diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ca280aff..e48279137 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ Docs: https://docs.clawd.bot
 ### Changes
 - Memory: add OpenAI Batch API indexing for embeddings when configured.
 - Memory: enable OpenAI batch indexing by default for OpenAI embeddings.
+- Sessions: persist origin metadata across connectors for generic session explainers.
 
 ### Fixes
 - Memory: retry transient 5xx errors (Cloudflare) during embedding indexing.
diff --git a/docs/concepts/session.md b/docs/concepts/session.md
index 0fe0b2414..bd8c1f9a4 100644
--- a/docs/concepts/session.md
+++ b/docs/concepts/session.md
@@ -25,6 +25,7 @@ All session state is **owned by the gateway** (the “master” Clawdbot). UI cl
 - Transcripts: `~/.clawdbot/agents/<agentId>/sessions/<SessionId>.jsonl` (Telegram topic sessions use `.../<SessionId>-topic-<threadId>.jsonl`).
 - The store is a map `sessionKey -> { sessionId, updatedAt, ... }`. Deleting entries is safe; they are recreated on demand.
 - Group entries may include `displayName`, `channel`, `subject`, `room`, and `space` to label sessions in UIs.
+- Session entries include `origin` metadata (label + routing hints) so UIs can explain where a session came from.
 - Clawdbot does **not** read legacy Pi/Tau session folders.
 
 ## Session pruning
@@ -113,3 +114,11 @@ Send these as standalone messages so they register.
 ## Tips
 - Keep the primary key dedicated to 1:1 traffic; let groups keep their own keys.
 - When automating cleanup, delete individual keys instead of the whole store to preserve context elsewhere.
+
+## Session origin metadata
+Each session entry records where it came from (best-effort) in `origin`:
+- `label`: human label (resolved from conversation label + group subject/channel)
+- `provider`: normalized channel id (including extensions)
+- `from`/`to`: raw routing ids from the inbound envelope
+- `accountId`: provider account id (when multi-account)
+- `threadId`: thread/topic id when the channel supports it
diff --git a/extensions/matrix/src/matrix/monitor/index.ts b/extensions/matrix/src/matrix/monitor/index.ts
index 60880d64a..35034d78d 100644
--- a/extensions/matrix/src/matrix/monitor/index.ts
+++ b/extensions/matrix/src/matrix/monitor/index.ts
@@ -18,7 +18,11 @@ import type { ReplyPayload } from "../../../../../src/auto-reply/types.js";
 import { resolveCommandAuthorizedFromAuthorizers } from "../../../../../src/channels/command-gating.js";
 import { formatAllowlistMatchMeta } from "../../../../../src/channels/plugins/allowlist-match.js";
 import { loadConfig } from "../../../../../src/config/config.js";
-import { resolveStorePath, updateLastRoute } from "../../../../../src/config/sessions.js";
+import {
+  recordSessionMetaFromInbound,
+  resolveStorePath,
+  updateLastRoute,
+} from "../../../../../src/config/sessions.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../../../../src/globals.js";
 import { enqueueSystemEvent } from "../../../../../src/infra/system-events.js";
 import { getChildLogger } from "../../../../../src/logging.js";
@@ -494,7 +498,7 @@ export async function monitorMatrixProvider(opts: MonitorMatrixOpts = {}): Promi
       });
 
       const groupSystemPrompt = roomConfigInfo.config?.systemPrompt?.trim() || undefined;
-	      const ctxPayload = finalizeInboundContext({
+      const ctxPayload = finalizeInboundContext({
 	        Body: body,
 	        RawBody: bodyText,
 	        CommandBody: bodyText,
@@ -526,10 +530,21 @@ export async function monitorMatrixProvider(opts: MonitorMatrixOpts = {}): Promi
 	        OriginatingTo: `room:${roomId}`,
 	      });
 
