diff --git a/.gitignore b/.gitignore
index e50117c..6a59e5d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,5 @@ outputs/
 # Vendored dependencies. Track only the maintained SGLang fork/snapshot.
 third_party/*
 !third_party/sglang/
+!third_party/agentic-kvcache/
 *.log
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..416eb88
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/agentic-kvcache"]
+	path = third_party/agentic-kvcache
+	url = git@ipads.se.sjtu.edu.cn:scaleaisys/projects/agentic-kvcache.git
diff --git a/third_party/agentic-kvcache b/third_party/agentic-kvcache
new file mode 160000
index 0000000..44796a1
--- /dev/null
+++ b/third_party/agentic-kvcache
@@ -0,0 +1 @@
+Subproject commit 44796a1139cb21ab8917d69ae60d5a7af5025061