cleanup-old-versions

Cleanup Old omc-lens Versions

This skill prunes stale omc-lens version directories from ~/.claude/plugins/cache/omc-lens/omc-lens/. Each plugin update creates a new version-stamped directory (e.g. 0.5.7/, 0.5.8/) without removing the previous ones, so they accumulate over time.

Always ask the user before deleting anything. Never delete the active version directory (the one currently targeted by the ~/.claude/hud/omc-lens.mjs symlink).

Step 1 — Detect active version

ACTIVE_PATH="$(readlink "$HOME/.claude/hud/omc-lens.mjs" 2>/dev/null || true)"
ACTIVE_VERSION="$(echo "$ACTIVE_PATH" | sed -n 's#.*/cache/omc-lens/omc-lens/\([^/]*\)/.*#\1#p')"
echo "ACTIVE_VERSION=$ACTIVE_VERSION"
echo "ACTIVE_PATH=$ACTIVE_PATH"

If ACTIVE_VERSION is empty, tell the user the symlink could not be resolved and stop — do not delete anything.

Step 2 — Enumerate inactive versions and compute reclaimable size

CACHE_ROOT="$HOME/.claude/plugins/cache/omc-lens/omc-lens"
INACTIVE=()
for dir in "$CACHE_ROOT"/*/; do
  name="$(basename "$dir")"
  [ "$name" = "$ACTIVE_VERSION" ] && continue
  INACTIVE+=("$name")
done
echo "Inactive versions: ${INACTIVE[*]:-<none>}"
if [ ${#INACTIVE[@]} -gt 0 ]; then
  du -sh "${INACTIVE[@]/#/$CACHE_ROOT/}" 2>/dev/null | awk '{print $1, $2}'
  TOTAL=$(du -sk "${INACTIVE[@]/#/$CACHE_ROOT/}" 2>/dev/null | awk '{sum+=$1} END {printf "%.1f MB\n", sum/1024}')
  echo "Total reclaimable: $TOTAL"
fi

If INACTIVE is empty, tell the user "Nothing to clean up. Active version is the only one in cache." and stop.

Step 3 — Ask the user to confirm

Use AskUserQuestion with this exact shape:

• Question: "Found N inactive omc-lens version directories totaling ~SIZE. The active version (vACTIVE_VERSION) will not be touched. Remove the inactive ones?"
• Options:
  1. Remove all inactive versions — Free the listed disk space
  2. Keep them — Cancel cleanup, do nothing

Substitute N, SIZE, and ACTIVE_VERSION with the values from Step 2.

If the user picks "Keep them" or any non-removal answer, stop without changes.

Step 4 — Remove inactive directories

Only if the user explicitly chose "Remove all inactive versions":

for v in "${INACTIVE[@]}"; do
  rm -rf "$CACHE_ROOT/$v" && echo "Removed $v"
done

Report the removed versions and remaining active version to the user.