JSAT provides a command-line shell and SDK for indexing codebases once and querying them indefinitely using various LLMs. It supports Claude, GPT, Ollama and includes features for static analysis, graph-based visualization, blast-radius calculations, and security investigations. Primarily aimed at developers needing deep codebase intelligence.
In the Developer Tools space, JSAT takes a focused approach. It focuses on understanding and querying large codebases with AI without repeated context loading or manual analysis. It is built as an open-source project for developers. JSAT is open source under the MIT license. JSAT is available on the command line.
It is developed by JaySoft AI Tools, and it first shipped in 2026. The project is developed in the open on GitHub with 92 commits in the last 90 days. Among its 5 catalogued features are Codebase Indexing, Persistent Querying, and LLM Integration. It exposes integrations via an MCP server and a public API.
Summary written by a language model from the project’s public pages.
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