Kimi K2-0905 Deep Dive: 256 k Context, 100 % Tool Accuracy, and the Death of “Manual Workflow” TL;DR: Kimi K2-0905 pushes the context window to 256 k, hardens front-end generation, and bakes automatic retry into the decoder. If you can describe the goal in plain English, it ships the code, runs the tests, and deploys the page—often before your coffee is cold. What exact problem does this article solve? Reader question: “I’ve read K2 upgraded to 256 k and claims 100 % tool-call accuracy—what does that feel like in real work, and how do I migrate my Claude-Code repo without …