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Curated tech Twitter/X posts on AI, startups, and product development—signal without the doomscroll, updated on weekdays.
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5 design patterns for long-running agents: 1. Design your prompts carefully. Keep system instructions and tool definitions at the top and move dynamic memories and runtime data to the end. This enables prompt caching, cutting costs and latency. 2. Move any learnings on your harness to the background. Always reply to the user first, then process memories asynchronously. You never want the harness to slow user interactions. 3. Preserve files, installed tools, and unfinished work between…
5 design patterns for long-horizon agent harness Any agent can look brilliant on a one-shot task. Give it a week of real work and it starts to fall apart. "Long horizon" means the agent keeps going across days and dozens of sessions instead of