ty-lsai is a command-line tool and library that extends the ty project with callHierarchy support for Language Server AI. It provides enhanced type analysis and LSP features for developers building or extending language servers.
In the Other dev tools space, ty-lsai takes a focused approach. It focuses on enabling advanced call hierarchy and type analysis for Language Server AI implementations. It is built as an open-source project for language server developers. ty-lsai is open source under the MIT license. ty-lsai is available on the command line.
Behind ty-lsai is 0ics-srls, and the product first shipped in 2025. Development happens publicly on GitHub with 19k stars and 107 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — ty-lsai occupies a relatively distinct niche. Key capabilities include call hierarchy support, LSP integration, and type analysis.
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