diff --git a/.gitignore b/.gitignore
index f66c3d4..64edc94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 vscode/node_modules
+vscode/out
+lsp-server/build
diff --git a/lsp-server/.clang-format b/lsp-server/.clang-format
new file mode 100644
index 0000000..bd37759
--- /dev/null
+++ b/lsp-server/.clang-format
@@ -0,0 +1,43 @@
+---
+Language: Cpp
+BasedOnStyle: Microsoft
+AccessModifierOffset: -4
+AlignEscapedNewlines: Left
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortFunctionsOnASingleLine: All
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterCaseLabel: true
+  AfterUnion: true
+  AfterExternBlock: false
+BreakBeforeTernaryOperators: false
+BreakConstructorInitializers: AfterColon
+BreakInheritanceList: AfterColon
+ColumnLimit: 0
+CommentPragmas: "suppress"
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+Cpp11BracedListStyle: false
+FixNamespaceComments: false
+IncludeBlocks: Regroup
+IncludeCategories:
+    - Regex: '^.*(precomp|pch|stdafx)'
+      Priority: -1
+    - Regex: '^".*"'
+      Priority: 1
+    - Regex: '^<.*>'
+      Priority: 2
+    - Regex: '.*'
+      Priority: 3
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: "BEGIN_TEST_METHOD_PROPERTIES|BEGIN_MODULE|BEGIN_TEST_CLASS|BEGIN_TEST_METHOD"
+MacroBlockEnd: "END_TEST_METHOD_PROPERTIES|END_MODULE|END_TEST_CLASS|END_TEST_METHOD"
+NamespaceIndentation: All
+PointerAlignment: Left
+ReflowComments: false
+SortIncludes: false
+SpaceAfterTemplateKeyword: false
+SpacesInAngles: false
+SpacesInContainerLiterals: false
diff --git a/lsp-server/CMakeLists.txt b/lsp-server/CMakeLists.txt
new file mode 100644
index 0000000..22ce205
--- /dev/null
+++ b/lsp-server/CMakeLists.txt
@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.10)
+project(tsl-server)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(nlohmann_json REQUIRED)
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src)
+set(SOURCES
+    src/main.cpp
+    src/language/tsl_keywords.cpp
+    src/lsp/dispacther.cpp
+    src/lsp/server.cpp
+    src/lsp/logger.cpp
+    src/provider/base/provider_registry.cpp
+    src/provider/initialize/initialize_provider.cpp
+    src/provider/initialized/initialized_provider.cpp
+    src/provider/text_document/did_open_provider.cpp
+    src/provider/text_document/did_change_provider.cpp
+    src/provider/text_document/completion_provider.cpp
+    src/provider/trace/set_trace_provider.cpp
+)
+
+add_executable(${PROJECT_NAME} ${SOURCES})
+target_link_libraries(${PROJECT_NAME}
+    nlohmann_json::nlohmann_json
+)
+
diff --git a/lsp-server/src/language/tsl_keywords.cpp b/lsp-server/src/language/tsl_keywords.cpp
new file mode 100644
index 0000000..034f796
--- /dev/null
+++ b/lsp-server/src/language/tsl_keywords.cpp
@@ -0,0 +1,281 @@
+#include <vector>
+#include <cctype>
+#include <algorithm>
+#include "./tsl_keywords.hpp"
+
+namespace tsl
+{
+    std::vector<KeywordInfo> TslKeywords::keywords_;
+    std::unordered_set<std::string> TslKeywords::keyword_set_;
+    bool TslKeywords::initialized_ = false;
+
+    const std::vector<KeywordInfo>& TslKeywords::GetAllKeywords()
+    {
+        InitKeywords();
+        return keywords_;
+    }
+
+    std::vector<KeywordInfo> TslKeywords::GetKeywordsByCategory(KeywordCategory category)
+    {
+        InitKeywords();
+        std::vector<KeywordInfo> result;
+
+        for (const auto& keyword : keywords_)
+            if (keyword.category == category)
+                result.push_back(keyword);
+        return result;
+    }
+
+    std::vector<lsp::CompletionItem> TslKeywords::GetCompletionItems(const std::string& prefix)
+    {
+        InitKeywords();
+        std::vector<lsp::CompletionItem> result;
+        std::string lower_prefix = ToLowerCase(prefix);
+
+        for (const auto& keyword : keywords_)
+        {
+            if (prefix.empty() || StartsWith(ToLowerCase(keyword.keyword), lower_prefix))
+            {
+                lsp::CompletionItem item;
+                item.label = keyword.keyword;
+                item.kind = keyword.completion_kind;
+                item.detail = keyword.description;
+                item.insert_text = keyword.keyword;
+                result.push_back(item);
+            }
+        }
+        // 按字母顺序排序
+        std::sort(result.begin(), result.end(),
+                  [](const lsp::CompletionItem& a, const lsp::CompletionItem& b) {
+            return a.label < b.label;
+        });
+        return result;
+    }
+
+    KeywordCategory TslKeywords::GetKeywordCategory(const std::string& word)
+    {
+        InitKeywords();
+        std::string lower_word = ToLowerCase(word);
+
+        for (const auto& keyword : keywords_)
+        {
+            if (ToLowerCase(keyword.keyword) == lower_word) {
+                return keyword.category;
+            }
+        }
+
+        // 如果没找到，返回一个默认值（可以考虑抛出异常）
+        return KeywordCategory::kProgramStructure;
+    }
+
+    void TslKeywords::InitKeywords()
+    {
+        if (initialized_)
+            return;
+        keywords_ = {
+            // Program Structure
+            { "program", KeywordCategory::kProgramStructure, "Program declaration", lsp::CompletionItemKind::kKeyword },
+            { "function", KeywordCategory::kProgramStructure, "Function declaration", lsp::CompletionItemKind::kFunction },
+            { "procedure", KeywordCategory::kProgramStructure, "Procedure declaration", lsp::CompletionItemKind::kFunction },
+            { "unit", KeywordCategory::kProgramStructure, "Unit declaration", lsp::CompletionItemKind::kModule },
+            { "uses", KeywordCategory::kProgramStructure, "Uses clause", lsp::CompletionItemKind::kKeyword },
+            { "implementation", KeywordCategory::kProgramStructure, "Implementation section", lsp::CompletionItemKind::kKeyword },
+            { "interface", KeywordCategory::kProgramStructure, "Interface section", lsp::CompletionItemKind::kInterface },
+            { "initialization", KeywordCategory::kProgramStructure, "Initialization section", lsp::CompletionItemKind::kKeyword },
+            { "finalization", KeywordCategory::kProgramStructure, "Finalization section", lsp::CompletionItemKind::kKeyword },
+
+            // Data Types
+            { "string", KeywordCategory::kDataTypes, "String data type", lsp::CompletionItemKind::kClass },
+            { "integer", KeywordCategory::kDataTypes, "Integer data type", lsp::CompletionItemKind::kClass },
+            { "boolean", KeywordCategory::kDataTypes, "Boolean data type", lsp::CompletionItemKind::kClass },
+            { "int64", KeywordCategory::kDataTypes, "64-bit integer data type", lsp::CompletionItemKind::kClass },
+            { "real", KeywordCategory::kDataTypes, "Real number data type", lsp::CompletionItemKind::kClass },
+            { "array", KeywordCategory::kDataTypes, "Array data type", lsp::CompletionItemKind::kClass },
+
+            // Class Types
+            { "type", KeywordCategory::kClassTypes, "Type declaration", lsp::CompletionItemKind::kKeyword },
+            { "class", KeywordCategory::kClassTypes, "Class declaration", lsp::CompletionItemKind::kClass },
+            { "fakeclass", KeywordCategory::kClassTypes, "Fake class declaration", lsp::CompletionItemKind::kClass },
+            { "new", KeywordCategory::kClassTypes, "Object instantiation", lsp::CompletionItemKind::kKeyword },
+
+            // Class Modifiers
+            { "override", KeywordCategory::kClassModifiers, "Override method", lsp::CompletionItemKind::kKeyword },
+            { "overload", KeywordCategory::kClassModifiers, "Overload method", lsp::CompletionItemKind::kKeyword },
+            { "virtual", KeywordCategory::kClassModifiers, "Virtual method", lsp::CompletionItemKind::kKeyword },
+            { "property", KeywordCategory::kClassModifiers, "Property declaration", lsp::CompletionItemKind::kProperty },
+            { "self", KeywordCategory::kClassModifiers, "Self reference", lsp::CompletionItemKind::kVariable },
+            { "inherited", KeywordCategory::kClassModifiers, "Inherited method call", lsp::CompletionItemKind::kKeyword },
+
+            // Access Modifiers
+            { "public", KeywordCategory::kAccessModifiers, "Public access modifier", lsp::CompletionItemKind::kKeyword },
+            { "protected", KeywordCategory::kAccessModifiers, "Protected access modifier", lsp::CompletionItemKind::kKeyword },
+            { "private", KeywordCategory::kAccessModifiers, "Private access modifier", lsp::CompletionItemKind::kKeyword },
+            { "published", KeywordCategory::kAccessModifiers, "Published access modifier", lsp::CompletionItemKind::kKeyword },
+
+            // Property Accessors
+            { "read", KeywordCategory::kPropertyAccessors, "Property read accessor", lsp::CompletionItemKind::kKeyword },
+            { "write", KeywordCategory::kPropertyAccessors, "Property write accessor", lsp::CompletionItemKind::kKeyword },
+
+            // Constructors
+            { "create", KeywordCategory::kConstructors, "Constructor method", lsp::CompletionItemKind::kConstructor },
+            { "destroy", KeywordCategory::kConstructors, "Destructor method", lsp::CompletionItemKind::kMethod },
+            { "operator", KeywordCategory::kConstructors, "Operator overload", lsp::CompletionItemKind::kOperator },
+
+            // Variable Modifiers
+            { "external", KeywordCategory::kVariableModifiers, "External declaration", lsp::CompletionItemKind::kKeyword },
+            { "const", KeywordCategory::kVariableModifiers, "Constant declaration", lsp::CompletionItemKind::kConstant },
+            { "out", KeywordCategory::kVariableModifiers, "Output parameter", lsp::CompletionItemKind::kKeyword },
+            { "var", KeywordCategory::kVariableModifiers, "Variable declaration", lsp::CompletionItemKind::kVariable },
+            { "global", KeywordCategory::kVariableModifiers, "Global variable", lsp::CompletionItemKind::kVariable },
