For the operator three doors open.

Expose the runtime to Claude, Cursor, or any MCP-capable agent as tools.

// .mcp.json / claude_desktop_config.json entry
{
  "mcpServers": {
    "tarotscript": {
      "url": "https://tarotscript.com/mcp",
      "headers": { "Authorization": "Bearer $API_KEY" }
    }
  }
}

// call from the agent:
tarot_cast({
  spreadType: "three-card",
  seed: 42,
  querent: { intention: "..." }
})

Prefer local? Clone the repo and build packages/mcp for the stdio server — unpublished on npm, so this is a source build, not an install.

Auth-gated: the endpoint requires a bearer API key per ADR-0005 — no anonymous access.

Call the runtime directly. Bearer auth, JSON in, JSON out. Service-bindable from Cloudflare Workers.

# first cast
curl -X POST https://tarotscript.com/run \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "source": "spread T { positions: a, b, c\n flow: a -> b -> c }\nritual cast { using T\n shuffle\n draw a\n draw b\n draw c\n speak \"{a.name}\" }",
    "seed": 42,
    "inscribe": true
  }'

Compose a custom agent from four deck files. No runtime change; just files the hosted runtime loads.

// decks/agents/ciso.manifest.json
{
  "role": "ciso",
  "persona":    "ciso-persona.deck",
  "domain":     "ciso-domain.deck",
  "governance": "ciso-governance.deck",
  "actions":    "ciso-actions.deck"
}

// ciso-persona.deck — one card:
card Threat_Watcher {
  element: water
  properties:
    communication_style: "probing"
    decision_pattern: "principle-first"
}