opencode

Opinionated AI coding agent for agentic workflows.

Based on OpenCode by Anomaly Co (MIT License)

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What is this?

A lightweight fork of OpenCode optimized for single developers running agentic workflows. Think PM agents orchestrating specialist agents, with deep memory/context integration via remory.

Philosophy:

• Opinionated defaults over endless configuration
• Optimized for agentic orchestration patterns
• Lightweight - stripped of enterprise bloat
• Single developer friendly

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Installation

# Clone
git clone https://github.com/randomm/opencode.git
cd opencode

# Install dependencies
bun install

# Build
cd packages/opencode && bun run build

# Install binary (adjust path for your platform)
cp dist/opencode-darwin-arm64/bin/opencode ~/bin/

# Linux x64
# cp dist/opencode-linux-x64/bin/opencode ~/bin/

Make sure ~/bin is in your PATH.

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Quick start

# Navigate to your project
cd my-project

# Start opencode
opencode

On first run, you'll be prompted to configure your AI provider. Set your API key:

export ANTHROPIC_API_KEY="sk-..."
# or
export OPENAI_API_KEY="sk-..."

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Configuration

Create opencode.json in your project root or ~/.config/opencode/config.json for global settings.

{
  "provider": {
    "anthropic": {
      "model": "claude-sonnet-4-20250514"
    }
  }
}

Key options:

• provider - AI provider configuration (anthropic, openai, etc.)
• mcpServers - MCP server integrations
• instructions - Custom system instructions

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Agents

Two built-in agents, switchable with Tab:

• build - Full access agent for development work (default)
• plan - Read-only agent for analysis and exploration

Use @general in messages to invoke the subagent for complex searches.

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Differences from upstream

This fork focuses on:

• Agentic workflows - Optimized for PM/specialist agent patterns
• remory integration - Deep memory and context management
• Minimal footprint - No desktop app, no VS Code extension, no npm publishing
• Opinionated defaults - Less configuration, more convention

Removed from upstream:

• Desktop application
• VS Code extension
• npm/brew/scoop publishing
• Enterprise features

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License

MIT License. See LICENSE.

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Attribution

This project is a fork of OpenCode by Anomaly Co, licensed under MIT. We're grateful for their work on the original project.