Mischief is a venture capital fund run by four active or former founders who continue operating companies while investing, with founding partner Zach Perret serving as both CEO of Plaid and part-time GP—a dual role that's rarer than the typical ex-operator-turned-full-time-VC model. The firm systematically tracks potential founders before they start companies through structured dinners and relationship-building, while keeping the partnership intentionally small at just four partners despite strong portfolio companies like Figma, Coinbase, and Ramp.