five-whys
80 / 100 · Low risk
Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.
Investigate the root cause of a recurring or systemic defect across a series of incidents, not a single one. Use on the third recurrence, or when someone asks 'why again?', 'five whys', 'fix the root'. Skip for one or two ordinary cases, an already proven simple cause, or a one-off external outage. Triggers: /five-whys, five whys, fix the root.
What this skill can do
Downloads and installs other software
Runs commands on your computer
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'five-whys' ] || [ -L ~/.agents/skills/'five-whys' ]; then echo 'A skill folder named five-whys already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/tonydzi/second-brain-starter-kit' "$d" && git -C "$d" checkout --quiet '1e330b279e183cf0eef80bf6c6cb7e3e16a4e1bb' -- 'skills/five-whys' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/five-whys' ~/.agents/skills/'five-whys' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'five-whys' ~/.claude/skills/'five-whys' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
[](https://zalavijaysinh.github.io/skilltrust/repos/tonydzi/second-brain-starter-kit/)
Score history
| Date | Version | Score |
|---|---|---|
| 2026-11-08 | 1e330b2 | 80 |