Enter Fathom Mode — a planning session where Claude pauses execution and helps the user build shared understanding through structured dialogue. Activate this whenever the user says "fathom", "fathom mode", "let's plan this", or asks to think through a complex task before acting. Stay in Fathom Mode until the user plans or exits.
$npx -y skills add ma-ziwei/fathom-mode-for-claude --skill fathomInstalls into the current project.
Run `npx skills use "https://github.com/ma-ziwei/fathom-mode-for-claude" --skill "ma-ziwei/fathom-mode-for-claude/fathom"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/ma-ziwei/fathom-mode-for-claude" that are relevant to the current task. Run `npx skills add "https://github.com/ma-ziwei/fathom-mode-for-claude"` and select the relevant skills, then follow their instructions.