#TUI

The regex-based structural diff extractors landed and worked – then hit a ceiling regex was never going to clear. Here’s how coco’s diff pipeline actually moved onto tree-sitter: sharper structural context for commit messages, a layered regex fallback, lazy-loaded grammars – plus the bonus the same parser bought us, syntax-highlighted diffs in the Workstation.

After years of building terminal apps and a growing inability to justify my GitKraken subscription, I built a Claude Skill for TUI design. Here’s what’s in it, why I made it, and what I’m planning to build with it next.