diff --git a/signal-reaction-debug.md b/signal-reaction-debug.md
new file mode 100644
index 000000000..79999f09e
--- /dev/null
+++ b/signal-reaction-debug.md
@@ -0,0 +1,28 @@
+Signal reaction notifications ("own" mode) investigation
+
+Context
+- Code path: `src/signal/monitor.ts` handles reaction-only envelopes and calls `enqueueSystemEvent`.
+- Default mode is "own" in config, which should notify when someone reacts to a message authored by the bot account.
+
+Findings
+- Signal reaction handling only runs when `envelope.reactionMessage` is present and `dataMessage` is absent. If signal-cli includes `reactionMessage` alongside `dataMessage`, the reaction is ignored because the handler only runs in the `reactionMessage && !dataMessage` branch.
+- `resolveSignalReactionTarget()` prefers `targetAuthorUuid` over `targetAuthor`. If signal-cli includes both (common for sender identity fields), the target becomes `kind: "uuid"`, even when a phone number is also present.
+- In "own" mode, `shouldEmitSignalReactionNotification()` compares the configured `signal.account` string against the target. With a phone-configured account (e.g., `+14154668323`) and a UUID target, the check fails.
+- The tests in `src/signal/monitor.tool-result.test.ts` only cover reaction payloads with `targetAuthor` (phone), so UUID-first handling is not exercised.
+- Discord "own" mode compares `messageAuthorId` to `botUserId` (`shouldEmitDiscordReactionNotification`), which is strictly an ID match. The Signal implementation mirrors this pattern, but the target identity type mismatch (UUID vs E.164) breaks the comparison.
+
+Likely root cause
+- Signal-cli reaction payloads appear to include `targetAuthorUuid` even when `targetAuthor` (phone) is present. Because `resolveSignalReactionTarget()` always prefers UUID, "own" mode never matches when `signal.account` is configured as E.164, causing no notification.
+
+Secondary risk
+- If signal-cli includes `reactionMessage` alongside `dataMessage` (instead of reaction-only envelopes), the current handler never emits system events for reactions.
+
+Debug logging to confirm (if needed)
+- Add a verbose log around the reaction handler to capture the identity fields and decision:
+  - `targetAuthor`, `targetAuthorUuid`, computed `target.kind/id`, `account`, `mode`, and `shouldNotify`.
+  - Log when `reactionMessage` is present but `dataMessage` is also present to verify whether reactions arrive as combined payloads.
+
+Suggested fixes (not applied)
+- When mode is "own", compare the configured account against both `targetAuthor` (normalized E.164) and `targetAuthorUuid`, rather than selecting UUID first.
+- Or, in `resolveSignalReactionTarget()`, if both values exist and the configured account is a phone number, prefer `targetAuthor` over UUID for the "own" check.
+- Consider emitting reaction notifications even if `reactionMessage` and `dataMessage` coexist (guarded to avoid double-processing).
diff --git a/src/signal/monitor.tool-result.test.ts b/src/signal/monitor.tool-result.test.ts
index 0ba6eb130..b9a6a24bf 100644
--- a/src/signal/monitor.tool-result.test.ts
+++ b/src/signal/monitor.tool-result.test.ts
@@ -249,6 +249,60 @@ describe("monitorSignalProvider tool results", () => {
     );
   });
 
