# @elaraai/e3-core

Core library for e3 repository operations, similar to libgit2 for git.

## Installation

```bash
npm install @elaraai/e3-core
```

## Overview

Pure business logic with no UI dependencies. Use this to build custom tools, integrations, or alternative interfaces on top of e3.

## API

### Repository

```typescript
import { repoInit, repoFind, repoGet } from '@elaraai/e3-core';

await repoInit('/path/to/project');
const repoPath = repoFind();  // Searches cwd and parents
```

### Packages

```typescript
import { packageImport, packageList, packageResolve } from '@elaraai/e3-core';

await packageImport(repoPath, zipPath);
const packages = await packageList(repoPath);
const pkg = await packageResolve(repoPath, 'my-pkg@1.0.0');
```

### Workspaces

```typescript
import { workspaceCreate, workspaceList, workspaceDeploy, workspaceStatus } from '@elaraai/e3-core';

await workspaceCreate(repoPath, 'dev');
await workspaceDeploy(repoPath, 'dev', 'my-pkg@1.0.0');
const status = await workspaceStatus(storage, repoPath, 'dev');
```

### Datasets

```typescript
import { workspaceGetDataset, workspaceSetDataset } from '@elaraai/e3-core';

const value = await workspaceGetDataset(storage, repoPath, 'dev', ['inputs', 'config']);
await workspaceSetDataset(storage, repoPath, 'dev', ['inputs', 'config'], newValue);
```

### Dataflow Execution

```typescript
import { dataflowExecute, dataflowStart } from '@elaraai/e3-core';

// Blocking execution
const result = await dataflowExecute(storage, repoPath, 'dev', { force: true });

// Non-blocking execution
const handle = await dataflowStart(storage, repoPath, 'dev');
```
## Claude Code plugin

The East ecosystem also ships a [Claude Code](https://claude.com/claude-code) plugin — East language skills, example search, and preemptive diagnostics for East code — installed separately from the `elaraai` marketplace:

```text
# Inside Claude Code
/plugin marketplace add elaraai/east-workspace
/plugin install east@elaraai
```

```bash
# From a terminal
claude plugin marketplace add elaraai/east-workspace
claude plugin install east@elaraai
```

## License

BSL 1.1. See [LICENSE.md](./LICENSE.md).

### Ecosystem

- **[East](https://github.com/elaraai/east-workspace/tree/main/libs/east)**: Statically typed, expression-based language with serializable IR. Run portable logic across TypeScript, Python, C, and other runtimes.
  - [@elaraai/east](https://www.npmjs.com/package/@elaraai/east): Core language SDK with type system, expressions, and reference JS compiler

- **[East Node](https://github.com/elaraai/east-workspace/tree/main/libs/east-node)**: Node.js platform functions for I/O, databases, and system operations.
  - [@elaraai/east-node-std](https://www.npmjs.com/package/@elaraai/east-node-std): Console, FileSystem, Fetch, Crypto, Time, Path, Random
  - [@elaraai/east-node-io](https://www.npmjs.com/package/@elaraai/east-node-io): SQLite, PostgreSQL, MySQL, MongoDB, Redis, S3, FTP, SFTP, XLSX, XML, compression
  - [@elaraai/east-node-cli](https://www.npmjs.com/package/@elaraai/east-node-cli): CLI for running East IR programs in Node.js

- **[East C](https://github.com/elaraai/east-workspace/tree/main/libs/east-c)**: C11 native runtime for executing East IR. Distributed via npm (launcher + per-platform optional dependencies) and as tarballs on each GitHub Release.
  - [@elaraai/east-c-cli](https://www.npmjs.com/package/@elaraai/east-c-cli): npm launcher — installs the matching native binary as an optional dependency
  - `east-c`: Core runtime — type system, IR interpreter, builtins, serialization (Beast2, JSON, CSV, East text)
  - `east-c-std`: Console, FileSystem, Fetch, Crypto, Time, Path, Random
  - `east-c-cli`: CLI for running East IR programs natively

