The summary table has five columns:

ColumnMeaning
COVCoverage percentage for the file
FILEPath relative to the project root
LINESTotal lines in the file
RELEVANTLines Six considers coverable (after filtering out boilerplate)
MISSEDRelevant lines with zero executions

Rows are sorted worst-first so the files that need attention are at the top.

Colors

  • Green means coverage is at or above the threshold (default 90%).
  • Red means coverage is below the threshold.
  • Yellow means the file has 0 relevant lines, so every executable line was filtered out (all defmodule, use, alias, end, etc.). There is nothing to cover, so Six cannot score it. This is normal for files that are purely structural, like a module that only defines a struct or delegates.