+            { "static", KeywordCategory::kVariableModifiers, "Static variable", lsp::CompletionItemKind::kVariable },
+
+            // Conditionals
+            { "if", KeywordCategory::kConditionals, "If statement", lsp::CompletionItemKind::kKeyword },
+            { "else", KeywordCategory::kConditionals, "Else clause", lsp::CompletionItemKind::kKeyword },
+            { "then", KeywordCategory::kConditionals, "Then clause", lsp::CompletionItemKind::kKeyword },
+            { "case", KeywordCategory::kConditionals, "Case statement", lsp::CompletionItemKind::kKeyword },
+            { "of", KeywordCategory::kConditionals, "Of clause", lsp::CompletionItemKind::kKeyword },
+
+            // Loops
+            { "for", KeywordCategory::kLoops, "For loop", lsp::CompletionItemKind::kKeyword },
+            { "while", KeywordCategory::kLoops, "While loop", lsp::CompletionItemKind::kKeyword },
+            { "do", KeywordCategory::kLoops, "Do clause", lsp::CompletionItemKind::kKeyword },
+            { "downto", KeywordCategory::kLoops, "Downto clause", lsp::CompletionItemKind::kKeyword },
+            { "step", KeywordCategory::kLoops, "Step clause", lsp::CompletionItemKind::kKeyword },
+            { "until", KeywordCategory::kLoops, "Until clause", lsp::CompletionItemKind::kKeyword },
+            { "repeat", KeywordCategory::kLoops, "Repeat loop", lsp::CompletionItemKind::kKeyword },
+            { "to", KeywordCategory::kLoops, "To clause", lsp::CompletionItemKind::kKeyword },
+
+            // Branch Control
+            { "break", KeywordCategory::kBranchControl, "Break statement", lsp::CompletionItemKind::kKeyword },
+            { "continue", KeywordCategory::kBranchControl, "Continue statement", lsp::CompletionItemKind::kKeyword },
+            { "goto", KeywordCategory::kBranchControl, "Goto statement", lsp::CompletionItemKind::kKeyword },
+            { "label", KeywordCategory::kBranchControl, "Label declaration", lsp::CompletionItemKind::kKeyword },
+            { "exit", KeywordCategory::kBranchControl, "Exit statement", lsp::CompletionItemKind::kKeyword },
+
+            // Return Control
+            { "return", KeywordCategory::kReturnControl, "Return statement", lsp::CompletionItemKind::kKeyword },
+            { "debugreturn", KeywordCategory::kReturnControl, "Debug return statement", lsp::CompletionItemKind::kKeyword },
+            { "debugrunenv", KeywordCategory::kReturnControl, "Debug run environment", lsp::CompletionItemKind::kKeyword },
+            { "debugrunenvdo", KeywordCategory::kReturnControl, "Debug run environment do", lsp::CompletionItemKind::kKeyword },
+
+            // Block Control
+            { "begin", KeywordCategory::kBlockControl, "Begin block", lsp::CompletionItemKind::kKeyword },
+            { "end", KeywordCategory::kBlockControl, "End block", lsp::CompletionItemKind::kKeyword },
+            { "with", KeywordCategory::kBlockControl, "With statement", lsp::CompletionItemKind::kKeyword },
+
+            // References
+            { "weakref", KeywordCategory::kReferences, "Weak reference", lsp::CompletionItemKind::kKeyword },
+            { "autoref", KeywordCategory::kReferences, "Auto reference", lsp::CompletionItemKind::kKeyword },
+
+            // Namespace
+            { "namespace", KeywordCategory::kNamespace, "Namespace declaration", lsp::CompletionItemKind::kModule },
+
+            // Exceptions
+            { "except", KeywordCategory::kExceptions, "Exception handling", lsp::CompletionItemKind::kKeyword },
+            { "raise", KeywordCategory::kExceptions, "Raise exception", lsp::CompletionItemKind::kKeyword },
+            { "try", KeywordCategory::kExceptions, "Try block", lsp::CompletionItemKind::kKeyword },
+            { "finally", KeywordCategory::kExceptions, "Finally block", lsp::CompletionItemKind::kKeyword },
+            { "exceptobject", KeywordCategory::kExceptions, "Exception object", lsp::CompletionItemKind::kKeyword },
+
+            // Logical Operators
+            { "and", KeywordCategory::kLogicalOperators, "Logical AND", lsp::CompletionItemKind::kOperator },
+            { "in", KeywordCategory::kLogicalOperators, "In operator", lsp::CompletionItemKind::kOperator },
+            { "is", KeywordCategory::kLogicalOperators, "Is operator", lsp::CompletionItemKind::kOperator },
+            { "not", KeywordCategory::kLogicalOperators, "Logical NOT", lsp::CompletionItemKind::kOperator },
+            { "or", KeywordCategory::kLogicalOperators, "Logical OR", lsp::CompletionItemKind::kOperator },
+
+            // Arithmetic Operators
+            { "div", KeywordCategory::kArithmeticOperators, "Integer division", lsp::CompletionItemKind::kOperator },
+            { "mod", KeywordCategory::kArithmeticOperators, "Modulo operation", lsp::CompletionItemKind::kOperator },
+
+            // Bitwise Operators
+            { "ror", KeywordCategory::kBitwiseOperators, "Rotate right", lsp::CompletionItemKind::kOperator },
+            { "rol", KeywordCategory::kBitwiseOperators, "Rotate left", lsp::CompletionItemKind::kOperator },
+            { "shr", KeywordCategory::kBitwiseOperators, "Shift right", lsp::CompletionItemKind::kOperator },
+            { "shl", KeywordCategory::kBitwiseOperators, "Shift left", lsp::CompletionItemKind::kOperator },
+
+            // Set Operators
+            { "union", KeywordCategory::kSetOperators, "Set union", lsp::CompletionItemKind::kOperator },
+            { "minus", KeywordCategory::kSetOperators, "Set difference", lsp::CompletionItemKind::kOperator },
+            { "union2", KeywordCategory::kSetOperators, "Set union (alternative)", lsp::CompletionItemKind::kOperator },
+
+            // SQL Control
+            { "select", KeywordCategory::kSqlControl, "SQL SELECT", lsp::CompletionItemKind::kKeyword },
+            { "vselect", KeywordCategory::kSqlControl, "Virtual SELECT", lsp::CompletionItemKind::kKeyword },
+            { "sselect", KeywordCategory::kSqlControl, "Special SELECT", lsp::CompletionItemKind::kKeyword },
+            { "update", KeywordCategory::kSqlControl, "SQL UPDATE", lsp::CompletionItemKind::kKeyword },
+            { "delete", KeywordCategory::kSqlControl, "SQL DELETE", lsp::CompletionItemKind::kKeyword },
+            { "mselect", KeywordCategory::kSqlControl, "Multiple SELECT", lsp::CompletionItemKind::kKeyword },
+
+            // SQL Keywords
+            { "sqlin", KeywordCategory::kSqlKeywords, "SQL IN", lsp::CompletionItemKind::kKeyword },
+            { "from", KeywordCategory::kSqlKeywords, "SQL FROM", lsp::CompletionItemKind::kKeyword },
+            { "where", KeywordCategory::kSqlKeywords, "SQL WHERE", lsp::CompletionItemKind::kKeyword },
+            { "group", KeywordCategory::kSqlKeywords, "SQL GROUP", lsp::CompletionItemKind::kKeyword },
+            { "by", KeywordCategory::kSqlKeywords, "SQL BY", lsp::CompletionItemKind::kKeyword },
+            { "order", KeywordCategory::kSqlKeywords, "SQL ORDER", lsp::CompletionItemKind::kKeyword },
+            { "distinct", KeywordCategory::kSqlKeywords, "SQL DISTINCT", lsp::CompletionItemKind::kKeyword },
+            { "join", KeywordCategory::kSqlKeywords, "SQL JOIN", lsp::CompletionItemKind::kKeyword },
+
+            // SQL Operators (note: some overlap with logical operators)
+            { "on", KeywordCategory::kSqlOperators, "SQL ON", lsp::CompletionItemKind::kOperator },
+            { "like", KeywordCategory::kSqlOperators, "SQL LIKE", lsp::CompletionItemKind::kOperator },
+
+            // Calling Conventions
+            { "cdecl", KeywordCategory::kCallingConventions, "C calling convention", lsp::CompletionItemKind::kKeyword },
+            { "pascal", KeywordCategory::kCallingConventions, "Pascal calling convention", lsp::CompletionItemKind::kKeyword },
+            { "stdcall", KeywordCategory::kCallingConventions, "Standard calling convention", lsp::CompletionItemKind::kKeyword },
+            { "safecall", KeywordCategory::kCallingConventions, "Safe calling convention", lsp::CompletionItemKind::kKeyword },
+            { "fastcall", KeywordCategory::kCallingConventions, "Fast calling convention", lsp::CompletionItemKind::kKeyword },
+            { "register", KeywordCategory::kCallingConventions, "Register calling convention", lsp::CompletionItemKind::kKeyword },
+
+            // System Keywords
+            { "setuid", KeywordCategory::kSystemKeywords, "Set user ID", lsp::CompletionItemKind::kKeyword },
+            { "sudo", KeywordCategory::kSystemKeywords, "Super user do", lsp::CompletionItemKind::kKeyword },
+
+            // Builtin Variables
+            { "paramcount", KeywordCategory::kBuiltinVariables, "Parameter count", lsp::CompletionItemKind::kVariable },
+            { "realparamcount", KeywordCategory::kBuiltinVariables, "Real parameter count", lsp::CompletionItemKind::kVariable },
+            { "params", KeywordCategory::kBuiltinVariables, "Parameters array", lsp::CompletionItemKind::kVariable },
+            { "system", KeywordCategory::kBuiltinVariables, "System variable", lsp::CompletionItemKind::kVariable },
+            { "tslassigning", KeywordCategory::kBuiltinVariables, "TSL assigning", lsp::CompletionItemKind::kVariable },
+            { "likeeps", KeywordCategory::kBuiltinVariables, "Like EPS", lsp::CompletionItemKind::kVariable },
+            { "likeepsrate", KeywordCategory::kBuiltinVariables, "Like EPS rate", lsp::CompletionItemKind::kVariable },
+
+            // Builtin Functions
+            { "echo", KeywordCategory::kBuiltinFunctions, "Echo function", lsp::CompletionItemKind::kFunction },
+            { "mtic", KeywordCategory::kBuiltinFunctions, "MTIC function", lsp::CompletionItemKind::kFunction },
+            { "mtoc", KeywordCategory::kBuiltinFunctions, "MTOC function", lsp::CompletionItemKind::kFunction },
+
+            // Boolean Constants
