diff --git a/docs/plugins/sdk-subpaths.md b/docs/plugins/sdk-subpaths.md
index 89b13f6f6c0..818776fc01e 100644
--- a/docs/plugins/sdk-subpaths.md
+++ b/docs/plugins/sdk-subpaths.md
@@ -66,6 +66,7 @@ For the plugin authoring guide, see [Plugin SDK overview](/plugins/sdk-overview)
     | `plugin-sdk/direct-dm` | Shared direct-DM auth/guard helpers |
     | `plugin-sdk/interactive-runtime` | Semantic message presentation, delivery, and legacy interactive reply helpers. See [Message Presentation](/plugins/message-presentation) |
     | `plugin-sdk/channel-inbound` | Compatibility barrel for inbound debounce, mention matching, mention-policy helpers, and envelope helpers |
+    | `plugin-sdk/channel-inbound-debounce` | Narrow inbound debounce helpers |
     | `plugin-sdk/channel-mention-gating` | Narrow mention-policy helpers without the broader inbound runtime surface |
     | `plugin-sdk/channel-location` | Channel location context and formatting helpers |
     | `plugin-sdk/channel-logging` | Channel logging helpers for inbound drops and typing/ack failures |
diff --git a/extensions/feishu/src/media.ts b/extensions/feishu/src/media.ts
index e6caf511b77..6497db99955 100644
--- a/extensions/feishu/src/media.ts
+++ b/extensions/feishu/src/media.ts
@@ -2,7 +2,7 @@ import fs from "node:fs";
 import path from "node:path";
 import { Readable } from "node:stream";
 import type * as Lark from "@larksuiteoapi/node-sdk";
-import { mediaKindFromMime } from "openclaw/plugin-sdk/media-runtime";
+import { mediaKindFromMime } from "openclaw/plugin-sdk/media-mime";
 import { withTempDownloadPath } from "openclaw/plugin-sdk/temp-path";
 import { normalizeLowercaseStringOrEmpty } from "openclaw/plugin-sdk/text-runtime";
 import type { ClawdbotConfig } from "../runtime-api.js";
diff --git a/extensions/feishu/src/monitor.comment.test.ts b/extensions/feishu/src/monitor.comment.test.ts
index 86711db4143..1c825322409 100644
--- a/extensions/feishu/src/monitor.comment.test.ts
+++ b/extensions/feishu/src/monitor.comment.test.ts
@@ -1,8 +1,8 @@
 import {
   createInboundDebouncer,
   resolveInboundDebounceMs,
-} from "openclaw/plugin-sdk/channel-inbound";
-import { hasControlCommand } from "openclaw/plugin-sdk/command-auth";
+} from "openclaw/plugin-sdk/channel-inbound-debounce";
+import { hasControlCommand } from "openclaw/plugin-sdk/command-detection";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { createNonExitingRuntimeEnv } from "../../../test/helpers/plugins/runtime-env.js";
 import type { ClawdbotConfig, PluginRuntime, RuntimeEnv } from "../runtime-api.js";
diff --git a/extensions/feishu/src/monitor.reaction.test.ts b/extensions/feishu/src/monitor.reaction.test.ts
index 55e696eb121..b07d8543d9c 100644
--- a/extensions/feishu/src/monitor.reaction.test.ts
+++ b/extensions/feishu/src/monitor.reaction.test.ts
@@ -1,8 +1,8 @@
 import {
   createInboundDebouncer,
   resolveInboundDebounceMs,
-} from "openclaw/plugin-sdk/channel-inbound";
-import { hasControlCommand } from "openclaw/plugin-sdk/command-auth";
+} from "openclaw/plugin-sdk/channel-inbound-debounce";
+import { hasControlCommand } from "openclaw/plugin-sdk/command-detection";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { createNonExitingTypedRuntimeEnv } from "../../../test/helpers/plugins/runtime-env.js";
 import type { ClawdbotConfig, PluginRuntime, RuntimeEnv } from "../runtime-api.js";
diff --git a/extensions/telegram/src/bot-handlers.runtime.ts b/extensions/telegram/src/bot-handlers.runtime.ts
index 566d3b8c767..79b0a9c8b94 100644
--- a/extensions/telegram/src/bot-handlers.runtime.ts
+++ b/extensions/telegram/src/bot-handlers.runtime.ts
@@ -4,7 +4,7 @@ import { shouldDebounceTextInbound } from "openclaw/plugin-sdk/channel-inbound";
