# Install astgen with Homebrew Generate AST in json format for JS/TS. Version 3.42.0 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:astgen ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install astgen ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:astgen - **Package manager:** Homebrew - **Package manager page:** - **Version:** 3.42.0 - **Source summary:** Generate AST in json format for JS/TS - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - astgen (cli) - astgen (alias) ## Dependencies - node ## Install behavior - Post-install hook: not defined - Bottle: available on all ## Freshness - Page generated: 2026-07-08 - Package-manager version: 3.42.0 - Local data: ok - Upstream repository: https://github.com/joernio/astgen - Upstream latest detected: v3.42.0 (current) - info: No package-manager update timestamp was available. ## Project history and usage astgen is a Joern-related AST generator package for producing JSON AST output for JavaScript and TypeScript. The original standalone repository is now archived and points to joernio/astgen-monorepo. ### Project history The original joernio/astgen repository describes the package as generating AST in JSON format for JavaScript and TypeScript. GitHub now marks that repository archived, and its README directs future work to joernio/astgen-monorepo. The replacement monorepo reframes astgen as a family of language-specific AST generators for the Joern code analysis platform. Its README lists ABAP, .NET, Go, JavaScript/TypeScript, Ruby, Rust, and Swift generators, each with its own build system, dependencies, tests, and release workflow. ### Adoption history Public adoption evidence is thin: the supplied facts show a Homebrew formula, while the original repository has a small public footprint. The package is best understood as a Joern ecosystem utility rather than a broad standalone developer tool. ### How it is used Package users invoke the astgen executable to produce AST JSON for JavaScript/TypeScript workflows. In current upstream development, users should expect language-specific directories and prefixed release tags in the monorepo rather than all work happening in the archived standalone repository. ### Why package nerds care The interesting package-manager detail is the repository transition: a Homebrew package points at a historical standalone tool, while upstream now collects multiple AST generators under one monorepo with per-language releases and checksums. That makes source provenance and release-tag selection more important than the package's public popularity. ### Timeline - 2026: joernio/astgen was archived and its README directed users to joernio/astgen-monorepo. - 2026: astgen-monorepo README documents independently versioned language generators and prefixed release tags. ### Related projects - Joern is the code analysis platform named by the monorepo README as the consumer context for the AST generators. - javascript-astgen in the monorepo is the closest successor to the standalone JS/TS astgen package. - Other monorepo siblings include abap-astgen, dotnet-astgen, go-astgen, ruby-astgen, rust-astgen, and swift-astgen. ### Sources - - - source_facts.package-manager ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** astgen - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [node](https://www.automicvault.com/pkg/brew/node/) - Runtime dependency declared by Homebrew. - [joern](https://www.automicvault.com/pkg/brew/joern/) - Popular package that depends on this formula. - [ast-grep](https://www.automicvault.com/pkg/brew/ast-grep/) - Shares av.db curated category or tags: ast, cli, developer-tools. - [cargo-llvm-lines](https://www.automicvault.com/pkg/brew/cargo-llvm-lines/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [cargo-public-api](https://www.automicvault.com/pkg/brew/cargo-public-api/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [castxml](https://www.automicvault.com/pkg/brew/castxml/) - Shares av.db curated category or tags: ast, cli, code-analysis, developer-tools. - [clang-include-graph](https://www.automicvault.com/pkg/brew/clang-include-graph/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [clang-uml](https://www.automicvault.com/pkg/brew/clang-uml/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [cloc](https://www.automicvault.com/pkg/brew/cloc/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [cppinsights](https://www.automicvault.com/pkg/brew/cppinsights/) - Shares av.db curated category or tags: cli, code-analysis, developer-tools. - [generate-json-schema](https://www.automicvault.com/pkg/brew/generate-json-schema/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, developer, developer-tools, generate, json. - [json2ts](https://www.automicvault.com/pkg/brew/json2ts/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, code, developer, developer-tools, json. ## Combined YAML source View the package source record on GitHub. [combined/astgen.yml](https://github.com/automic-vault/db/blob/main/combined/astgen.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - cross-ecosystem install command graph