diff --git a/docs/reference/xlang-api/c-api.md b/docs/reference/xlang-api/c-api.md
index 21a35d4e..dea5cb25 100644
--- a/docs/reference/xlang-api/c-api.md
+++ b/docs/reference/xlang-api/c-api.md
@@ -105,7 +105,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```c
 #include <kcl_lib.h>
 
 int validate(const char* code_str, const char* data_str)
diff --git a/docs/reference/xlang-api/cpp-api.md b/docs/reference/xlang-api/cpp-api.md
index 6173f76c..4673fb98 100644
--- a/docs/reference/xlang-api/cpp-api.md
+++ b/docs/reference/xlang-api/cpp-api.md
@@ -80,7 +80,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```cpp
 #include "kcl_lib.hpp"
 #include <iostream>
 
@@ -113,3 +113,136 @@ int main()
 
 </p>
 </details>
+
+### override_file
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```c++
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C++ Code
+
+```cpp
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::OverrideFileArgs {
+        .file = rust::String("main.k"),
+        .specs = rust::Vec({ rust::String("b.a=2") }),
+    };
+    auto result = kcl_lib::override_file(args);
+    std::cout << result.result << std::endl;
+    std::cout << result.parse_errors.size() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+### update_dependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    std::cout << result.external_pkgs[0].pkg_name.c_str() << std::endl;
+    std::cout << result.external_pkgs[1].pkg_name.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+Call `exec_program` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+The content of `module/main.k` is
+
+```c++
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    auto exec_args = kcl_lib::ExecProgramArgs {
+        .k_filename_list = rust::Vec({ rust::String("../test_data/update_dependencies/main.k") }),
+        .external_pkgs = result.external_pkgs,
+    };
+    auto exec_result = kcl_lib::exec_program(exec_args);
+    std::cout << exec_result.yaml_result.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/c-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/c-api.md
index 55259822..5bfe4678 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/c-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/c-api.md
@@ -105,7 +105,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```c
 #include <kcl_lib.h>
 
 int validate(const char* code_str, const char* data_str)
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/cpp-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/cpp-api.md
index 820f8336..628d20d1 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/cpp-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/xlang-api/cpp-api.md
@@ -80,7 +80,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```cpp
 #include "kcl_lib.hpp"
 #include <iostream>
 
@@ -113,3 +113,136 @@ int main()
 
 </p>
 </details>
+
+### override_file
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```c++
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C++ Code
+
+```cpp
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::OverrideFileArgs {
+        .file = rust::String("main.k"),
+        .specs = rust::Vec({ rust::String("b.a=2") }),
+    };
+    auto result = kcl_lib::override_file(args);
+    std::cout << result.result << std::endl;
+    std::cout << result.parse_errors.size() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+### update_dependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    std::cout << result.external_pkgs[0].pkg_name.c_str() << std::endl;
+    std::cout << result.external_pkgs[1].pkg_name.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+Call `exec_program` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+The content of `module/main.k` is
+
+```c++
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    auto exec_args = kcl_lib::ExecProgramArgs {
+        .k_filename_list = rust::Vec({ rust::String("../test_data/update_dependencies/main.k") }),
+        .external_pkgs = result.external_pkgs,
+    };
+    auto exec_result = kcl_lib::exec_program(exec_args);
+    std::cout << exec_result.yaml_result.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/c-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/c-api.md
index 55259822..5bfe4678 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/c-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/c-api.md
@@ -105,7 +105,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```c
 #include <kcl_lib.h>
 
 int validate(const char* code_str, const char* data_str)
diff --git a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/cpp-api.md b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/cpp-api.md
index 820f8336..628d20d1 100644
--- a/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/cpp-api.md
+++ b/i18n/zh-CN/docusaurus-plugin-content-docs/version-0.9/reference/xlang-api/cpp-api.md
@@ -80,7 +80,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```cpp
 #include "kcl_lib.hpp"
 #include <iostream>
 
@@ -113,3 +113,136 @@ int main()
 