+  it("notifies on own reactions when target includes uuid + phone", async () => {
+    config = {
+      ...config,
+      signal: {
+        autoStart: false,
+        dmPolicy: "open",
+        allowFrom: ["*"],
+        account: "+15550002222",
+        reactionNotifications: "own",
+      },
+    };
+    const abortController = new AbortController();
+
+    streamMock.mockImplementation(async ({ onEvent }) => {
+      const payload = {
+        envelope: {
+          sourceNumber: "+15550001111",
+          sourceName: "Ada",
+          timestamp: 1,
+          reactionMessage: {
+            emoji: "✅",
+            targetAuthor: "+15550002222",
+            targetAuthorUuid: "123e4567-e89b-12d3-a456-426614174000",
+            targetSentTimestamp: 2,
+          },
+        },
+      };
+      await onEvent({
+        event: "receive",
+        data: JSON.stringify(payload),
+      });
+      abortController.abort();
+    });
+
+    await monitorSignalProvider({
+      autoStart: false,
+      baseUrl: "http://127.0.0.1:8080",
+      abortSignal: abortController.signal,
+    });
+
+    await flush();
+
+    const route = resolveAgentRoute({
+      cfg: config as ClawdbotConfig,
+      provider: "signal",
+      accountId: "default",
+      peer: { kind: "dm", id: normalizeE164("+15550001111") },
+    });
+    const events = peekSystemEvents(route.sessionKey);
+    expect(events.some((text) => text.includes("Signal reaction added"))).toBe(
+      true,
+    );
+  });
+
   it("processes messages when reaction metadata is present", async () => {
     const abortController = new AbortController();
     replyMock.mockResolvedValue({ text: "pong" });
diff --git a/src/signal/monitor.ts b/src/signal/monitor.ts
index a5fab8022..30e34964a 100644
--- a/src/signal/monitor.ts
+++ b/src/signal/monitor.ts
@@ -124,36 +124,42 @@ type SignalReactionTarget = {
   display: string;
 };
 
-function resolveSignalReactionTarget(
+function resolveSignalReactionTargets(
   reaction: SignalReactionMessage,
-): SignalReactionTarget | null {
+): SignalReactionTarget[] {
+  const targets: SignalReactionTarget[] = [];
   const uuid = reaction.targetAuthorUuid?.trim();
   if (uuid) {
-    return { kind: "uuid", id: uuid, display: `uuid:${uuid}` };
+    targets.push({ kind: "uuid", id: uuid, display: `uuid:${uuid}` });
   }
   const author = reaction.targetAuthor?.trim();
-  if (!author) return null;
-  const normalized = normalizeE164(author);
-  return { kind: "phone", id: normalized, display: normalized };
+  if (author) {
+    const normalized = normalizeE164(author);
+    targets.push({ kind: "phone", id: normalized, display: normalized });
+  }
+  return targets;
 }
 
 function shouldEmitSignalReactionNotification(params: {
   mode?: SignalReactionNotificationMode;
   account?: string | null;
-  target?: SignalReactionTarget | null;
+  targets?: SignalReactionTarget[];
   sender?: ReturnType<typeof resolveSignalSender> | null;
   allowlist?: string[];
 }) {
-  const { mode, account, target, sender, allowlist } = params;
+  const { mode, account, targets, sender, allowlist } = params;
   const effectiveMode = mode ?? "own";
   if (effectiveMode === "off") return false;
   if (effectiveMode === "own") {
     const accountId = account?.trim();
-    if (!accountId || !target) return false;
-    if (target.kind === "uuid") {
-      return accountId === target.id || accountId === `uuid:${target.id}`;
-    }
-    return normalizeE164(accountId) === target.id;
+    if (!accountId || !targets || targets.length === 0) return false;
+    const normalizedAccount = normalizeE164(accountId);
+    return targets.some((target) => {
+      if (target.kind === "uuid") {
+        return accountId === target.id || accountId === `uuid:${target.id}`;
+      }
+      return normalizedAccount === target.id;
+    });
   }
   if (effectiveMode === "allowlist") {
     if (!sender || !allowlist || allowlist.length === 0) return false;
@@ -401,11 +407,11 @@ export async function monitorSignalProvider(
         const senderDisplay = formatSignalSenderDisplay(sender);
         const senderName = envelope.sourceName ?? senderDisplay;
         logVerbose(`signal reaction: ${emojiLabel} from ${senderName}`);
-        const target = resolveSignalReactionTarget(reaction);
+        const targets = resolveSignalReactionTargets(reaction);
         const shouldNotify = shouldEmitSignalReactionNotification({
           mode: reactionMode,
           account,
-          target,
+          targets,
           sender,
           allowlist: reactionAllowlist,
         });
@@ -433,7 +439,7 @@ export async function monitorSignalProvider(
           emojiLabel,
           actorLabel: senderName,
           messageId,
-          targetLabel: target?.display,
+          targetLabel: targets[0]?.display,
           groupLabel,
         });
         const senderId = formatSignalSenderId(sender);