+      const storePath = resolveStorePath(cfg.session?.store, {
+        agentId: route.agentId,
+      });
+      void recordSessionMetaFromInbound({
+        storePath,
+        sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+        ctx: ctxPayload,
+      }).catch((err) => {
+        logger.warn(
+          { error: String(err), storePath, sessionKey: ctxPayload.SessionKey ?? route.sessionKey },
+          "failed updating session meta",
+        );
+      });
+
       if (isDirectMessage) {
-        const storePath = resolveStorePath(cfg.session?.store, {
-          agentId: route.agentId,
-        });
         await updateLastRoute({
           storePath,
           sessionKey: route.mainSessionKey,
diff --git a/extensions/msteams/src/monitor-handler/message-handler.ts b/extensions/msteams/src/monitor-handler/message-handler.ts
index 0e5b6dc13..b4c1e6fc7 100644
--- a/extensions/msteams/src/monitor-handler/message-handler.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.ts
@@ -18,6 +18,7 @@ import { resolveCommandAuthorizedFromAuthorizers } from "../../../../src/channel
 import { formatAllowlistMatchMeta } from "../../../../src/channels/plugins/allowlist-match.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../../../src/globals.js";
 import { enqueueSystemEvent } from "../../../../src/infra/system-events.js";
+import { recordSessionMetaFromInbound, resolveStorePath } from "../../../../src/config/sessions.js";
 import {
   readChannelAllowFromStore,
   upsertChannelPairingRequest,
@@ -459,6 +460,17 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
 	      ...mediaPayload,
 	    });
 
+    const storePath = resolveStorePath(cfg.session?.store, {
+      agentId: route.agentId,
+    });
+    void recordSessionMetaFromInbound({
+      storePath,
+      sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+      ctx: ctxPayload,
+    }).catch((err) => {
+      logVerbose(`msteams: failed updating session meta: ${String(err)}`);
+    });
+
     if (shouldLogVerbose()) {
       logVerbose(`msteams inbound: from=${ctxPayload.From} preview="${preview}"`);
     }
diff --git a/extensions/zalo/src/monitor.ts b/extensions/zalo/src/monitor.ts
index 3f9a064a9..bd7a0e179 100644
--- a/extensions/zalo/src/monitor.ts
+++ b/extensions/zalo/src/monitor.ts
@@ -7,6 +7,7 @@ import {
 } from "../../../src/auto-reply/command-detection.js";
 import { finalizeInboundContext } from "../../../src/auto-reply/reply/inbound-context.js";
 import { resolveCommandAuthorizedFromAuthorizers } from "../../../src/channels/command-gating.js";
+import { recordSessionMetaFromInbound, resolveStorePath } from "../../../src/config/sessions.js";
 import {
   ZaloApiError,
   deleteWebhook,
@@ -552,6 +553,17 @@ async function processMessageWithPipeline(params: {
     OriginatingTo: `zalo:${chatId}`,
   });
 
+  const storePath = resolveStorePath(config.session?.store, {
+    agentId: route.agentId,
+  });
+  void recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    runtime.error?.(`zalo: failed updating session meta: ${String(err)}`);
+  });
+
   await deps.dispatchReplyWithBufferedBlockDispatcher({
     ctx: ctxPayload,
     cfg: config,
diff --git a/extensions/zalouser/src/monitor.ts b/extensions/zalouser/src/monitor.ts
index 1e95e0b36..5ec687c36 100644
--- a/extensions/zalouser/src/monitor.ts
+++ b/extensions/zalouser/src/monitor.ts
@@ -8,6 +8,7 @@ import {
 import { mergeAllowlist, summarizeMapping } from "../../../src/channels/allowlists/resolve-utils.js";
 import { finalizeInboundContext } from "../../../src/auto-reply/reply/inbound-context.js";
 import { resolveCommandAuthorizedFromAuthorizers } from "../../../src/channels/command-gating.js";
+import { recordSessionMetaFromInbound, resolveStorePath } from "../../../src/config/sessions.js";
 import { loadCoreChannelDeps, type CoreChannelDeps } from "./core-bridge.js";
 import { sendMessageZalouser } from "./send.js";
 import type {
@@ -299,6 +300,17 @@ async function processMessage(
     OriginatingTo: `zalouser:${chatId}`,
   });
 
+  const storePath = resolveStorePath(config.session?.store, {
+    agentId: route.agentId,
+  });
+  void recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    runtime.error?.(`zalouser: failed updating session meta: ${String(err)}`);
+  });
+
   await deps.dispatchReplyWithBufferedBlockDispatcher({
     ctx: ctxPayload,
     cfg: config,
diff --git a/src/agents/subagent-announce.format.test.ts b/src/agents/subagent-announce.format.test.ts
index 0b3679c49..c2b11984b 100644
--- a/src/agents/subagent-announce.format.test.ts
+++ b/src/agents/subagent-announce.format.test.ts
@@ -39,6 +39,7 @@ vi.mock("../config/sessions.js", () => ({
   resolveAgentIdFromSessionKey: () => "main",
   resolveStorePath: () => "/tmp/sessions.json",
   resolveMainSessionKey: () => "agent:main:main",
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("./pi-embedded.js", () => embeddedRunMock);
diff --git a/src/auto-reply/reply/session.ts b/src/auto-reply/reply/session.ts
index 3dc75c283..7215c8979 100644
--- a/src/auto-reply/reply/session.ts
+++ b/src/auto-reply/reply/session.ts
@@ -4,13 +4,11 @@ import path from "node:path";
 
