I build AI agents that show their work. 我做 AI agent，
让每个结论都有据可查。

Next.js · WebGL · English / 中文Next.js · WebGL · 中英双语

backprop-viz

A 3D walkthrough of a GPT's backward pass. Every block sits where it sits in the forward pass but holds the gradient instead of the tensor. The numbers are computed live and checked against numerical derivatives.

GPT 反向传播的 3D 交互演示。每个方块的位置和前向传播时一样，装的却是梯度而不是张量。数字是实时算出来的，并用数值导数校验过。

Built on Brendan Bycroft's llm-viz.基于 Brendan Bycroft 的 llm-viz。

TypeScript · Godot · DeepSeek

Anima

Seven anime characters share a seaside town, and each one is its own LLM agent. Every tick they decide what to do next from what they need, who they remember and what they can see. Friendships, grudges and gossip come out of the interactions.

七个动漫角色住在同一个海边小镇，每个角色都是独立的 LLM agent。每个 tick，他们根据自己的需求、记得的人和眼前发生的事，决定下一步做什么；友谊、积怨和流言都在互动中自然出现。

Python · MCP serverPython · MCP 服务器

Stardew Anima

Lets an LLM play Stardew Valley the way a person does, through 28 intent-level tools for farming, fishing, foraging and talking to villagers. No screenshots, no vision.

让 LLM 像人一样玩星露谷物语：通过 28 个意图级工具种地、钓鱼、采集、和村民聊天。不截图，也不用视觉。

Three.js · one HTML file · playableThree.js · 单个 HTML 文件 · 可在线玩

BlockFire 方块火线

Minecraft meets first-person shooter: dig, build walls and hold off waves of zombies. Bullets break blocks, and zombies can't climb more than 1.2 blocks.

我的世界 × 第一人称射击：挖方块、搭工事、守住一波波僵尸。子弹能打碎方块，僵尸爬不上 1.2 格以上的落差。