diff --git a/pkg/io/common.go b/pkg/io/common.go
index 4e4f9e3..1a0eb69 100644
--- a/pkg/io/common.go
+++ b/pkg/io/common.go
@@ -32,7 +32,7 @@ func direction(d ir.Direction) string {
 func printProtocolName(protocol netp.Protocol) string {
 	switch p := protocol.(type) {
 	case netp.ICMP:
-		return "ICMP"
+		return string(netp.ProtocolStringICMP)
 	case netp.TCPUDP:
 		return strings.ToUpper(string(p.ProtocolString()))
 	case netp.AnyProtocol:
diff --git a/pkg/io/commonACL.go b/pkg/io/commonACL.go
index 4adfe77..865e325 100644
--- a/pkg/io/commonACL.go
+++ b/pkg/io/commonACL.go
@@ -30,7 +30,7 @@ func WriteACL(collection *ir.ACLCollection, vpc string) ([][]string, error) {
 	return res, nil
 }
 
-func ACLHeader() [][]string {
+func makeACLHeader() [][]string {
 	return [][]string{{
 		"Acl",
 		"Subnet",
diff --git a/pkg/io/commonSG.go b/pkg/io/commonSG.go
index b286822..3a05a5e 100644
--- a/pkg/io/commonSG.go
+++ b/pkg/io/commonSG.go
@@ -33,7 +33,7 @@ func WriteSG(collection *ir.SGCollection, vpc string) ([][]string, error) {
 	return res, nil
 }
 
-func SGHeader() [][]string {
+func makeSGHeader() [][]string {
 	return [][]string{{
 		"SG",
 		"Direction",
diff --git a/pkg/io/csvWriter.go b/pkg/io/csvWriter.go
index cb21f24..7a5edea 100644
--- a/pkg/io/csvWriter.go
+++ b/pkg/io/csvWriter.go
@@ -27,7 +27,7 @@ func (w *CSVWriter) WriteSG(collection *ir.SGCollection, vpc string, _ bool) err
 	if err != nil {
 		return err
 	}
-	return w.w.WriteAll(slices.Concat(SGHeader(), sgTable))
+	return w.w.WriteAll(slices.Concat(makeSGHeader(), sgTable))
 }
 
 func (w *CSVWriter) WriteACL(collection *ir.ACLCollection, vpc string, _ bool) error {
@@ -35,5 +35,5 @@ func (w *CSVWriter) WriteACL(collection *ir.ACLCollection, vpc string, _ bool) e
 	if err != nil {
 		return err
 	}
-	return w.w.WriteAll(slices.Concat(ACLHeader(), aclTable))
+	return w.w.WriteAll(slices.Concat(makeACLHeader(), aclTable))
 }
diff --git a/pkg/io/mdWriter.go b/pkg/io/mdWriter.go
index 533f12f..461e259 100644
--- a/pkg/io/mdWriter.go
+++ b/pkg/io/mdWriter.go
@@ -15,9 +15,6 @@ import (
 )
 
 const (
-	sgColsNum  = 7
-	aclColsNum = 10
-
 	leftAlign = " :--- "
 	separator = " | "
 )
@@ -36,7 +33,8 @@ func (w *MDWriter) WriteSG(collection *ir.SGCollection, vpc string, _ bool) erro
 	if err != nil {
 		return err
 	}
-	return w.writeAll(slices.Concat(SGHeader(), addAligns(sgColsNum), sgTable))
+	sgHeader := makeSGHeader()
+	return w.writeAll(slices.Concat(sgHeader, addAligns(len(sgHeader[0])), sgTable))
 }
 
 func (w *MDWriter) WriteACL(collection *ir.ACLCollection, vpc string, _ bool) error {
@@ -44,23 +42,18 @@ func (w *MDWriter) WriteACL(collection *ir.ACLCollection, vpc string, _ bool) er
 	if err != nil {
 		return err
 	}
-	return w.writeAll(slices.Concat(ACLHeader(), addAligns(aclColsNum), aclTable))
+	aclHeader := makeACLHeader()
+	return w.writeAll(slices.Concat(aclHeader, addAligns(len(aclHeader[0])), aclTable))
 }
 