 import { CURRENT_SESSION_VERSION, SessionManager } from "@mariozechner/pi-coding-agent";
 import { resolveSessionAgentId } from "../../agents/agent-scope.js";
-import { getChannelDock } from "../../channels/dock.js";
-import { normalizeChannelId } from "../../channels/plugins/index.js";
 import type { ClawdbotConfig } from "../../config/config.js";
 import {
-  buildGroupDisplayName,
   DEFAULT_IDLE_MINUTES,
   DEFAULT_RESET_TRIGGERS,
+  deriveSessionMetaPatch,
   type GroupKeyResolution,
   loadSessionStore,
   resolveGroupSessionKey,
@@ -237,39 +235,16 @@ export async function initSessionState(params: {
     lastTo,
     lastAccountId,
   };
-  if (groupResolution?.channel) {
-    const channel = groupResolution.channel;
-    const subject = ctx.GroupSubject?.trim();
-    const space = ctx.GroupSpace?.trim();
-    const explicitChannel = ctx.GroupChannel?.trim();
-    const normalizedChannel = normalizeChannelId(channel);
-    const isChannelProvider = Boolean(
-      normalizedChannel &&
-      getChannelDock(normalizedChannel)?.capabilities.chatTypes.includes("channel"),
-    );
-    const nextGroupChannel =
-      explicitChannel ??
-      ((groupResolution.chatType === "channel" || isChannelProvider) &&
-      subject &&
-      subject.startsWith("#")
-        ? subject
-        : undefined);
-    const nextSubject = nextGroupChannel ? undefined : subject;
-    sessionEntry.chatType = groupResolution.chatType ?? "group";
-    sessionEntry.channel = channel;
-    sessionEntry.groupId = groupResolution.id;
-    if (nextSubject) sessionEntry.subject = nextSubject;
-    if (nextGroupChannel) sessionEntry.groupChannel = nextGroupChannel;
-    if (space) sessionEntry.space = space;
-    sessionEntry.displayName = buildGroupDisplayName({
-      provider: sessionEntry.channel,
-      subject: sessionEntry.subject,
-      groupChannel: sessionEntry.groupChannel,
-      space: sessionEntry.space,
-      id: groupResolution.id,
-      key: sessionKey,
-    });
-  } else if (!sessionEntry.chatType) {
+  const metaPatch = deriveSessionMetaPatch({
+    ctx: sessionCtxForState,
+    sessionKey,
+    existing: sessionEntry,
+    groupResolution,
+  });
+  if (metaPatch) {
+    sessionEntry = { ...sessionEntry, ...metaPatch };
+  }
+  if (!sessionEntry.chatType) {
     sessionEntry.chatType = "direct";
   }
   const threadLabel = ctx.ThreadLabel?.trim();
diff --git a/src/commands/health.snapshot.test.ts b/src/commands/health.snapshot.test.ts
index 436e3a275..d747b3eeb 100644
--- a/src/commands/health.snapshot.test.ts
+++ b/src/commands/health.snapshot.test.ts
@@ -21,6 +21,7 @@ vi.mock("../config/config.js", async (importOriginal) => {
 vi.mock("../config/sessions.js", () => ({
   resolveStorePath: () => "/tmp/sessions.json",
   loadSessionStore: () => testStore,
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("../web/auth-store.js", () => ({
diff --git a/src/commands/status.test.ts b/src/commands/status.test.ts
index d3784e83b..97622ed1f 100644
--- a/src/commands/status.test.ts
+++ b/src/commands/status.test.ts
@@ -100,6 +100,7 @@ vi.mock("../config/sessions.js", () => ({
   loadSessionStore: mocks.loadSessionStore,
   resolveMainSessionKey: mocks.resolveMainSessionKey,
   resolveStorePath: mocks.resolveStorePath,
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("../channels/plugins/index.js", () => ({
   listChannelPlugins: () =>
diff --git a/src/config/sessions.ts b/src/config/sessions.ts
index 4113fc206..3fa3014d5 100644
--- a/src/config/sessions.ts
+++ b/src/config/sessions.ts
@@ -1,4 +1,5 @@
 export * from "./sessions/group.js";
+export * from "./sessions/metadata.js";
 export * from "./sessions/main-session.js";
 export * from "./sessions/paths.js";
 export * from "./sessions/session-key.js";
diff --git a/src/config/sessions/store.ts b/src/config/sessions/store.ts
index 2d2793ffb..c65f50f6e 100644
--- a/src/config/sessions/store.ts
+++ b/src/config/sessions/store.ts
@@ -11,6 +11,8 @@ import {
   normalizeSessionDeliveryFields,
   type DeliveryContext,
 } from "../../utils/delivery-context.js";
+import type { MsgContext } from "../../auto-reply/templating.js";
+import { deriveSessionMetaPatch } from "./metadata.js";
 import { mergeSessionEntry, type SessionEntry } from "./types.js";
 
