Per-Section Briefs: How to Stop AI Agents Losing the Plot at 2000 Words

In March 2025 I wired up my first long-form content agent. One prompt. A 2000 word target. A list of seven H2s pasted in at the top. The first 600 words read fine. By word 1200 the model had quietly forgotten the original thesis. By word 1800 it was paraphrasing the introduction back at me, just with worse vocabulary. That article never shipped. TLDR Instead of asking an LLM to write a 2000 word article in one shot, give each H2 section its own brief, generate the sections in parall...