Define 3 to 5 LinkedIn content pillars consistent with the user's positioning, plus 5 to 10 post topics for each pillar. Pillars are the recurring themes that make a creator recognizable. Use after the user has defined their niche, or when their content feels random and they want a system. Requires the Taplio MCP, which grounds the pillars in which existing themes already perform and pulls live inspiration for the niche.