Polars: Blazingly fast DataFrames in Rust, Python, Node.js, R and SQL
Esprima-compatible implementation of the Mozilla JS Parser API
GraphQL ASTs
Provides a front end for Javascript / Typescript AST generation by Babel parser with TyphonJS plugin support.
AI coding assistant skill (Claude Code, Codex, Gemini CLI, Kimi Code, GitHub Copilot CLI, Aider, OpenCode, OpenClaw) - turn any folder of code, docs, papers, images, or audio/video transcripts into a queryable knowledge graph
IBM Generative AI Node.js SDK (Tech Preview)
Replace AST node by rules
transform the ast on a recursive walk
A Pulumi package for creating and managing Tailscale cloud resources.
A decent CSS parser
ctxloom — The Universal Code Context Engine. A local-first MCP server providing intelligent code context via hybrid Vector + AST + Graph search with Skeletonization (92% token reduction).
AST-based Claude Code and Codex model router with token-cost estimates, CI policy checks, and explainable AI coding-agent model selection.
Pseudo AST that contains data with its positions attached.
CosmWasm TypeScript AST generation
JavaScript CST Implementation
Parse equations to an AST
Reactivity and dependency graph for Deepnote notebooks
remark plugin to transform remark syntax tree (mdast) to Slate document tree, and vice versa. Made for WYSIWYG markdown editor.
Abstract Syntax Tree (AST) Query Engine
AST support for basketry parsers
A better AST for CoffeeScript, inspired by CoffeeScriptRedux.
An AST-based pattern checker for JavaScript.
Utilities for handling *.{gjs,gts} files
Tools working with HTML-like nodes via unified-latex ASTs