# Create root session
npx praisonai session hierarchy create root-session

# Create child session
npx praisonai session hierarchy fork root-session --child research-phase

# List session tree
npx praisonai session hierarchy list root-session

# Set context on session
npx praisonai session hierarchy context root-session --set goal "Build chatbot"

# Get context (includes inherited)
npx praisonai session hierarchy context research-phase --get goal

# Show all context
npx praisonai session hierarchy context research-phase --all

# Fork for parallel approaches
npx praisonai session hierarchy fork main-session --child approach-a
npx praisonai session hierarchy fork main-session --child approach-b

# Merge winning branch
npx praisonai session hierarchy merge main-session approach-a

# Show session tree
npx praisonai session hierarchy tree root-session

# Output:
# root-session
# ├── research-phase
# │   └── literature-review
# └── implementation-phase

import { HierarchicalSession, createHierarchicalSession } from 'praisonai';

const parent = createHierarchicalSession({ id: 'parent' });
const child = parent.fork({ id: 'child' });