five-whys plugin

Use for the 5 Whys, or when the user wants the root cause of a failure: "why did this happen?", "this keeps breaking", "write the postmortem", "find the real cause". Asks why repeatedly with evidence at each step, then sets countermeasures. Skip for one-off typos or when the cause is already proven.

Commands

How to install the five-whys plugin

Run both commands inside Claude Code. The first adds the marketplace once; the second installs the plugin.

Claude Code

/plugin marketplace add ysskrishna/ai-agent-skills
/plugin install five-whys@ai-agent-skills

Update, turn off or remove

Update the plugin (shell): claude plugin update five-whys@ai-agent-skills
Refresh the marketplace: /plugin marketplace update ai-agent-skills
Turn it off for now: /plugin disable five-whys@ai-agent-skills
Remove it: /plugin uninstall five-whys@ai-agent-skills

five-whys plugin questions

How do I install the five-whys plugin?

In Claude Code run /plugin marketplace add ysskrishna/ai-agent-skills, then /plugin install five-whys@ai-agent-skills.

How do I update or remove the five-whys plugin?

Update it with claude plugin update five-whys@ai-agent-skills in your shell, or from the Installed tab of /plugin. Remove it with /plugin uninstall five-whys@ai-agent-skills.