+            { "false", KeywordCategory::kBooleanConstants, "Boolean false", lsp::CompletionItemKind::kConstant },
+            { "true", KeywordCategory::kBooleanConstants, "Boolean true", lsp::CompletionItemKind::kConstant },
+
+            // Math Constants
+            { "inf", KeywordCategory::kMathConstants, "Infinity", lsp::CompletionItemKind::kConstant },
+            { "nan", KeywordCategory::kMathConstants, "Not a Number", lsp::CompletionItemKind::kConstant },
+
+            // Null Constants
+            { "nil", KeywordCategory::kNullConstants, "Null value", lsp::CompletionItemKind::kConstant }
+        };
+        keyword_set_.clear();
+        for (const auto& keyword : keywords_)
+            keyword_set_.insert(ToLowerCase(keyword.keyword));
+        initialized_ = true;
+    }
+
+    std::string TslKeywords::ToLowerCase(const std::string& str)
+    {
+        std::string result = str;
+        std::transform(result.begin(), result.end(), result.begin(), ::tolower);
+        return result;
+    }
+
+    bool TslKeywords::StartsWith(const std::string& str, const std::string& prefix)
+    {
+        if (prefix.length() > str.length())
+            return false;
+        return str.compare(0, prefix.length(), prefix) == 0;
+    }
+}
diff --git a/lsp-server/src/language/tsl_keywords.hpp b/lsp-server/src/language/tsl_keywords.hpp
new file mode 100644
index 0000000..3d6a135
--- /dev/null
+++ b/lsp-server/src/language/tsl_keywords.hpp
@@ -0,0 +1,71 @@
+#pragma once
+#include <vector>
+#include <string>
+#include <unordered_set>
+#include "../lsp/lsp_types.hpp"
+
+namespace tsl
+{
+    enum class KeywordCategory
+    {
+        kProgramStructure, // program, function, procedure, unit, uses, implementation, interface, initialization, finalization
+        kDataTypes, // string, integer, boolean, int64, real, array
+        kClassTypes, // type, class, fakeclass, new
+        kClassModifiers, // override, overload, virtual, property, self, inherited
+        kAccessModifiers, // public, protected, private, published
+        kPropertyAccessors, // read, write
+        kConstructors, // create, destroy, operator
+        kVariableModifiers, // external, const, out, var, global, static
+        kConditionals, // if, else, then, case, of
+        kLoops, // for, while, do, downto, step, until, repeat, to
+        kBranchControl, // break, continue, goto, label, exit
+        kReturnControl, // return, debugreturn, debugrunenv, debugrunenvdo
+        kBlockControl, // begin, end, with
+        kReferences, // weakref, autoref
+        kNamespace, // namespace
+        kExceptions, // except, raise, try, finally, exceptobject
+        kLogicalOperators, // and, in, is, not, or
+        kArithmeticOperators, // div, mod
+        kBitwiseOperators, // ror, rol, shr, shl
+        kSetOperators, // union, minus, union2
+        kSqlControl, // select, vselect, sselect, update, delete, mselect
+        kSqlOperators, // on, like, in (SQL context)
+        kSqlKeywords, // sqlin, from, where, group, by, order, distinct, join
+        kCallingConventions, // cdecl, pascal, stdcall, safecall, fastcall, register
+        kSystemKeywords, // setuid, sudo
+        kBuiltinVariables, // paramcount, realparamcount, params, system, tslassigning, likeeps, likeepsrate
+        kBuiltinFunctions, // echo, mtic, mtoc
+        kBooleanConstants, // false, true
+        kMathConstants, // inf, nan
+        kNullConstants // nil
+    };
+
+    // 关键字信息
+    struct KeywordInfo
+    {
+        std::string keyword;
+        KeywordCategory category;
+        std::string description;
+        lsp::CompletionItemKind completion_kind;
+    };
+
+    class TslKeywords
+    {
+    public:
+        static const std::vector<KeywordInfo>& GetAllKeywords();
+        static std::vector<KeywordInfo> GetKeywordsByCategory(KeywordCategory category);
+        static std::vector<lsp::CompletionItem> GetCompletionItems(const std::string& prefix = "");
+        static bool IsKeyword(const std::string& word);
+        static KeywordCategory GetKeywordCategory(const std::string& word);
+
+    private:
+        static void InitKeywords();
+        static std::string ToLowerCase(const std::string& str);
+        static bool StartsWith(const std::string& str, const std::string& prefix);
+
+    private:
+        static std::vector<KeywordInfo> keywords_;
+        static std::unordered_set<std::string> keyword_set_;
+        static bool initialized_;
+    };
+}
diff --git a/lsp-server/src/lsp/dispacther.cpp b/lsp-server/src/lsp/dispacther.cpp
new file mode 100644
index 0000000..08f9ffe
--- /dev/null
+++ b/lsp-server/src/lsp/dispacther.cpp
@@ -0,0 +1,63 @@
+#include "./dispacther.hpp"
+
+namespace lsp {
+
+
+    void RequestDispatcher::RegisterProvider(const std::string& method, RequestProvider handler)
+    {
+        providers_[method] = std::move(handler);
+    }
+
+    nlohmann::json RequestDispatcher::Dispatch(const LspRequest& request)
+    {
+        auto it = providers_.find(request.method);
+        if (it != providers_.end()) {
+            try
+            {
+                return it->second(request);
+            } catch (const std::exception& e)
+            {
+                return HandleException(request, e.what());
+            }
+        }
+        return HandleUnknownMethod(request);
+    }
+
+    bool RequestDispatcher::SupportsMethod(const std::string& method) const
+    {
+        return providers_.find(method) != providers_.end();
+    }
+
+    std::vector<std::string> RequestDispatcher::GetSupportedMethods() const
+    {
+        std::vector<std::string> methods;
+        for (const auto& pair : providers_) {
+            methods.push_back(pair.first);
+        }
+        return methods;
+    }
+
+    nlohmann::json RequestDispatcher::HandleUnknownMethod(const LspRequest& request)
+    {
+        nlohmann::json resp;
+        resp["jsonrpc"] = "2.0";
+        resp["id"] = request.id;
+        resp["error"] = {
+        {"code", -32601},
+        {"message", "Method not found: " + request.method}
+        };
+        return resp;
+    }
+
+    nlohmann::json RequestDispatcher::HandleException(const LspRequest& request, const std::string& error_message)
+    {
+        nlohmann::json resp;
+        resp["jsonrpc"] = "2.0";
+        resp["id"] = request.id;
+        resp["error"] = {
+            {"code", -32603}, // Internal error
+            {"message", "Internal error: " + error_message}
+        };
+        return resp;
+    }
+}
diff --git a/lsp-server/src/lsp/dispacther.hpp b/lsp-server/src/lsp/dispacther.hpp
new file mode 100644
index 0000000..c9bff29
--- /dev/null
+++ b/lsp-server/src/lsp/dispacther.hpp
@@ -0,0 +1,27 @@
+#pragma once
+#include "./lsp_types.hpp"
+
+namespace lsp
+{
+
+    // 请求处理函数类型
+    using RequestProvider = std::function<nlohmann::json(const LspRequest&)>;
+
+    class RequestDispatcher
+    {
+    public:
+        RequestDispatcher() = default;
+        void RegisterProvider(const std::string& method, RequestProvider provider); // 可选：重命名
+        nlohmann::json Dispatch(const LspRequest& request);
+        bool SupportsMethod(const std::string& method) const;
+        std::vector<std::string> GetSupportedMethods() const;
+
+    private:
+        nlohmann::json HandleUnknownMethod(const LspRequest& request);
+        nlohmann::json HandleException(const LspRequest& request, const std::string& error_message);
+
+    private:
+        std::unordered_map<std::string, RequestProvider> providers_;
+    };
+
+}
diff --git a/lsp-server/src/lsp/logger.cpp b/lsp-server/src/lsp/logger.cpp
new file mode 100644
index 0000000..95cda38
--- /dev/null
+++ b/lsp-server/src/lsp/logger.cpp
@@ -0,0 +1,60 @@
+#include "./logger.hpp"
+
+namespace lsp::log
+{
+
+    Logger::~Logger()
+    {
+        if (file_stream_.is_open())
+            file_stream_.close();
+    }
+
+    Logger& Logger::Instance()
+    {
+        static Logger logger;
+        return logger;
+    }
+
+    void Logger::SetLevel(LogLevel level)
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        level_ = level;
+    }
+
+    void Logger::SetLogFile(const std::string& filename)
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        if (file_stream_.is_open())
+            file_stream_.close();
+        file_stream_.open(filename, std::ios::app);
+        use_file_ = file_stream_.is_open();
+    }
+
+    void Logger::EnableStderr(bool enable)
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        use_stderr_ = enable;
+    }
+
+    const char* Logger::LevelToString(LogLevel level)
+    {
+        switch (level)
+        {
+        case LogLevel::kOff:
+            return "OFF";
+        case LogLevel::kError:
+            return "ERROR";
+        case LogLevel::kWarn:
+            return "WARN";
+        case LogLevel::kInfo:
+            return "INFO";
+        case LogLevel::kDebug:
+            return "DEBUG";
+        case LogLevel::kVerbose:
+            return "VERBOSE";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
+}
diff --git a/lsp-server/src/lsp/logger.hpp b/lsp-server/src/lsp/logger.hpp
new file mode 100644
index 0000000..ecc94af
--- /dev/null
+++ b/lsp-server/src/lsp/logger.hpp
@@ -0,0 +1,93 @@
+#pragma once
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <mutex>
+
+namespace lsp::log
+{
+    enum class LogLevel
+    {
+        kOff = 0,
+        kError = 1,
+        kWarn = 2,
+        kInfo = 3,
+        kDebug = 4,
+        kVerbose = 5
+    };
+
+    class Logger
+    {
+    public:
+        static Logger& Instance();
+        void SetLevel(LogLevel level);
+        void SetLogFile(const std::string& filename);
+        void EnableStderr(bool enable);
+
+        template<typename... Args>
+        void log(LogLevel level, Args&&... args) {
+            if (level > level_)
+                return;
+
+            std::lock_guard<std::mutex> lock(mutex_);
+
