brainiac v0.20.42

Changed

• brain doctor says whether Claude Desktop runs the current Brainiac.
  A new row compares each running brain-mcp server with the engine install
  time: servers started before an update still serve the old code, and the
  row says to quit and reopen Claude Desktop. The Cowork plugin-store rows
  now compare the installed skill TEXT with the bundles staged for the
  current version, so a plugin that Cowork's lagging marketplace labels with
  an older version reads current when its text matches, and a real
  difference names the skills and the steps. brainiac-manager missing from
  Cowork is reported as optional. The release's last step prints only the
  Desktop steps these rows ask for.

Fixed

• Spreadsheet tables no longer carry thousands of empty columns. A
  sheet's used range can run far wider than its data (16,147 columns on one
  real file), and every row carried the blank columns as | | padding: a
  97K-character sheet became a 9 MB note. The shared table renderer for
  xlsx, pptx and docx now drops a column that is blank in every row, as it
  already dropped blank rows. Two real files measured 2,124,686 -> 352,631
  and 1,258,807 -> 27,532 characters with identical non-empty cells. Notes
  ingested before this release keep their padding; new and changed files
  are compact.