elaraai

East Plugin for Claude Code

A Claude Code plugin for the East programming language ecosystem.

Skills

Skill	Package	Description
east	@elaraai/east	Core East language - types, expressions, compilation
east-node-std	@elaraai/east-node-std	Node.js platform functions (Console, FileSystem, Fetch, Crypto, Random, Time)
east-node-io	@elaraai/east-node-io	I/O platform functions (SQL, NoSQL, S3, FTP, XLSX, compression)
east-py-datascience	@elaraai/east-py-datascience	Data science & ML (MADS, Optuna, XGBoost, Torch, GP, SHAP)
east-ui	@elaraai/east-ui	UI components (50+ typed components for layouts, forms, charts)
e3	@elaraai/e3	East Execution Engine - durable execution for East pipelines

Example Search

The plugin includes a searchable index of East code examples extracted from the source repositories. This powers two features:

• Hook (hooks/prompt-submit.js) — automatically injects relevant examples into every prompt based on what you're asking
• MCP tool (mcp/search-server.js) — exposes a search_east_examples tool that Claude can call on-demand with targeted queries

The index (index.json) is generated from *.examples.ts files across all East packages and is kept in sync by the update-skills workflow.

Generating the index locally

npm run generate-index -- --base-dir /path/to/source/repos

The --base-dir should point to a directory containing the cloned East source repos (east/, east-node/, east-py/, east-ui/). See index.config.json for the package-to-path mappings.

Installation

From GitHub:

# Add the marketplace
/plugin marketplace add elaraai/east-plugin

# Install the plugin
/plugin install east

From local directory (for development):

# Add local marketplace
/plugin marketplace add /path/to/east-plugin

# Install the plugin
/plugin install east

Project Scaffolding

Create new East projects with a single command:

East project (AGPL-3.0, Node.js only):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/project/east.sh | bash

e3 project (BSL-1.1, Node.js + Python):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/project/e3.sh | bash

Script	License	Contents
scripts/project/east.sh	AGPL-3.0	east, east-node-std, east-node-io
scripts/project/e3.sh	BSL-1.1	Everything in east + e3, east-py-datascience

Generated projects include:

• TypeScript configuration with strict mode
• Makefile with install, build, run, test, refresh targets
• Example East function ready to build and run

Local Installation

Install the East CLIs directly on your machine (Linux/macOS):

For users (installs CLIs from npm/PyPI):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/global/install.sh | bash

For contributors (clones all repos and builds from source):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/global/install-dev.sh | bash

Script	What it does	Requirements
scripts/global/install.sh	Installs CLIs globally from npm/PyPI, builds east-c from source	curl, git, cmake, gcc
scripts/global/install-dev.sh	Clones all repos to ~/east, builds and tests them	curl, git, make, cmake, gcc
scripts/global/update.sh	Updates CLIs to latest versions	npm
scripts/global/update-dev.sh	Pulls latest and rebuilds all repos	git, make

Update CLIs (fetches latest versions from npm/PyPI):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/global/update.sh | bash

Update repos (pulls latest commits and rebuilds from source):

curl -fsSL https://raw.githubusercontent.com/elaraai/east-plugin/main/scripts/global/update-dev.sh | bash

Both install scripts install:

• east-node - East Node.js CLI
• east-c - East C CLI (built from source)
• e3 - East Execution Engine CLI
• east-py - East Python CLI

Docker Images

Pre-built Docker images provide a consistent execution environment without needing to install Node.js, Python, or any East packages locally.

Images

Image	License	Contents
ghcr.io/elaraai/east-node	AGPL-3.0	Node.js 22 + East + east-node-std/io + east-ui
ghcr.io/elaraai/e3	BSL + AGPL	Everything in east-node + Python 3.11 + east-py + east-c + e3

Usage

# Pull images
docker pull ghcr.io/elaraai/east-node
docker pull ghcr.io/elaraai/e3

# Run East Node.js programs
docker run --rm -v $(pwd):/workspace ghcr.io/elaraai/east-node \
  npx @elaraai/east-node-cli run program.east