *urfavecli.Command) error {
+			p, err := resolve(ctx, provider)
+			if err != nil {
+				return err
+			}
+			target, _ := version(cmd.Args().First()) // ArgValidator checked targeted leaves before setup.
+			switch name {
+			case "up":
+				_, err = p.Up(ctx)
+			case "up-to":
+				_, err = p.UpTo(ctx, target)
+			case "down":
+				_, err = p.Down(ctx)
+			case "down-to":
+				_, err = p.DownTo(ctx, target)
+			case "status":
+				var statuses []*goose.MigrationStatus
+				statuses, err = p.Status(ctx)
+				if err == nil {
+					writer := tabwriter.NewWriter(cmd.Writer, 0, 4, 2, ' ', 0)
+					if _, err = fmt.Fprintln(writer, "VERSION\tSTATE\tSOURCE"); err == nil {
+						for _, status := range statuses {
+							if _, err = fmt.Fprintf(writer, "%d\t%s\t%s\n", status.Source.Version, status.State, status.Source.Path); err != nil {
+								break
+							}
+						}
+					}
+					if err == nil {
+						err = writer.Flush()
+					}
+				}
+			}
+			if err != nil {
+				return fmt.Errorf("migrate %s: %w", name, err)
+			}
+			return nil
+		})
+		group.Commands = append(group.Commands, leaf)
+	}
+	return group
+}
+
+func version(raw string) (int64, error) {
+	if raw == "" || strings.IndexFunc(raw, func(r rune) bool { return r < '0' || r > '9' }) >= 0 {
+		return 0, errors.New("invalid version")
+	}
+	return strconv.ParseInt(raw, 10, 64)
+}
diff --git a/migrate/lifecycle/lifecycle_test.go b/migrate/lifecycle/lifecycle_test.go
new file mode 100644
index 0000000..111fa7c
--- /dev/null
+++ b/migrate/lifecycle/lifecycle_test.go
@@ -0,0 +1,289 @@
+package lifecycle_test
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"embed"
+	"errors"
+	"io"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"syscall"
+	"testing"
+	"time"
+
+	"github.com/pressly/goose/v3"
+	urfavecli "github.com/urfave/cli/v3"
+	"go.auvem.com/corestack/lifecycle"
+	"go.auvem.com/corestack/lifecycle/cli"
+	"go.auvem.com/corestack/migrate"
+	adapter "go.auvem.com/corestack/migrate/lifecycle"
+	_ "modernc.org/sqlite"
+)
+
+//go:embed testdata
+var files embed.FS
+
+func config() lifecycle.Config {
+	return lifecycle.Config{Logger: slog.New(slog.NewTextHandler(io.Discard, nil))}
+}
+
+func database(t *testing.T) *sql.DB {
+	t.Helper()
+	db, err := sql.Open("sqlite", filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Error(err)
+		}
+	})
+	return db
+}
+func provider(t *testing.T, db *sql.DB) *goose.Provider {
+	t.Helper()
+	p, err := migrate.New(db, goose.DialectSQLite3, files, "testdata/migrations", config().Logger)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return p
+}
+func TestStartupPolicies(t *testing.T) {
+	for _, policy := range []adapter.Policy{adapter.Apply, adapter.Require} {
+		for _, applied := range []bool{false, true} {
+			t.Run(string(policy)+"/applied="+stringBool(applied), func(t *testing.T) {
+				db := database(t)
+				p := provider(t, db)
+				if applied {
+					if _, err := p.Up(t.Context()); err != nil {
+						t.Fatal(err)
+					}
+				}
+				var calls []string
+				var setupCtx context.Context
+				dbModule := lifecycle.Module{Name: "db", Setup: func(ctx context.Context) error { setupCtx = ctx; calls = append(calls, "db"); return nil }, Teardown: func(ctx context.Context) error {
+					if ctx.Err() != nil {
+						t.Error(ctx.Err())
+					}
+					calls = append(calls, "close")
+					return nil
+				}}
+				module, err := adapter.Module("migrations", policy, func(ctx context.Context) (*goose.Provider, error) {
+					if ctx != setupCtx {
+						t.Error("setup context changed")
+					}
+					calls = append(calls, "resolve")