- **[East Python](https://github.com/elaraai/east-workspace/tree/main/libs/east-py)**: Python runtime, standard platform, I/O, and data-science platform functions. Published to PyPI.
  - [east-py](https://pypi.org/project/east-py/): Core Python runtime — type system, IR compiler, 212+ builtins, Cython-accelerated hot paths
  - [east-py-std](https://pypi.org/project/east-py-std/): Console, FileSystem, Fetch, Crypto, Time, Path, Random
  - [east-py-io](https://pypi.org/project/east-py-io/): SQLite, PostgreSQL, MySQL, MongoDB, Redis, S3, FTP, SFTP, XLSX, XML, compression
  - [east-py-cli](https://pypi.org/project/east-py-cli/): CLI for running East IR programs in Python
  - [east-py-datascience](https://pypi.org/project/east-py-datascience/) (PyPI) + [@elaraai/east-py-datascience](https://www.npmjs.com/package/@elaraai/east-py-datascience) (npm): Optimization (MADS, Optuna, ALNS, GoogleOR), ML (XGBoost, LightGBM, NGBoost, PyTorch, Lightning, GP), Bayesian inference (PyMC), explainability (SHAP), conformal prediction (MAPIE)

- **[East UI](https://github.com/elaraai/east-workspace/tree/main/libs/east-ui)**: Typed UI component definitions and React renderer, plus VS Code preview.
  - [@elaraai/east-ui](https://www.npmjs.com/package/@elaraai/east-ui): 50+ typed UI components for layouts, forms, charts, tables, dialogs
  - [@elaraai/east-ui-components](https://www.npmjs.com/package/@elaraai/east-ui-components): React renderer with Chakra UI v3 styling
  - [@elaraai/e3-ui](https://www.npmjs.com/package/@elaraai/e3-ui): e3 + UI bridge — Data bindings, `e3.ui()` task, manifest
  - [@elaraai/e3-ui-components](https://www.npmjs.com/package/@elaraai/e3-ui-components): React Query hooks and preview components for the e3 API
  - [east-ui-preview](https://marketplace.visualstudio.com/items?itemName=ElaraAI.east-ui-preview): VS Code extension for live East UI component preview

- **[e3 — East Execution Engine](https://github.com/elaraai/east-workspace/tree/main/libs/e3)**: Durable execution engine for running East pipelines at scale. Git-like content-addressable storage, automatic memoization, reactive dataflow, real-time monitoring.
  - [@elaraai/e3](https://www.npmjs.com/package/@elaraai/e3): SDK for authoring e3 packages with typed tasks and pipelines
  - [@elaraai/e3-core](https://www.npmjs.com/package/@elaraai/e3-core): Object store, dataflow orchestrator, execution state
  - [@elaraai/e3-types](https://www.npmjs.com/package/@elaraai/e3-types): Shared type definitions for e3 packages
  - [@elaraai/e3-cli](https://www.npmjs.com/package/@elaraai/e3-cli): `e3 repo`, `e3 package`, `e3 workspace`, `e3 start`, `e3 watch`, `e3 logs` commands
  - [@elaraai/e3-api-client](https://www.npmjs.com/package/@elaraai/e3-api-client): HTTP client for remote e3 repositories
  - [@elaraai/e3-api-server](https://www.npmjs.com/package/@elaraai/e3-api-server): REST API server for e3 repositories
  - [@elaraai/e3-api-tests](https://www.npmjs.com/package/@elaraai/e3-api-tests): Shared API compliance test suites

## Links

- [East Language](https://github.com/elaraai/east-workspace/tree/main/libs/east)
- [East Python Runtime](https://github.com/elaraai/east-workspace/tree/main/libs/east-py)
- [Elara AI](https://elaraai.com/)
- [Issues](https://github.com/elaraai/east-workspace/issues)
- support@elara.ai

## About Elara

East is developed by [Elara AI Pty Ltd](https://elaraai.com/), an AI-powered platform that creates economic digital twins of businesses that optimize performance. Elara combines business objectives, decisions and data to help organizations make data-driven decisions across operations, purchasing, sales and customer engagement, and project and investment planning. East powers the computational layer of Elara solutions, enabling the expression of complex business logic and data in a simple, type-safe and portable language.

---

*Developed by [Elara AI Pty Ltd](https://elaraai.com/).*

---

*Developed by [Elara AI Pty Ltd](https://elaraai.com/)*