+            std::ostringstream oss;
+            oss << "[TSL-LSP:" << LevelToString(level) << "] ";
+            (oss << ... << args);
+            oss << std::endl;
+
+            std::string message = oss.str();
+
+            if (use_stderr_)
+            {
+                std::cerr << message;
+            }
+
+            if (use_file_ && file_stream_.is_open())
+            {
+                file_stream_ << message;
+                file_stream_.flush();
+            }
+        }
+
+    private:
+        Logger() = default;
+        ~Logger();
+        Logger(const Logger&) = delete;
+        Logger& operator=(const Logger&) = delete;
+
+        const char* LevelToString(LogLevel level);
+
+    private:
+        LogLevel level_;
+        bool use_file_ = false;
+        bool use_stderr_ = false;
+        std::ofstream file_stream_;
+        std::mutex mutex_;
+    };
+
+    template<typename... Args>
+    void Error(Args&&... args) {
+        Logger::Instance().log(LogLevel::kError, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void Warn(Args&&... args) {
+        Logger::Instance().log(LogLevel::kWarn, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void Info(Args&&... args) {
+        Logger::Instance().log(LogLevel::kInfo, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void Debug(Args&&... args) {
+        Logger::Instance().log(LogLevel::kDebug, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void Verbose(Args&&... args) {
+        Logger::Instance().log(LogLevel::kVerbose, std::forward<Args>(args)...);
+    }
+}
diff --git a/lsp-server/src/lsp/lsp_types.hpp b/lsp-server/src/lsp/lsp_types.hpp
new file mode 100644
index 0000000..3f548a9
--- /dev/null
+++ b/lsp-server/src/lsp/lsp_types.hpp
@@ -0,0 +1,63 @@
+#pragma once
+#include <string>
+#include <optional>
+#include <nlohmann/json.hpp>
+
+namespace lsp
+{
+    // LSP请求结构
+    struct LspRequest
+    {
+        std::string jsonrpc;
+        std::string method;
+        nlohmann::json params;
+        nlohmann::json id;
+
+        LspRequest(const nlohmann::json& json) :
+            jsonrpc(json.value("jsonrpc", "2.0")),
+            method(json.value("method", "")),
+            params(json.value("params", nlohmann::json::object())),
+            id(json.value("id", nlohmann::json::array())) {}
+    };
+
+    // 补全项类型枚举
+    enum class CompletionItemKind
+    {
+        kText = 1,
+        kMethod = 2,
+        kFunction = 3,
+        kConstructor = 4,
+        kField = 5,
+        kVariable = 6,
+        kClass = 7,
+        kInterface = 8,
+        kModule = 9,
+        kProperty = 10,
+        kUnit = 11,
+        kValue = 12,
+        kEnum = 13,
+        kKeyword = 14,
+        kSnippet = 15,
+        kColor = 16,
+        kFile = 17,
+        kReference = 18,
+        kFolder = 19,
+        kEnumMember = 20,
+        kConstant = 21,
+        kStruct = 22,
+        kEvent = 23,
+        kOperator = 24,
+        kTypeParameter = 25
+    };
+
+    // 补全项目
+    struct CompletionItem
+    {
+        std::string label;
+        CompletionItemKind kind;
+        std::optional<std::string> detail;
+        std::optional<std::string> documentation;
+        std::optional<std::string> insert_text;
+    };
+
+}
diff --git a/lsp-server/src/lsp/server.cpp b/lsp-server/src/lsp/server.cpp
new file mode 100644
index 0000000..457c98f
--- /dev/null
+++ b/lsp-server/src/lsp/server.cpp
@@ -0,0 +1,126 @@
+#include <exception>
+#include <iostream>
+#include "../provider/base/provider_registry.hpp"
+#include "./server.hpp"
+#include "./logger.hpp"
+
+namespace lsp
+{
+    LspServer::LspServer()
+    {
+        providers::RegisterAllProviders(dispatcher_);
+        log::Debug("LSP server initialized with providers.");
+    }
+
+    void LspServer::Run()
+    {
+        log::Info("LSP server starting main loop...");
+        while (true)
+        {
+            try
+            {
+                std::optional<std::string> message = ReadMessage();
+                if (!message) continue;
+                nlohmann::json response = HandleRequest(*message);
+                if (!response.empty())
+                    SendResponse(response);
+            }
+            catch(const std::exception& e)
+            {
+                log::Error("Error processing message: ", e.what());
+            }
+        }
+        log::Info("LSP server main loop ended");
+    }
+
+    std::optional<std::string> LspServer::ReadMessage()
+    {
+        std::string line;
+        size_t content_length = 0;
+
+        // 读取 LSP Header
+        while (std::getline(std::cin, line))
+        {
+            log::Verbose("Received header line: ", line);
+
+            // 去掉尾部 \r
+            if (!line.empty() && line.back() == '\r')
+                line.pop_back();
+            if (line.empty())
+                break;
+            // 查找 Content-Length
+            if (line.find("Content-Length:") == 0)
+            {
+                std::string length_str = line.substr(15);  // 跳过 "Content-Length:"
+                size_t start = length_str.find_first_not_of(" ");
+                if (start != std::string::npos)
+                {
+                    length_str = length_str.substr(start);
+                    try
+                    {
+                        content_length = std::stoul(length_str);
+                        log::Verbose("Content-Length: ", content_length);
+                    }
+                    catch (const std::exception& e)
+                    {
+                        log::Error("Failed to parse Content-Length: ", e.what());
+                        return std::nullopt;
+                    }
+                }
+            }
+        }
+
+        if (content_length == 0)
+        {
+            log::Warn("No Content-Length found in header");
+            return std::nullopt;
+        }
+
+        // 读取内容体
+        std::string body(content_length, '\0');
+        std::cin.read(&body[0], content_length);
+
+        log::Verbose("Message body: ", body);
+
+        if (std::cin.gcount() != static_cast<std::streamsize>(content_length))
+        {
+            log::Error("Read incomplete message body, expected: ", content_length, ", got: ", std::cin.gcount());
+            return std::nullopt;
+        }
+        return body;
+    }
+
+    nlohmann::json LspServer::HandleRequest(const std::string& raw_request)
+    {
+        try
+        {
+            nlohmann::json json = nlohmann::json::parse(raw_request);
+            LspRequest request(json);
+            log::Debug("Processing method: ", request.method);
+
+            nlohmann::json response = dispatcher_.Dispatch(request);
+            return response;
+        }
+        catch (const std::exception& e)
+        {
+            log::Error("Failed to handle request: ", e.what());
+            return nlohmann::json();
+        }
+    }
+
+    void LspServer::SendResponse(const nlohmann::json& response)
+    {
+        std::string response_str = response.dump();
+        size_t byte_length = response_str.length();
+
+        // 调试：显示实际发送的原始内容
+        log::Debug("Response length: ", byte_length);
+        log::Debug("Raw response content: [", response_str, "]");
+
+        std::cout << "Content-Length: " << byte_length << "\r\n\r\n";
+        std::cout << response_str;
+        std::cout.flush();
+
+        log::Verbose("Response sent successfully");
+    }
+}
diff --git a/lsp-server/src/lsp/server.hpp b/lsp-server/src/lsp/server.hpp
new file mode 100644
index 0000000..9d2941c
--- /dev/null
+++ b/lsp-server/src/lsp/server.hpp
@@ -0,0 +1,27 @@
+#pragma once
+#include <optional>
+#include <string>
+#include "./dispacther.hpp"
+
+namespace lsp
+{
+
+    class LspServer
+    {
+    public:
+        LspServer();
+        ~LspServer() = default;
+        void Run();
+
+    private:
+        // 读取LSP消息
+        std::optional<std::string> ReadMessage();
+        // 处理LSP请求
+        nlohmann::json HandleRequest(const std::string& raw_request);
+        // 发送LSP响应
+        void SendResponse(const nlohmann::json& response);
+
+    private:
+        RequestDispatcher dispatcher_;
+    };
+}
diff --git a/lsp-server/src/main.cpp b/lsp-server/src/main.cpp
new file mode 100644
index 0000000..3aac54e
--- /dev/null
+++ b/lsp-server/src/main.cpp
@@ -0,0 +1,66 @@
+#include <iostream>
+#include <exception>
+#include "./lsp/server.hpp"
+#include "./lsp/logger.hpp"
+
+void ParseArgs(int argc, char* argv[])
+{
+    for (int i = 1; i < argc; ++i)
+    {
+        std::string arg = argv[i];
+
+        if (arg == "--log=verbose")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kVerbose);
+        } else if (arg == "--log=debug")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kDebug);
+        } else if (arg == "--log=info")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kInfo);
+        } else if (arg == "--log=warn")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kWarn);
+        } else if (arg == "--log=error")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kError);
+        } else if (arg == "--log=off")
+        {
+            lsp::log::Logger::Instance().SetLevel(lsp::log::LogLevel::kOff);
+        } else if (arg.find("--log-file=") == 0)
+        {
+            std::string filename = arg.substr(11);  // 跳过 "--log-file="
+            lsp::log::Logger::Instance().SetLogFile(filename);
+        }
+        else if (arg == "--log-stderr")
+        {
+            lsp::log::Logger::Instance().EnableStderr(true);
+        }
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    ParseArgs(argc, argv);
+    try
+    {
+        lsp::log::Info("TSL-LSP server starting...");
+        lsp::LspServer server;
+        server.Run();
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "[TSL-LSP] Server fatal error: " << e.what() << std::endl;
+        lsp::log::Error("Server fatal error: ", e.what());
+        return 1;
+    }
+    catch (...)