 // ============================================================================
@@ -334,6 +336,31 @@ export async function updateSessionStoreEntry(params: {
   });
 }
 
+export async function recordSessionMetaFromInbound(params: {
+  storePath: string;
+  sessionKey: string;
+  ctx: MsgContext;
+  groupResolution?: import("./types.js").GroupKeyResolution | null;
+  createIfMissing?: boolean;
+}): Promise<SessionEntry | null> {
+  const { storePath, sessionKey, ctx } = params;
+  const createIfMissing = params.createIfMissing ?? true;
+  return await updateSessionStore(storePath, (store) => {
+    const existing = store[sessionKey];
+    const patch = deriveSessionMetaPatch({
+      ctx,
+      sessionKey,
+      existing,
+      groupResolution: params.groupResolution,
+    });
+    if (!patch) return existing ?? null;
+    if (!existing && !createIfMissing) return null;
+    const next = mergeSessionEntry(existing, patch);
+    store[sessionKey] = next;
+    return next;
+  });
+}
+
 export async function updateLastRoute(params: {
   storePath: string;
   sessionKey: string;
diff --git a/src/config/sessions/types.ts b/src/config/sessions/types.ts
index 075d5b905..486184292 100644
--- a/src/config/sessions/types.ts
+++ b/src/config/sessions/types.ts
@@ -11,6 +11,17 @@ export type SessionChannelId = ChannelId | "webchat";
 
 export type SessionChatType = NormalizedChatType;
 
+export type SessionOrigin = {
+  label?: string;
+  provider?: string;
+  surface?: string;
+  chatType?: SessionChatType;
+  from?: string;
+  to?: string;
+  accountId?: string;
+  threadId?: string | number;
+};
+
 export type SessionEntry = {
   /**
    * Last delivered heartbeat payload (used to suppress duplicate heartbeat notifications).
@@ -69,6 +80,7 @@ export type SessionEntry = {
   subject?: string;
   groupChannel?: string;
   space?: string;
+  origin?: SessionOrigin;
   deliveryContext?: DeliveryContext;
   lastChannel?: SessionChannelId;
   lastTo?: string;
diff --git a/src/discord/monitor/message-handler.process.ts b/src/discord/monitor/message-handler.process.ts
index 5f74522a6..1fd298859 100644
--- a/src/discord/monitor/message-handler.process.ts
+++ b/src/discord/monitor/message-handler.process.ts
@@ -17,7 +17,11 @@ import {
 import { finalizeInboundContext } from "../../auto-reply/reply/inbound-context.js";
 import { createReplyDispatcherWithTyping } from "../../auto-reply/reply/reply-dispatcher.js";
 import type { ReplyPayload } from "../../auto-reply/types.js";
-import { resolveStorePath, updateLastRoute } from "../../config/sessions.js";
+import {
+  recordSessionMetaFromInbound,
+  resolveStorePath,
+  updateLastRoute,
+} from "../../config/sessions.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../globals.js";
 import { buildAgentSessionKey } from "../../routing/resolve-route.js";
 import { resolveThreadSessionKeys } from "../../routing/session-key.js";
@@ -264,11 +268,18 @@ export async function processDiscordMessage(ctx: DiscordMessagePreflightContext)
     OriginatingTo: autoThreadContext?.OriginatingTo ?? replyTarget,
   });
 
