diff --git a/src/app/commands.ts b/src/app/commands.ts
index 36534de0..3d511f7f 100644
--- a/src/app/commands.ts
+++ b/src/app/commands.ts
@@ -1,6 +1,8 @@
 import * as nip19 from "nostr-tools/nip19"
 import {get} from "svelte/store"
 import {randomId, ifLet, poll, uniq, equals} from "@welshman/lib"
+import type {Feed} from "@welshman/feeds"
+import type {TrustedEvent, EventContent, EventTemplate} from "@welshman/util"
 import {
   DELETE,
   REPORT,
@@ -28,11 +30,9 @@ import {
   getRelayTags,
   getRelayTagValues,
   toNostrURI,
-  unionFilters,
   getRelaysFromList,
   RelayMode,
 } from "@welshman/util"
-import type {TrustedEvent, Filter, EventContent, EventTemplate} from "@welshman/util"
 import {Pool, PublishStatus, AuthStatus, SocketStatus} from "@welshman/net"
 import {Nip59, stamp} from "@welshman/signer"
 import {Router} from "@welshman/router"
@@ -431,19 +431,20 @@ export const publishComment = ({relays, ...params}: CommentParams & {relays: str
   publishThunk({event: makeComment(params), relays})
 
 export type AlertParams = {
+  feed: Feed
   cron: string
   email: string
-  relay: string
-  filters: Filter[]
   bunker: string
   secret: string
+  description: string
 }
 
-export const makeAlert = async ({cron, email, relay, filters, bunker, secret}: AlertParams) => {
+export const makeAlert = async ({cron, email, feed, bunker, secret, description}: AlertParams) => {
   const tags = [
+    ["feed", JSON.stringify(feed)],
     ["cron", cron],
     ["email", email],
-    ["relay", relay],
+    ["description", description],
     ["channel", "email"],
     [
       "handler",
@@ -453,10 +454,6 @@ export const makeAlert = async ({cron, email, relay, filters, bunker, secret}: A
     ],
   ]
 
-  for (const filter of unionFilters(filters)) {
-    tags.push(["filter", JSON.stringify(filter)])
-  }
-
   if (bunker) {
     tags.push(["nip46", secret, bunker])
   }
diff --git a/src/app/components/AlertAdd.svelte b/src/app/components/AlertAdd.svelte
index 49711647..0ea2ddef 100644
--- a/src/app/components/AlertAdd.svelte
+++ b/src/app/components/AlertAdd.svelte
@@ -1,9 +1,10 @@
 <script lang="ts">
   import {preventDefault} from "@lib/html"
-  import {randomInt, TIMEZONE} from "@welshman/lib"
+  import {randomInt, displayList, TIMEZONE} from "@welshman/lib"
   import {displayRelayUrl, THREAD, MESSAGE, EVENT_TIME, COMMENT} from "@welshman/util"
   import type {Filter} from "@welshman/util"
   import type {Nip46ResponseWithResult} from "@welshman/signer"
+  import {makeIntersectionFeed, makeRelayFeed, feedFromFilters} from "@welshman/feeds"
   import {pubkey} from "@welshman/app"
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
@@ -82,18 +83,22 @@
     }
 
     const filters: Filter[] = []
+    const display: string[] = []
 
     if (notifyThreads) {
+      display.push("threads")
       filters.push({kinds: [THREAD]})
       filters.push({kinds: [COMMENT], "#k": [String(THREAD)]})
     }
 
     if (notifyCalendar) {
+      display.push("calendar events")
       filters.push({kinds: [EVENT_TIME]})
       filters.push({kinds: [COMMENT], "#k": [String(EVENT_TIME)]})
     }
 
     if (notifyChat) {
+      display.push("chat")
       filters.push({
         kinds: [MESSAGE],
         "#h": [GENERAL, ...getMembershipRoomsByUrl(relay, $userMembership)],
@@ -103,7 +108,10 @@
     loading = true
 
     try {
-      const thunk = await publishAlert({cron, email, relay, filters, bunker, secret})
+      const cadence = cron?.endsWith("1") ? "Weekly" : "Daily"
+      const description = `${cadence} alert for ${displayList(display)} on ${displayRelayUrl(relay)}, sent via email.`
+      const feed = makeIntersectionFeed(feedFromFilters(filters), makeRelayFeed(relay))
+      const thunk = await publishAlert({cron, email, feed, bunker, secret, description})
 
       await thunk.result
       await loadAlertStatuses($pubkey!)
diff --git a/src/app/components/AlertItem.svelte b/src/app/components/AlertItem.svelte
index 96fdb52f..de87f034 100644
--- a/src/app/components/AlertItem.svelte
+++ b/src/app/components/AlertItem.svelte
@@ -1,21 +1,12 @@
 <script lang="ts">
-  import {parseJson, displayList, nthEq} from "@welshman/lib"
-  import {
-    getAddress,
-    getTagValue,
-    getTagValues,
-    displayRelayUrl,
-    EVENT_TIME,
-    MESSAGE,
-    THREAD,
-  } from "@welshman/util"
-  import Link from "@lib/components/Link.svelte"
+  import {parseJson, nthEq} from "@welshman/lib"
+  import {displayFeeds} from "@welshman/feeds"
+  import {getAddress, getTagValue, getTagValues} from "@welshman/util"
   import Icon from "@lib/components/Icon.svelte"
   import Button from "@lib/components/Button.svelte"
   import AlertDelete from "@app/components/AlertDelete.svelte"
   import type {Alert} from "@app/state"
   import {alertStatuses} from "@app/state"
-  import {makeSpacePath} from "@app/routes"
   import {pushModal} from "@app/modal"
 
   type Props = {
@@ -28,17 +19,15 @@
   const status = $derived($alertStatuses.find(s => s.event.tags.some(nthEq(1, address))))
   const cron = $derived(getTagValue("cron", alert.tags))
   const channel = $derived(getTagValue("channel", alert.tags))
-  const relay = $derived(getTagValue("relay", alert.tags)!)
-  const filters = $derived(getTagValues("filter", alert.tags).map(parseJson))
-  const types = $derived.by(() => {
-    const t: string[] = []
-
-    if (filters.some(f => f.kinds?.includes(THREAD))) t.push("threads")
-    if (filters.some(f => f.kinds?.includes(EVENT_TIME))) t.push("calendar events")
-    if (filters.some(f => f.kinds?.includes(MESSAGE))) t.push("chat")
-
-    return t
-  })
+  const feeds = $derived(getTagValues("feed", alert.tags))
+  const description = $derived(
+    getTagValue("description", alert.tags) ||
+      [
+        `${cron?.endsWith("1") ? "Weekly" : "Daily"} alert for events`,
+        displayFeeds(feeds.map(parseJson)),
+        `sent via ${channel}.`,
+      ].join(" "),
+  )
 
   const startDelete = () => pushModal(AlertDelete, {alert})
 </script>
@@ -48,13 +37,7 @@
     <Button class="py-1" onclick={startDelete}>
       <Icon icon="trash-bin-2" />
     </Button>
-    <div class="flex-inline gap-1">
-      {cron?.endsWith("1") ? "Weekly" : "Daily"} alert for
-      {displayList(types)} on
-      <Link class="link" href={makeSpacePath(relay)}>
-        {displayRelayUrl(relay)}
-      </Link>, sent via {channel}.
-    </div>
+    <div class="flex-inline gap-1">{description}</div>
   </div>
   {#if status}
     {@const statusText = getTagValue("status", status.tags) || "error"}