+					return provider(t, db), nil
+				})
+				if err != nil {
+					t.Fatal(err)
+				}
+				if len(calls) != 0 || module.Run != nil {
+					t.Fatal("declaration started work")
+				}
+				app, err := lifecycle.New(config())
+				if err != nil {
+					t.Fatal(err)
+				}
+				later := lifecycle.Module{Name: "later", Setup: func(context.Context) error { calls = append(calls, "later"); return nil }, Run: func(context.Context) error { calls = append(calls, "service"); return nil }, Teardown: func(context.Context) error { calls = append(calls, "later-close"); return nil }}
+				for _, m := range []lifecycle.Module{dbModule, module, later} {
+					if err := app.Register(m); err != nil {
+						t.Fatal(err)
+					}
+				}
+				err = app.Run(t.Context())
+				if policy == adapter.Require && !applied {
+					if err == nil || !strings.Contains(err.Error(), "pending") {
+						t.Fatalf("pending Require: %v", err)
+					}
+					if !reflect.DeepEqual(calls, []string{"db", "resolve", "close"}) {
+						t.Fatal(calls)
+					}
+				} else {
+					if err != nil {
+						t.Fatal(err)
+					}
+					if !reflect.DeepEqual(calls, []string{"db", "resolve", "later", "service", "later-close", "close"}) {
+						t.Fatal(calls)
+					}
+					pending, err := p.HasPending(t.Context())
+					if err != nil || pending {
+						t.Fatalf("pending=%v err=%v", pending, err)
+					}
+				}
+				if err := db.PingContext(t.Context()); err != nil {
+					t.Fatalf("adapter closed caller DB: %v", err)
+				}
+			})
+		}
+	}
+}
+func stringBool(v bool) string {
+	if v {
+		return "true"
+	}
+	return "false"
+}
+
+func TestModuleValidationAndErrors(t *testing.T) {
+	sentinel := errors.New("resolve failure")
+	for _, tc := range []struct {
+		name     string
+		policy   adapter.Policy
+		resolver func(context.Context) (*goose.Provider, error)
+	}{{"", adapter.Apply, func(context.Context) (*goose.Provider, error) { return nil, nil }}, {"m", "", func(context.Context) (*goose.Provider, error) { return nil, nil }}, {"m", "invalid", func(context.Context) (*goose.Provider, error) { return nil, nil }}, {"m", adapter.Apply, nil}} {
+		if _, err := adapter.Module(tc.name, tc.policy, tc.resolver); err == nil {
+			t.Fatal("accepted invalid module")
+		}
+	}
+	for _, policy := range []adapter.Policy{adapter.Apply, adapter.Require} {
+		for _, resolver := range []func(context.Context) (*goose.Provider, error){func(context.Context) (*goose.Provider, error) { return nil, nil }, func(context.Context) (*goose.Provider, error) { return nil, sentinel }, func(context.Context) (*goose.Provider, error) {
+			db := database(t)
+			p := provider(t, db)
+			if err := db.Close(); err != nil {
+				t.Fatal(err)
+			}
+			return p, nil
+		}} {
+			m, err := adapter.Module("m", policy, resolver)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if err := m.Setup(t.Context()); err == nil {
+				t.Fatal("accepted resolver/DB failure")
+			}
+		}
+	}
+	m, err := adapter.Module("m", adapter.Apply, func(context.Context) (*goose.Provider, error) { return nil, sentinel })
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := m.Setup(t.Context()); !errors.Is(err, sentinel) {
+		t.Fatal(err)
+	}
+}
+
+func run(t *testing.T, args []string, modules []lifecycle.Module, resolver func(context.Context) (*goose.Provider, error), writer io.Writer) (int, error) {
+	t.Helper()
+	root := &urfavecli.Command{Name: "app", Writer: writer, ErrWriter: io.Discard, Commands: []*urfavecli.Command{adapter.Commands(config(), modules, resolver)}}
+	return cli.Run(t.Context(), root, append([]string{"app", "migrate"}, args...))
