From 1479892e7ba6b4c522e4805715b65823d9c0a4cc Mon Sep 17 00:00:00 2001
From: "killua.z" <abdussametersoylu@gmail.com>
Date: Tue, 5 May 2026 11:27:48 +0400
Subject: [PATCH] chore: update todo.

---
 TODO.md | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/TODO.md b/TODO.md
index e4b96d5..46ec87e 100644
--- a/TODO.md
+++ b/TODO.md
@@ -46,12 +46,38 @@ instead of an action doing it.
 # TODO 7: Defaults/Implicits
 If given, an arguments default store value could be changed. If nothing was given use that value instead.
 
-# TODO 8: Validators
+# TODO 8: Validators | DONE
 If given, validate the argument before passing to the storage or action. If fail, let user decide fail loud or fail skip. 
 
 # TODO 9: Subcommand/Subactions
 Implement subcommand support. Users should be able to define subactions to the higher level action. For example, 
 ```cpp
-parser.add_argument<std::string>(
-    {{ShortArgument, "l"}, {LongArgument, "list"}, {Action, list_files}, {HelpText, "Lists files in the directory"}});
+parser.add_argument(
+    {{ShortArgument, "g"}, {LongArgument, "get"}, {Action, get_}, {HelpText, "Gets <files, system_info, status>"}}
+);
+parser.add_argument(
+    {{BaseArgument, "g"}, {ShortArgument, "f"}, {LongArgument, "files"}, {Action, get_files}, {HelpText, "Gets files"}}
+);
+...
+```
+
+# TODO 10: Reference capture | DONE
+Reference capturing. 
+```cpp
+parser.add_argument<int>({
+    {ShortArgument, "c"},
+    {HelpText, "capture value"},
+    {Reference, &captured_value},
+});
+```
+
+# TODO 11: Builder | DONE
+Implement type safe logic enforcing argument builder; 
+```cpp
+argument::start()
+    .short_argument("e")
+    .long_argument("echo")
+    .help_text("Echo the parsed value.")
+    .action(echo)
+    .build(parser);
 ```