+  const storePath = resolveStorePath(cfg.session?.store, {
+    agentId: route.agentId,
+  });
+  void recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    logVerbose(`discord: failed updating session meta: ${String(err)}`);
+  });
+
   if (isDirectMessage) {
-    const sessionCfg = cfg.session;
-    const storePath = resolveStorePath(sessionCfg?.store, {
-      agentId: route.agentId,
-    });
     await updateLastRoute({
       storePath,
       sessionKey: route.mainSessionKey,
diff --git a/src/gateway/server-bridge-methods-sessions.ts b/src/gateway/server-bridge-methods-sessions.ts
index f106925ef..4522d5957 100644
--- a/src/gateway/server-bridge-methods-sessions.ts
+++ b/src/gateway/server-bridge-methods-sessions.ts
@@ -9,6 +9,7 @@ import {
 import { loadConfig } from "../config/config.js";
 import {
   resolveMainSessionKeyFromConfig,
+  snapshotSessionOrigin,
   type SessionEntry,
   updateSessionStore,
 } from "../config/sessions.js";
@@ -205,6 +206,7 @@ export const handleSessionsBridgeMethods: BridgeMethodHandler = async (
           contextTokens: entry?.contextTokens,
           sendPolicy: entry?.sendPolicy,
           label: entry?.label,
+          origin: snapshotSessionOrigin(entry),
           displayName: entry?.displayName,
           chatType: entry?.chatType,
           channel: entry?.channel,
diff --git a/src/gateway/server-methods/sessions.ts b/src/gateway/server-methods/sessions.ts
index 94a3ca3f3..9d3752627 100644
--- a/src/gateway/server-methods/sessions.ts
+++ b/src/gateway/server-methods/sessions.ts
@@ -6,6 +6,7 @@ import { stopSubagentsForRequester } from "../../auto-reply/reply/abort.js";
 import { clearSessionQueues } from "../../auto-reply/reply/queue.js";
 import { loadConfig } from "../../config/config.js";
 import {
+  snapshotSessionOrigin,
   resolveMainSessionKey,
   type SessionEntry,
   updateSessionStore,
@@ -173,6 +174,7 @@ export const sessionsHandlers: GatewayRequestHandlers = {
         contextTokens: entry?.contextTokens,
         sendPolicy: entry?.sendPolicy,
         label: entry?.label,
+        origin: snapshotSessionOrigin(entry),
         lastChannel: entry?.lastChannel,
         lastTo: entry?.lastTo,
         skillsSnapshot: entry?.skillsSnapshot,
diff --git a/src/gateway/session-utils.ts b/src/gateway/session-utils.ts
index ec0b426c0..b17018ae3 100644
--- a/src/gateway/session-utils.ts
+++ b/src/gateway/session-utils.ts
@@ -381,6 +381,8 @@ export function listSessionsFromStore(params: {
       const groupChannel = entry?.groupChannel;
       const space = entry?.space;
       const id = parsed?.id;
+      const origin = entry?.origin;
+      const originLabel = origin?.label;
       const displayName =
         entry?.displayName ??
         (channel
@@ -393,7 +395,8 @@ export function listSessionsFromStore(params: {
               key,
             })
           : undefined) ??
-        entry?.label;
+        entry?.label ??
+        originLabel;
       const deliveryFields = normalizeSessionDeliveryFields(entry);
       return {
         key,
@@ -405,6 +408,7 @@ export function listSessionsFromStore(params: {
         groupChannel,
         space,
         chatType: entry?.chatType,
+        origin,
         updatedAt,
         sessionId: entry?.sessionId,
         systemSent: entry?.systemSent,
diff --git a/src/gateway/session-utils.types.ts b/src/gateway/session-utils.types.ts
index 051e293ac..726787a36 100644
--- a/src/gateway/session-utils.types.ts
+++ b/src/gateway/session-utils.types.ts
@@ -18,6 +18,7 @@ export type GatewaySessionRow = {
   groupChannel?: string;
   space?: string;
   chatType?: NormalizedChatType;
+  origin?: SessionEntry["origin"];
   updatedAt: number | null;
   sessionId?: string;
   systemSent?: boolean;
diff --git a/src/imessage/monitor.skips-group-messages-without-mention-by-default.test.ts b/src/imessage/monitor.skips-group-messages-without-mention-by-default.test.ts
index 13486e188..e8a72f836 100644
--- a/src/imessage/monitor.skips-group-messages-without-mention-by-default.test.ts
+++ b/src/imessage/monitor.skips-group-messages-without-mention-by-default.test.ts
@@ -38,6 +38,7 @@ vi.mock("../pairing/pairing-store.js", () => ({
 vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("./client.js", () => ({
diff --git a/src/imessage/monitor.updates-last-route-chat-id-direct-messages.test.ts b/src/imessage/monitor.updates-last-route-chat-id-direct-messages.test.ts
index 7fe151561..194437544 100644
--- a/src/imessage/monitor.updates-last-route-chat-id-direct-messages.test.ts
+++ b/src/imessage/monitor.updates-last-route-chat-id-direct-messages.test.ts
@@ -38,6 +38,7 @@ vi.mock("../pairing/pairing-store.js", () => ({
 vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("./client.js", () => ({
diff --git a/src/imessage/monitor/monitor-provider.ts b/src/imessage/monitor/monitor-provider.ts
index 4ee271eac..ff2c05ec1 100644
--- a/src/imessage/monitor/monitor-provider.ts
+++ b/src/imessage/monitor/monitor-provider.ts
@@ -32,7 +32,11 @@ import {
   resolveChannelGroupPolicy,
   resolveChannelGroupRequireMention,
 } from "../../config/group-policy.js";
-import { resolveStorePath, updateLastRoute } from "../../config/sessions.js";
+import {
+  recordSessionMetaFromInbound,
+  resolveStorePath,
+  updateLastRoute,
+} from "../../config/sessions.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../globals.js";
 import { waitForTransportReady } from "../../infra/transport-ready.js";
 import { mediaKindFromMime } from "../../media/constants.js";
@@ -449,11 +453,18 @@ export async function monitorIMessageProvider(opts: MonitorIMessageOpts = {}): P
       OriginatingTo: imessageTo,
     });
 
