pre-mortem plugin

Use for a pre-mortem, or before committing to a plan, launch or migration: "what could go wrong?", "stress test this plan", "how might this fail?", "risks before we ship". Assumes failure, lists causes, ranks them and sets mitigations. Skip for explaining a failure that already happened.

Commands

How to install the pre-mortem 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 pre-mortem@ai-agent-skills

Update, turn off or remove

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

pre-mortem plugin questions

How do I install the pre-mortem plugin?

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

How do I update or remove the pre-mortem plugin?

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