 func (w *MDWriter) writeAll(rows [][]string) error {
 	for _, row := range rows {
-		if _, err := w.w.WriteString(separator); err != nil {
-			return err
-		}
-		if _, err := w.w.WriteString(strings.Join(row, separator)); err != nil {
-			return err
-		}
-		if _, err := w.w.WriteString(separator + "\n"); err != nil {
+		finalString := separator + strings.Join(row, separator) + separator + "\n"
+		if _, err := w.w.WriteString(finalString); err != nil {
 			return err
 		}
 	}
-	w.w.Flush()
-	return nil
+	return w.w.Flush()
 }
 
 func addAligns(n int) [][]string {
diff --git a/pkg/io/tfio/acl.go b/pkg/io/tfio/acl.go
index dffe4c5..1fc79e8 100644
--- a/pkg/io/tfio/acl.go
+++ b/pkg/io/tfio/acl.go
@@ -69,10 +69,10 @@ func singleACL(t *ir.ACL, comment string) (tf.Block, error) {
 	}
 	return tf.Block{
 		Comment: comment,
-		Name:    "resource",
+		Name:    resourceConst,
 		Labels:  []string{quote("ibm_is_network_acl"), quote(aclName)},
 		Arguments: []tf.Argument{
-			{Name: "name", Value: quote(aclName)},
+			{Name: nameConst, Value: quote(aclName)},
 			{Name: "resource_group", Value: "local.acl_synth_resource_group_id"},
 			{Name: "vpc", Value: fmt.Sprintf("local.acl_synth_%s_id", ir.VpcFromScopedResource(t.Subnet))},
 		},
@@ -85,7 +85,7 @@ func aclRule(rule *ir.ACLRule, name string) (tf.Block, error) {
 		return tf.Block{}, err
 	}
 	arguments := []tf.Argument{
-		{Name: "name", Value: quote(name)}, //nolint:revive  // obvious false positive
+		{Name: nameConst, Value: quote(name)},
 		{Name: "action", Value: quote(action(rule.Action))},
 		{Name: "direction", Value: quote(direction(rule.Direction))},
 		{Name: "source", Value: quote(rule.Source.String())},
diff --git a/pkg/io/tfio/common.go b/pkg/io/tfio/common.go
index 96611c6..2cfe005 100644
--- a/pkg/io/tfio/common.go
+++ b/pkg/io/tfio/common.go
@@ -20,6 +20,11 @@ import (
 	"github.com/np-guard/vpc-network-config-synthesis/pkg/ir"
 )
 
+const (
+	resourceConst = "resource"
+	nameConst     = "name"
+)
+
 // Writer implements ir.Writer
 type Writer struct {
 	w *bufio.Writer
diff --git a/pkg/io/tfio/sg.go b/pkg/io/tfio/sg.go
index c008ef5..e269b68 100644
--- a/pkg/io/tfio/sg.go
+++ b/pkg/io/tfio/sg.go
@@ -71,7 +71,7 @@ func sg(sG *ir.SG, vpcName string) (tf.Block, error) {
 		Labels:  []string{quote("ibm_is_security_group"), quote(sgName)},
 		Comment: comment,
 		Arguments: []tf.Argument{
-			{Name: "name", Value: quote("sg-" + sgName)},
+			{Name: nameConst, Value: quote("sg-" + sgName)},
 			{Name: "resource_group", Value: "local.sg_synth_resource_group_id"},
 			{Name: "vpc", Value: fmt.Sprintf("local.sg_synth_%s_id", vpcName)},
 		},
@@ -96,7 +96,7 @@ func sgRule(rule *ir.SGRule, sgName ir.SGName, i int) (tf.Block, error) {
 	}
 
 	return tf.Block{
-		Name:    "resource", //nolint:revive  // obvious false positive
+		Name:    resourceConst,
 		Labels:  []string{quote("ibm_is_security_group_rule"), ir.ChangeScoping(quote(ruleName))},
 		Comment: comment,
 		Arguments: []tf.Argument{