+    const storePath = resolveStorePath(cfg.session?.store, {
+      agentId: route.agentId,
+    });
+    void recordSessionMetaFromInbound({
+      storePath,
+      sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+      ctx: ctxPayload,
+    }).catch((err) => {
+      logVerbose(`imessage: failed updating session meta: ${String(err)}`);
+    });
+
     if (!isGroup) {
-      const sessionCfg = cfg.session;
-      const storePath = resolveStorePath(sessionCfg?.store, {
-        agentId: route.agentId,
-      });
       const to = (isGroup ? chatTarget : undefined) || sender;
       if (to) {
         await updateLastRoute({
diff --git a/src/signal/monitor.tool-result.pairs-uuid-only-senders-uuid-allowlist-entry.test.ts b/src/signal/monitor.tool-result.pairs-uuid-only-senders-uuid-allowlist-entry.test.ts
index f0e8eedab..65fc3eabc 100644
--- a/src/signal/monitor.tool-result.pairs-uuid-only-senders-uuid-allowlist-entry.test.ts
+++ b/src/signal/monitor.tool-result.pairs-uuid-only-senders-uuid-allowlist-entry.test.ts
@@ -35,6 +35,7 @@ vi.mock("../pairing/pairing-store.js", () => ({
 vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 const streamMock = vi.fn();
diff --git a/src/signal/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts b/src/signal/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
index d16892646..859cc4ccd 100644
--- a/src/signal/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
+++ b/src/signal/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
@@ -39,6 +39,7 @@ vi.mock("../pairing/pairing-store.js", () => ({
 vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 const streamMock = vi.fn();
diff --git a/src/signal/monitor/event-handler.ts b/src/signal/monitor/event-handler.ts
index d17841504..752e3d3a6 100644
--- a/src/signal/monitor/event-handler.ts
+++ b/src/signal/monitor/event-handler.ts
@@ -20,7 +20,11 @@ import {
 } from "../../auto-reply/reply/history.js";
 import { finalizeInboundContext } from "../../auto-reply/reply/inbound-context.js";
 import { createReplyDispatcher } from "../../auto-reply/reply/reply-dispatcher.js";
-import { resolveStorePath, updateLastRoute } from "../../config/sessions.js";
+import {
+  recordSessionMetaFromInbound,
+  resolveStorePath,
+  updateLastRoute,
+} from "../../config/sessions.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../globals.js";
 import { enqueueSystemEvent } from "../../infra/system-events.js";
 import { mediaKindFromMime } from "../../media/constants.js";
@@ -140,11 +144,18 @@ export function createSignalEventHandler(deps: SignalEventHandlerDeps) {
       OriginatingTo: signalTo,
     });
 
