* Add Second opinion and Founder builtin skills Second opinion has a fresh reviewer approve the plan and inspect the build, so whoever writes never approves their own work. Founder tests a business idea with simulated roles and a crowd of 100 simulated buyers and ends in a business plan card with a verdict. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tgvrj34NMnaqvtgvruYQZZ * Add Ship builtin skill for phased software work Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tgvrj34NMnaqvtgvruYQZZ --------- Co-authored-by: Claude <noreply@anthropic.com>