refactor: structured body (array|object, never string) for canonicalization

Message bodies are always arrays of strings (text lines) or objects (structured data like PUBKEY). Never raw strings. This enables: - Multiline messages without escape sequences - Deterministic JSON canonicalization (RFC 8785 JCS) for signing - Structured data where needed Update all schemas: body fields use array type with string items. Update message.json envelope: body is oneOf[array, object], id is UUID. Update README: message envelope table, examples, and canonicalization docs. Update schema/README.md: field types, examples with array bodies.
2026-02-10 10:36:02 -08:00
parent dfb1636be5
commit ab70f889a6
22 changed files with 446 additions and 171 deletions
--- a/schema/README.md
+++ b/schema/README.md
@@ -11,24 +11,33 @@ to IRC wire format:

 ```
 IRC:  :nick PRIVMSG #channel :hello world
-JSON: {"command": "PRIVMSG", "from": "nick", "to": "#channel", "body": "hello world"}
+JSON: {"command": "PRIVMSG", "from": "nick", "to": "#channel", "body": ["hello world"]}

 IRC:  :server 353 nick = #channel :user1 @op1 +voice1
-JSON: {"command": "353", "to": "nick", "params": ["=", "#channel"], "body": "user1 @op1 +voice1"}
+JSON: {"command": "353", "to": "nick", "params": ["=", "#channel"], "body": ["user1 @op1 +voice1"]}
+
+Multiline:  {"command": "PRIVMSG", "to": "#ch", "body": ["line 1", "line 2"]}
+Structured: {"command": "PUBKEY", "body": {"alg": "ed25519", "key": "base64..."}}
 ```

 Common fields (see `message.json` for full schema):

-| Field     | Type     | Description                                           |
-|-----------|----------|-------------------------------------------------------|
-| `id`      | integer  | Server-assigned ID (monotonically increasing)         |
-| `command` | string   | IRC command or 3-digit numeric code                   |
-| `from`    | string   | Source nick or server name (IRC prefix)               |
-| `to`      | string   | Target: #channel or nick                              |
-| `params`  | string[] | Middle parameters (mainly for numerics)               |
-| `body`    | string   | Trailing parameter (message text)                     |
-| `ts`      | string   | ISO 8601 timestamp (server-assigned, not in raw IRC)  |
-| `meta`    | object   | Extensible metadata (not in raw IRC)                  |
+| Field     | Type           | Description                                          |
+|-----------|----------------|------------------------------------------------------|
+| `id`      | string (uuid)  | Server-assigned message UUID                         |
+| `command` | string         | IRC command or 3-digit numeric code                  |
+| `from`    | string         | Source nick or server name (IRC prefix)              |
+| `to`      | string         | Target: #channel or nick                             |
+| `params`  | string[]       | Middle parameters (mainly for numerics)              |
+| `body`    | array \| object | Structured body — never a raw string (see below)    |
+| `ts`      | string         | ISO 8601 timestamp (server-assigned, not in raw IRC) |
+| `meta`    | object         | Extensible metadata (signatures, hashes, etc.)       |
+
+**Structured bodies:** `body` is always an array of strings (for text) or an
+object (for structured data like PUBKEY). Never a raw string. This enables:
+- Multiline messages without escape sequences
+- Deterministic canonicalization via RFC 8785 JCS for signing
+- Structured data where needed

 ## Commands

--- a/schema/commands/KICK.json
+++ b/schema/commands/KICK.json
@@ -6,15 +6,8 @@
  "$ref": "../message.json",
  "properties": {
    "command": { "const": "KICK" },
-    "from": {
-      "type": "string",
-      "description": "Nick that performed the kick."
-    },
-    "to": {
-      "type": "string",
-      "description": "Channel name.",
-      "pattern": "^#[a-zA-Z0-9_-]+$"
-    },
+    "from": { "type": "string", "description": "Nick that performed the kick." },
+    "to": { "type": "string", "description": "Channel name.", "pattern": "^#[a-zA-Z0-9_-]+$" },
    "params": {
      "type": "array",
      "items": { "type": "string" },
@@ -23,12 +16,14 @@
      "maxItems": 1
    },
    "body": {
-      "type": "string",
-      "description": "Optional kick reason."
