diff --git a/message_handler.hh b/message_handler.hh
deleted file mode 100644
index 1af0fb8d..00000000
--- a/message_handler.hh
+++ /dev/null
@@ -1,265 +0,0 @@
-/* Copyright 2017-2018 ccls Authors
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-==============================================================================*/
-
-#pragma once
-
-#include "lsp.h"
-#include "query.h"
-
-#include <functional>
-#include <memory>
-#include <optional>
-#include <unordered_map>
-#include <vector>
-
-struct CompletionManager;
-struct Config;
-struct GroupMatch;
-struct VFS;
-struct IncludeComplete;
-struct MultiQueueWaiter;
-struct Project;
-struct DB;
-struct WorkingFile;
-struct WorkingFiles;
-
-namespace ccls {
-namespace pipeline {
-void Reply(lsRequestId id, const std::function<void(Writer &)> &fn);
-void ReplyError(lsRequestId id, const std::function<void(Writer &)> &fn);
-}
-
-struct EmptyParam {
-  bool placeholder;
-};
-struct TextDocumentParam {
-  lsTextDocumentIdentifier textDocument;
-};
-struct DidOpenTextDocumentParam {
-  lsTextDocumentItem textDocument;
-};
-
-struct TextDocumentPositionParam {
-  lsTextDocumentIdentifier textDocument;
-  lsPosition position;
-};
-
-struct RenameParam {
-  lsTextDocumentIdentifier textDocument;
-  lsPosition position;
-  std::string newName;
-};
-
-// code*
-struct CodeActionParam {
-  lsTextDocumentIdentifier textDocument;
-  lsRange range;
-  struct Context {
-    std::vector<lsDiagnostic> diagnostics;
-  } context;
-};
-
-// completion
-enum class lsCompletionTriggerKind {
-  Invoked = 1,
-  TriggerCharacter = 2,
-  TriggerForIncompleteCompletions = 3,
-};
-struct lsCompletionContext {
-  lsCompletionTriggerKind triggerKind = lsCompletionTriggerKind::Invoked;
-  std::optional<std::string> triggerCharacter;
-};
-struct lsCompletionParams : TextDocumentPositionParam {
-  lsCompletionContext context;
-};
-enum class lsCompletionItemKind {
-  Text = 1,
-  Method = 2,
-  Function = 3,
-  Constructor = 4,
-  Field = 5,
-  Variable = 6,
-  Class = 7,
-  Interface = 8,
-  Module = 9,
-  Property = 10,
-  Unit = 11,
-  Value = 12,
-  Enum = 13,
-  Keyword = 14,
-  Snippet = 15,
-  Color = 16,
-  File = 17,
-  Reference = 18,
-  Folder = 19,
-  EnumMember = 20,
-  Constant = 21,
-  Struct = 22,
-  Event = 23,
-  Operator = 24,
-  TypeParameter = 25,
-};
-enum class lsInsertTextFormat {
-  PlainText = 1,
-  Snippet = 2
-};
-struct lsCompletionItem {
-  std::string label;
-  lsCompletionItemKind kind = lsCompletionItemKind::Text;
-  std::string detail;
-  std::optional<std::string> documentation;
-  std::string sortText;
-  std::optional<std::string> filterText;
-  std::string insertText;
-  lsInsertTextFormat insertTextFormat = lsInsertTextFormat::PlainText;
-  lsTextEdit textEdit;
-  std::vector<lsTextEdit> additionalTextEdits;
-
-  std::vector<std::string> parameters_;
-  int score_;
-  unsigned priority_;
-  bool use_angle_brackets_ = false;
-};
-
-// formatting
-struct FormattingOptions {
-  int tabSize;
-  bool insertSpaces;
-};
-struct DocumentFormattingParam {
-  lsTextDocumentIdentifier textDocument;
-  FormattingOptions options;
-};
-struct DocumentOnTypeFormattingParam {
-  lsTextDocumentIdentifier textDocument;
-  lsPosition position;
-  std::string ch;
-  FormattingOptions options;
-};
-struct DocumentRangeFormattingParam {
-  lsTextDocumentIdentifier textDocument;
-  lsRange range;
-  FormattingOptions options;
-};
-
-// workspace
-enum class FileChangeType {
-  Created = 1,
-  Changed = 2,
-  Deleted = 3,
-};
-struct DidChangeWatchedFilesParam {
-  struct Event {
-    lsDocumentUri uri;
-    FileChangeType type;
-  };
-  std::vector<Event> changes;
-};
-struct DidChangeWorkspaceFoldersParam {
-  struct Event {
-    std::vector<WorkspaceFolder> added, removed;
-  } event;
-};
-struct WorkspaceSymbolParam {
-  std::string query;
-};
-
-// TODO llvm 8 llvm::unique_function
-template <typename Res>
-using Callback = std::function<void(Res*)>;
-
-struct ReplyOnce {
-  lsRequestId id;
-  template <typename Res> void operator()(Res &result) const {
-    if (id.Valid())
-      pipeline::Reply(id, [&](Writer &w) { Reflect(w, result); });
