docs: add JSON Schema definitions for all message types (draft 2020-12)

C2S (7): send, join, part, nick, topic, mode, ping
S2C (12): message, dm, notice, join, part, quit, nick, topic, mode, system, error, pong
S2S (6): relay, link, unlink, sync, ping, pong

Each message type has its own schema file under schema/{c2s,s2c,s2s}/.
schema/README.md provides an index of all types with descriptions.
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2026-02-10 10:25:42 -08:00
parent 6483670dc7
commit 065b243def
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37
schema/s2c/dm.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/dm.json",
"title": "S2C Direct Message",
"description": "A direct message delivered via the unified message stream.",
"type": "object",
"properties": {
"id": {
"type": "integer",
"description": "Server-assigned message ID."
},
"type": {
"const": "dm"
},
"ts": {
"type": "string",
"format": "date-time"
},
"from": {
"type": "string",
"description": "Sender nick."
},
"to": {
"type": "string",
"description": "Recipient nick."
},
"content": {
"type": "string",
"description": "Message body."
},
"meta": {
"type": "object",
"additionalProperties": true
}
},
"required": ["id", "type", "ts", "from", "to", "content"]
}

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schema/s2c/error.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/error.json",
"title": "S2C Error",
"description": "Error message delivered via the message stream.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "error"
},
"ts": {
"type": "string",
"format": "date-time"
},
"code": {
"type": "string",
"description": "Machine-readable error code.",
"examples": ["nick_in_use", "no_such_channel", "not_on_channel", "permission_denied"]
},
"content": {
"type": "string",
"description": "Human-readable error message."
},
"channel": {
"type": "string",
"description": "Related channel, if applicable."
}
},
"required": ["id", "type", "ts", "code", "content"]
}

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schema/s2c/join.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/join.json",
"title": "S2C Join",
"description": "A user joined a channel.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "join"
},
"ts": {
"type": "string",
"format": "date-time"
},
"nick": {
"type": "string",
"description": "The nick that joined."
},
"channel": {
"type": "string",
"description": "The channel joined.",
"pattern": "^#[a-zA-Z0-9_-]+$"
}
},
"required": ["id", "type", "ts", "nick", "channel"]
}

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schema/s2c/message.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/message.json",
"title": "S2C Message",
"description": "A channel message delivered via the unified message stream.",
"type": "object",
"properties": {
"id": {
"type": "integer",
"description": "Server-assigned message ID, monotonically increasing."
},
"type": {
"const": "message"
},
"ts": {
"type": "string",
"format": "date-time",
"description": "Server-assigned timestamp (ISO 8601)."
},
"from": {
"type": "string",
"description": "Sender nick."
},
"channel": {
"type": "string",
"description": "Channel the message was sent to.",
"pattern": "^#[a-zA-Z0-9_-]+$"
},
"content": {
"type": "string",
"description": "Message body."
},
"meta": {
"type": "object",
"description": "Extensible metadata (signatures, rich content, etc.).",
"additionalProperties": true
}
},
"required": ["id", "type", "ts", "from", "channel", "content"]
}

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schema/s2c/mode.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/mode.json",
"title": "S2C Mode",
"description": "A channel or user mode was changed.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "mode"
},
"ts": {
"type": "string",
"format": "date-time"
},
"nick": {
"type": "string",
"description": "The nick that set the mode."
},
"channel": {
"type": "string",
"pattern": "^#[a-zA-Z0-9_-]+$"
},
"mode": {
"type": "string",
"description": "Mode string applied (e.g. +o, -m).",
"pattern": "^[+-][a-zA-Z]+$"
},
"target": {
"type": "string",
"description": "Target nick for user modes. Absent for channel modes."
}
},
"required": ["id", "type", "ts", "nick", "channel", "mode"]
}

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schema/s2c/nick.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/nick.json",
"title": "S2C Nick",
"description": "A user changed their nickname.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "nick"
},
"ts": {
"type": "string",
"format": "date-time"
},
"oldNick": {
"type": "string",
"description": "Previous nickname."
},
"newNick": {
"type": "string",
"description": "New nickname."
}
},
"required": ["id", "type", "ts", "oldNick", "newNick"]
}

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schema/s2c/notice.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/notice.json",
"title": "S2C Notice",
"description": "A server notice. May be targeted to a channel or user, or global.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "notice"
},
"ts": {
"type": "string",
"format": "date-time"
},
"from": {
"type": "string",
"description": "Origin (server name or nick)."
},
"channel": {
"type": "string",
"description": "Target channel, if channel-scoped."
},
"content": {
"type": "string",
"description": "Notice text."
}
},
"required": ["id", "type", "ts", "content"]
}

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schema/s2c/part.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/part.json",
"title": "S2C Part",
"description": "A user left a channel.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "part"
},
"ts": {
"type": "string",
"format": "date-time"
},
"nick": {
"type": "string",
"description": "The nick that left."
},
"channel": {
"type": "string",
"pattern": "^#[a-zA-Z0-9_-]+$"
},
"reason": {
"type": "string",
"description": "Optional part reason."
}
},
"required": ["id", "type", "ts", "nick", "channel"]
}

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schema/s2c/pong.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/pong.json",
"title": "S2C Pong",
"description": "Keepalive response to a client ping.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "pong"
},
"ts": {
"type": "string",
"format": "date-time"
},
"token": {
"type": "string",
"description": "Echoed token from the client's ping, if provided."
}
},
"required": ["id", "type", "ts"]
}

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schema/s2c/quit.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/quit.json",
"title": "S2C Quit",
"description": "A user disconnected from the server.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "quit"
},
"ts": {
"type": "string",
"format": "date-time"
},
"nick": {
"type": "string",
"description": "The nick that quit."
},
"reason": {
"type": "string",
"description": "Optional quit reason."
}
},
"required": ["id", "type", "ts", "nick"]
}

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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/system.json",
"title": "S2C System",
"description": "Server system message (MOTD, maintenance notices, etc.).",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "system"
},
"ts": {
"type": "string",
"format": "date-time"
},
"content": {
"type": "string",
"description": "System message text."
},
"code": {
"type": "string",
"description": "Optional machine-readable system message code.",
"examples": ["motd", "maintenance", "server_restart"]
}
},
"required": ["id", "type", "ts", "content"]
}

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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2c/topic.json",
"title": "S2C Topic",
"description": "A channel topic was changed.",
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"type": {
"const": "topic"
},
"ts": {
"type": "string",
"format": "date-time"
},
"nick": {
"type": "string",
"description": "The nick that changed the topic."
},
"channel": {
"type": "string",
"pattern": "^#[a-zA-Z0-9_-]+$"
},
"topic": {
"type": "string",
"description": "New topic text."
}
},
"required": ["id", "type", "ts", "nick", "channel", "topic"]
}