> ## Documentation Index
> Fetch the complete documentation index at: https://docs.photon.codes/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Use Stable documentation by default. Honor an explicit Beta request or a URL under /docs/beta/. If the requested version conflicts with the installed CLI package or API origin, clarify the target before writing integration code.
> Pages under /docs/beta/ document Beta; other product pages document Stable. Keep the CLI package, commands, API origin, and credentials within the selected version. State the documentation version in your answer.
> For MCP search, always pass version: Stable or version: Beta. Unfiltered search mixes both versions. For filesystem reads, keep Beta queries under /beta/ and exclude /beta/ from Stable queries; discover paths before reading them.
> The public docs base is https://photon.codes/docs. Convert MCP page paths to public URLs under that base, preserving /beta/ when present. Read https://photon.codes/docs/skill.md for version selection and https://photon.codes/docs/llms.txt for the version indexes.

# MessageEvent

```typescript
type MessageEvent = EventContext & { message: Message; sequence: number; type: "message.received" } | EventContext & { content: Message["content"]; editedAt: Date; messageGuid: string; sequence: number; type: "message.edited" } | EventContext & { messageGuid: string; readAt: Date; sequence: number; type: "message.read" } | EventContext & { messageGuid: string; retractedAt: Date; sequence: number; type: "message.unsent" } | EventContext & { messageGuid: string; reaction: MessageReaction; sequence: number; targetPartIndex: number; type: "message.reactionAdded" } | EventContext & { messageGuid: string; reaction: MessageReaction; sequence: number; targetPartIndex: number; type: "message.reactionRemoved" } | EventContext & { messageGuid: string; placement: StickerPlacement; sequence: number; sticker: Message["placedStickers"][number]["sticker"]; targetPartIndex: number; type: "message.stickerPlaced" }
```


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