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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41
schema/s2s/link.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2s/link.json",
"title": "S2S Link",
"description": "Server link establishment request/response.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"type": {
"const": "link"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Requesting server name."
},
"version": {
"type": "string",
"description": "Protocol version of the requesting server."
},
"auth": {
"type": "string",
"description": "HMAC signature over the link request using the shared federation key."
},
"capabilities": {
"type": "array",
"items": {
"type": "string"
},
"description": "List of supported protocol capabilities.",
"examples": [["relay", "sync", "presence"]]
}
},
"required": ["id", "type", "ts", "origin", "auth"]
}

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schema/s2s/ping.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2s/ping.json",
"title": "S2S Ping",
"description": "Inter-server keepalive.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"type": {
"const": "ping"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Pinging server."
},
"token": {
"type": "string",
"description": "Opaque token to be echoed in pong."
}
},
"required": ["id", "type", "ts", "origin"]
}

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schema/s2s/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/s2s/pong.json",
"title": "S2S Pong",
"description": "Inter-server keepalive response.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"type": {
"const": "pong"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Responding server."
},
"token": {
"type": "string",
"description": "Echoed token from the ping."
}
},
"required": ["id", "type", "ts", "origin"]
}

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schema/s2s/relay.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2s/relay.json",
"title": "S2S Relay",
"description": "A message relayed from a remote server in the federation.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid",
"description": "Message UUID, globally unique across the federation."
},
"type": {
"const": "relay"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Originating server name."
},
"message": {
"type": "object",
"description": "The original S2C message being relayed. Preserves the original type, from, channel, content, etc.",
"properties": {
"type": {
"type": "string"
},
"from": {
"type": "string"
},
"channel": {
"type": "string"
},
"content": {
"type": "string"
},
"ts": {
"type": "string",
"format": "date-time"
}
},
"required": ["type", "from"]
}
},
"required": ["id", "type", "ts", "origin", "message"]
}

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schema/s2s/sync.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2s/sync.json",
"title": "S2S Sync",
"description": "State synchronization between federated servers. Sent after link establishment to share channel and user state.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"type": {
"const": "sync"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Server sending the sync."
},
"channels": {
"type": "array",
"description": "Channels on the origin server.",
"items": {
"type": "object",
"properties": {
"name": {
"type": "string",
"pattern": "^#[a-zA-Z0-9_-]+$"
},
"topic": {
"type": "string"
},
"modes": {
"type": "string"
},
"members": {
"type": "array",
"items": {
"type": "string"
},
"description": "List of nicks in the channel."
}
},
"required": ["name"]
}
},
"users": {
"type": "array",
"description": "Users on the origin server.",
"items": {
"type": "object",
"properties": {
"nick": {
"type": "string"
},
"server": {
"type": "string",
"description": "Home server for this user."
}
},
"required": ["nick"]
}
}
},
"required": ["id", "type", "ts", "origin"]
}

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schema/s2s/unlink.json Normal file
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://git.eeqj.de/sneak/chat/schema/s2s/unlink.json",
"title": "S2S Unlink",
"description": "Server link teardown notification.",
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"type": {
"const": "unlink"
},
"ts": {
"type": "string",
"format": "date-time"
},
"origin": {
"type": "string",
"description": "Server initiating the unlink."
},
"reason": {
"type": "string",
"description": "Optional reason for the unlink.",
"examples": ["shutdown", "configuration change", "timeout"]
}
},
"required": ["id", "type", "ts", "origin"]
}