Overview

A person who doesn't write code installed an agent framework that had just left the factory for 24 hours on their own machine. This book records what it looks like at that moment. On August 13, 2026, DeepSeek open-sourced the agent framework Harness (MIT license, released on the day of release). The official release has a subject of "it" from start to finish—how it was built, what kind of architecture it is. But this book replaces the subject back to "me": what is the first thing I do after installing it? Will it cost me money? Will it touch other files on my hard drive. Using DeepSeek's official VI · Designed and produced ⬇ by Huashu-Design Download 1080p60 MP4 (with sound effects) Four real-world capability segments, all corresponding to firsthand tests in the book: boot and load 129 plugins → permission approval before writing → PTC lets the model write programming tools directly (5 openings, 15 operations) → Creating Mode to build the 33rd tool count_chinese on site, finally dismantling the entire terminal into building blocks. Don't want to read the whole book? This 20-page editorial deck is a condensed version of the entire book: five chapters, four introductory questions, cost bills, 44 events, PTC, creative patterns, breaking down the structure—one conclusion per page, perfect for quick review or sharing. - ——The long message fed into the model's mind before every opening - ——dsh --profile web --dump-default-config export, line by line to see what it installed at startup -——Standard mode, PTC, and Creative mode each one, not a single event deleted -——19 steps, the toollist changed from 32 to 33 lines, the extra line was written by the model itself -——5 opening orchestration 15 operations, plus that counterintuitive account: fixed overhead actually increased by 9% -— all on npm, but not in the installation closure; "in the warehouse" does not mean "installed immediately" — 12,293 submissions / about 64 days, 683 Agent Notes, 4 incident reviews (including "100% coverage all green, editor crashes as soon as you log in") At the end of each section, there is a fixed section: — Taken from a rejected design proposal in the warehouse, answer "Why is there no X here?" - : Each concept is a technical definition + a daily analogy + where the analogy is distorted - : First-hand materials are logs you generated yourself, rejected plans, and archaeological accident reviews, not translations of published articles - : Can be used directly / installed yourself / Not used, tested item by item (~/.agents/skills read from zero configuration, the documentation won't tell you)

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