+}
+func TestCommandsSQLite(t *testing.T) {
+	db := database(t)
+	var out bytes.Buffer
+	var calls []string
+	module := lifecycle.Module{Name: "db", Setup: func(context.Context) error { calls = append(calls, "setup"); return nil }, Run: func(context.Context) error { t.Error("one-off ran service"); return nil }, Teardown: func(context.Context) error { calls = append(calls, "cleanup"); return nil }}
+	resolver := func(context.Context) (*goose.Provider, error) {
+		calls = append(calls, "resolve")
+		return provider(t, db), nil
+	}
+	for _, step := range []struct {
+		args    []string
+		version int64
+	}{{[]string{"up-to", "1"}, 1}, {[]string{"up"}, 2}, {[]string{"status"}, 2}, {[]string{"down"}, 1}, {[]string{"up-to", "2"}, 2}, {[]string{"down-to", "0"}, 0}} {
+		calls = nil
+		code, err := run(t, step.args, []lifecycle.Module{module}, resolver, &out)
+		if code != 0 || err != nil {
+			t.Fatalf("%v code=%d err=%v", step.args, code, err)
+		}
+		version, err := provider(t, db).GetDBVersion(t.Context())
+		if err != nil || version != step.version {
+			t.Fatalf("%v version=%d err=%v", step.args, version, err)
+		}
+		if !reflect.DeepEqual(calls, []string{"setup", "resolve", "cleanup"}) {
+			t.Fatal(calls)
+		}
+	}
+	// Zero is valid syntax; Goose UpTo rejects it after setup, unlike DownTo(0).
+	code, err := run(t, []string{"up-to", "0"}, []lifecycle.Module{module}, resolver, &out)
+	if code != 1 || err == nil || !strings.Contains(err.Error(), "greater than 0") {
+		t.Fatalf("zero UpTo: code=%d err=%v", code, err)
+	}
+	if !strings.Contains(out.String(), "VERSION") || !strings.Contains(out.String(), "applied") || !strings.Contains(out.String(), "00002_second.sql") {
+		t.Fatal(out.String())
+	}
+}
+func TestHelpAndUsageWithoutSetup(t *testing.T) {
+	for _, leaf := range []string{"up", "up-to", "down", "down-to", "status"} {
+		code, err := run(t, []string{leaf, "--help"}, nil, nil, io.Discard)
+		if code != 0 || err != nil {
+			t.Fatalf("%s help: %d %v", leaf, code, err)
+		}
+	}
+
+	module := lifecycle.Module{Name: "db", Setup: func(context.Context) error { t.Error("usage opened DB"); return nil }, Teardown: func(context.Context) error { return nil }}
+	for _, tc := range []struct {
+		args []string
+		code int
+	}{{nil, 0}, {[]string{"--help"}, 0}, {[]string{"help", "up-to"}, 0}, {[]string{"missing"}, 2}, {[]string{"up", "extra"}, 2}, {[]string{"down", "extra"}, 2}, {[]string{"status", "extra"}, 2}, {[]string{"up-to"}, 2}, {[]string{"down-to"}, 2}, {[]string{"up-to", "1", "2"}, 2}, {[]string{"down-to", "--", "-1"}, 2}, {[]string{"up-to", "+1"}, 2}, {[]string{"up-to", "9223372036854775808"}, 2}, {[]string{"down-to", "1x"}, 2}, {[]string{"up-to", "１"}, 2}} {
+		code, err := run(t, tc.args, []lifecycle.Module{module}, nil, io.Discard)
+		if code != tc.code || (code == 0 && err != nil) || (code != 0 && err == nil) {
+			t.Fatalf("args=%v code=%d err=%v", tc.args, code, err)
+		}
+	}
+}
+
+type brokenWriter struct{ err error }
+
+func (w brokenWriter) Write([]byte) (int, error) { return 0, w.err }
+func TestCommandFailureCleanup(t *testing.T) {
+	db := database(t)
+	writeErr := errors.New("write failed")
+	resolveErr := errors.New("resolve failed")
+	cleanupErr := errors.New("cleanup failed")
+	for _, tc := range []struct {
+		name     string
+		resolver func(context.Context) (*goose.Provider, error)
+		writer   io.Writer
+		want     error
+	}{{"writer", func(context.Context) (*goose.Provider, error) { return provider(t, db), nil }, brokenWriter{writeErr}, writeErr}, {"resolver", func(context.Context) (*goose.Provider, error) { return nil, resolveErr }, io.Discard, resolveErr}, {"nil", nil, io.Discard, nil}, {"nil-provider", func(context.Context) (*goose.Provider, error) { return nil, nil }, io.Discard, nil}} {
