[router][grpc] Add dependencies in Cargo.toml to support chat template rendering (#11342)

Author: CatherineSue

sgl-router/Cargo.toml

@@ -57,7 +57,7 @@ tokio-stream = { version = "0.1", features = ["sync"] }
 anyhow = "1.0"
 tokenizers = { version = "0.22.0" }
 tiktoken-rs = { version = "0.7.0" }
-minijinja = { version = "2.0", features = ["unstable_machinery"] }
+minijinja = { version = "2.0", features = ["unstable_machinery", "json", "builtins"] }
 rustls = { version = "0.23", default-features = false, features = ["ring", "std"] }
 hf-hub = { version = "0.4.3", features = ["tokio"] }
 rmcp = { version = "0.6.3", features = ["client", "server",

sgl-router/src/tool_parser/parsers/json_parser.rs

@@ -174,11 +174,6 @@ impl JsonParser {
 
         Ok(tools)
     }
-
-    /// Check if text contains tool calls
-    fn has_tool_call(&self, text: &str) -> bool {
-        text.contains('[') || text.contains('{')
-    }
 }
 
 impl Default for JsonParser {
@@ -216,7 +211,7 @@ impl ToolParser for JsonParser {
         let current_text = &self.buffer.clone();
 
         // Check if current_text has tool_call
-        let has_tool_start = self.has_tool_call(current_text)
+        let has_tool_start = self.has_tool_markers(current_text)
             || (self.current_tool_id >= 0 && current_text.starts_with(self.tool_call_separator));
 
         if !has_tool_start {
@@ -263,7 +258,7 @@ impl ToolParser for JsonParser {
 
     fn has_tool_markers(&self, text: &str) -> bool {
         let trimmed = text.trim();
-        (trimmed.starts_with('[') || trimmed.starts_with('{')) && trimmed.contains(r#""name""#)
+        trimmed.starts_with('[') || trimmed.starts_with('{')
     }
 
     fn get_unstreamed_tool_args(&self) -> Option<Vec<ToolCallItem>> {

sgl-router/src/tool_parser/parsers/llama_parser.rs

@@ -121,11 +121,6 @@ impl LlamaParser {
 
         Ok(all_tools)
     }
-
-    /// Check if text has tool call
-    fn has_tool_call(&self, text: &str) -> bool {
-        text.contains("<|python_tag|>") || text.contains('{')
-    }
 }
 
 impl Default for LlamaParser {
@@ -184,7 +179,7 @@ impl ToolParser for LlamaParser {
         let current_text = &self.buffer.clone();
 
         // Check if current_text has tool_call
-        let has_tool_start = self.has_tool_call(current_text)
+        let has_tool_start = self.has_tool_markers(current_text)
             || (self.current_tool_id >= 0 && current_text.starts_with(self.tool_call_separator));
 
         if !has_tool_start {
@@ -230,8 +225,7 @@ impl ToolParser for LlamaParser {
 
     fn has_tool_markers(&self, text: &str) -> bool {
         // Llama format if contains python_tag or starts with JSON object
-        text.contains("<|python_tag|>")
-            || (text.trim_start().starts_with('{') && text.contains(r#""name""#))
+        text.contains("<|python_tag|>") || text.trim_start().starts_with('{')
     }
 
     fn get_unstreamed_tool_args(&self) -> Option<Vec<crate::tool_parser::types::ToolCallItem>> {

sgl-router/tests/tool_parser_llama.rs

@@ -119,7 +119,6 @@ async fn test_llama_format_detection() {
     assert!(parser.has_tool_markers(r#"<|python_tag|>{"name": "test"}"#));
     assert!(parser.has_tool_markers(r#"{"name": "test", "parameters": {}}"#));
     assert!(!parser.has_tool_markers("plain text"));
-    assert!(!parser.has_tool_markers(r#"{"key": "value"}"#)); // No name field
 }
 
 #[tokio::test]