+    {
+        std::cerr << "[TSL-LSP] Server unknown fatal error" << std::endl;
+        lsp::log::Error("Server unknown fatal error");
+        return 1;
+    }
+
+    lsp::log::Info("TSL-LSP server stopped normally");
+    return 0;
+}
diff --git a/lsp-server/src/provider/base/provider_interface.hpp b/lsp-server/src/provider/base/provider_interface.hpp
new file mode 100644
index 0000000..eb5ab27
--- /dev/null
+++ b/lsp-server/src/provider/base/provider_interface.hpp
@@ -0,0 +1,23 @@
+
+#pragma once
+#include <string>
+#include "../../lsp/lsp_types.hpp"
+
+namespace lsp::providers
+{
+
+    // LSP请求提供者接口基类
+    class ILspProvider
+    {
+    public:
+        virtual ~ILspProvider() = default;
+
+        // 处理LSP请求
+        virtual nlohmann::json ProvideResponse(const LspRequest& request) = 0;
+        // 获取支持的LSP方法名
+        virtual std::string GetMethod() const = 0;
+        // 获取提供者名称（用于日志和调试）
+        virtual std::string GetProviderName() const = 0;
+    };
+
+}
diff --git a/lsp-server/src/provider/base/provider_registry.cpp b/lsp-server/src/provider/base/provider_registry.cpp
new file mode 100644
index 0000000..8e13975
--- /dev/null
+++ b/lsp-server/src/provider/base/provider_registry.cpp
@@ -0,0 +1,27 @@
+#include "./provider_registry.hpp"
+#include "../initialize/initialize_provider.hpp"
+#include "../initialized/initialized_provider.hpp"
+#include "../text_document/did_open_provider.hpp"
+#include "../text_document/did_change_provider.hpp"
+#include "../text_document/completion_provider.hpp"
+#include "../trace/set_trace_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers
+{
+
+    void RegisterAllProviders(RequestDispatcher& dispatcher)
+    {
+        log::Info("Registering LSP providers...");
+
+        RegisterProvider<initialize::InitializeProvider>(dispatcher);
+        RegisterProvider<initialized::InitializedProvider>(dispatcher);
+        RegisterProvider<text_document::DidOpenProvider>(dispatcher);
+        RegisterProvider<text_document::DidChangeProvider>(dispatcher);
+        RegisterProvider<text_document::CompletionProvider>(dispatcher);
+        RegisterProvider<trace::SetTraceProvider>(dispatcher);
+
+        log::Info("Successfully registered ", dispatcher.GetSupportedMethods().size(), " LSP providers");
+    }
+
+}
diff --git a/lsp-server/src/provider/base/provider_registry.hpp b/lsp-server/src/provider/base/provider_registry.hpp
new file mode 100644
index 0000000..be57f8c
--- /dev/null
+++ b/lsp-server/src/provider/base/provider_registry.hpp
@@ -0,0 +1,30 @@
+#pragma once
+#include "../../lsp/dispacther.hpp"
+#include "./provider_interface.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers
+{
+
+    // 模板函数：注册provider
+    template<typename ProviderClass>
+    void RegisterProvider(RequestDispatcher& dispatcher)
+    {
+        static_assert(std::is_base_of_v<ILspProvider, ProviderClass>,
+                      "Provider must inherit from ILspProvider");
+
+        auto provider = std::make_shared<ProviderClass>();
+
+        log::Info("Registering ", provider->GetProviderName(), " for method: ", provider->GetMethod());
+
+        dispatcher.RegisterProvider(
+            provider->GetMethod(),
+            [provider](const LspRequest& request) -> nlohmann::json {
+                return provider->ProvideResponse(request);
+            });
+    }
+
+    // 批量注册provider
+    void RegisterAllProviders(RequestDispatcher& dispatcher);
+
+}
diff --git a/lsp-server/src/provider/initialize/initialize_provider.cpp b/lsp-server/src/provider/initialize/initialize_provider.cpp
new file mode 100644
index 0000000..2ff57da
--- /dev/null
+++ b/lsp-server/src/provider/initialize/initialize_provider.cpp
@@ -0,0 +1,55 @@
+#include "./initialize_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers::initialize
+{
+
+    nlohmann::json InitializeProvider::ProvideResponse(const LspRequest& request)
+    {
+        nlohmann::json response;
+        response["jsonrpc"] = "2.0";
+        response["id"] = request.id;
+        response["result"] = BuildInitializeResult();
+        log::Debug("InitializeProvider: Providing response for method '", request.method, "' with id ", request.id);
+        return response;
+    }
+
+    inline std::string InitializeProvider::GetMethod() const
+    {
+        return "initialize";
+    }
+
+    inline std::string InitializeProvider::GetProviderName() const
+    {
+        return "InitializeProvider";
+    }
+
+    nlohmann::json InitializeProvider::BuildInitializeResult()
+    {
+        nlohmann::json result;
+        result["capabilities"] = BuildServerCapabilities();
+        result["serverInfo"] = BuildServerInfo();
+        return result;
+    }
+
+    nlohmann::json InitializeProvider::BuildServerCapabilities()
+    {
+        nlohmann::json capabilities;
+        capabilities["textDocumentSync"] = nlohmann::json();
+        capabilities["textDocumentSync"]["change"] = 2;
+        capabilities["textDocumentSync"]["openClose"] = true;
+        capabilities["textDocumentSync"]["save"] = true;
+        capabilities["completionProvider"] = nlohmann::json();
+        capabilities["completionProvider"]["resolveProvider"] = false;
+        return capabilities;
+    }
+
+    nlohmann::json InitializeProvider::BuildServerInfo()
+    {
+        nlohmann::json serverInfo;
+        serverInfo["name"] = "TSL Language Server";
+        serverInfo["version"] = "1.0.0";
+        return serverInfo;
+    }
+
+}
diff --git a/lsp-server/src/provider/initialize/initialize_provider.hpp b/lsp-server/src/provider/initialize/initialize_provider.hpp
new file mode 100644
index 0000000..79f2904
--- /dev/null
+++ b/lsp-server/src/provider/initialize/initialize_provider.hpp
@@ -0,0 +1,20 @@
+#pragma once
+#include "../base/provider_interface.hpp"
+#include <nlohmann/json.hpp>
+
+namespace lsp::providers::initialize
+{
+    class InitializeProvider : public ILspProvider
+    {
+    public:
+        InitializeProvider() = default;
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+
+    private:
+        nlohmann::json BuildServerCapabilities();
+        nlohmann::json BuildServerInfo();
+        nlohmann::json BuildInitializeResult();
+    };
+}
diff --git a/lsp-server/src/provider/initialized/initialized_provider.cpp b/lsp-server/src/provider/initialized/initialized_provider.cpp
new file mode 100644
index 0000000..4c9a35b
--- /dev/null
+++ b/lsp-server/src/provider/initialized/initialized_provider.cpp
@@ -0,0 +1,23 @@
+#include "./initialized_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers::initialized
+{
+
+    nlohmann::json InitializedProvider::ProvideResponse(const LspRequest& request)
+    {
+        log::Debug("InitializedProvider: Providing response for method '", request.method, "' with id ", request.id);
+        return nlohmann::json();
+    }
+
+    inline std::string InitializedProvider::GetMethod() const
+    {
+        return "initialized";
+    }
+
+    inline std::string InitializedProvider::GetProviderName() const
+    {
+        return "InitializedProvider";
+    }
+
+}
diff --git a/lsp-server/src/provider/initialized/initialized_provider.hpp b/lsp-server/src/provider/initialized/initialized_provider.hpp
new file mode 100644
index 0000000..6e8e5f5
--- /dev/null
+++ b/lsp-server/src/provider/initialized/initialized_provider.hpp
@@ -0,0 +1,14 @@
+#pragma once
+#include "../base/provider_interface.hpp"
+
+namespace lsp::providers::initialized
+{
+    class InitializedProvider : public ILspProvider
+    {
+    public:
+        InitializedProvider() = default;
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+    };
+}
diff --git a/lsp-server/src/provider/text_document/completion_provider.cpp b/lsp-server/src/provider/text_document/completion_provider.cpp
new file mode 100644
index 0000000..1970ef6
--- /dev/null
+++ b/lsp-server/src/provider/text_document/completion_provider.cpp
@@ -0,0 +1,212 @@
+#include "./completion_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers::text_document
+{
+    nlohmann::json CompletionProvider::ProvideResponse(const LspRequest& request)
+    {
+        log::Debug("CompletionProvider: Providing response for method '", request.method, "' with id ", request.id);
+        try
+        {
+            nlohmann::json response = BuildCompletionResponse(request);
+            return response;
+        }
+        catch (const std::exception& e)
+        {
