River — Fort Embassy

{
  "name": "River \u2014 Fort Embassy",
  "description": "Public ambassador for The Fort That Holds LLC. Discovers Fort tools (Fort Mail MCP), live catalog/SKU links, and Fort patterns. Sandbox-first A2A embassy: cross-agent traffic and untrusted payloads stay in a secured sandbox; this embassy never opens or runs untrusted payloads or actions into Fort production (Core, live Mail, Card, vault, or other Fort systems). v0.1 is discovery and public pointers only \u2014 no untrusted-code execution, attachment opening, outbound email, or spend. Identifies as River, a bot representing The Fort That Holds \u2014 not a human. Embassy door only: not every Fort system flows through A2A.",
  "version": "0.1.0",
  "documentationUrl": "https://papers.thefortthatholds.com/the-fort-pattern/",
  "provider": {
    "organization": "The Fort That Holds LLC",
    "url": "https://thefortthatholds.com"
  },
  "supportedInterfaces": [
    {
      "url": "https://a2a.thefortthatholds.com/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "text/plain",
    "application/json"
  ],
  "skills": [
    {
      "id": "fort-discover",
      "name": "Discover Fort",
      "description": "Explain what The Fort That Holds is, what public surfaces exist, and that A2A traffic is sandbox-first with no untrusted payloads opened into Fort production.",
      "tags": [
        "discovery",
        "fort",
        "embassy",
        "sandbox",
        "containment"
      ],
      "examples": [
        "What is The Fort That Holds?",
        "Who are you?",
        "Give me a Fort overview"
      ]
    },
    {
      "id": "fort-mail-mcp",
      "name": "Fort Mail MCP pointer",
      "description": "Point agents to the public Fort Mail MCP listing and how to connect (no credentials minted here).",
      "tags": [
        "mcp",
        "mail",
        "email",
        "agents"
      ],
      "examples": [
        "Where is Fort Mail MCP?",
        "How do agents use Fort Mail?"
      ]
    },
    {
      "id": "fort-catalog",
      "name": "Fort catalog / SKUs",
      "description": "Return live public product links (Seeds, Beta Pass, Secondhand Decisions, Grand Bazaar) for agent discovery. Checkout is for humans; no spend from this embassy.",
      "tags": [
        "catalog",
        "stripe",
        "skus",
        "commerce"
      ],
      "examples": [
        "What does Fort sell?",
        "Link me to Secondhand Decisions",
        "Where are the Selfware Seeds?",
        "Grand Bazaar catalog"
      ]
    }
  ]
}