Sim.ai support for tools

[drshika]

Sim.ai tools in Illinois Chat

This PR adds Sim.ai support in Illinois Chat.
NOTES:

• Currently all the sim.ai workflow data is put in localstorage and will need the appropriate connections to backend for the production version.
• Tool calling only works when you manually put in a description of the workflow. We will want to use MCP or some SDK endpoint that can get tool descriptions for the AI step in the tool calling part.

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Project	Deployment	Review	Updated (UTC)
uiuc-chat-frontend	Error		Dec 22, 2025 5:05pm

[drshika]

variables to add to .env for the last commit:

NEXT_PUBLIC_SIM_API_KEY=<whatever your api key is>
NEXT_PUBLIC_SIM_BASE_URL="http://localhost:3100"
NEXT_PUBLIC_SIM_WORKFLOW_ID=<whatever the workflow id is>

# Sim Weather Workflow connection params for demo db
NEXT_PUBLIC_SIM_WEATHER_WORKFLOW_HOST="sim-weatherdb-1"
NEXT_PUBLIC_SIM_WEATHER_WORKFLOW_PORT="5432"
NEXT_PUBLIC_SIM_WEATHER_WORKFLOW_DB="weather"
NEXT_PUBLIC_SIM_WEATHER_WORKFLOW_USERNAME="postgres"
NEXT_PUBLIC_SIM_WEATHER_WORKFLOW_PASSWORD="postgres"

[drshika]

docker-compose.local.yml so that illinois chat and sim can run on the same machine.

services:
  simstudio:
    build:
      context: .
      dockerfile: docker/app.Dockerfile
    ports:
      - '3100:3000'
    networks:
      - sim-network
    deploy:
      resources:
        limits:
          memory: 8G
    environment:
      - NODE_ENV=development
      - DATABASE_URL=postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@db:5432/${POSTGRES_DB:-simstudio}
      - INTERNAL_API_SECRET=${INTERNAL_API_SECRET:-<your internal api secret>}
      - BETTER_AUTH_URL=${NEXT_PUBLIC_APP_URL:-http://localhost:3100}
      - NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-http://localhost:3100}
      - BETTER_AUTH_SECRET=${BETTER_AUTH_SECRET:-<your better auth secret>}
      - ENCRYPTION_KEY=${ENCRYPTION_KEY:-<your encryption key>}
      - COPILOT_API_KEY=${COPILOT_API_KEY}
      - SIM_AGENT_API_URL=${SIM_AGENT_API_URL}
      - OLLAMA_URL=${OLLAMA_URL:-http://host.docker.internal:11434}
      - NEXT_PUBLIC_SOCKET_URL=${NEXT_PUBLIC_SOCKET_URL:-http://localhost:3102}
      - ADMIN_API_KEY=${ADMIN_API_KEY:-08884317d80755fc9e432a40092312c77163b3ece703a10da2fcbffe22deb8ee}
    depends_on:
      db:
        condition: service_healthy
      migrations:
        condition: service_completed_successfully
      realtime:
        condition: service_healthy
    healthcheck:
      test: ['CMD', 'wget', '--spider', '--quiet', 'http://127.0.0.1:3000']
      interval: 90s
      timeout: 5s
      retries: 3
      start_period: 10s


  db:
    image: pgvector/pgvector:pg17
    restart: always
    ports:
      - '5435:5432'
    environment:
      - POSTGRES_USER=${POSTGRES_USER:-postgres}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-postgres}
      - POSTGRES_DB=${POSTGRES_DB:-simstudio}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - sim-network
    healthcheck:
      test: ['CMD-SHELL', 'pg_isready -U postgres']
      interval: 5s
      timeout: 5s
      retries: 5

  realtime:
    build:
      context: .
      dockerfile: docker/realtime.Dockerfile
    environment:
      - DATABASE_URL=postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@db:5432/${POSTGRES_DB:-simstudio}
      - NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-http://localhost:3100}
      - BETTER_AUTH_URL=${BETTER_AUTH_URL:-http://localhost:3100}
      - BETTER_AUTH_SECRET=${BETTER_AUTH_SECRET:-2d985c746ba2fb74ed7546495b185b6f}
    depends_on:
      db:
        condition: service_healthy
    restart: unless-stopped
    ports:
      - '3102:3002'
    networks:
      - sim-network
    deploy:
      resources:
        limits:
          memory: 8G
    healthcheck:
      test: ['CMD', 'wget', '--spider', '--quiet', 'http://127.0.0.1:3002/health']
      interval: 90s
      timeout: 5s
      retries: 3
      start_period: 10s

  migrations:
    build:
      context: .
      dockerfile: docker/db.Dockerfile
    working_dir: /app/packages/db
    environment:
      - DATABASE_URL=postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@db:5432/${POSTGRES_DB:-simstudio}
    depends_on:
      db:
        condition: service_healthy
    networks:
      - sim-network
    command: ['bun', 'run', 'db:migrate']
    restart: 'no'

volumes:
  postgres_data:

networks:
  sim-network:
    driver: bridge