agent-ecosystem/landing/product-docs/guide/runtime-setup.md

title	description
Runtime Setup – Agent Teams Docs	Configure Claude Code, Codex, or OpenCode runtimes. Covers auth, provider access, multimodel mode, and prelaunch checks.

Runtime Setup

Agent Teams is a coordination layer. The actual model work runs through supported local runtimes and providers.

::: tip Quick start - choosing your first runtime

If you ...	Start with
Already use Claude Code or have Anthropic access	Claude - familiar auth, minimal setup
Use Codex or OpenAI-based workflows	Codex - native integration
Want multi-model routing or broad provider coverage	OpenCode - most flexible, one config for many backends
Are not sure which runtime fits	OpenCode - covers the most provider options and lets you switch later

Start with one runtime and one teammate. Confirm one launch works before expanding to multimodel. :::

Prerequisites

Before launching a team, make sure:

• The runtime binary is installed and on your PATH.
• Your provider account has active access to the model you intend to use.
• The project path exists and is readable.
• The app and your terminal use the same home/config environment when you test auth manually.

::: tip Start with a single teammate and one provider. Confirm one launch works before adding multimodel lanes. :::

Quick terminal checks:

command -v claude
command -v codex
command -v opencode

Run the command for the runtime you plan to use. If it prints nothing, install the runtime or fix PATH before launching a team.

Supported paths

Path	Default CLI	Typical providers	Use when
Claude	claude	Anthropic	You already use Claude Code or Anthropic-backed workflows
Codex	codex	OpenAI	You want Codex-native runtime integration
OpenCode	opencode	OpenRouter and many backends	You want multimodel routing and broad provider coverage

The app detects supported runtimes and guides setup from the UI when possible.

Gemini is available as a supported provider path with Google ADC (gcloud auth), Gemini CLI OAuth, and API key authentication. Configure it from the runtime setup UI when the Gemini backend is detected.

Provider access

Agent Teams has no paid tier of its own. You bring the provider access you already have: subscriptions, local runtime auth, or API keys depending on the path you choose.

• Claude and Codex paths rely on their respective CLI auth tools.
• OpenCode needs provider-specific API keys in a config file (e.g., openrouter, openai, anthropic).

Auth configuration

Claude Code

Run the standard auth flow in a terminal:

claude login

Then verify the CLI is reachable:

claude --version

If the packaged app reports "not logged in" while your terminal works, compare the $HOME and PATH seen by the app with the terminal you used for login. The auth diagnostic log described in Troubleshooting is the best starting point.

Codex

Install and authenticate via OpenAI's CLI flow:

codex login

Then verify the runtime is reachable:

codex --version

Codex-native launches use Codex account state and model catalog data when available. If a model is missing from the UI, refresh provider status before editing team prompts.

OpenCode

Create or edit ~/.opencode/config.json (or the equivalent path on your platform) with the provider key you want:

{
  "providers": {
    "openrouter": {
      "apiKey": "sk-or-..."
    }
  }
}

Use the exact provider name that OpenCode expects. If you set a custom provider name, double-check it against the provider ID you use in the model string (for example openrouter/moonshotai/kimi-k2.6 would use the openrouter block).

Example model strings:

Model string	Provider block that must exist
openrouter/moonshotai/kimi-k2.6	openrouter
openai/gpt-5.4	openai
anthropic/claude-sonnet-4-6	anthropic

If OpenCode launches but a teammate never becomes deliverable, inspect lane evidence before assuming the model ignored the prompt. See Troubleshooting.

Gemini

Gemini supports three authentication methods:

• Google ADC — run gcloud auth application-default login to authenticate via Google Application Default Credentials.
• Gemini CLI — run gemini login if the Gemini CLI is installed.
• API key — set GEMINI_API_KEY in your environment or configure it through the app's Manage Providers UI.

The app auto-detects which auth method is available and shows the Gemini provider in the runtime setup and team creation UI when the backend is reachable.

Multimodel mode

Multimodel mode can route work through many provider backends via OpenCode-compatible configuration. Use it when you need provider flexibility or want teammates to use different model lanes.

::: info Model lanes Each teammate can use a different providerId + model pair. In the team edit UI, expand member options to override the global defaults. :::

A conservative multimodel setup:

Role	Provider	Why
Lead	Claude or Codex	Keep coordination on the provider you trust most
Builder	OpenCode	Use broad model routing for implementation work
Reviewer	Claude, Codex, or a second OpenCode model	Separate review judgment from the builder lane

Avoid mixing many unfamiliar providers in the first launch. Confirm one small task per lane before assigning broad work.

Prelaunch checklist

Before launching a team:

1. The selected runtime is installed
2. The runtime binary is in the environment PATH
3. Provider auth is configured for the chosen backend
4. The provider has access to the exact model string you specify
5. The project path exists and is readable

When to switch runtime paths

Switch when the current path is blocked by model availability, rate limits, provider capabilities, or team role needs. Keep the same project and team workflow, but validate one small task after switching.

::: warning Treat setup errors as setup problems If auth fails, a model name is rejected, or the runtime binary cannot be found, fix the setup first. Do not change team prompts or project code to work around a runtime configuration issue. :::

Use this decision table:

Symptom	Better first action
Binary not found	Fix installation or PATH
Login works in terminal but not app	Check Electron auth diagnostic log and environment
Model rejected	Verify exact model id in the provider runtime
Repeated 429s	Lower concurrency or switch model/provider
OpenCode lane stuck	Inspect lane manifest and opencode-sessions.json