From 5370e73ee984cd698fc59b06f78bdeddc06f2996 Mon Sep 17 00:00:00 2001
From: Vincent Koc <vincentkoc@ieee.org>
Date: Wed, 17 Jun 2026 17:30:08 +0800
Subject: [PATCH] refactor(channels): hide internal channel types

---
 src/channels/chat-meta.ts                    | 2 --
 src/channels/message/send.ts                 | 8 +++-----
 src/channels/plugins/package-state-probes.ts | 2 +-
 src/channels/status/read-model.ts            | 2 +-
 src/channels/thread-bindings-policy.ts       | 2 +-
 5 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/src/channels/chat-meta.ts b/src/channels/chat-meta.ts
index 2cd7221f9b8..ece54c22b74 100644
--- a/src/channels/chat-meta.ts
+++ b/src/channels/chat-meta.ts
@@ -13,8 +13,6 @@ function getChatChannelMetaById(): Record<ChatChannelId, ChatChannelMeta> {
   return chatChannelMetaCache;
 }
 
-export type { ChatChannelMeta };
-
 /**
  * Lists built-in chat channel metadata in configured display order.
  */
diff --git a/src/channels/message/send.ts b/src/channels/message/send.ts
index e783f3f9e91..600d5d9419c 100644
--- a/src/channels/message/send.ts
+++ b/src/channels/message/send.ts
@@ -43,13 +43,13 @@ export type DurableMessageBatchSendParams = Omit<
   previousReceipt?: MessageReceipt;
 };
 
-export type DurableMessageSuppressionReason =
+type DurableMessageSuppressionReason =
   | OutboundPayloadDeliverySuppressionReason
   | "no_visible_result";
 
-export type DurableMessageFailureStage = "platform_send" | "queue" | "unknown";
+type DurableMessageFailureStage = "platform_send" | "queue" | "unknown";
 
-export type DurableMessagePayloadDeliveryOutcome =
+type DurableMessagePayloadDeliveryOutcome =
   | {
       index: number;
       status: "sent";
@@ -104,8 +104,6 @@ export type DurableMessageBatchSendResult =
       payloadOutcomes?: DurableMessagePayloadDeliveryOutcome[];
     };
 
-export type DurableMessageDeliveryOutcome = DurableMessageBatchSendResult;
-
 const neverAbortedSignal = new AbortController().signal;
 
 function toDurableMessageIntent(
diff --git a/src/channels/plugins/package-state-probes.ts b/src/channels/plugins/package-state-probes.ts
index 62875baa577..1fa422408fc 100644
--- a/src/channels/plugins/package-state-probes.ts
+++ b/src/channels/plugins/package-state-probes.ts
@@ -39,7 +39,7 @@ type ChannelPackageStateMetadata = {
 /**
  * Metadata keys that can declare a lightweight package-state checker.
  */
-export type ChannelPackageStateMetadataKey = "configuredState" | "persistedAuthState";
+type ChannelPackageStateMetadataKey = "configuredState" | "persistedAuthState";
 
 const log = createSubsystemLogger("channels");
 const sourcePackageStateLoaderCache: PluginModuleLoaderCache = new Map();
diff --git a/src/channels/status/read-model.ts b/src/channels/status/read-model.ts
index d6709deac71..d674a1f45f2 100644
--- a/src/channels/status/read-model.ts
+++ b/src/channels/status/read-model.ts
@@ -10,7 +10,7 @@ export type RuntimeChannelStatusPayload = {
   channelAccounts?: unknown;
 };
 
-export type RuntimeChannelAccount = Record<string, unknown>;
+type RuntimeChannelAccount = Record<string, unknown>;
 
 const CREDENTIAL_STATUS_KEYS = [
   "tokenStatus",
diff --git a/src/channels/thread-bindings-policy.ts b/src/channels/thread-bindings-policy.ts
index a7a94c8481d..a98d3a8de17 100644
--- a/src/channels/thread-bindings-policy.ts
+++ b/src/channels/thread-bindings-policy.ts
@@ -46,7 +46,7 @@ export type ThreadBindingSpawnPolicy = {
 };
 
 /** Starting transcript mode for a spawned thread-bound session. */
-export type ThreadBindingSpawnContext = "isolated" | "fork";
+type ThreadBindingSpawnContext = "isolated" | "fork";
 
 function normalizeChannelId(value: string | undefined | null): string {
   return normalizeLowercaseStringOrEmpty(value);