diff --git a/dashboard/builders.go b/dashboard/builders.go
index c186817e..260219af 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -1758,7 +1758,8 @@ func init() {
 		HostType: "host-linux-buster",
 		Notes:    "builder with GOEXPERIMENT=unified, see golang.org/issue/46786",
 		tryBot: func(repo, branch, goBranch string) bool {
-			return (repo == "go" || repo == "tools") && (goBranch == "master" || goBranch == "dev.typeparams")
+			// TODO(go.dev/issue/52150): Restore testing against tools repo.
+			return (repo == "go" /*|| repo == "tools"*/) && (goBranch == "master" || goBranch == "dev.typeparams")
 		},
 		buildsRepo: func(repo, branch, goBranch string) bool {
 			return (repo == "go" || repo == "tools") && (goBranch == "master" || goBranch == "dev.typeparams")
diff --git a/dashboard/builders_test.go b/dashboard/builders_test.go
index aaeb8c99..ca3626c4 100644
--- a/dashboard/builders_test.go
+++ b/dashboard/builders_test.go
@@ -671,10 +671,10 @@ func TestBuilderConfig(t *testing.T) {
 		{b("linux-amd64-staticlockranking", "net"), none},
 
 		{b("linux-amd64-unified", "go"), both},
-		{b("linux-amd64-unified", "tools"), both},
+		{b("linux-amd64-unified", "tools"), onlyPost},
 		{b("linux-amd64-unified", "net"), none},
 		{b("linux-amd64-unified@dev.typeparams", "go"), both},
-		{b("linux-amd64-unified@dev.typeparams", "tools"), both},
+		{b("linux-amd64-unified@dev.typeparams", "tools"), onlyPost},
 		{b("linux-amd64-unified@dev.typeparams", "net"), none},
 
 		{b("linux-amd64-nounified", "go"), both},