skills

It's not DNS / There's no way it's DNS / It was DNS. Diagnose and troubleshoot DNS issues including delegation verification, record conflicts, authoritative vs local DNS comparison, and SPF validation. Use when encountering NXDOMAIN errors for URLs that should exist, verifying DNS delegation is correct, checking for conflicting DNS records, comparing what authoritative nameservers say vs local resolvers, or validating SPF records for email deliverability.

Produce polished, self-contained HTML design memos with Tufte-inspired editorial layout and scrollytelling interaction. This is the default output format for any plan, design, architecture proposal, implementation approach, decision record, or review document. For simple plans, ask the user whether they prefer plain text; default to HTML for non-trivial plans.