simonwillison.net·Jul 16, 2026
Simon Willison's latest blog post discusses a newly open-sourced Grok CLI coding agent, highlighting a self-contained terminal renderer for Mermaid diagrams written in Rust, which he successfully experimented with in a browser using WebAssembly. The post includes a screenshot of the tool in action, illustrating its functionality.
The exploration of the Grok CLI coding agent's codebase reveals a Rust-based terminal renderer for Mermaid diagrams, which can be run in a browser using WebAssembly. This could be a valuable addition to your AI coding and productivity toolkit, enabling efficient visualization and manipulation of flowcharts directly within AI development environments.