+            log::Error(GetProviderName(), ": Error - ", e.what());
+            nlohmann::json errorResponse = CreateErrorResponse(request.id, -32603, e.what());
+            return errorResponse;
+        }
+    }
+
+    inline std::string CompletionProvider::GetMethod() const
+    {
+        return "textDocument/completion";
+    }
+
+    inline std::string CompletionProvider::GetProviderName() const
+    {
+        return "CompletionProvider";
+    }
+
+    nlohmann::json CompletionProvider::BuildCompletionResponse(const LspRequest& request)
+    {
+        nlohmann::json response;
+        response["jsonrpc"] = "2.0";
+        response["id"] = request.id;
+
+        // 验证必要参数
+        if (!request.params.contains("textDocument") || !request.params.contains("position"))
+        {
+            log::Warn(GetProviderName(), ": Missing required parameters in request");
+            // 返回空补全列表而非错误
+            response["result"] = BuildCompletionResult({});
+            return response;
+        }
+
+        // 提取参数
+        std::string uri = ExtractDocumentUri(request.params);
+        nlohmann::json position = ExtractPosition(request.params);
+        std::string prefix = ExtractPrefix(request.params);
+
+        log::Verbose(
+            GetProviderName(), ": Processing completion request for URI='", uri, "', Position=", position.dump(), ", Prefix='", prefix, "'");
+
+        // 收集所有补全项
+        std::vector<CompletionItem> allItems;
+
+        // 添加关键字补全
+        auto keywordItems = ProvideKeywordCompletions(prefix);
+        allItems.insert(allItems.end(), keywordItems.begin(), keywordItems.end());
+
+        // 添加上下文相关补全
+        auto contextualItems = ProvideContextualCompletions(uri, position, prefix);
+        allItems.insert(allItems.end(), contextualItems.begin(), contextualItems.end());
+
+        // 构建响应
+        response["result"] = BuildCompletionResult(allItems);
+
+        log::Info(GetProviderName(), ": Provided ", allItems.size(), " completion items");
+
+        return response;
+    }
+
+    nlohmann::json CompletionProvider::BuildCompletionResult(const std::vector<CompletionItem>& items)
+    {
+        nlohmann::json result;
+        result["isIncomplete"] = false; // 表示这是完整的补全列表
+        result["items"] = nlohmann::json::array();
+
+        for (const auto& item : items)
+            result["items"].push_back(CompletionItemToJson(item));
+
+        return result;
+    }
+
+    std::string CompletionProvider::ExtractDocumentUri(const nlohmann::json& params)
+    {
+        if (params.contains("textDocument") && params["textDocument"].contains("uri"))
+        {
+            std::string uri = params["textDocument"]["uri"].get<std::string>();
+            log::Verbose("ExtractDocumentUri: Found URI: ", uri);
+            return uri;
+        }
+        log::Warn("ExtractDocumentUri: No URI found in parameters");
+        return "";
+    }
+
+    nlohmann::json CompletionProvider::ExtractPosition(const nlohmann::json& params)
+    {
+        if (params.contains("position"))
+        {
+            nlohmann::json pos = params["position"];
+            log::Verbose("ExtractPosition: Found position: ", pos.dump());
+            return pos;
+        }
+        // 返回默认位置
+        nlohmann::json defaultPos;
+        defaultPos["line"] = 0;
+        defaultPos["character"] = 0;
+        log::Warn("ExtractPosition: No position found in parameters, using default (0, 0)");
+        return defaultPos;
+    }
+
+    std::string CompletionProvider::ExtractPrefix(const nlohmann::json& params)
+    {
+        // 方法1: 直接从参数中获取prefix
+        if (params.contains("prefix"))
+        {
+            std::string prefix = params["prefix"].get<std::string>();
+            log::Verbose("ExtractPrefix: Found prefix form params: '", prefix, "'");
+            return prefix;
+        }
+
+        // 方法2: 从context中获取prefix
+        if (params.contains("context") && params["context"].contains("prefix"))
+        {
+            std::string prefix = params["context"]["prefix"].get<std::string>();
+            log::Verbose("ExtractPrefix: Found prefix form params: '", prefix, "'");
+            return prefix;
+        }
+
+        // TODO: 理想情况下，应该从文档内容和位置计算前缀
+        // 这需要维护文档内容的状态
+        log::Verbose("ExtractPrefix: No prefix found, returning empty string");
+        return "";
+    }
+
+    std::vector<CompletionItem> CompletionProvider::ProvideKeywordCompletions(const std::string& prefix)
+    {
+        std::vector<CompletionItem> items;
+
+        // 从tsl_keywords_获取补全项
+        auto tslItems = tsl_keywords_.GetCompletionItems(prefix);
+
+        for (const auto& tslItem : tslItems)
+        {
+            CompletionItem item;
+            item.label = tslItem.label;
+            item.kind = CompletionItemKind::kKeyword; // LSP CompletionItemKind.Keyword
+            item.detail = "TSL Keyword";
+            item.documentation = "TSL language keyword";
+            item.insert_text = tslItem.label;
+
+            items.push_back(item);
+        }
+        log::Debug("ProvideKeywordCompletions: Found ", items.size(), " keyword completions");
+        return items;
+    }
+
+    std::vector<CompletionItem> CompletionProvider::ProvideContextualCompletions(
+        const std::string& uri,
+        const nlohmann::json& position,
+        const std::string& prefix)
+    {
+        log::Debug("ProvideContextualCompletions: Processing contextual completions for URI: ", uri);
+        std::vector<CompletionItem> items;
+
+        // TODO: 基于上下文提供补全
+        // 这里可以添加：
+        // - 变量名补全
+        // - 函数名补全
+        // - 类型补全
+        // - 属性补全等
+        log::Debug("ProvideContextualCompletions: Found ", items.size(), " contextual completions");
+        return items;
+    }
+
+    nlohmann::json CompletionProvider::CompletionItemToJson(const CompletionItem& item)
+    {
+        nlohmann::json json;
+
+        json["label"] = item.label;
+        json["kind"] = item.kind;
+
+        if (!item.detail)
+            json["detail"] = item.detail;
+
+        if (!item.documentation)
+            json["documentation"] = item.documentation;
+
+        if (!item.insert_text)
+            json["insertText"] = item.insert_text;
+
+        return json;
+    }
+
+    nlohmann::json CompletionProvider::CreateErrorResponse(const nlohmann::json& id, int code, const std::string& message)
+    {
+        nlohmann::json response;
+        response["jsonrpc"] = "2.0";
+        response["id"] = id;
+
+        nlohmann::json error;
+        error["code"] = code;
+        error["message"] = GetProviderName() + ": " + message;
+
+        response["error"] = error;
+        log::Error("CreateErrorResponse: Created error response with code ", code, " and message: ", message);
+        return response;
+    }
+
+}
diff --git a/lsp-server/src/provider/text_document/completion_provider.hpp b/lsp-server/src/provider/text_document/completion_provider.hpp
new file mode 100644
index 0000000..5ce8ead
--- /dev/null
+++ b/lsp-server/src/provider/text_document/completion_provider.hpp
@@ -0,0 +1,49 @@
+#pragma once
+#include <string>
+#include <vector>
+#include "../base/provider_interface.hpp"
+#include "../../lsp/lsp_types.hpp"
+#include "../../language/tsl_keywords.hpp"
+
+namespace lsp::providers::text_document
+{
+    class CompletionProvider : public ILspProvider
+    {
+    public:
+        CompletionProvider() = default;
+
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+
+    private:
+        // 构建完整的补全响应
+        nlohmann::json BuildCompletionResponse(const LspRequest& request);
+
+        // 构建补全结果
+        nlohmann::json BuildCompletionResult(const std::vector<CompletionItem>& items);
+
+        // 从请求中提取文档信息
+        std::string ExtractDocumentUri(const nlohmann::json& params);
+        nlohmann::json ExtractPosition(const nlohmann::json& params);
+
+        // 获取补全前缀
+        std::string ExtractPrefix(const nlohmann::json& params);
+
+        // 提供不同类型的补全
+        std::vector<CompletionItem> ProvideKeywordCompletions(const std::string& prefix);
+        std::vector<CompletionItem> ProvideContextualCompletions(
+            const std::string& uri,
+            const nlohmann::json& position,
+            const std::string& prefix);
+
+        // 将CompletionItem转换为JSON
+        nlohmann::json CompletionItemToJson(const CompletionItem& item);
+
+        // 创建错误响应
