fix(discord): add Partials.Channel to gateway client for DM support

[iamtraction]

The Discord adapter's runGatewayListener creates a discord.js Client with GatewayIntentBits.DirectMessages but without Partials.Channel. discord.js requires this partial to receive DM events. Without it, DM MessageCreate events are silently dropped.

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[haydenbleasel]

Investigated this and can confirm the fix is correct. Here's the evidence:

The mechanism (discord.js v14 source)

MessageCreate.js does this when a message arrives:

const channel = this.getChannel({ id: data.channel_id, ... });
if (channel) {
  // ... emit Events.MessageCreate
}

Action.js's getPayload (which getChannel calls) does:

getPayload(data, manager, id, partialType, cache) {
  return this.client.options.partials.includes(partialType)
    ? manager._add(data, cache)    // Partials.Channel enabled → construct channel
    : manager.cache.get(id);       // Not enabled → lookup cache (returns undefined for DMs)
}

Discord's API stopped sending CHANNEL_CREATE for DM channels, so they're never in the cache. Without Partials.Channel, getPayload returns undefined, the if (channel) check fails, and the event is silently dropped — no error, no warning.

Maintainer confirmation

• discord.js#5516 — monbrey (discord.js team): "The v8 Discord API/gateway does not emit CHANNEL_CREATE for DM Channels. As a result, they don't exist in discord.js cache and messages won't emit for them. Enabling the CHANNEL partial should fix the issue."

• discord.js#7699 — monbrey: "DM channels don't fire the channelCreate event which means they don't get placed in the discord.js cache. As the channel is uncached, messageCreate events for it won't fire unless you enable the Channel partial also."

• discord.js#7487 — kyranet (discord.js team) in the design roadmap: "Discord stopped sending us DM channels during the READY dispatch... if somebody wanted to receive messages from DMs, not only they would need to specify the intent, but they would need to find out that a second step is needed: specifying Partials.Channels."

TL;DR

Both GatewayIntentBits.DirectMessages and Partials.Channel are required. The current code has the intent but not the partial, so DM events are silently dropped at runtime. Types and builds pass fine because it's a runtime cache lookup issue, not a type error. Fix is correct and minimal.

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
chat	Ignored	Open in v0	Mar 1, 2026 2:56am

[haydenbleasel]

Thanks @iamtraction great catch 🙏