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Optional kick reason.",
+      "maxItems": 1
    }
  },
  "required": ["command", "to", "params"],
  "examples": [
-    { "command": "KICK", "from": "op1", "to": "#general", "params": ["troll"], "body": "Behave" }
+    { "command": "KICK", "from": "op1", "to": "#general", "params": ["troll"], "body": ["Behave"] }
  ]
 }
--- a/schema/commands/NICK.json
+++ b/schema/commands/NICK.json
@@ -7,10 +7,16 @@
  "properties": {
    "command": { "const": "NICK" },
    "from": { "type": "string", "description": "Old nick (S2C)." },
-    "body": { "type": "string", "description": "New nick.", "minLength": 1, "maxLength": 32, "pattern": "^[a-zA-Z][a-zA-Z0-9_-]*$" }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "New nick (single-element array).",
+      "minItems": 1,
+      "maxItems": 1
+    }
  },
  "required": ["command", "body"],
  "examples": [
-    { "command": "NICK", "from": "oldnick", "body": "newnick" }
+    { "command": "NICK", "from": "oldnick", "body": ["newnick"] }
  ]
 }
--- a/schema/commands/NOTICE.json
+++ b/schema/commands/NOTICE.json
@@ -8,10 +8,14 @@
    "command": { "const": "NOTICE" },
    "from": { "type": "string" },
    "to": { "type": "string", "description": "Target: #channel, nick, or * (global)." },
-    "body": { "type": "string", "description": "Notice text." }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Notice text lines."
+    }
  },
  "required": ["command", "to", "body"],
  "examples": [
-    { "command": "NOTICE", "from": "server.example.com", "to": "*", "body": "Server restarting in 5 minutes" }
+    { "command": "NOTICE", "from": "server.example.com", "to": "*", "body": ["Server restarting in 5 minutes"] }
  ]
 }
--- a/schema/commands/PART.json
+++ b/schema/commands/PART.json
@@ -8,10 +8,15 @@
    "command": { "const": "PART" },
    "from": { "type": "string", "description": "Nick that left (S2C)." },
    "to": { "type": "string", "description": "Channel name.", "pattern": "^#[a-zA-Z0-9_-]+$" },
-    "body": { "type": "string", "description": "Optional part reason." }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Optional part reason.",
+      "maxItems": 1
+    }
  },
  "required": ["command", "to"],
  "examples": [
-    { "command": "PART", "from": "alice", "to": "#general", "body": "later" }
+    { "command": "PART", "from": "alice", "to": "#general", "body": ["later"] }
  ]
 }
--- a/schema/commands/PING.json
+++ b/schema/commands/PING.json
@@ -7,12 +7,14 @@
  "properties": {
    "command": { "const": "PING" },
    "body": {
-      "type": "string",
-      "description": "Opaque token to be echoed in PONG."
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Opaque token to be echoed in PONG (single-element array).",
+      "maxItems": 1
    }
  },
  "required": ["command"],
  "examples": [
-    { "command": "PING", "body": "1707580000" }
+    { "command": "PING", "body": ["1707580000"] }
  ]
 }
--- a/schema/commands/PONG.json
+++ b/schema/commands/PONG.json
@@ -6,17 +6,16 @@
  "$ref": "../message.json",
  "properties": {
    "command": { "const": "PONG" },
-    "from": {
-      "type": "string",
-      "description": "Responding server name."
-    },
+    "from": { "type": "string", "description": "Responding server name." },
    "body": {
-      "type": "string",
-      "description": "Echoed token from PING."