+		t.Run(tc.name, func(t *testing.T) {
+			cleaned := false
+			module := lifecycle.Module{Name: "db", Setup: func(context.Context) error { return nil }, Teardown: func(context.Context) error { cleaned = true; return cleanupErr }}
+			code, err := run(t, []string{"status"}, []lifecycle.Module{module}, tc.resolver, tc.writer)
+			if code != 1 || err == nil || !cleaned || !errors.Is(err, cleanupErr) || (tc.want != nil && !errors.Is(err, tc.want)) {
+				t.Fatalf("code=%d err=%v cleaned=%v", code, err, cleaned)
+			}
+		})
+	}
+}
+func TestCommandSignalContext(t *testing.T) {
+	signals := make(chan os.Signal, 2)
+	cfg := config()
+	cfg.Signals = signals
+	entered := make(chan struct{})
+	done := make(chan error, 1)
+	cleaned := false
+	module := lifecycle.Module{Name: "db", Setup: func(context.Context) error { return nil }, Teardown: func(ctx context.Context) error {
+		if ctx.Err() != nil {
+			t.Error(ctx.Err())
+		}
+		cleaned = true
+		return nil
+	}}
+	root := &urfavecli.Command{Name: "app", Writer: io.Discard, ErrWriter: io.Discard, Commands: []*urfavecli.Command{adapter.Commands(cfg, []lifecycle.Module{module}, func(ctx context.Context) (*goose.Provider, error) {
+		close(entered)
+		<-ctx.Done()
+		return nil, ctx.Err()
+	})}}
+	go func() { _, err := cli.Run(t.Context(), root, []string{"app", "migrate", "up"}); done <- err }()
+	select {
+	case <-entered:
+	case <-time.After(5 * time.Second):
+		t.Fatal("resolver did not start")
+	}
+	signals <- syscall.SIGTERM
+	select {
+	case err := <-done:
+		if err != nil || !cleaned {
+			t.Fatalf("err=%v cleaned=%v", err, cleaned)
+		}
+	case <-time.After(5 * time.Second):
+		t.Fatal("signal did not cancel resolver")
+	}
+}
diff --git a/migrate/lifecycle/testdata/migrations/00001_first.sql b/migrate/lifecycle/testdata/migrations/00001_first.sql
new file mode 100644
index 0000000..a05cde0
--- /dev/null
+++ b/migrate/lifecycle/testdata/migrations/00001_first.sql
@@ -0,0 +1,4 @@
+-- +goose Up
+CREATE TABLE events (id INTEGER PRIMARY KEY);
+-- +goose Down
+DROP TABLE events;
diff --git a/migrate/lifecycle/testdata/migrations/00002_second.sql b/migrate/lifecycle/testdata/migrations/00002_second.sql
new file mode 100644
index 0000000..143fcdb
--- /dev/null
+++ b/migrate/lifecycle/testdata/migrations/00002_second.sql
@@ -0,0 +1,4 @@
+-- +goose Up
+INSERT INTO events VALUES (2);
+-- +goose Down
+DELETE FROM events WHERE id = 2;
diff --git a/migrate/migrate.go b/migrate/migrate.go
index a0778c2..1270417 100644
--- a/migrate/migrate.go
+++ b/migrate/migrate.go
@@ -23,10 +23,13 @@ import (
 // across providers/processes. PostgreSQL connections must preserve session
 // affinity (transaction-pooling proxies cannot safely hold session locks).
 //
-// Use the returned Provider's Up, UpTo, DownTo, Status, GetDBVersion, GetVersions,
-// and HasPending methods directly. Create migration files with Goose's create
-// command; lexical filename order must match numeric version order. Go migrations
-// are registered per provider; global Go registration is ignored.
+// Use the returned Provider's Up, UpTo, Down, DownTo, Status, GetDBVersion, GetVersions,
+// and HasPending methods directly. Create and reconcile sources with the standalone
+// corestack-goose tool (go run go.auvem.com/corestack/cmd/corestack-goose).
+// Pass migrations.GoMigrations()... from its generated package; stock Goose Go
+// output uses an incompatible global init registry. Lexical filename order must
+// match numeric version order. Each provider needs fresh Go registrations;
+// global Go registration is ignored.
 func New(db *sql.DB, dialect goose.Dialect, files embed.FS, dir string, logger *slog.Logger, migrations ...*goose.Migration) (*goose.Provider, error) {
 	for i, migration := range migrations {
 		if migration == nil {