# Everything Claude Code Language Ecosystems: 12 Supported Languages and Frameworks > Explore the Everything Claude Code project supporting 12 language ecosystems like TypeScript, Python, Go, and Java. Discover dedicated agents, rule sets, and framework skills for enhanced code review. - Repository: [Affaan Mustafa/everything-claude-code](https://github.com/affaan-m/everything-claude-code) - Tags: support - Published: 2026-03-20 --- **Everything Claude Code supports 12 distinct programming language ecosystems—including TypeScript, Python, Go, Java, Kotlin, C++, Rust, Swift, PHP, Perl, and Shell—each providing dedicated reviewer agents, immutable rule sets in `rules//`, and framework-specific skills.** Everything Claude Code (ECC) is an open-source Claude Code extension maintained in the `affaan-m/everything-claude-code` repository that structures AI-assisted development through specialized language support. According to the changelog entry for **v1.9.0**, the project expanded to cover 12 ecosystems by adding new rules for Java, PHP, Perl, Kotlin/Android/KMP, C++, and Rust alongside existing TypeScript, Python, Go, and common rule sets. ## The 12 Language Ecosystems Supported by Everything Claude Code Each ecosystem in ECC is backed by three core components: **language-specific agents** (reviewers), **immutable rule directories**, and **framework-oriented skills**. The supported ecosystems include: - **TypeScript / JavaScript** — [`agents/typescript-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/typescript-reviewer.md), `rules/typescript/`, `skills/coding-standards/` - **Python** — [`agents/python-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/python-reviewer.md), `rules/python/`, `skills/python-patterns/` - **Go** — [`agents/go-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/go-reviewer.md), `rules/golang/`, `skills/golang-patterns/` - **Java / Spring Boot** — [`agents/java-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/java-reviewer.md), [`agents/java-build-resolver.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/java-build-resolver.md), `rules/java/`, `skills/springboot-patterns/` - **Kotlin / Android & KMP** — [`agents/kotlin-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/kotlin-reviewer.md), `rules/kotlin/`, `skills/kotlin-patterns/` - **C++** — [`agents/cpp-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/cpp-reviewer.md), `rules/cpp/`, `skills/cpp-coding-standards/` - **Rust** — [`agents/rust-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/rust-reviewer.md), `rules/rust/`, `skills/rust-patterns/` - **PHP** — `rules/php/`, `skills/php-patterns/` (rules and skills available; dedicated agent pending) - **Perl** — `rules/perl/`, `skills/perl-patterns/` - **Swift** — `rules/swift/`, `skills/swift-actor-persistence/`, `skills/swift-protocol-di-testing/`, `skills/swift-concurrency-6-2/` - **Shell / Bash** — Implicit support via `agents/bash-reviewer` hooks and installation scripts including [`install.sh`](https://github.com/affaan-m/everything-claude-code/blob/main/install.sh) and [`scripts/lib/package-manager.js`](https://github.com/affaan-m/everything-claude-code/blob/main/scripts/lib/package-manager.js) ## Core Components of Language Support ### Language-Specific Agents (Reviewers) Every major ecosystem includes a dedicated **reviewer agent** stored in the `agents/` directory. These agents run static analysis, formatting checks, and test suites. For example, [`agents/rust-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/rust-reviewer.md) executes `cargo check`, `cargo clippy`, and `cargo test` (lines 10‑12) when invoked. ### Immutable Rule Sets Rules enforcing secure, performant coding standards live in `rules//` directories. These files are designed to be immutable and language-specific—TypeScript rules reside in `rules/typescript/`, while Go standards are defined in `rules/golang/`. PHP and Perl currently offer rule sets without dedicated agents. ### Framework-Oriented Skills Skills provide workflow guidance for specific frameworks and patterns. The repository includes `skills/springboot-patterns/` for Java Spring Boot development, `skills/python-patterns/` for Pythonic architecture, and `skills/swift-concurrency-6-2/` for Swift's latest concurrency models. ## Working with Language-Specific Components ### Running a TypeScript Reviewer Invoke the language reviewer directly from the Claude Code command palette to validate changes against the TypeScript rule set: ```bash # Review a newly edited TypeScript file /everything-claude-code:plan "Add validation to user input" # After implementation, ask the reviewer to check the