diff --git a/src/Project.zig b/src/Project.zig
index 60ed0e9..682fbcc 100644
--- a/src/Project.zig
+++ b/src/Project.zig
@@ -1030,28 +1030,30 @@ fn send_completion_item(to: tp.pid_ref, file_path: []const u8, row: usize, col:
     const insert = textEdit_insert orelse return error.InvalidMessageField;
     const replace = textEdit_replace orelse return error.InvalidMessageField;
     return to.send(.{
-        "completion_item",
-        file_path,
-        row,
-        col,
-        is_incomplete,
-        label,
-        label_detail,
-        label_description,
-        kind,
-        detail,
-        documentation,
-        sortText,
-        insertTextFormat,
-        textEdit_newText,
-        insert.start.line,
-        insert.start.character,
-        insert.end.line,
-        insert.end.character,
-        replace.start.line,
-        replace.start.character,
-        replace.end.line,
-        replace.end.character,
+        "cmd", "add_completion", .{
+            file_path,
+            row,
+            col,
+            is_incomplete,
+            label,
+            label_detail,
+            label_description,
+            kind,
+            detail,
+            documentation,
+            documentation_kind,
+            sortText,
+            insertTextFormat,
+            textEdit_newText,
+            insert.start.line,
+            insert.start.character,
+            insert.end.line,
+            insert.end.character,
+            replace.start.line,
+            replace.start.character,
+            replace.end.line,
+            replace.end.character,
+        },
     }) catch error.ClientFailed;
 }
 
diff --git a/src/command.zig b/src/command.zig
index e2b5ef4..e7e0829 100644
--- a/src/command.zig
+++ b/src/command.zig
@@ -39,6 +39,7 @@ pub const ArgumentType = enum {
     string,
     integer,
     float,
+    boolean,
     object,
     array,
 };
diff --git a/src/tui/editor.zig b/src/tui/editor.zig
index 8967026..64a5f7d 100644
--- a/src/tui/editor.zig
+++ b/src/tui/editor.zig
@@ -5476,6 +5476,14 @@ pub const Editor = struct {
         self.need_render();
     }
 
+    pub fn add_completion(self: *Self, row: usize, col: usize, is_incomplete: bool, msg: tp.message) Result {
+        _ = self;
+        _ = row;
+        _ = col;
+        _ = is_incomplete;
+        _ = msg;
+    }
+
     pub fn select(self: *Self, ctx: Context) Result {
         var sel: Selection = .{};
         if (!try ctx.args.match(.{ tp.extract(&sel.begin.row), tp.extract(&sel.begin.col), tp.extract(&sel.end.row), tp.extract(&sel.end.col) }))
diff --git a/src/tui/mainview.zig b/src/tui/mainview.zig
index b68e273..e0c531e 100644
--- a/src/tui/mainview.zig
+++ b/src/tui/mainview.zig
@@ -726,6 +726,50 @@ const cmds = struct {
     }
     pub const add_diagnostic_meta: Meta = .{ .arguments = &.{ .string, .string, .string, .string, .integer, .integer, .integer, .integer, .integer } };
 
+    pub fn add_completion(self: *Self, ctx: Ctx) Result {
+        var file_path: []const u8 = undefined;
+        var row: usize = undefined;
+        var col: usize = undefined;
+        var is_incomplete: bool = undefined;
+
+        if (!try ctx.args.match(.{
+            tp.extract(&file_path),
+            tp.extract(&row),
+            tp.extract(&col),
+            tp.extract(&is_incomplete),
+            tp.more,
+        })) return error.InvalidAddDiagnosticArgument;
+        file_path = project_manager.normalize_file_path(file_path);
+        if (self.get_active_editor()) |editor| if (std.mem.eql(u8, file_path, editor.file_path orelse ""))
+            try editor.add_completion(row, col, is_incomplete, ctx.args);
+    }
+    pub const add_completion_meta: Meta = .{
+        .arguments = &.{
+            .string, // file_path
+            .integer, // row
+            .integer, // col
+            .boolean, // is_incomplete
+            .string, // label
+            .string, // label_detail
+            .string, // label_description
+            .integer, // kind
+            .string, // detail
+            .string, // documentation
+            .string, // documentation_kind
+            .string, // sortText
+            .integer, // insertTextFormat
+            .string, // textEdit_newText
+            .integer, // insert.begin.row
+            .integer, // insert.begin.col
+            .integer, // insert.end.row
+            .integer, // insert.end.col
+            .integer, // replace.begin.row
+            .integer, // replace.begin.col
+            .integer, // replace.end.row
+            .integer, // replace.end.col
+        },
+    };
+
     pub fn rename_symbol_item(self: *Self, ctx: Ctx) Result {
         const editor = self.get_active_editor() orelse return;
         // because the incoming message is an array of Renames, we manuallly