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Echoed token from PING (single-element array).",
+      "maxItems": 1
    }
  },
  "required": ["command"],
  "examples": [
-    { "command": "PONG", "from": "server.example.com", "body": "1707580000" }
+    { "command": "PONG", "from": "server.example.com", "body": ["1707580000"] }
  ]
 }
--- a/schema/commands/PRIVMSG.json
+++ b/schema/commands/PRIVMSG.json
@@ -8,11 +8,17 @@
    "command": { "const": "PRIVMSG" },
    "from": { "type": "string", "description": "Sender nick (set by server on relay)." },
    "to": { "type": "string", "description": "Target: #channel or nick.", "examples": ["#general", "alice"] },
-    "body": { "type": "string", "description": "Message text.", "minLength": 1 }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Message lines. One string per line.",
+      "minItems": 1
+    }
  },
  "required": ["command", "to", "body"],
  "examples": [
-    { "command": "PRIVMSG", "from": "bob", "to": "#general", "body": "hello world" },
-    { "command": "PRIVMSG", "from": "bob", "to": "alice", "body": "hey" }
+    { "command": "PRIVMSG", "from": "bob", "to": "#general", "body": ["hello world"] },
+    { "command": "PRIVMSG", "from": "bob", "to": "#general", "body": ["line one", "line two"] },
+    { "command": "PRIVMSG", "from": "bob", "to": "alice", "body": ["hey"], "meta": { "sig": "base64...", "alg": "ed25519" } }
  ]
 }
--- a/schema/commands/QUIT.json
+++ b/schema/commands/QUIT.json
@@ -7,10 +7,15 @@
  "properties": {
    "command": { "const": "QUIT" },
    "from": { "type": "string", "description": "Nick that quit." },
-    "body": { "type": "string", "description": "Optional quit reason." }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "Optional quit reason.",
+      "maxItems": 1
+    }
  },
  "required": ["command", "from"],
  "examples": [
-    { "command": "QUIT", "from": "alice", "body": "Connection reset" }
+    { "command": "QUIT", "from": "alice", "body": ["Connection reset"] }
  ]
 }
--- a/schema/commands/TOPIC.json
+++ b/schema/commands/TOPIC.json
@@ -8,10 +8,15 @@
    "command": { "const": "TOPIC" },
    "from": { "type": "string", "description": "Nick that changed the topic (S2C)." },
    "to": { "type": "string", "description": "Channel name.", "pattern": "^#[a-zA-Z0-9_-]+$" },
-    "body": { "type": "string", "description": "New topic text. Empty string clears the topic.", "maxLength": 512 }
+    "body": {
+      "type": "array",
+      "items": { "type": "string" },
+      "description": "New topic text (single-element array). Empty array clears the topic.",
+      "maxItems": 1
+    }
  },
  "required": ["command", "to"],
  "examples": [
-    { "command": "TOPIC", "from": "alice", "to": "#general", "body": "Welcome to the chat" }
+    { "command": "TOPIC", "from": "alice", "to": "#general", "body": ["Welcome to the chat"] }
  ]
 }
--- a/schema/message.json
+++ b/schema/message.json
@@ -6,8 +6,9 @@
  "type": "object",
  "properties": {
    "id": {
-      "type": "integer",
-      "description": "Server-assigned message ID, monotonically increasing. Present on all server-originated messages."
+      "type": "string",
+      "format": "uuid",
+      "description": "Server-assigned message UUID. Present on all server-originated messages."
    },
    "command": {
      "type": "string",
@@ -28,8 +29,19 @@
      "description": "Additional parameters (used primarily by numeric replies). Equivalent to IRC middle parameters."
    },
    "body": {
-      "type": "string",
-      "description": "Message body / trailing parameter. Equivalent to IRC trailing parameter (after the colon)."
+      "oneOf": [
+        {
+          "type": "array",
+          "items": { "type": "string" },
+          "description": "Array of strings (one per line for text messages)."
+        },
+        {
+          "type": "object",
+          "description": "Structured data (e.g. PUBKEY key material).",
+          "additionalProperties": true
+        }
+      ],
+      "description": "Message body. MUST be an array or object, never a raw string. Arrays represent lines of text; objects carry structured data. This enables deterministic canonicalization (RFC 8785 JCS) for signing."
    },
    "ts": {
      "type": "string",
@@ -38,7 +50,21 @@
    },
    "meta": {
      "type": "object",
-      "description": "Extensible metadata (signatures, rich content hints, etc.). Not present in original IRC.",
+      "description": "Extensible metadata. Used for signatures (meta.sig, meta.alg), hashes (meta.hash), and client extensions.",
+      "properties": {
+        "sig": {
+          "type": "string",
+          "description": "Base64-encoded cryptographic signature over the canonical message form."
