Workflow: reads query list from Google Sheet → fires parallel HTTP API calls to GPT-4o, Claude, Gemini, and Perplexity → Code node parses each response for target company mentions (name match, URL/domain patterns) → writes visibility data to Sheets dashboard (query, model, company cited, position, date) → runs weekly to track trends. Output: citation frequency by model and query, competitive mapping (which queries competitors win vs you), content gap identification, week-over-week trend. Full interactive demo at omnionlinestrategies.com/ai-discoverability-demo.