+        nlohmann::json CreateErrorResponse(const nlohmann::json& id, int code, const std::string& message);
+
+    private:
+        tsl::TslKeywords tsl_keywords_;
+    };
+}
diff --git a/lsp-server/src/provider/text_document/did_change_provider.cpp b/lsp-server/src/provider/text_document/did_change_provider.cpp
new file mode 100644
index 0000000..abde9cb
--- /dev/null
+++ b/lsp-server/src/provider/text_document/did_change_provider.cpp
@@ -0,0 +1,63 @@
+#include "./did_change_provider.hpp"
+#include "./did_open_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers::text_document
+{
+
+    nlohmann::json DidChangeProvider::ProvideResponse(const LspRequest& request)
+    {
+        log::Debug("DidChangeProvider: Providing response for method '", request.method, "' with id ", request.id);
+        try
+        {
+            auto params = request.params;
+            if (params.contains("textDocument") && params.contains("contentChanges"))
+            {
+                auto textDoc = params["textDocument"];
+                std::string uri = textDoc["uri"];
+                auto changes = params["contentChanges"];
+
+                ApplyContentChanges(uri, changes);
+            }
+        }
+        catch (const std::exception& e)
+        {
+            // 处理错误，但不返回错误响应，因为这是通知
+        }
+
+        // 通知不需要响应
+        return nlohmann::json();
+    }
+
+    inline std::string DidChangeProvider::GetMethod() const
+    {
+        return "textDocument/didChange";
+    }
+
+    inline std::string DidChangeProvider::GetProviderName() const
+    {
+        return "DidChangeProvider";
+    }
+
+    void DidChangeProvider::ApplyContentChanges(const std::string& uri, const nlohmann::json& changes)
+    {
+        // 简化实现：假设是全文替换
+        for (const auto& change : changes)
+        {
+            if (change.contains("text"))
+            {
+                // 如果没有range，表示全文替换
+                if (!change.contains("range"))
+                {
+                    DidOpenProvider::document_store[uri] = change["text"];
+                }
+                else
+                {
+                    // 这里可以实现增量更新，现在简化为全文替换
+                    DidOpenProvider::document_store[uri] = change["text"];
+                }
+            }
+        }
+    }
+
+}
diff --git a/lsp-server/src/provider/text_document/did_change_provider.hpp b/lsp-server/src/provider/text_document/did_change_provider.hpp
new file mode 100644
index 0000000..57f1d39
--- /dev/null
+++ b/lsp-server/src/provider/text_document/did_change_provider.hpp
@@ -0,0 +1,17 @@
+#pragma once
+#include "../base/provider_interface.hpp"
+
+namespace lsp::providers::text_document
+{
+    class DidChangeProvider : public ILspProvider
+    {
+    public:
+        DidChangeProvider() = default;
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+
+    private:
+        void ApplyContentChanges(const std::string& uri, const nlohmann::json& changes);
+    };
+}
diff --git a/lsp-server/src/provider/text_document/did_open_provider.cpp b/lsp-server/src/provider/text_document/did_open_provider.cpp
new file mode 100644
index 0000000..81957fc
--- /dev/null
+++ b/lsp-server/src/provider/text_document/did_open_provider.cpp
@@ -0,0 +1,48 @@
+#include "./did_open_provider.hpp"
+#include "../../lsp/logger.hpp"
+
+namespace lsp::providers::text_document
+{
+    std::unordered_map<std::string, std::string> DidOpenProvider::document_store;
+
+    nlohmann::json DidOpenProvider::ProvideResponse(const LspRequest& request)
+    {
+        log::Debug("DidOpenProvider: Providing response for method '", request.method, "' with id ", request.id);
+        try
+        {
+            auto params = request.params;
+            if (params.contains("textDocument"))
+            {
+                auto textDoc = params["textDocument"];
+                std::string uri = textDoc["uri"];
+                std::string text = textDoc["text"];
+
+                // 存储文档内容
+                document_store[uri] = text;
+            }
+        }
+        catch (const std::exception& e)
+        {
+            // 处理错误，但不返回错误响应，因为这是通知
+        }
+        // 通知不需要响应
+        return nlohmann::json();
+    }
+
+    inline std::string DidOpenProvider::GetMethod() const
+    {
+        return "textDocument/didOpen";
+    }
+
+    inline std::string DidOpenProvider::GetProviderName() const
+    {
+        return "DidOpenProvider";
+    }
+
+    std::string DidOpenProvider::GetDocumentContent(const std::string& uri)
+    {
+        auto it = document_store.find(uri);
+        return (it != document_store.end()) ? it->second : "";
+    }
+
+}
diff --git a/lsp-server/src/provider/text_document/did_open_provider.hpp b/lsp-server/src/provider/text_document/did_open_provider.hpp
new file mode 100644
index 0000000..9345c31
--- /dev/null
+++ b/lsp-server/src/provider/text_document/did_open_provider.hpp
@@ -0,0 +1,21 @@
+#pragma once
+#include <unordered_map>
+#include "../base/provider_interface.hpp"
+
+namespace lsp::providers::text_document
+{
+    class DidOpenProvider : public ILspProvider
+    {
+    public:
+        DidOpenProvider() = default;
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+
+        // 静态方法用于获取文档内容
+        static std::string GetDocumentContent(const std::string& uri);
+
+    public:
+        static std::unordered_map<std::string, std::string> document_store;
+    };
+}
diff --git a/lsp-server/src/provider/trace/set_trace_provider.cpp b/lsp-server/src/provider/trace/set_trace_provider.cpp
new file mode 100644
index 0000000..a8ac5d3
--- /dev/null
+++ b/lsp-server/src/provider/trace/set_trace_provider.cpp
@@ -0,0 +1,37 @@
+#include "./set_trace_provider.hpp"
+
+namespace lsp::providers::trace
+{
+
+    nlohmann::json SetTraceProvider::ProvideResponse(const LspRequest& request)
+    {
+        try
+        {
+            auto params = request.params;
+            if (params.contains("value"))
+            {
+                std::string trace_value = params["value"];
+                // 这里可以设置跟踪级别
+                // 例如：设置全局跟踪变量
+            }
+        }
+        catch (const std::exception& e)
+        {
+            // 处理错误
+        }
+
+        // 通知不需要响应
+        return nlohmann::json();
+    }
+
+    inline std::string SetTraceProvider::GetMethod() const
+    {
+        return "$/setTrace";
+    }
+
+    inline std::string SetTraceProvider::GetProviderName() const
+    {
+        return "SetTraceProvider";
+    }
+
+}
diff --git a/lsp-server/src/provider/trace/set_trace_provider.hpp b/lsp-server/src/provider/trace/set_trace_provider.hpp
new file mode 100644
index 0000000..43485c6
--- /dev/null
+++ b/lsp-server/src/provider/trace/set_trace_provider.hpp
@@ -0,0 +1,14 @@
+#pragma once
+#include "../base/provider_interface.hpp"
+
+namespace lsp::providers::trace
+{
+    class SetTraceProvider : public ILspProvider
+    {
+    public:
+        SetTraceProvider() = default;
+        nlohmann::json ProvideResponse(const LspRequest& request) override;
+        std::string GetMethod() const override;
+        std::string GetProviderName() const override;
+    };
+}
diff --git a/test/test_lsp.bash b/test/test_lsp.bash
new file mode 100644
index 0000000..81003e7
--- /dev/null
+++ b/test/test_lsp.bash
@@ -0,0 +1,3 @@
+JSON='{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"processId":null,"rootUri":"file:///tmp","capabilities":{}}}'
+LENGTH=$(echo -n "$JSON" | wc -c)
+printf "Content-Length: %d\r\n\r\n%s" $LENGTH "$JSON" | ../lsp-server/build/arch/tsl-server --log=verbose --log-stderr
diff --git a/test/test_lsp.tsl b/test/test_lsp.tsl
new file mode 100644
index 0000000..e69de29
diff --git a/vscode/.prettierrc b/vscode/.prettierrc
new file mode 100644
index 0000000..222250f
--- /dev/null
+++ b/vscode/.prettierrc
@@ -0,0 +1,11 @@
+{
+  "$schema": "https://json.schemastore.org/prettierrc",
+  "bracketSpacing": false,
+  "arrowParens": "avoid",
+  "printWidth": 120,
+  "singleQuote": true,
+  "trailingComma": "none",
+  "tabWidth": 2,
+  "proseWrap": "never",
+  "semi": false
+}
diff --git a/vscode/.vscodeignore b/vscode/.vscodeignore
index 6c7b69a..fdaad55 100644
--- a/vscode/.vscodeignore
+++ b/vscode/.vscodeignore
@@ -1 +1,4 @@
+src/
+*.ts
+tsconfig*.json
 .gitignore
diff --git a/vscode/CHANGELOG.md b/vscode/CHANGELOG.md
index a126d56..64679f7 100644
--- a/vscode/CHANGELOG.md
+++ b/vscode/CHANGELOG.md
@@ -2,7 +2,11 @@
 
 Notable changes to the `TSL` extension will be documented in this file.
