oh-my-opencode-slim

# oh-my-opencode-slim **A lightweight, powerful agent orchestration plugin for OpenCode** *Transform your AI assistant into a manager capable of delegating complex tasks to specialized sub-agents, running searches in the background, and managing multi-step workflows with ease.*

Slimmed-down fork of oh-my-opencode — focused on core agent orchestration without the extra bells and whistles.

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Installation

For Humans

Run the interactive installer:

bunx oh-my-opencode-slim install

Or use non-interactive mode:

bunx oh-my-opencode-slim install --no-tui --antigravity=yes --openai=yes --cerebras=no

Alternative: Ask any coding agent

Paste this into Claude Code, AmpCode, Cursor, or any coding agent:

Install and configure by following the instructions here:
https://raw.githubusercontent.com/alvinunreal/oh-my-opencode-slim/refs/heads/master/README.md

For LLM Agents

Instructions for LLM Agents (click to expand)

If you're an LLM Agent helping set up oh-my-opencode-slim, follow these steps.

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Step 1: Check OpenCode Installation

opencode --version

If not installed, direct the user to https://opencode.ai/docs first.

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Step 2: Ask About Provider Access

Ask these questions one at a time, waiting for responses:

1. "Do you have an Antigravity subscription?" (Provides Claude + Gemini via google/ prefix)
2. "Do you have access to OpenAI API?" (Enables openai/ models)
3. "Do you have access to Cerebras API?" (Enables cerebras/ for fast exploration)

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Step 3: Run the Installer

Based on answers, run:

bunx oh-my-opencode-slim install --no-tui --antigravity=<yes|no> --openai=<yes|no> --cerebras=<yes|no>

Examples:

# Antigravity + OpenAI
bunx oh-my-opencode-slim install --no-tui --antigravity=yes --openai=yes --cerebras=no

# OpenAI only
bunx oh-my-opencode-slim install --no-tui --antigravity=no --openai=yes --cerebras=no

# All providers
bunx oh-my-opencode-slim install --no-tui --antigravity=yes --openai=yes --cerebras=yes

The installer automatically:

• Adds the plugin to ~/.config/opencode/opencode.json
• Adds opencode-antigravity-auth plugin (if Antigravity enabled)
• Configures Google provider with model definitions
• Generates agent model mappings in ~/.config/opencode/oh-my-opencode-slim.json

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Step 4: Authentication

After installation, guide the user:

For Antigravity:

opencode auth login
# Select: Google → OAuth with Google (Antigravity)

For OpenAI:

export OPENAI_API_KEY="sk-..."

For Cerebras:

export CEREBRAS_API_KEY="..."

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Step 5: Verify

opencode

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Troubleshooting

If the installer fails, check the expected config format:

bunx oh-my-opencode-slim install --help

Then manually create the config files at:

• ~/.config/opencode/opencode.json
• ~/.config/opencode/oh-my-opencode-slim.json

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Architecture & Flow

The plugin follows a "Hub and Spoke" model:

1. The Orchestrator (Hub): The main entry point for user requests. It analyzes the task and decides which specialized agents to call.
2. Specialized Agents (Spokes): Domain-specific experts (e.g., UI/UX, Documentation, Architecture) that handle narrow tasks with high precision.
3. Background Manager: A robust engine that allows the Orchestrator to "fire and forget" tasks (like deep codebase searches or documentation research) while continuing to work on other parts of the problem.

The Flow of a Request

1. User Prompt: "Refactor the auth logic and update the docs."
2. Orchestrator: Creates a TODO list.
3. Delegation:
   • Launches an @explore background task to find all auth-related files.
   • Launches a @librarian task to check the latest documentation for the auth library used.
4. Integration: Once background results are ready, the Orchestrator performs the refactor.
5. Finalization: Passes the changes to @document-writer to update the README.

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Agents

Agent	Role	Default Model	Best Used For
orchestrator	Manager	google/claude-opus-4-5-thinking	Planning, task delegation, and overall coordination.
oracle	Architect	openai/gpt-5.2-codex	Complex debugging, architectural decisions, and code reviews.
explore	Searcher	cerebras/zai-glm-4.6	Fast codebase grep, finding patterns, and locating definitions.
librarian	Researcher	google/gemini-3-flash	External library docs, GitHub examples, and API research.
frontend-ui-ux-engineer	Designer	google/gemini-3-flash	Visual changes, CSS/styling, and React/Vue component polish.
document-writer	Scribe	google/gemini-3-flash	Technical documentation, READMEs, and inline code comments.
multimodal-looker	Visionary	google/gemini-3-flash	Analyzing screenshots, wireframes, or UI designs.
code-simplicity-reviewer	Minimalist	google/claude-opus-4-5-thinking	Ruthless code simplification and YAGNI principle enforcement.

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Tools & Capabilities

Background Tasks

The plugin provides tools to manage asynchronous work:

Tool	Description
background_task	Launch an agent in a new session (sync=true blocks, sync=false runs in background)
background_output	Fetch the result of a background task by ID
background_cancel	Abort running tasks

LSP Tools

Language Server Protocol integration for code intelligence:

Tool	Description
lsp_goto_definition	Jump to symbol definition
lsp_find_references	Find all usages of a symbol across the workspace
lsp_diagnostics	Get errors/warnings from the language server
lsp_rename	Rename a symbol across all files

Code Search Tools

Fast code search and refactoring:

Tool	Description
grep	Fast content search using ripgrep
ast_grep_search	AST-aware code pattern matching (25 languages)
ast_grep_replace	AST-aware code refactoring with dry-run support

Quota Tool

For Antigravity users:

Tool	Description
antigravity_quota	Check API quota for all Antigravity accounts (compact view with progress bars)

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MCP Servers

Built-in Model Context Protocol servers (enabled by default):

MCP	Purpose	URL
websearch	Real-time web search via Exa AI	https://mcp.exa.ai/mcp
context7	Official library documentation	https://mcp.context7.com/mcp
grep_app	GitHub code search via grep.app	https://mcp.grep.app

Disabling MCPs

You can disable specific MCP servers in your config:

{
  "disabled_mcps": ["websearch", "grep_app"]
}

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Configuration

You can customize the behavior of the plugin via JSON configuration files.

Configuration Files

The plugin looks for configuration in two places (and merges them):

1. User Global: ~/.config/opencode/oh-my-opencode-slim.json (or OS equivalent)
2. Project Local: ./.opencode/oh-my-opencode-slim.json

Platform	User Config Path
Windows	~/.config/opencode/oh-my-opencode-slim.json or %APPDATA%\opencode\oh-my-opencode-slim.json
macOS/Linux	~/.config/opencode/oh-my-opencode-slim.json

Disabling Agents

You can disable specific agents using the disabled_agents array:

{
  "disabled_agents": ["multimodal-looker", "code-simplicity-reviewer"]
}

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Uninstallation

1. Remove the plugin from your OpenCode config:

Edit ~/.config/opencode/opencode.json and remove "oh-my-opencode-slim" from the plugin array.

1. Remove configuration files (optional): bash rm -f ~/.config/opencode/oh-my-opencode-slim.json rm -f .opencode/oh-my-opencode-slim.json

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Credits

This is a slimmed-down fork of oh-my-opencode by @code-yeongyu.

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License

MIT