Claude example: Sonnet for code, Fable for review

This example configures Claude so that Sonnet implements Changes and Fable reviews the result.

Claude Manager
    ├── Sonnet — code
    └── Fable  — review

Before you start

Install and sign in to Claude Code. In ithyno, open Settings → Prerequisites, confirm that Claude is available, and use Manage skills to install its OpenSpec and ithyno skills.

Configure the Agents screen

Open Agents and configure the following three entries. Leave Prompt blank.

Name	Role	Command	Args
manager	manager	claude	leave empty
claude-sonnet-code	code	claude	--model sonnet
claude-fable-review	review	claude	--model fable

agents.yaml example

You can also use the following agents.yaml at the project root:

agents:
  - name: manager
    mode: live-shell
    roles: [manager]
    command: claude
    args: []

  - name: claude-sonnet-code
    mode: single-prompt
    roles: [code]
    command: claude
    args:
      - --model
      - sonnet

  - name: claude-fable-review
    mode: single-prompt
    roles: [review]
    command: claude
    args:
      - --model
      - fable

parallelExecution: true

Start a Change

1. After saving the configuration, refresh the Manager terminal.
2. Create a Change or open an existing proposed Change.
3. Select Start.
4. Follow the code and review progress from the Change card or Agents.

This example covers code and review. Add a Worker with the verify role when you also want a separate verification step.

For configurations that mix different CLIs, see Set Up Multiple Agents and Dispatch a Change.