[K]--||-- forensic signal

Your keyboard is not dead yet.

KeySurgeon catches keyboard chatter, flags missed or suspicious key behavior during tests, and gives you a repair-first ladder before you replace the board.

See install steps See the signal View on GitHub
Windows MIT local JSON Rich + Textual --plain fallback

Readable verdict first

Chatter gets a verdict, not a blinking key.

Ordinary testers prove a key registers. KeySurgeon checks timing, names the fault, and tells you what to try next.

Compare keyboard tester. 
[K]--||--  KeySurgeon / test E

E [########....] 14/20

CHATTER DETECTED  E  35/100
This key is double-typing.

evidence:
  || re-press 31ms
  || 18 bounces in 240 presses
  || confidence: high

What to do, easiest first:
  1  software filter
  2  blow out debris
  3  clean contact
  4  hot-swap the switch

You do not need a new keyboard for this.

Sample diagnosis copy. Generated workflow, Rich, and Textual proof lives in the Signal tab.