fix(discord): raise default media cap

CHANGELOG.md

@@ -235,6 +235,7 @@ Docs: https://docs.openclaw.ai
 - Matrix/streaming: add a quiet preview mode for streamed Matrix replies, keep legacy `partial` preview-first behavior, and finalize quiet media captions correctly so previews stop notifying early without dropping final text semantics. (#61450) Thanks @gumadeiras.
 - Gateway/shutdown: bound websocket-server shutdown even when no tracked clients remain, so gateway restarts stop hanging until the watchdog kills the process. (#61565) Thanks @mbelinky.
 - Control UI/multilingual: localize the remaining shared channel, instances, nodes, and gateway-confirmation strings so the dashboard stops mixing translated UI with hardcoded English labels. Thanks @vincentkoc.
+- Discord/media: raise the default inbound and outbound media cap to `100MB` so Discord matches Telegram more closely and larger attachments stop failing on the old low default.
 
 ## 2026.4.2
 

docs/channels/discord.md

@@ -1237,7 +1237,7 @@ High-signal Discord fields:
 - delivery: `textChunkLimit`, `chunkMode`, `maxLinesPerMessage`
 - streaming: `streaming` (legacy alias: `streamMode`), `draftChunk`, `blockStreaming`, `blockStreamingCoalesce`
 - media/retry: `mediaMaxMb`, `retry`
-  - `mediaMaxMb` caps outbound Discord uploads (default: `8MB`)
+  - `mediaMaxMb` caps outbound Discord uploads (default: `100MB`)
 - actions: `actions.*`
 - presence: `activity`, `status`, `activityType`, `activityUrl`
 - UI: `ui.components.accentColor`

docs/gateway/configuration-reference.md

@@ -220,7 +220,7 @@ WhatsApp runs through the gateway's web channel (Baileys Web). It starts automat
     discord: {
       enabled: true,
       token: "your-bot-token",
-      mediaMaxMb: 8,
+      mediaMaxMb: 100,
       allowBots: false,
       actions: {
         reactions: true,

extensions/discord/src/monitor/provider.ts

@@ -94,6 +94,8 @@ export type MonitorDiscordOpts = {
   setStatus?: DiscordMonitorStatusSink;
 };
 
+const DEFAULT_DISCORD_MEDIA_MAX_MB = 100;
+
 type DiscordVoiceManager = import("../voice/manager.js").DiscordVoiceManager;
 
 type DiscordVoiceRuntimeModule = typeof import("../voice/manager.runtime.js");
@@ -613,7 +615,8 @@ export async function monitorDiscordProvider(opts: MonitorDiscordOpts = {}) {
     log: (message) => runtime.log?.(warn(message)),
   });
   let allowFrom = discordCfg.allowFrom ?? dmConfig?.allowFrom;
-  const mediaMaxBytes = (opts.mediaMaxMb ?? discordCfg.mediaMaxMb ?? 8) * 1024 * 1024;
+  const mediaMaxBytes =
+    (opts.mediaMaxMb ?? discordCfg.mediaMaxMb ?? DEFAULT_DISCORD_MEDIA_MAX_MB) * 1024 * 1024;
   const textLimit = resolveTextChunkLimit(cfg, "discord", account.accountId, {
     fallbackLimit: 2000,
   });

extensions/discord/src/send.outbound.ts

@@ -67,6 +67,8 @@ type DiscordSendOpts = {
 
 type DiscordClientRequest = ReturnType<typeof createDiscordClient>["request"];
 
+const DEFAULT_DISCORD_MEDIA_MAX_MB = 100;
+
 type DiscordChannelMessageResult = {
   id?: string | null;
   channel_id?: string | null;
@@ -155,7 +157,7 @@ export async function sendMessageDiscord(
   const mediaMaxBytes =
     typeof accountInfo.config.mediaMaxMb === "number"
       ? accountInfo.config.mediaMaxMb * 1024 * 1024
-      : 8 * 1024 * 1024;
+      : DEFAULT_DISCORD_MEDIA_MAX_MB * 1024 * 1024;
   const textWithTables = convertMarkdownTables(text ?? "", tableMode);
   const textWithMentions = rewriteDiscordKnownMentions(textWithTables, {
     accountId: accountInfo.accountId,

extensions/discord/src/send.sends-basic-channel-messages.test.ts

@@ -316,7 +316,7 @@ describe("sendMessageDiscord", () => {
     );
     expect(loadWebMedia).toHaveBeenCalledWith(
       "file:///tmp/photo.jpg",
-      expect.objectContaining({ maxBytes: 8 * 1024 * 1024 }),
+      expect.objectContaining({ maxBytes: 100 * 1024 * 1024 }),
     );
   });