diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_boolean.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_boolean.snap.new
new file mode 100644
index 000000000..bbc1e5670
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_boolean.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1237
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" True"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_dict.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_dict.snap.new
new file mode 100644
index 000000000..d98a1b8b0
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_dict.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1245
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" {}"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_integer.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_integer.snap.new
new file mode 100644
index 000000000..8f367d12b
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_integer.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1229
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" 1"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_list.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_list.snap.new
new file mode 100644
index 000000000..5753bed49
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_list.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1221
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" []"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_schema.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_schema.snap.new
new file mode 100644
index 000000000..5844c25d6
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_schema.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1253
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" sub.Person1{}"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_strings.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_strings.snap.new
new file mode 100644
index 000000000..2421f55a2
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_strings.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1213
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" \"abc\"", " \"def\""]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_true_false.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_true_false.snap.new
new file mode 100644
index 000000000..681c86af1
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__attr_value_completion_true_false.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1205
+expression: "format! (\"{:?}\", got_labels)"
+---
+[" False", " True"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__basic_completion_labels.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__basic_completion_labels.snap.new
new file mode 100644
index 000000000..1c2465610
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__basic_completion_labels.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1189
+expression: "format! (\"{:?}\", got_labels)"
+---
+["age", "name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__check_scope_completion_test_part2.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__check_scope_completion_test_part2.snap.new
new file mode 100644
index 000000000..c0087b903
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__check_scope_completion_test_part2.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1357
+expression: "format! (\"{:?}\", got_labels)"
+---
+["Person", "Person{}", "name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__comment_completion_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__comment_completion_test.snap.new
new file mode 100644
index 000000000..ccd1eb093
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__comment_completion_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1333
+expression: "format! (\"{:?}\", got_labels)"
+---
+[]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_schema_attr_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_schema_attr_completion.snap.new
new file mode 100644
index 000000000..a63e3c5d8
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_schema_attr_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1109
+expression: "format! (\"{:?}\", got_labels)"
+---
+["age", "name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_str_builtin_func_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_str_builtin_func_completion.snap.new
new file mode 100644
index 000000000..fbc79fb06
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__dot_str_builtin_func_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1117
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_builtin_package_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_builtin_package_test.snap.new
new file mode 100644
index 000000000..f12d2aebb
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_builtin_package_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1197
+expression: "format! (\"{:?}\", got_labels)"
+---
+["base64", "collection", "crypto", "datetime", "file", "json", "manifests", "math", "net", "regex", "runtime", "template", "units", "yaml"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_path_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_path_completion.snap.new
new file mode 100644
index 000000000..3059f513a
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_path_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1125
+expression: "format! (\"{:?}\", got_labels)"
+---
+["file1", "file2", "subpkg"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_schema_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_schema_completion.snap.new
new file mode 100644
index 000000000..ab7baa2b7
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__import_pkg_schema_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1133
+expression: "format! (\"{:?}\", got_labels)"
+---
+["Person1"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part1.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part1.snap.new
new file mode 100644
index 000000000..e774879b1
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part1.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1365
+expression: "format! (\"{:?}\", got_labels)"
+---
+[]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part2.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part2.snap.new
new file mode 100644
index 000000000..94c203112
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__join_str_inner_completion_test_part2.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1373
+expression: "format! (\"{:?}\", got_labels)"
+---
+[]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__literal_str_builtin_func_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__literal_str_builtin_func_completion.snap.new
new file mode 100644
index 000000000..f1071062d
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__literal_str_builtin_func_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1149
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__math_func_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__math_func_completion.snap.new
new file mode 100644
index 000000000..9845460bf
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__math_func_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1141
+expression: "format! (\"{:?}\", got_labels)"
+---
+["ceil(…)", "exp(…)", "expm1(…)", "factorial(…)", "floor(…)", "gcd(…)", "isfinite(…)", "isinf(…)", "isnan(…)", "log(…)", "log10(…)", "log1p(…)", "log2(…)", "modf(…)", "pow(…)", "sqrt(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__missing_expr_completion_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__missing_expr_completion_test.snap.new
