perplexity-research — Brain-Augmented Web Research Convention: see conventions/quality.md for citation rules; every claim from web research lands with a verifiable citation, not a paraphrase. Convention: see conventions/brain-first.md for the lookup chain. This skill ENFORCES brain-first by sending brain context as part of the Perplexity prompt — the web search focuses on the delta between brain knowledge and current web state. What this does Combines existing brain knowledge with Perplexity's web search. The agent sends brain context about a topic into a Perplexity query; Perplexity searches…