{"slug": "how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop", "title": "How to Build an AI Agent from Scratch (It's Just a While Loop)", "summary": "A developer has published a walkthrough for building an AI agent from scratch in TypeScript using only a model API and a while loop, covering tool calling, parallel tool calls, and a bug that no existing framework can fix. The writeup argues that the core agent loop is simpler than the surrounding tooling suggests.", "body_md": "Build an AI agent from scratch in TypeScript with only a model API and a loop. Covers tool calling, parallel tool calls, and a bug no framework can fix.\n\nFor further actions, you may consider blocking this person and/or reporting abuse\n\nWe're a place where coders share, stay up-to-date and grow their careers.", "url": "https://wpnews.pro/news/how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop", "canonical_source": "https://dev.to/abhisek_mishra/how-to-build-an-ai-agent-from-scratch-its-just-a-while-loop-2c85", "published_at": "2026-10-04 08:03:36+00:00", "updated_at": "2026-10-04 08:12:10.708899+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "developer-tools", "large-language-models", "artificial-intelligence"], "entities": ["TypeScript"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop", "markdown": "https://wpnews.pro/news/how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop.md", "text": "https://wpnews.pro/news/how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop.txt", "jsonld": "https://wpnews.pro/news/how-to-build-an-ai-agent-from-scratch-it-s-just-a-while-loop.jsonld"}}