The Claude Code leak confirmed Opus 4.7 is coming. That's the least interesting thing in 512K lines of source code. The same leak revealed Capybara. Internal codename for Claude Mythos. A new model tier above Opus entirely. Opus 4.7 is the next incremental upgrade in the 4.x line. Capybara sits above it. Fortune reported Anthropic described it as the most capable model they've ever built. Cybersecurity stocks dropped 4-7% when the leaked capability descriptions went public. Here's the…