+    const storePath = resolveStorePath(deps.cfg.session?.store, {
+      agentId: route.agentId,
+    });
+    void recordSessionMetaFromInbound({
+      storePath,
+      sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+      ctx: ctxPayload,
+    }).catch((err) => {
+      logVerbose(`signal: failed updating session meta: ${String(err)}`);
+    });
+
     if (!entry.isGroup) {
-      const sessionCfg = deps.cfg.session;
-      const storePath = resolveStorePath(sessionCfg?.store, {
-        agentId: route.agentId,
-      });
       await updateLastRoute({
         storePath,
         sessionKey: route.mainSessionKey,
diff --git a/src/slack/monitor.tool-result.forces-thread-replies-replytoid-is-set.test.ts b/src/slack/monitor.tool-result.forces-thread-replies-replytoid-is-set.test.ts
index 458ab188d..c2c224a76 100644
--- a/src/slack/monitor.tool-result.forces-thread-replies-replytoid-is-set.test.ts
+++ b/src/slack/monitor.tool-result.forces-thread-replies-replytoid-is-set.test.ts
@@ -54,6 +54,7 @@ vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
   resolveSessionKey: vi.fn(),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("@slack/bolt", () => {
diff --git a/src/slack/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts b/src/slack/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
index 3978c2408..90bd3df96 100644
--- a/src/slack/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
+++ b/src/slack/monitor.tool-result.sends-tool-summaries-responseprefix.test.ts
@@ -56,6 +56,7 @@ vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
   resolveSessionKey: vi.fn(),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("@slack/bolt", () => {
diff --git a/src/slack/monitor.tool-result.threads-top-level-replies-replytomode-is-all.test.ts b/src/slack/monitor.tool-result.threads-top-level-replies-replytomode-is-all.test.ts
index f20459ce4..80c5c273c 100644
--- a/src/slack/monitor.tool-result.threads-top-level-replies-replytomode-is-all.test.ts
+++ b/src/slack/monitor.tool-result.threads-top-level-replies-replytomode-is-all.test.ts
@@ -54,6 +54,7 @@ vi.mock("../config/sessions.js", () => ({
   resolveStorePath: vi.fn(() => "/tmp/clawdbot-sessions.json"),
   updateLastRoute: (...args: unknown[]) => updateLastRouteMock(...args),
   resolveSessionKey: vi.fn(),
+  recordSessionMetaFromInbound: vi.fn().mockResolvedValue(undefined),
 }));
 
 vi.mock("@slack/bolt", () => {
diff --git a/src/slack/monitor/message-handler/prepare.ts b/src/slack/monitor/message-handler/prepare.ts
index 5f424f84c..a1fe35675 100644
--- a/src/slack/monitor/message-handler/prepare.ts
+++ b/src/slack/monitor/message-handler/prepare.ts
@@ -21,6 +21,7 @@ import { resolveThreadSessionKeys } from "../../../routing/session-key.js";
 import { resolveMentionGatingWithBypass } from "../../../channels/mention-gating.js";
 import { resolveConversationLabel } from "../../../channels/conversation-label.js";
 import { resolveControlCommandGate } from "../../../channels/command-gating.js";
+import { recordSessionMetaFromInbound, resolveStorePath } from "../../../config/sessions.js";
 
 import type { ResolvedSlackAccount } from "../../accounts.js";
 import { reactSlackMessage } from "../../actions.js";
@@ -471,6 +472,24 @@ export async function prepareSlackMessage(params: {
     OriginatingTo: slackTo,
   }) satisfies FinalizedMsgContext;
 
+  const storePath = resolveStorePath(ctx.cfg.session?.store, {
+    agentId: route.agentId,
+  });
+  void recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    ctx.logger.warn(
+      {
+        error: String(err),
+        storePath,
+        sessionKey,
+      },
+      "failed updating session meta",
+    );
+  });
+
   const replyTarget = ctxPayload.To ?? undefined;
   if (!replyTarget) return null;
 
