Node Titles Text Filter is Drupal 7 module built as an experiment after Drupal Drinkup Moscow to check module building estimations.
This module provides new Input Filter to process markdown-style markup
[Optional link content](Note Title)
→<a href="/node/1">Optional link content</a>
[Node Title]
→<a href="/node/1">Node Title</a>
Initial version is created by @kalabro for no-exit.org project.
38 min between first and second commits instead of estimated 30 min.