 </p>
 </details>
+
+### override_file
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```c++
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C++ Code
+
+```cpp
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::OverrideFileArgs {
+        .file = rust::String("main.k"),
+        .specs = rust::Vec({ rust::String("b.a=2") }),
+    };
+    auto result = kcl_lib::override_file(args);
+    std::cout << result.result << std::endl;
+    std::cout << result.parse_errors.size() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+### update_dependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    std::cout << result.external_pkgs[0].pkg_name.c_str() << std::endl;
+    std::cout << result.external_pkgs[1].pkg_name.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+Call `exec_program` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+The content of `module/main.k` is
+
+```c++
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    auto exec_args = kcl_lib::ExecProgramArgs {
+        .k_filename_list = rust::Vec({ rust::String("../test_data/update_dependencies/main.k") }),
+        .external_pkgs = result.external_pkgs,
+    };
+    auto exec_result = kcl_lib::exec_program(exec_args);
+    std::cout << exec_result.yaml_result.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
diff --git a/versioned_docs/version-0.9/reference/xlang-api/c-api.md b/versioned_docs/version-0.9/reference/xlang-api/c-api.md
index 21a35d4e..dea5cb25 100644
--- a/versioned_docs/version-0.9/reference/xlang-api/c-api.md
+++ b/versioned_docs/version-0.9/reference/xlang-api/c-api.md
@@ -105,7 +105,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```c
 #include <kcl_lib.h>
 
 int validate(const char* code_str, const char* data_str)
diff --git a/versioned_docs/version-0.9/reference/xlang-api/cpp-api.md b/versioned_docs/version-0.9/reference/xlang-api/cpp-api.md
index 6173f76c..4673fb98 100644
--- a/versioned_docs/version-0.9/reference/xlang-api/cpp-api.md
+++ b/versioned_docs/version-0.9/reference/xlang-api/cpp-api.md
@@ -80,7 +80,7 @@ Validate code using schema and JSON/YAML data strings.
 <details><summary>Example</summary>
 <p>
 
-```rust
+```cpp
 #include "kcl_lib.hpp"
 #include <iostream>
 
@@ -113,3 +113,136 @@ int main()
 
 </p>
 </details>
+
+### override_file
+
+Override KCL file with arguments. See [https://www.kcl-lang.io/docs/user_docs/guides/automation](https://www.kcl-lang.io/docs/user_docs/guides/automation) for more override spec guide.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `main.k` is
+
+```c++
+a = 1
+
+b = {
+    "a": 1
+    "b": 2
+}
+```
+
+C++ Code
+
+```cpp
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::OverrideFileArgs {
+        .file = rust::String("main.k"),
+        .specs = rust::Vec({ rust::String("b.a=2") }),
+    };
+    auto result = kcl_lib::override_file(args);
+    std::cout << result.result << std::endl;
+    std::cout << result.parse_errors.size() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+### update_dependencies
+
+Download and update dependencies defined in the `kcl.mod` file and return the external package name and location list.
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    std::cout << result.external_pkgs[0].pkg_name.c_str() << std::endl;
+    std::cout << result.external_pkgs[1].pkg_name.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>
+
+Call `exec_program` with external dependencies
+
+<details><summary>Example</summary>
+<p>
+
+The content of `module/kcl.mod` is
+
+```yaml
+[package]
+name = "mod_update"
+edition = "0.0.1"
+version = "0.0.1"
+
+[dependencies]
+helloworld = { oci = "oci://ghcr.io/kcl-lang/helloworld", tag = "0.1.0" }
+flask = { git = "https://github.com/kcl-lang/flask-demo-kcl-manifests", commit = "ade147b" }
+```
+
+The content of `module/main.k` is
+
+```c++
+import helloworld
+import flask
+
+a = helloworld.The_first_kcl_program
+```
+
+C++ Code
+
+```c++
+#include "kcl_lib.hpp"
+#include <iostream>
+
+int main()
+{
+    auto args = kcl_lib::UpdateDependenciesArgs {
+        .manifest_path = rust::String("../test_data/update_dependencies"),
+    };
+    auto result = kcl_lib::update_dependencies(args);
+    auto exec_args = kcl_lib::ExecProgramArgs {
+        .k_filename_list = rust::Vec({ rust::String("../test_data/update_dependencies/main.k") }),
+        .external_pkgs = result.external_pkgs,
+    };
+    auto exec_result = kcl_lib::exec_program(exec_args);
+    std::cout << exec_result.yaml_result.c_str() << std::endl;
+    return 0;
+}
+```
+
+</p>
+</details>