diff --git a/src/telegram/bot-message-context.ts b/src/telegram/bot-message-context.ts
index 286354c4f..364a32ec3 100644
--- a/src/telegram/bot-message-context.ts
+++ b/src/telegram/bot-message-context.ts
@@ -12,7 +12,11 @@ import {
 import { finalizeInboundContext } from "../auto-reply/reply/inbound-context.js";
 import { buildMentionRegexes, matchesMentionPatterns } from "../auto-reply/reply/mentions.js";
 import { formatLocationText, toLocationContext } from "../channels/location.js";
-import { resolveStorePath, updateLastRoute } from "../config/sessions.js";
+import {
+  recordSessionMetaFromInbound,
+  resolveStorePath,
+  updateLastRoute,
+} from "../config/sessions.js";
 import type { ClawdbotConfig } from "../config/config.js";
 import type { DmPolicy, TelegramGroupConfig, TelegramTopicConfig } from "../config/types.js";
 import { logVerbose, shouldLogVerbose } from "../globals.js";
@@ -500,6 +504,17 @@ export const buildTelegramMessageContext = async ({
     OriginatingTo: `telegram:${chatId}`,
   });
 
+  const storePath = resolveStorePath(cfg.session?.store, {
+    agentId: route.agentId,
+  });
+  void recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: ctxPayload.SessionKey ?? route.sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    logVerbose(`telegram: failed updating session meta: ${String(err)}`);
+  });
+
   if (replyTarget && shouldLogVerbose()) {
     const preview = replyTarget.body.replace(/\s+/g, " ").slice(0, 120);
     logVerbose(
@@ -514,10 +529,6 @@ export const buildTelegramMessageContext = async ({
   }
 
   if (!isGroup) {
-    const sessionCfg = cfg.session;
-    const storePath = resolveStorePath(sessionCfg?.store, {
-      agentId: route.agentId,
-    });
     await updateLastRoute({
       storePath,
       sessionKey: route.mainSessionKey,
diff --git a/src/web/auto-reply/monitor/process-message.ts b/src/web/auto-reply/monitor/process-message.ts
index 170baeba5..3ad1b5bb0 100644
--- a/src/web/auto-reply/monitor/process-message.ts
+++ b/src/web/auto-reply/monitor/process-message.ts
@@ -20,6 +20,7 @@ import { shouldComputeCommandAuthorized } from "../../../auto-reply/command-dete
 import { finalizeInboundContext } from "../../../auto-reply/reply/inbound-context.js";
 import { toLocationContext } from "../../../channels/location.js";
 import type { loadConfig } from "../../../config/config.js";
+import { recordSessionMetaFromInbound, resolveStorePath } from "../../../config/sessions.js";
 import { logVerbose, shouldLogVerbose } from "../../../globals.js";
 import type { getChildLogger } from "../../../logging.js";
 import { readChannelAllowFromStore } from "../../../pairing/pairing-store.js";
@@ -33,7 +34,7 @@ import type { WebInboundMsg } from "../types.js";
 import { elide } from "../util.js";
 import { maybeSendAckReaction } from "./ack-reaction.js";
 import { formatGroupMembers } from "./group-members.js";
-import { updateLastRouteInBackground } from "./last-route.js";
+import { trackBackgroundTask, updateLastRouteInBackground } from "./last-route.js";
 import { buildInboundLine } from "./message-line.js";
 
 export type GroupHistoryEntry = {
@@ -249,8 +250,7 @@ export async function processMessage(params: {
     identityName: resolveIdentityName(params.cfg, params.route.agentId),
   };
 
-  const { queuedFinal } = await dispatchReplyWithBufferedBlockDispatcher({
-    ctx: finalizeInboundContext({
+  const ctxPayload = finalizeInboundContext({
       Body: combinedBody,
       RawBody: params.msg.body,
       CommandBody: params.msg.body,
@@ -283,7 +283,29 @@ export async function processMessage(params: {
       Surface: "whatsapp",
       OriginatingChannel: "whatsapp",
       OriginatingTo: params.msg.from,
-    }),
+    });
+
+  const storePath = resolveStorePath(params.cfg.session?.store, {
+    agentId: params.route.agentId,
+  });
+  const metaTask = recordSessionMetaFromInbound({
+    storePath,
+    sessionKey: params.route.sessionKey,
+    ctx: ctxPayload,
+  }).catch((err) => {
+    params.replyLogger.warn(
+      {
+        error: formatError(err),
+        storePath,
+        sessionKey: params.route.sessionKey,
+      },
+      "failed updating session meta",
+    );
+  });
+  trackBackgroundTask(params.backgroundTasks, metaTask);
+
+  const { queuedFinal } = await dispatchReplyWithBufferedBlockDispatcher({
+    ctx: ctxPayload,
     cfg: params.cfg,
     replyResolver: params.replyResolver,
     dispatcherOptions: {