+        },
+        "alg": {
+          "type": "string",
+          "description": "Signature algorithm (e.g. 'ed25519')."
+        },
+        "hash": {
+          "type": "string",
+          "description": "Hash of the canonical message form (e.g. 'sha256:base64...')."
+        }
+      },
      "additionalProperties": true
    }
  },
--- a/schema/numerics/001.json
+++ b/schema/numerics/001.json
@@ -2,19 +2,36 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/001.json",
  "title": "001 RPL_WELCOME",
-  "description": "Welcome message sent after successful session creation. RFC 2812 §5.1.",
+  "description": "Welcome message sent after successful session creation. RFC 2812 \u00a75.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "001" },
-    "to": { "type": "string", "description": "Target nick." },
+    "command": {
+      "const": "001"
+    },
+    "to": {
+      "type": "string",
+      "description": "Target nick."
+    },
    "body": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "Welcome text lines."
    }
  },
-  "required": ["command", "to", "body"],
+  "required": [
+    "command",
+    "to",
+    "body"
+  ],
  "examples": [
-    { "command": "001", "to": "alice", "body": ["Welcome to the network, alice"] }
+    {
+      "command": "001",
+      "to": "alice",
+      "body": [
+        "Welcome to the network, alice"
+      ]
+    }
  ]
 }
--- a/schema/numerics/002.json
+++ b/schema/numerics/002.json
@@ -2,19 +2,35 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/002.json",
  "title": "002 RPL_YOURHOST",
-  "description": "Server host info sent after session creation. RFC 2812 §5.1.",
+  "description": "Server host info sent after session creation. RFC 2812 \u00a75.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "002" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "002"
+    },
+    "to": {
+      "type": "string"
+    },
    "body": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "Host info lines."
    }
  },
-  "required": ["command", "to", "body"],
+  "required": [
+    "command",
+    "to",
+    "body"
+  ],
  "examples": [
-    { "command": "002", "to": "alice", "body": ["Your host is chat.example.com, running version 0.1.0"] }
+    {
+      "command": "002",
+      "to": "alice",
+      "body": [
+        "Your host is chat.example.com, running version 0.1.0"
+      ]
+    }
  ]
 }
--- a/schema/numerics/323.json
+++ b/schema/numerics/323.json
@@ -2,12 +2,26 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/323.json",
  "title": "323 RPL_LISTEND",
-  "description": "End of channel list. RFC 1459 §6.2.",
+  "description": "End of channel list. RFC 1459 \u00a76.2.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "323" },
-    "to": { "type": "string" },
-    "body": { "const": "End of /LIST" }
+    "command": {
+      "const": "323"
+    },
+    "to": {
+      "type": "string"
+    },
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "End of /LIST",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to"]
+  "required": [
+    "command",
+    "to"
+  ]
 }
--- a/schema/numerics/366.json
+++ b/schema/numerics/366.json
@@ -2,17 +2,34 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/366.json",
  "title": "366 RPL_ENDOFNAMES",
-  "description": "End of NAMES list. RFC 1459 §6.2.",
+  "description": "End of NAMES list. RFC 1459 \u00a76.2.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "366" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "366"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[channel]."
    },
-    "body": { "const": "End of /NAMES list" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "End of /NAMES list",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"]
+  "required": [
+    "command",
+    "to",
+    "params"
+  ]
 }
--- a/schema/numerics/376.json
+++ b/schema/numerics/376.json
@@ -2,12 +2,26 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/376.json",
  "title": "376 RPL_ENDOFMOTD",
-  "description": "End of MOTD. RFC 2812 §5.1.",
+  "description": "End of MOTD. RFC 2812 \u00a75.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "376" },
-    "to": { "type": "string" },
-    "body": { "const": "End of /MOTD command" }
+    "command": {
+      "const": "376"
+    },
+    "to": {
+      "type": "string"
+    },
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "End of /MOTD command",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to"]
+  "required": [
+    "command",
+    "to"
+  ]
 }
--- a/schema/numerics/401.json
+++ b/schema/numerics/401.json
@@ -2,20 +2,46 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/401.json",
  "title": "401 ERR_NOSUCHNICK",
-  "description": "No such nick/channel. RFC 1459 §6.1.",
+  "description": "No such nick/channel. RFC 1459 \u00a76.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "401" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "401"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[target_nick]."