-  }
-  template <typename Err> void Error(Err &err) const {
-    if (id.Valid())
-      pipeline::ReplyError(id, [&](Writer &w) { Reflect(w, err); });
-  }
-};
-
-struct MessageHandler {
-  DB *db = nullptr;
-  Project *project = nullptr;
-  VFS *vfs = nullptr;
-  WorkingFiles *working_files = nullptr;
-  CompletionManager *clang_complete = nullptr;
-  IncludeComplete *include_complete = nullptr;
-
-  llvm::StringMap<std::function<void(Reader &)>> method2notification;
-  llvm::StringMap<std::function<void(Reader &, ReplyOnce &)>> method2request;
-
-  MessageHandler();
-  void Run(InMessage &msg);
-  QueryFile *FindFile(ReplyOnce &reply, const std::string &path,
-                      int *out_file_id = nullptr);
-
-private:
-  void Bind(const char *method, void (MessageHandler::*handler)(Reader &));
-  template <typename Param>
-  void Bind(const char *method, void (MessageHandler::*handler)(Param &));
-  void Bind(const char *method,
-            void (MessageHandler::*handler)(Reader &, ReplyOnce &));
-  template <typename Param>
-  void Bind(const char *method,
-            void (MessageHandler::*handler)(Param &, ReplyOnce &));
-
-  void ccls_call(Reader &, ReplyOnce &);
-  void ccls_fileInfo(TextDocumentParam &, ReplyOnce &);
-  void ccls_info(EmptyParam &, ReplyOnce &);
-  void ccls_inheritance(Reader &, ReplyOnce &);
-  void ccls_member(Reader &, ReplyOnce &);
-  void ccls_navigate(Reader &, ReplyOnce &);
-  void ccls_reload(Reader &);
-  void ccls_vars(Reader &, ReplyOnce &);
-  void exit(EmptyParam &);
-  void initialize(Reader &, ReplyOnce &);
-  void shutdown(EmptyParam &, ReplyOnce &);
-  void textDocument_codeAction(CodeActionParam &, ReplyOnce &);
-  void textDocument_codeLens(TextDocumentParam &, ReplyOnce &);
-  void textDocument_completion(lsCompletionParams &, ReplyOnce &);
-  void textDocument_definition(TextDocumentPositionParam &, ReplyOnce &);
-  void textDocument_didChange(TextDocumentDidChangeParam &);
-  void textDocument_didClose(TextDocumentParam &);
-  void textDocument_didOpen(DidOpenTextDocumentParam &);
-  void textDocument_didSave(TextDocumentParam &);
-  void textDocument_documentHighlight(TextDocumentPositionParam &, ReplyOnce &);
-  void textDocument_documentLink(TextDocumentParam &, ReplyOnce &);
-  void textDocument_documentSymbol(Reader &, ReplyOnce &);
-  void textDocument_foldingRange(TextDocumentParam &, ReplyOnce &);
-  void textDocument_formatting(DocumentFormattingParam &, ReplyOnce &);
-  void textDocument_hover(TextDocumentPositionParam &, ReplyOnce &);
-  void textDocument_implementation(TextDocumentPositionParam &, ReplyOnce &);
-  void textDocument_onTypeFormatting(DocumentOnTypeFormattingParam &,
-                                     ReplyOnce &);
-  void textDocument_rangeFormatting(DocumentRangeFormattingParam &,
-                                    ReplyOnce &);
-  void textDocument_references(Reader &, ReplyOnce &);
-  void textDocument_rename(RenameParam &, ReplyOnce &);
-  void textDocument_signatureHelp(TextDocumentPositionParam &, ReplyOnce &);
-  void textDocument_typeDefinition(TextDocumentPositionParam &, ReplyOnce &);
-  void workspace_didChangeConfiguration(EmptyParam &);
-  void workspace_didChangeWatchedFiles(DidChangeWatchedFilesParam &);
-  void workspace_didChangeWorkspaceFolders(DidChangeWorkspaceFoldersParam &);
-  void workspace_executeCommand(Reader &, ReplyOnce &);
-  void workspace_symbol(WorkspaceSymbolParam &, ReplyOnce &);
-};
-
-void EmitSkippedRanges(WorkingFile *wfile, QueryFile &file);
-
-void EmitSemanticHighlight(DB *db, WorkingFile *wfile, QueryFile &file);
-} // namespace ccls
diff --git a/src/messages/initialize.cc b/src/messages/initialize.cc
index cd51cc4e..b523ebc2 100644
--- a/src/messages/initialize.cc
+++ b/src/messages/initialize.cc
@@ -43,7 +43,7 @@ MAKE_REFLECT_TYPE_PROXY(TextDocumentSyncKind)
 
 struct ServerCap {
   struct TextDocumentSyncOptions {
-    bool openClose = false;
+    bool openClose = true;
     TextDocumentSyncKind change = TextDocumentSyncKind::Incremental;
     bool willSave = false;
     bool willSaveWaitUntil = false;