diff --git a/litellm-rust/crates/llms/src/anthropic/messages/transformation.rs b/litellm-rust/crates/llms/src/anthropic/messages/transformation.rs
index aa926662b7a..72df83e3bf4 100644
--- a/litellm-rust/crates/llms/src/anthropic/messages/transformation.rs
+++ b/litellm-rust/crates/llms/src/anthropic/messages/transformation.rs
@@ -171,6 +171,7 @@ fn feature_betas(request: &MessagesRequest) -> BetaSet {
             .then_some(AnthropicBeta::PerTurnControl20260701),
         has_advisor_tool(tools).then_some(AnthropicBeta::AdvisorTool20260301),
         is_tool_search_used(tools).then_some(AnthropicBeta::AdvancedToolUse20251120),
+        carries_safeguards(params).then_some(AnthropicBeta::DangerousToolUse20260903),
     ]
     .into_iter()
     .flatten()
@@ -206,6 +207,13 @@ fn uses_structured_output(params: &MessagesOptionalParams) -> bool {
             .is_some_and(|config| config.format.is_some())
 }
 
+fn carries_safeguards(params: &MessagesOptionalParams) -> bool {
+    params
+        .extra
+        .get("safeguards")
+        .is_some_and(|value| !value.is_null())
+}
+
 fn messages_carry_output_config(messages: &[Message]) -> bool {
     messages
         .iter()
@@ -1025,6 +1033,11 @@ mod tests {
         json!({"messages": [{"role": "user", "content": "hi", "output_config": null}]}),
         &["per-turn-control-2026-07-01"]
     )]
+    #[case::safeguards(
+        json!({"safeguards": [{"type": "dangerous_tool_use", "classifier_context": {"v": 1, "permission_mode": "auto"}}]}),
+        &["dangerous-tool-use-2026-09-03"]
+    )]
+    #[case::null_safeguards(json!({"safeguards": null}), &[])]
     fn feature_betas_follow_the_request(#[case] fields: Value, #[case] expected: &[&str]) {
         assert_eq!(feature_betas(&request(fields)), betas(expected));
     }
@@ -1067,6 +1080,11 @@ mod tests {
         json!({"messages": [{"role": "user", "content": "hi", "output_config": {"effort": "low"}}]}),
         &[("anthropic-beta", "claude-code-20250219,context-management-2025-06-27,effort-2025-11-24,interleaved-thinking-2025-05-14,per-turn-control-2026-07-01")],
     )]
+    #[case::safeguards_join_the_client_betas_without_the_dangerous_tool_use_beta(
+        &[("anthropic-beta", "claude-code-20250219,interleaved-thinking-2025-05-14")],
+        json!({"safeguards": [{"type": "dangerous_tool_use"}]}),
+        &[("anthropic-beta", "claude-code-20250219,dangerous-tool-use-2026-09-03,interleaved-thinking-2025-05-14")],
+    )]
     fn request_headers_merge_the_feature_betas(
         #[case] input: &[(&str, &str)],
         #[case] fields: Value,
diff --git a/litellm-rust/crates/llms/src/vertex_ai/messages/transformation.rs b/litellm-rust/crates/llms/src/vertex_ai/messages/transformation.rs
index e6a3661a81f..0e665304661 100644
--- a/litellm-rust/crates/llms/src/vertex_ai/messages/transformation.rs
+++ b/litellm-rust/crates/llms/src/vertex_ai/messages/transformation.rs
@@ -213,23 +213,14 @@ fn has_web_search_tool(tools: Option<&[Recognized<MessagesTool>]>) -> bool {
 }
 
 /// Python's Vertex `validate_anthropic_messages_environment` beta set: the shared feature
-/// betas under Vertex's policy, plus the web search and safeguards betas Vertex needs spelled
-/// out.
+/// betas under Vertex's policy, plus the web search beta Vertex needs spelled out.
 fn vertex_feature_betas(request: &MessagesRequest) -> BetaSet {
     let params = &request.params;
     provider_feature_betas(request, BetaProvider::VertexAi).union(
-        [
-            has_web_search_tool(params.tools.as_deref())
-                .then_some(AnthropicBeta::WebSearch20250305),
-            params
-                .extra
-                .get("safeguards")
-                .is_some_and(|value| !value.is_null())
-                .then_some(AnthropicBeta::DangerousToolUse20260903),
-        ]
-        .into_iter()
-        .flatten()
-        .collect(),
+        has_web_search_tool(params.tools.as_deref())
+            .then_some(AnthropicBeta::WebSearch20250305)
+            .into_iter()
+            .collect(),
     )
 }