@langchain/eslint

Shared ESLint configuration for LangChain.js projects.

Installation

pnpm add -D @langchain/eslint

Usage

Create an eslint.config.ts file in your project root:

import { langchainConfig } from "@langchain/eslint";

export default langchainConfig;

Or for specific presets:

import { base, node, browser } from "@langchain/eslint";

export default [...base, ...node];

Available Configurations

• langchainConfig - Full LangChain configuration (includes all rules)
• base - Base TypeScript + Prettier configuration
• node - Node.js specific rules
• browser - Browser specific rules

Customization

You can override any rules by adding your own configuration after importing:

import { langchainConfig, type Linter } from "@langchain/eslint";

const config: Linter.Config[] = [
  ...langchainConfig,
  {
    files: ["**/*.ts"],
    rules: {
      // Your custom rules
      "@typescript-eslint/no-explicit-any": "error",
    },
  },
];

export default config;