 import {
   createInboundDebouncer,
   resolveInboundDebounceMs,
-} from "openclaw/plugin-sdk/channel-inbound";
+} from "openclaw/plugin-sdk/channel-inbound-debounce";
 import { resolveStoredModelOverride } from "openclaw/plugin-sdk/command-auth";
 import {
   resolveCommandAuthorization,
diff --git a/extensions/whatsapp/src/auto-reply/monitor.ts b/extensions/whatsapp/src/auto-reply/monitor.ts
index 97e4c25fa58..44135be09c4 100644
--- a/extensions/whatsapp/src/auto-reply/monitor.ts
+++ b/extensions/whatsapp/src/auto-reply/monitor.ts
@@ -1,5 +1,5 @@
 import { resolveAccountEntry } from "openclaw/plugin-sdk/account-core";
-import { resolveInboundDebounceMs } from "openclaw/plugin-sdk/channel-inbound";
+import { resolveInboundDebounceMs } from "openclaw/plugin-sdk/channel-inbound-debounce";
 import { formatCliCommand } from "openclaw/plugin-sdk/cli-runtime";
 import { hasControlCommand } from "openclaw/plugin-sdk/command-detection";
 import { drainPendingDeliveries } from "openclaw/plugin-sdk/infra-runtime";
diff --git a/extensions/whatsapp/src/inbound/monitor.ts b/extensions/whatsapp/src/inbound/monitor.ts
index 6f9621f18a8..ef73d214d70 100644
--- a/extensions/whatsapp/src/inbound/monitor.ts
+++ b/extensions/whatsapp/src/inbound/monitor.ts
@@ -5,7 +5,8 @@ import type {
   WAMessage,
   WASocket,
 } from "@whiskeysockets/baileys";
-import { createInboundDebouncer, formatLocationText } from "openclaw/plugin-sdk/channel-inbound";
+import { formatLocationText } from "openclaw/plugin-sdk/channel-inbound";
+import { createInboundDebouncer } from "openclaw/plugin-sdk/channel-inbound-debounce";
 import { recordChannelActivity } from "openclaw/plugin-sdk/infra-runtime";
 import { defaultRuntime } from "openclaw/plugin-sdk/runtime-env";
 import { createSubsystemLogger } from "openclaw/plugin-sdk/runtime-env";
diff --git a/package.json b/package.json
index 4a447400496..06596d5f2d6 100644
--- a/package.json
+++ b/package.json
@@ -637,6 +637,10 @@
       "types": "./dist/plugin-sdk/channel-inbound.d.ts",
       "default": "./dist/plugin-sdk/channel-inbound.js"
     },
+    "./plugin-sdk/channel-inbound-debounce": {
+      "types": "./dist/plugin-sdk/channel-inbound-debounce.d.ts",
+      "default": "./dist/plugin-sdk/channel-inbound-debounce.js"
+    },
     "./plugin-sdk/channel-inbound-roots": {
       "types": "./dist/plugin-sdk/channel-inbound-roots.d.ts",
       "default": "./dist/plugin-sdk/channel-inbound-roots.js"
diff --git a/scripts/lib/plugin-sdk-entrypoints.json b/scripts/lib/plugin-sdk-entrypoints.json
index 517698b374f..9d48b1d07df 100644
--- a/scripts/lib/plugin-sdk-entrypoints.json
+++ b/scripts/lib/plugin-sdk-entrypoints.json
@@ -145,6 +145,7 @@
   "channel-contract",
   "channel-feedback",
   "channel-inbound",
+  "channel-inbound-debounce",
   "channel-inbound-roots",
   "channel-logging",
   "channel-location",
diff --git a/src/plugin-sdk/channel-inbound-debounce.ts b/src/plugin-sdk/channel-inbound-debounce.ts
new file mode 100644
index 00000000000..1295bdd5268
--- /dev/null
+++ b/src/plugin-sdk/channel-inbound-debounce.ts
@@ -0,0 +1,7 @@
+// Narrow inbound debounce helpers for channel plugins.
+
+export {
+  createInboundDebouncer,
+  resolveInboundDebounceMs,
+  type InboundDebounceCreateParams,
+} from "../auto-reply/inbound-debounce.js";
diff --git a/src/plugin-sdk/media-mime.ts b/src/plugin-sdk/media-mime.ts
index 9131dbf3143..9944711e944 100644
--- a/src/plugin-sdk/media-mime.ts
+++ b/src/plugin-sdk/media-mime.ts
@@ -6,3 +6,4 @@ export {
   getFileExtension,
   normalizeMimeType,
 } from "../media/mime.js";
+export { mediaKindFromMime, type MediaKind } from "../media/constants.js";