adk-gateway 1.0.0

Multi-channel AI gateway for adk-rust agents — Telegram, Slack, WhatsApp, Discord, Matrix + control panel
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{
  // adk-gateway — Graph workflow agent with action nodes
  //
  // Demonstrates a Graph-type agent that uses action nodes for a
  // data processing pipeline:
  //   1. HTTP fetch → 2. Transform → 3. Conditional routing → 4. LLM analysis
  //
  // The agent runs as an isolated binary with its own A2A endpoint.
  // Action nodes execute programmatic operations (HTTP, transform, switch)
  // alongside LLM reasoning steps.

  "agent": {
    "model": "anthropic/claude-sonnet-4"
  },

  "channels": {
    "webhook": {
      "enabled": true,
      "secret": "${WEBHOOK_SECRET}",
      "allowFrom": ["*"]
    }
  },

  "gateway": {
    "port": 18789,
    "bind": "loopback"
  },

  "user_agents": [
    {
      "id": "data-pipeline",
      "name": "Data Pipeline Agent",
      "description": "Fetches external data, transforms it, and generates analysis reports",
      "agent_type": "Graph",
      "model": "anthropic/claude-sonnet-4",
      "api_key_env": "ANTHROPIC_API_KEY",
      "instruction": "You are a data analysis agent. Process incoming data through the pipeline and generate clear, actionable reports.",
      "tools": ["http_request", "calculator"],

      "action_nodes": [
        {
          "id": "fetch-data",
          "config": {
            "type": "http",
            "url": "{{data_source_url}}",
            "method": "GET",
            "headers": {
              "Authorization": "Bearer {{api_token}}"
            },
            "timeout": 30,
            "error_handling": "retry",
            "retry_count": 3,
            "retry_delay": 1000
          }
        },
        {
          "id": "transform-response",
          "config": {
            "type": "transform",
            "expression": "data.items | map(select(.status == 'active'))",
            "input_key": "fetch_result",
            "output_key": "active_items"
          }
        },
        {
          "id": "check-threshold",
          "config": {
            "type": "switch",
            "evaluation_mode": "first_match",
            "conditions": [
              {
                "expression": "active_items | length > 100",
                "target": "summarize-large"
              },
              {
                "expression": "active_items | length > 0",
                "target": "analyze-small"
              }
            ],
            "default_target": "no-data-response"
          }
        },
        {
          "id": "no-data-response",
          "config": {
            "type": "set",
            "key": "report",
            "value": "No active items found in the data source."
          }
        }
      ],

      "workflow_edges": [
        { "from": "start", "to": "fetch-data", "condition": null },
        { "from": "fetch-data", "to": "transform-response", "condition": null },
        { "from": "transform-response", "to": "check-threshold", "condition": null },
        { "from": "check-threshold", "to": "summarize-large", "condition": "large_dataset" },
        { "from": "check-threshold", "to": "analyze-small", "condition": "small_dataset" },
        { "from": "check-threshold", "to": "no-data-response", "condition": "no_data" }
      ],

      "sub_agents": [],
      "role": {
        "allow": ["http_request", "calculator"],
        "deny": []
      },
      "channel_bindings": [
        {
          "channel_type": "webhook",
          "account_id": null,
          "peer_filter": null
        }
      ],
      "auto_start": true,
      "temperature": 0.2,
      "max_output_tokens": 4096
    }
  ]
}