ShortsFast addresses that wall by running the full production cycle autonomously: script generation, video assembly, and scheduled posting to YouTube Shorts and TikTok without manual intervention after the initial setup. The vendor describes the workflow as agent-driven — the system picks a niche and posts on a cadence you define. That autonomy is the value proposition, and it holds for high-volume, low-customization niches like daily motivation or finance tips. The ceiling appears when you need brand-specific tone, custom visual style, or granular control over individual videos. At that point the automation that saved you time becomes the thing blocking quality.