Owners Delusion Check
Make sure to use this skill whenever a team is about to invest engineering effort into a feature whose impact will be invisible to users, a guaranteed-loser micro-optimization is proposed, or the cost of measuring exceeds the cost of the feature itself — even if the request is about 'experimentation' or 'feature planning' rather than explicitly about over-measurement.
Install
Run the one-liner to fetch and unpack the skill into your Claude Code skills directory:
curl -sL https://skill.broker/skills/stewart-butterfield/owners-delusion-check.skill -o /tmp/owners-delusion-check.skill && \
unzip -o /tmp/owners-delusion-check.skill -d ~/.claude/skills/owners-delusion-check/
Manual install
Download the .skill file above, then unzip it into ~/.claude/skills/owners-delusion-check/.