changes /typescript-reviewer ``` ### Triggering Rust Build Resolution For Rust projects, the build resolver agent automates CI failure diagnosis: ```bash # A Rust project fails CI; ask ECC to fix it /rust-build ``` This command triggers the `rust-build-resolver` workflow defined in [`agents/rust-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/rust-reviewer.md). ### Loading Python Testing Skills Use skills to guide test-driven development workflows: ```bash # While writing Python tests, load the Python-testing skill /python-testing # The skill guides you through pytest-style test creation ``` ### Selective Rule Installation Copy only the rule sets you need for a lightweight configuration: ```bash # Copy just the Go rule set to your local Claude config cp -r everything-claude-code/rules/golang/* ~/.claude/rules/ ``` This approach loads only the `golang/` rules into Claude's local environment without installing the full ECC suite. ## Key Source Files and Directory Structure The language ecosystem backbone is organized as follows: - **Agent Definitions**: [`agents/typescript-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/typescript-reviewer.md), [`agents/python-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/python-reviewer.md), [`agents/go-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/go-reviewer.md), [`agents/java-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/java-reviewer.md), [`agents/kotlin-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/kotlin-reviewer.md), [`agents/cpp-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/cpp-reviewer.md), [`agents/rust-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/rust-reviewer.md) - **Rule Directories**: `rules/typescript/`, `rules/python/`, `rules/golang/`, `rules/java/`, `rules/kotlin/`, `rules/cpp/`, `rules/rust/`, `rules/php/`, `rules/perl/`, `rules/swift/` - **Skill Modules**: `skills/coding-standards/` (universal), `skills/python-patterns/`, `skills/go-patterns/`, `skills/kotlin-patterns/`, `skills/swift-concurrency-6-2/` - **Installation Scripts**: [`install.sh`](https://github.com/affaan-m/everything-claude-code/blob/main/install.sh) and `install.ps1` support cross-platform installation with language selection (`./install.sh typescript python go`) - **Manifest**: [`AGENTS.md`](https://github.com/affaan-m/everything-claude-code/blob/main/AGENTS.md) catalogs all available agents, while the `VERSION` file tracks the current release ## Summary - Everything Claude Code officially supports **12 language ecosystems** as documented in the v1.9.0 changelog. - Each ecosystem provides **three layers of support**: reviewer agents (`agents/-reviewer.md`), immutable rules (`rules//`), and framework skills (`skills/-patterns/`). - **Shell/Bash support** is integrated through installation scripts and generic hooks rather than a standalone rule directory. - **PHP and Perl** currently offer rules and skills without dedicated reviewer agents. - Language support can be installed selectively by copying specific `rules//` directories to `~/.claude/rules/`. ## Frequently Asked Questions ### How many language ecosystems does Everything Claude Code support? Everything Claude Code supports **12 language ecosystems** according to the v1.9.0 changelog entry in [`README.md`](https://github.com/affaan-m/everything-claude-code/blob/main/README.md) (line 86). These include TypeScript, Python, Go, Java, Kotlin, C++, Rust, PHP, Perl, Swift, and Shell/Bash tooling. ### Does Everything Claude Code support PHP and Perl development? Yes. While PHP and Perl do not yet have dedicated reviewer agents in the `agents/` directory, both languages include full rule sets in `rules/php/` and `rules/perl/` respectively, plus framework skills in `skills/php-patterns/` and `skills/perl-patterns/`. ### How do I invoke a language-specific reviewer in Claude Code? Run the reviewer by typing `/-reviewer` in the Claude Code command palette. For example, `/typescript-reviewer` loads [`agents/typescript-reviewer.md`](https://github.com/affaan-m/everything-claude-code/blob/main/agents/typescript-reviewer.md) and executes the rules defined in `rules/typescript/` against your current file. ### Can I install only specific language rules for a lightweight setup? Yes. The [`install.sh`](https://github.com/affaan-m/everything-claude-code/blob/main/install.sh) script supports selective installation by accepting language arguments (e.g., `./install.sh typescript python go`). Alternatively, manually copy specific rule directories such as `rules/golang/` to `~/.claude/rules/` to enable linting and standards checking without installing the complete ECC package.