The blog says the collection had reached 244 tools and was still growing. Its new interface uses selectable tag clouds, allowing visitors to choose a JavaScript library, browser API or web API host and see the tools associated with it.
According to Simon Willison’s Weblog, the code analysis used tree-sitter to identify the JavaScript APIs, libraries and web API hosts used by each tool. The post describes the collection as a set of “vibe-coded tools,” and says Willison used remaining Fable 5.2 credits to help carry out the analysis and update.
The same source says the tag data includes “Built-in AI” among browser APIs and “@google/generative-ai” among the JavaScript libraries. The post does not identify what Fable 5.2 is or who provides it, leaving that part of the workflow unexplained.