    },
-    "body": { "const": "No such nick/channel" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "No such nick/channel",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"],
+  "required": [
+    "command",
+    "to",
+    "params"
+  ],
  "examples": [
-    { "command": "401", "to": "alice", "params": ["bob"], "body": "No such nick/channel" }
+    {
+      "command": "401",
+      "to": "alice",
+      "params": [
+        "bob"
+      ],
+      "body": [
+        "No such nick/channel"
+      ]
+    }
  ]
 }
--- a/schema/numerics/403.json
+++ b/schema/numerics/403.json
@@ -2,20 +2,46 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/403.json",
  "title": "403 ERR_NOSUCHCHANNEL",
-  "description": "No such channel. RFC 1459 §6.1.",
+  "description": "No such channel. RFC 1459 \u00a76.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "403" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "403"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[channel_name]."
    },
-    "body": { "const": "No such channel" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "No such channel",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"],
+  "required": [
+    "command",
+    "to",
+    "params"
+  ],
  "examples": [
-    { "command": "403", "to": "alice", "params": ["#nonexistent"], "body": "No such channel" }
+    {
+      "command": "403",
+      "to": "alice",
+      "params": [
+        "#nonexistent"
+      ],
+      "body": [
+        "No such channel"
+      ]
+    }
  ]
 }
--- a/schema/numerics/433.json
+++ b/schema/numerics/433.json
@@ -2,20 +2,46 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/433.json",
  "title": "433 ERR_NICKNAMEINUSE",
-  "description": "Nickname is already in use. RFC 1459 §6.1.",
+  "description": "Nickname is already in use. RFC 1459 \u00a76.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "433" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "433"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[requested_nick]."
    },
-    "body": { "const": "Nickname is already in use" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "Nickname is already in use",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"],
+  "required": [
+    "command",
+    "to",
+    "params"
+  ],
  "examples": [
-    { "command": "433", "to": "*", "params": ["alice"], "body": "Nickname is already in use" }
+    {
+      "command": "433",
+      "to": "*",
+      "params": [
+        "alice"
+      ],
+      "body": [
+        "Nickname is already in use"
+      ]
+    }
  ]
 }
--- a/schema/numerics/442.json
+++ b/schema/numerics/442.json
@@ -2,17 +2,34 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/442.json",
  "title": "442 ERR_NOTONCHANNEL",
-  "description": "You're not on that channel. RFC 1459 §6.1.",
+  "description": "You're not on that channel. RFC 1459 \u00a76.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "442" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "442"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[channel]."
    },
-    "body": { "const": "You're not on that channel" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "You're not on that channel",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"]
+  "required": [
+    "command",
+    "to",
+    "params"
+  ]
 }
--- a/schema/numerics/482.json
+++ b/schema/numerics/482.json
@@ -2,17 +2,34 @@
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://git.eeqj.de/sneak/chat/schema/numerics/482.json",
  "title": "482 ERR_CHANOPRIVSNEEDED",
-  "description": "You're not channel operator. RFC 1459 §6.1.",
+  "description": "You're not channel operator. RFC 1459 \u00a76.1.",
  "$ref": "../message.json",
  "properties": {
-    "command": { "const": "482" },
-    "to": { "type": "string" },
+    "command": {
+      "const": "482"
+    },
+    "to": {
+      "type": "string"
+    },
    "params": {
      "type": "array",
-      "items": { "type": "string" },
+      "items": {
+        "type": "string"
+      },
      "description": "[channel]."
    },
-    "body": { "const": "You're not channel operator" }
+    "body": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "description": "You're not channel operator",
+      "maxItems": 1
+    }
  },
-  "required": ["command", "to", "params"]
+  "required": [
+    "command",
+    "to",
+    "params"
+  ]
 }