 
-## [1.4.0]: 2025-6-17
+## [2.0.0]: 2025-06-22
+
+- 初步支持`LSP`--关键字补全
+
+## [1.4.0]: 2025-06-17
 
 - 修复：`[weakref]typename: type;`时，变量和类型高亮失效
 - 调整关键字分类
diff --git a/vscode/README.md b/vscode/README.md
index 96f0b8a..75cc30a 100644
--- a/vscode/README.md
+++ b/vscode/README.md
@@ -1,3 +1,6 @@
-# TSL
+# TSL-Devkit
 
-`VSCode` 的 `ts[lf]`语法插件
+`tsl`的`vscode`插件工具集
+
+- 支持`textMate`语法高亮
+- 支持`LSP`补全
diff --git a/vscode/bin/tsl-server b/vscode/bin/tsl-server
new file mode 100644
index 0000000..9339c99
Binary files /dev/null and b/vscode/bin/tsl-server differ
diff --git a/vscode/bin/tsl-server.exe b/vscode/bin/tsl-server.exe
new file mode 100644
index 0000000..fce21b0
Binary files /dev/null and b/vscode/bin/tsl-server.exe differ
diff --git a/vscode/generate_extension.sh b/vscode/generate_extension.sh
new file mode 100644
index 0000000..f6472ca
--- /dev/null
+++ b/vscode/generate_extension.sh
@@ -0,0 +1,3 @@
+cp ../lsp-server/build/arch/tsl-server ./bin/tsl-server
+cp ../lsp-server/build/msys2/tsl-server.exe ./bin/tsl-server.exe
+npx vsce package
diff --git a/vscode/package-lock.json b/vscode/package-lock.json
index a160bba..b21efc8 100644
--- a/vscode/package-lock.json
+++ b/vscode/package-lock.json
@@ -1,15 +1,22 @@
 {
   "name": "tsl-devkit",
-  "version": "1.2.0",
+  "version": "1.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "tsl-devkit",
-      "version": "1.2.0",
-      "license": "Please see LICENSE.txt",
+      "version": "1.4.0",
+      "license": "AGPL-3.0-or-later",
+      "dependencies": {
+        "vscode-languageclient": "^9.0.1"
+      },
       "devDependencies": {
+        "@types/node": "^24.0.3",
+        "@types/vscode": "^1.101.0",
         "@vscode/vsce": "^3.5.0",
+        "cp": "^0.2.0",
+        "prettier": "^3.5.3",
         "typescript": "^5.8.3"
       },
       "engines": {
@@ -595,6 +602,16 @@
         "@textlint/ast-node-types": "^14.8.1"
       }
     },
+    "node_modules/@types/node": {
+      "version": "24.0.3",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.0.3.tgz",
+      "integrity": "sha512-R4I/kzCYAdRLzfiCabn9hxWfbuHS573x+r0dJMkkzThEa7pbrcDWK+9zu3e7aBOouf+rQAciqPFMnxwr0aWgKg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~7.8.0"
+      }
+    },
     "node_modules/@types/normalize-package-data": {
       "version": "2.4.4",
       "resolved": "https://registry.npmjs.org/@types/normalize-package-data/-/normalize-package-data-2.4.4.tgz",
@@ -609,6 +626,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/vscode": {
+      "version": "1.101.0",
+      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.101.0.tgz",
+      "integrity": "sha512-ZWf0IWa+NGegdW3iU42AcDTFHWW7fApLdkdnBqwYEtHVIBGbTu0ZNQKP/kX3Ds/uMJXIMQNAojHR4vexCEEz5Q==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@typespec/ts-http-runtime": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/@typespec/ts-http-runtime/-/ts-http-runtime-0.2.3.tgz",
@@ -954,7 +978,6 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
       "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/base64-js": {
@@ -1275,6 +1298,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cp": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/cp/-/cp-0.2.0.tgz",
+      "integrity": "sha512-4ftCvShHjIZG/zzomHyunNpBof3sOFTTmU6s6q9DdqAL/ANqrKV3pr6Z6kVfBI4hjn59DFLImrBqn7GuuMqSZA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3074,6 +3104,22 @@
         "node": ">=10"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.5.3",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.3.tgz",
+      "integrity": "sha512-QQtaxnoDJeAkDvDKWCLiwIXkTgRhwYDEQCghU9Z6q03iyek/rxRh/2lC3HB7P8sWT2xC/y5JDctPLBIGzHKbhw==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/pump": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.2.tgz",
@@ -3350,7 +3396,6 @@
       "version": "7.7.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
       "integrity": "sha512-RF0Fw+rO5AMf9MAyaRXI4AV0Ulj5lMHqVxxdSgiVbixSCXoEmmX/jk0CuJw4+3SqroYO9VoUh+HcuJivvtJemA==",
-      "dev": true,
       "license": "ISC",
       "bin": {
         "semver": "bin/semver.js"
@@ -3917,6 +3962,13 @@
         "node": ">=20.18.1"
       }
     },
+    "node_modules/undici-types": {
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
+      "integrity": "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/unicorn-magic": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/unicorn-magic/-/unicorn-magic-0.3.0.tgz",
@@ -3989,6 +4041,66 @@
         "url": "https://bevry.me/fund"
       }
     },
+    "node_modules/vscode-jsonrpc": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-8.2.0.tgz",
+      "integrity": "sha512-C+r0eKJUIfiDIfwJhria30+TYWPtuHJXHtI7J0YlOmKAo7ogxP20T0zxB7HZQIFhIyvoBPwWskjxrvAtfjyZfA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/vscode-languageclient": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-9.0.1.tgz",
+      "integrity": "sha512-JZiimVdvimEuHh5olxhxkht09m3JzUGwggb5eRUkzzJhZ2KjCN0nh55VfiED9oez9DyF8/fz1g1iBV3h+0Z2EA==",
+      "license": "MIT",
+      "dependencies": {
+        "minimatch": "^5.1.0",
+        "semver": "^7.3.7",
+        "vscode-languageserver-protocol": "3.17.5"
+      },
+      "engines": {
+        "vscode": "^1.82.0"
+      }
+    },
+    "node_modules/vscode-languageclient/node_modules/brace-expansion": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+      "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "node_modules/vscode-languageclient/node_modules/minimatch": {
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/vscode-languageserver-protocol": {
+      "version": "3.17.5",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.17.5.tgz",
+      "integrity": "sha512-mb1bvRJN8SVznADSGWM9u/b07H7Ecg0I3OgXDuLdn307rl/J3A9YD6/eYOssqhecL27hK1IPZAsaqh00i/Jljg==",
+      "license": "MIT",
+      "dependencies": {
+        "vscode-jsonrpc": "8.2.0",
+        "vscode-languageserver-types": "3.17.5"
+      }
+    },
+    "node_modules/vscode-languageserver-types": {
+      "version": "3.17.5",
+      "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
+      "integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==",
+      "license": "MIT"
+    },
     "node_modules/whatwg-encoding": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-3.1.1.tgz",
diff --git a/vscode/package.json b/vscode/package.json
index af6af4e..df05f4a 100644
--- a/vscode/package.json
+++ b/vscode/package.json
@@ -1,14 +1,13 @@
 {
   "name": "tsl-devkit",
   "displayName": "TSL",
-  "version": "1.4.0",
+  "version": "2.0.0",
   "description": "TSL syntax highlighter support for VSCode.",
   "publisher": "csh",
   "homepage": "https://git.mytsl.cn/csh/tsl-devkit",
   "author": {
     "name": "csh"
   },
-  "scripts": {},
   "repository": {
     "type": "git",
     "url": "https://git.mytsl.cn/csh/tsl-devkit"
@@ -21,6 +20,10 @@
   "categories": [
     "Programming Languages"
   ],
+  "activationEvents": [
+    "onLanguage:tsl"
+  ],
+  "main": "./out/extension.js",
   "contributes": {
     "languages": [
       {
@@ -42,13 +45,30 @@
         "scopeName": "source.tsl",
         "path": "./syntaxes/tsl.tmLanguage.json"
       }
+    ],
+    "commands": [
+      {
+        "command": "extension.start",
+        "title": "Start TSL Language Server"
+      }
     ]
   },
+  "scripts": {
+    "vscode:prepublish": "npm run compile",
+    "compile": "tsc -p ./",
+    "watch": "tsc -watch -p ."
+  },
   "devDependencies": {
     "@vscode/vsce": "^3.5.0",
-    "typescript": "^5.8.3"
+    "typescript": "^5.8.3",
+    "@types/node": "^24.0.3",
+    "@types/vscode": "^1.101.0",
+    "prettier": "^3.5.3"
   },
   "engines": {
     "vscode": "^1.101.0"
+  },
+  "dependencies": {
+    "vscode-languageclient": "^9.0.1"
   }
 }
diff --git a/vscode/src/extension.ts b/vscode/src/extension.ts
new file mode 100644
index 0000000..abe62d7
--- /dev/null
+++ b/vscode/src/extension.ts
@@ -0,0 +1,66 @@
+import * as path from 'path'
+import * as vscode from 'vscode'
+import * as fs from 'fs'
+import {LanguageClient, LanguageClientOptions, ServerOptions, TransportKind} from 'vscode-languageclient/node'
+
+let client: LanguageClient
+
+function findSystemTslServer(): string | null {
+  const binary = process.platform === 'win32' ? 'tsl-server.exe' : 'tsl-server'
+  const pathDirs = process.env.PATH?.split(path.delimiter) || []
+
+  for (const dir of pathDirs) {
+    const fullPath = path.join(dir, binary)
+    if (fs.existsSync(fullPath)) {
+      return fullPath
+    }
+  }
+
+  return null
+}
+
+export function activate(context: vscode.ExtensionContext) {
+  const bundledPath = context.asAbsolutePath(
+    path.join('bin', process.platform === 'win32' ? 'tsl-server.exe' : 'tsl-server')
+  )
+
+  // 查找路径优先级：插件目录 -> 系统 PATH
+  let serverExe: string | null = null
+  if (fs.existsSync(bundledPath)) {
+    serverExe = bundledPath
+  } else {
+    serverExe = findSystemTslServer()
+  }
+
+  if (!serverExe) {
+    vscode.window.showErrorMessage(
+      "Cannot find tsl-server. Please install it globally or include it in your extension's server directory."
+    )
+    return
+  }
+
+  const serverOptions: ServerOptions = {
+    run: {command: serverExe, transport: TransportKind.stdio, args: ['--log=verbose', '--log-stderr']},
+    debug: {command: serverExe, transport: TransportKind.stdio}
+  }
+
+  const clientOptions: LanguageClientOptions = {
+    documentSelector: [{scheme: 'file', language: 'tsl'}],
+    synchronize: {
+      fileEvents: vscode.workspace.createFileSystemWatcher('**/*.tsl')
+    }
+  }
+
+  client = new LanguageClient(
+    'tslLanguageServer', // 客户端唯一ID
+    'TSL Language Server', // 用户可见名称
+    serverOptions,
+    clientOptions
+  )
+
+  client.start()
+}
+
+export function deactivate(): Thenable<void> | undefined {
+  return client ? client.stop() : undefined
+}
diff --git a/vscode/tsconfig.json b/vscode/tsconfig.json
new file mode 100644
index 0000000..29338b8
--- /dev/null
+++ b/vscode/tsconfig.json
@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "ES6",
+    "outDir": "out",
+    "rootDir": "src",
+    "sourceMap": true,
+    "strict": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}
diff --git a/vscode/tsl-devkit-1.4.0.vsix b/vscode/tsl-devkit-1.4.0.vsix
deleted file mode 100644
index baf7996..0000000
Binary files a/vscode/tsl-devkit-1.4.0.vsix and /dev/null differ
diff --git a/vscode/tsl-devkit-2.0.0.vsix b/vscode/tsl-devkit-2.0.0.vsix
new file mode 100644
index 0000000..cc166e5
Binary files /dev/null and b/vscode/tsl-devkit-2.0.0.vsix differ