Telegram Channel Lookup (Batch, by Username)

{
  "type": "object",
  "required": [
    "channels"
  ],
  "properties": {
    "channels": {
      "type": "string",
      "examples": [
        "durov,telegram"
      ],
      "description": "Comma-separated usernames (max 20)"
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "count": {
      "type": "number",
      "description": "Number of channels requested in this call."
    },
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "ok": {
            "type": "boolean",
            "description": "True when the username resolved to an existing public channel."
          },
          "info": {
            "type": "object",
            "properties": {
              "photo": {
                "type": [
                  "string",
                  "null"
                ],
                "description": "The channel's public avatar image URL. Value withheld (stripped to `null`) in this tool's output -- only whether a photo is set is observable, not the image itself."
              },
              "title": {
                "type": "string"
              },
              "counters": {
                "type": "object",
                "properties": {
                  "links": {
                    "type": "string"
                  },
                  "photos": {
                    "type": "string"
                  },
                  "videos": {
                    "type": "string"
                  },
                  "subscribers": {
                    "type": "string"
                  }
                },
                "additionalProperties": true
              },
              "username": {
                "type": "string"
              },
              "verified": {
                "type": "boolean"
              },
              "description": {
                "type": "string"
              },
              "subscribers": {
                "type": "string",
                "description": "Abbreviated subscriber count as a display string, e.g. '10.8M'. Duplicates `counters.subscribers` below; both are kept because they come from the same upstream field pair on every real call observed."
              }
            },
            "description": "Present only when `ok` is true.",
            "additionalProperties": true
          },
          "error": {
            "type": "string",
            "description": "Present only when `ok` is false. Observed as a Chinese-language upstream message meaning \"channel does not exist or is not public\" on the one not-found case calibrated -- treat any non-empty value as a not-found/not-public signal rather than parsing its exact text."
          },
          "channel": {
            "type": "string",
            "description": "The requested username this entry answers for, echoed back verbatim."
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per requested username, in request order."
    }
  },
  "description": "The batch lookup result, as returned at routing.responseResultPath ($.output).",
  "additionalProperties": true
}