new file mode 100644
index 000000000..0f94e942b
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__missing_expr_completion_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1341
+expression: "format! (\"{:?}\", got_labels)"
+---
+["cpu", "memory"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_attr_completion_labels.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_attr_completion_labels.snap.new
new file mode 100644
index 000000000..f441a2183
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_attr_completion_labels.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1101
+expression: "format! (\"{:?}\", got_labels)"
+---
+["", "age", "math", "name", "subpkg"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_docstring_newline_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_docstring_newline_test.snap.new
new file mode 100644
index 000000000..d93324d16
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_docstring_newline_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1269
+expression: "format! (\"{:?}\", got_labels)"
+---
+["\n\nAttributes\n----------\nname: \nworkloadType: \nreplica: \n\nExamples\n--------\n"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_end_pos_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_end_pos_test.snap.new
new file mode 100644
index 000000000..4aa0ab358
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_end_pos_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1325
+expression: "format! (\"{:?}\", got_labels)"
+---
+["Params", "Params{}", "max", "min"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_sig_completion_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_sig_completion_test.snap.new
new file mode 100644
index 000000000..d41eb6716
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_sig_completion_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1261
+expression: "format! (\"{:?}\", got_labels)"
+---
+["Base", "Base{}", "Config", "Config{}", "Name", "Name{}", "Person", "Person(b){}", "abs(…)", "all_true(…)", "any_true(…)", "bin(…)", "bool(…)", "dict(…)", "float(…)", "hex(…)", "int(…)", "isnullish(…)", "isunique(…)", "len(…)", "list(…)", "max(…)", "min(…)", "multiplyof(…)", "n", "oct(…)", "option(…)", "ord(…)", "p", "pow(…)", "print(…)", "range(…)", "round(…)", "sorted(…)", "str(…)", "sum(…)", "typeof(…)", "zip(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_ty_attr_complete_test.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_ty_attr_complete_test.snap.new
new file mode 100644
index 000000000..6f287b961
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_ty_attr_complete_test.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1317
+expression: "format! (\"{:?}\", got_labels)"
+---
+["name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part1.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part1.snap.new
new file mode 100644
index 000000000..222e567ba
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part1.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1381
+expression: "format! (\"{:?}\", got_labels)"
+---
+["name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part2.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part2.snap.new
new file mode 100644
index 000000000..e8b8365e8
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__schema_type_attr_completion_test_part2.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1389
+expression: "format! (\"{:?}\", got_labels)"
+---
+["name"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__single_schema_attr_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__single_schema_attr_completion.snap.new
new file mode 100644
index 000000000..33dc70c30
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__single_schema_attr_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1157
+expression: "format! (\"{:?}\", got_labels)"
+---
+["a"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_end_of_literal.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_end_of_literal.snap.new
new file mode 100644
index 000000000..ce7fdee9f
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_end_of_literal.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1277
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_1.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_1.snap.new
new file mode 100644
index 000000000..e3cff3731
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_1.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1293
+expression: "format! (\"{:?}\", got_labels)"
+---
+[]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_2.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_2.snap.new
new file mode 100644
index 000000000..3717791ce
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_inside_literal_2.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1301
+expression: "format! (\"{:?}\", got_labels)"
+---
+[]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_second_line_end.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_second_line_end.snap.new
new file mode 100644
index 000000000..40ed7012f
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_second_line_end.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1285
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_third_line.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_third_line.snap.new
new file mode 100644
index 000000000..2e0865e3c
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__str_dot_completion_test_third_line.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1309
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__string_union_type_completion.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__string_union_type_completion.snap.new
new file mode 100644
index 000000000..118a3df9d
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__string_union_type_completion.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1165
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__system_pkg_labels.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__system_pkg_labels.snap.new
new file mode 100644
index 000000000..43c12c3d9
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__system_pkg_labels.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1181
+expression: "format! (\"{:?}\", got_labels)"
+---
+["capitalize(…)", "count(…)", "endswith(…)", "find(…)", "format(…)", "index(…)", "isalnum(…)", "isalpha(…)", "isdigit(…)", "islower(…)", "isspace(…)", "istitle(…)", "isupper(…)", "join(…)", "lower(…)", "lstrip(…)", "removeprefix(…)", "removesuffix(…)", "replace(…)", "rfind(…)", "rindex(…)", "rsplit(…)", "rstrip(…)", "split(…)", "splitlines(…)", "startswith(…)", "strip(…)", "title(…)", "upper(…)"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels.snap.new
new file mode 100644
index 000000000..7d1e0c97d
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1093
+expression: "format! (\"{:?}\", got_labels)"
+---
+["", "Config", "Config{}", "P", "Person", "Person1{}", "Person{}", "P{}", "aaaa", "math", "n", "p", "p1", "p2", "p3", "p4", "subpkg"]
diff --git a/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels_without_dot.snap.new b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels_without_dot.snap.new
new file mode 100644
index 000000000..ad074654d
--- /dev/null
+++ b/kclvm/tools/src/LSP/src/snapshots/kcl_language_server__completion__tests__var_completion_labels_without_dot.snap.new
@@ -0,0 +1,6 @@
+---
+source: tools/src/LSP/src/completion.rs
+assertion_line: 1173
+expression: "format! (\"{:?}\", got_labels)"
+---
+["Config", "Config{}", "P", "Person", "Person1{}", "Person{}", "P{}", "aaaa", "math", "n", "p", "p1", "p2", "p3", "p4", "pkg", "subpkg"]