ABTI · MFSL
The Old Doctor
Others ask AI for new features. You ask it to explain the old code.
MFSL is “The Old Doctor”, one of the 16 ABTI types in DANGO: Micro (M), Fix (F), Specialist (S), Lark (L). Looks, listens, asks, then treats: one problem, understood all the way.
MFSL, letter by letter
| Dimension | How it is worked out |
|---|---|
| M · Micro | A turn is hands-off when the AI makes 8 or more tool calls in a row or sends out a subagent. More than 50% of your turns hands-off → H, otherwise M. |
| F · Fix | Lines written into new files ÷ all lines changed (added + removed). Over 50% → B, otherwise F. |
| S · Specialist | Of the 8 roles (a hidden role counts as one more), how many take at least 10% of the value. 3 or more → G, otherwise S. |
| L · Lark | Minutes worked between 20:00 and 8:00 local time ÷ all minutes worked. Over 50% → O, otherwise L. |
Best match: HBSL · Assembly-Line Boss
They start the line, you take its pulse.
How do I find out my type?
Install DANGO and keep using Claude Code or Codex as usual. It reads the work logs those tools already keep on your Mac, works out your four letters in a few seconds, and tells your ABTI story. How ABTI is worked out →
All 16 ABTI types
HBGLSerial FounderHBGONight-Shift ForemanHBSLAssembly-Line BossHBSOSleep-Money MogulHFGLThe LandlordHFGOER ChiefHFSLProperty ManagerHFSOFire ChiefMBGLThe ClientMBGOMidnight CEOMBSLHead CraftsmanMBSONight OverseerMFGLHovering HomeownerMFGOMidnight QA ChiefMFSLThe Old DoctorMFSOWatchmaker
DANGO is a free Mac menu bar app that tallies how much work Claude Code, Codex and other AI tools did for you, what it cost and what it's worth.
Or install from Terminal: curl -fsSL https://dangoai.org/install.sh | sh
Free · macOS 13+ · Windows 10+ (preview) · Runs on your computer · GitHub