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alvinunreal/oh-my-opencode-slim

A multi-agent plugin for OpenCode that routes planning, codebase scouting, UI work and implementation to specialized agents, each on a model you choose.

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What is it?

oh-my-opencode-slim is an agent orchestration plugin for OpenCode, the terminal coding agent. Instead of one model handling every step, an Orchestrator agent plans the work, dispatches specialists as background tasks, and merges their results. The built-in team covers codebase scouting (Explorer), architecture review (Oracle), UI work (Designer), scoped implementation (Fixer), and optional multimodal image reading (Observer).

Each agent can be assigned a different model, and presets bundle those assignments for OpenAI, OpenCode Go or custom providers. Configuration lives in a JSON file that can be set globally or per project, and it supports custom agents, prompt overrides, and presets that extend one another. A Council mode runs several models in parallel and synthesizes a single answer when a decision needs multiple perspectives.

The plugin also ships with bundled skills such as codemap, deepwork and worktrees, an agent marketplace for community-built specialists, and optional terminal multiplexer integration (Tmux, Zellij, WezTerm and others) to watch agents work live.

Key features

  • 01Orchestrator delegates tasks to specialist agents running in the background.
  • 02Each agent can use a different model, configured per preset.
  • 03Council mode queries several models in parallel and synthesizes one answer.
  • 04Custom agents, prompt overrides and project-level configuration are supported.
  • 05Bundled skills and a community agent marketplace extend the team.
  • 06Optional live view of agents in Tmux, Zellij, WezTerm and similar multiplexers.

Use cases

  • Splitting a large coding task so a planner, scouts and implementers work in parallel.
  • Mixing a strong reasoning model for architecture with a cheaper model for search and edits.
  • Getting a second opinion from several models on a risky design decision.
  • Adding a multimodal agent so a text-only main model can read screenshots and PDFs.

Quick start

  1. 1

    Install the plugin with the Bun CLI

    bunx oh-my-opencode-slim@latest install
  2. 2

    Or install with npx if Bun is not present

    npx oh-my-opencode-slim@latest install
  3. 3

    Log in to your model providers in OpenCode

    opencode auth login
  4. 4

    Start OpenCode and ask it to ping all agents to verify setup

    opencode

Things to know

  • Requires an OpenCode installation and access to model providers you configure.
  • Default presets assume OpenAI models and go stale quickly, so you must tune model choices yourself.

In collections

Multi-agent orchestration frameworksOpen-source AI agent frameworks & apps

Topics

#ai-agents#opencode#multi-agent#llm-orchestration#coding-assistant#typescript#agentic-ai#herdr-plugin#oh-my-opencode#orchestration

FAQ

What is oh-my-opencode-slim?
A multi-agent plugin for OpenCode that routes planning, codebase scouting, UI work and implementation to specialized agents, each on a model you choose. oh-my-opencode-slim is an agent orchestration plugin for OpenCode, the terminal coding agent. Instead of one model handling every step, an Orchestrator agent plans the work, dispatches specialists as background tasks, and merges their results. The built-in team covers codebase scouting (Explorer), architecture review (Oracle), UI work (Designer), scoped implementation (Fixer), and optional multimodal image reading (Observer).
Is oh-my-opencode-slim free to use? What license does it have?
oh-my-opencode-slim is open source under the MIT license. Check the license terms before using it in commercial products.
Is oh-my-opencode-slim still maintained?
Actively maintained. The last commit to oh-my-opencode-slim was on Nov 5, 2026.
What can I use oh-my-opencode-slim for?
Splitting a large coding task so a planner, scouts and implementers work in parallel. Mixing a strong reasoning model for architecture with a cheaper model for search and edits. Getting a second opinion from several models on a risky design decision. Adding a multimodal agent so a text-only main model can read screenshots and PDFs.
How do I install oh-my-opencode-slim?
Install the plugin with the Bun CLI: bunx oh-my-opencode-slim@latest install Or install with npx if Bun is not present: npx oh-my-opencode-slim@latest install Log in to your model providers in OpenCode: opencode auth login Start OpenCode and ask it to ping all agents to verify setup: opencode
Where can I get oh-my-opencode-slim?
The source code and installation instructions are on GitHub: https://github.com/alvinunreal/oh-my-opencode-slim

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