diff --git a/CHANGELOG.md b/CHANGELOG.md
index df916c37a..c9a79493f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,7 +22,7 @@
 - UI: add optional `ui.seamColor` accent to tint the Talk Mode side bubble (macOS/iOS/Android).
 - Nix mode: opt-in declarative config + read-only settings UI when `CLAWDIS_NIX_MODE=1` (thanks @joshp123 for the persistence — earned my trust; I'll merge these going forward).
 - Agent runtime: accept legacy `Z_AI_API_KEY` for Z.AI provider auth (maps to `ZAI_API_KEY`).
-- Groups: add per-group mention gating defaults/overrides for Telegram/WhatsApp/iMessage via `*.groups` with `"*"` defaults.
+- Groups: add per-group mention gating defaults/overrides for Telegram/WhatsApp/iMessage via `*.groups` with `"*"` defaults; Discord now supports `discord.guilds."*"` as a default.
 - Discord: add user-installed slash command handling with per-user sessions and auto-registration (#94) — thanks @thewilloftheshadow.
 - Discord: add DM enable/allowlist plus guild channel/user/guild allowlists with id/name matching.
 - Signal: add `signal-cli` JSON-RPC support for send/receive via the Signal provider.
diff --git a/docs/configuration.md b/docs/configuration.md
index 014b0915a..be6c2cf1c 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -208,6 +208,7 @@ Configure the Discord bot by setting the bot token and optional gating:
       groupChannels: ["clawd-dm"]          // optional group DM allowlist
     },
     guilds: {
+      "*": { requireMention: true },       // default per-guild mention gating
       "123456789012345678": {               // guild id (preferred) or slug
         slug: "friends-of-clawd",
         requireMention: false,              // per-guild default
@@ -225,6 +226,7 @@ Configure the Discord bot by setting the bot token and optional gating:
 
 Clawdis starts Discord only when a `discord` config section exists. The token is resolved from `DISCORD_BOT_TOKEN` or `discord.token` (unless `discord.enabled` is `false`). Use `user:<id>` (DM) or `channel:<id>` (guild channel) when specifying delivery targets for cron/CLI commands.
 Guild slugs are lowercase with spaces replaced by `-`; channel keys use the slugged channel name (no leading `#`). Prefer guild ids as keys to avoid rename ambiguity.
+Use `discord.guilds."*"` for default per-guild settings.
 
 ### `imessage` (imsg CLI)
 
diff --git a/docs/discord.md b/docs/discord.md
index 7851c620e..9c6a4b139 100644
--- a/docs/discord.md
+++ b/docs/discord.md
@@ -63,6 +63,7 @@ Note: Guild context `[from:]` lines include `author.tag` + `id` to make ping-rea
       groupChannels: ["clawd-dm"]
     },
     guilds: {
+      "*": { requireMention: true },
       "123456789012345678": {
         slug: "friends-of-clawd",
         requireMention: false,
@@ -82,6 +83,7 @@ Note: Guild context `[from:]` lines include `author.tag` + `id` to make ping-rea
 - `dm.groupEnabled`: enable group DMs (default `false`).
 - `dm.groupChannels`: optional allowlist for group DM channel ids or slugs.
 - `guilds`: per-guild rules keyed by guild id (preferred) or slug.
+- `guilds."*"`: default per-guild settings applied when no explicit entry exists.
 - `guilds.<id>.slug`: optional friendly slug used for display names.
 - `guilds.<id>.users`: optional per-guild user allowlist (ids or names).
 - `guilds.<id>.channels`: channel rules (keys are channel slugs or ids).
diff --git a/docs/groups.md b/docs/groups.md
index 5c5fe3983..d63014ad3 100644
--- a/docs/groups.md
+++ b/docs/groups.md
@@ -51,6 +51,7 @@ Group messages require a mention unless overridden per group. Defaults live per
 Notes:
 - `mentionPatterns` are case-insensitive regexes.
 - Surfaces that provide explicit mentions still pass; patterns are a fallback.
+- Discord defaults live in `discord.guilds."*"` (overridable per guild/channel).
 
 ## Activation (owner-only)
 Group owners can toggle per-group activation:
diff --git a/src/discord/monitor.test.ts b/src/discord/monitor.test.ts
index 5d1d087d5..220fb14a7 100644
--- a/src/discord/monitor.test.ts
+++ b/src/discord/monitor.test.ts
@@ -75,6 +75,18 @@ describe("discord guild/channel resolution", () => {
     expect(resolved?.slug).toBe("friends-of-clawd");
   });
 
+  it("falls back to wildcard guild entry", () => {
+    const guildEntries = makeEntries({
+      "*": { requireMention: false },
+    });
+    const resolved = resolveDiscordGuildEntry({
+      guild: fakeGuild("123", "Friends of Clawd"),
+      guildEntries,
+    });
+    expect(resolved?.id).toBe("123");
+    expect(resolved?.requireMention).toBe(false);
+  });
+
   it("resolves channel config by slug", () => {
     const guildInfo: DiscordGuildEntryResolved = {
       channels: {
diff --git a/src/discord/monitor.ts b/src/discord/monitor.ts
index 13bdf052d..c34c338ec 100644
--- a/src/discord/monitor.ts
+++ b/src/discord/monitor.ts
@@ -833,6 +833,16 @@ export function resolveDiscordGuildEntry(params: {
       channels: entry.channels,
     };
   }
+  const wildcard = guildEntries["*"];
+  if (wildcard) {
+    return {
+      id: guildId,
+      slug: wildcard.slug ?? guildSlug,
+      requireMention: wildcard.requireMention,
+      users: wildcard.users,
+      channels: wildcard.channels,
+    };
+  }
   return null;
 }