diff --git a/.openclaw-sync/source.json b/.openclaw-sync/source.json
index 4ece27c50..0097f4fe2 100644
--- a/.openclaw-sync/source.json
+++ b/.openclaw-sync/source.json
@@ -1,5 +1,5 @@
 {
   "repository": "openclaw/openclaw",
-  "sha": "2641b052dc8916fd7d67fd92ef87db7a1cf12082",
-  "syncedAt": "2026-04-21T03:59:33.131Z"
+  "sha": "1303b032412bb7483ef5ce00f5b8e3c6a0c6874d",
+  "syncedAt": "2026-04-21T04:18:42.200Z"
 }
diff --git a/docs/.generated/config-baseline.sha256 b/docs/.generated/config-baseline.sha256
index 549c0a09b..b04602786 100644
--- a/docs/.generated/config-baseline.sha256
+++ b/docs/.generated/config-baseline.sha256
@@ -1,4 +1,4 @@
-580abc79677d84fa66cb55e42ea093bfa9681655861166c02dfaa5a313d44310  config-baseline.json
-04a82c2208bf69e0a195e7712e3a518a8255c1bb002c31f712cb95003325635b  config-baseline.core.json
+e3a16ceb9e933c5b707b717c18a1d9d50f98e687a98e6c35f4f3a290f7036a62  config-baseline.json
+ae1ab87635e7bf613c84fee04425af901ceeb67fb5dbcf1c74095aa00a59ee88  config-baseline.core.json
 e239cc20f20f8d0172812bc0ad3ee6df52da88e2e2702e3d03a47e01561132ae  config-baseline.channel.json
 8fb3a1cf5fe56ab8fc2cb46341c3403aed32b0d1f0aaeac0e96cd3599db4f06e  config-baseline.plugin.json
diff --git a/docs/.generated/plugin-sdk-api-baseline.sha256 b/docs/.generated/plugin-sdk-api-baseline.sha256
index 310733b38..ad04d7d6f 100644
--- a/docs/.generated/plugin-sdk-api-baseline.sha256
+++ b/docs/.generated/plugin-sdk-api-baseline.sha256
@@ -1,2 +1,2 @@
-e6da774a43c16fddc77e04b0d2888d06454d1adb84814c8db4fee0f495c1eec1  plugin-sdk-api-baseline.json
-ef8b5fd8081dfa05740f6a609144e755d95a19196a1617037dba1213134699df  plugin-sdk-api-baseline.jsonl
+f135ddc1802b7f8b2d29bf495fd0ac1f497a89bab8164ca8c7c8f18efc010e6e  plugin-sdk-api-baseline.json
+a47d06095ec5c3701a94888a11e89700d8a8511db46fa3122fb9407e160707b6  plugin-sdk-api-baseline.jsonl
diff --git a/docs/concepts/messages.md b/docs/concepts/messages.md
index bcd2fc9da..4e9240c0c 100644
--- a/docs/concepts/messages.md
+++ b/docs/concepts/messages.md
@@ -153,6 +153,20 @@ Outbound message formatting is centralized in `messages`:
 
 Details: [Configuration](/gateway/configuration-reference#messages) and channel docs.
 
+## Silent replies
+
+The exact silent token `NO_REPLY` / `no_reply` means “do not deliver a user-visible reply”.
+OpenClaw resolves that behavior by conversation type:
+
+- Direct conversations disallow silence by default and rewrite a bare silent
+  reply to a short visible fallback.
+- Groups/channels allow silence by default.
+- Internal orchestration allows silence by default.
+
+Defaults live under `agents.defaults.silentReply` and
+`agents.defaults.silentReplyRewrite`; `surfaces.<id>.silentReply` and
+`surfaces.<id>.silentReplyRewrite` can override them per surface.
+
 ## Related
 
 - [Streaming](/concepts/streaming) — real-time message delivery
diff --git a/docs/plugins/sdk-channel-plugins.md b/docs/plugins/sdk-channel-plugins.md
index b799f3e1b..8a7091af4 100644
--- a/docs/plugins/sdk-channel-plugins.md
+++ b/docs/plugins/sdk-channel-plugins.md
@@ -167,7 +167,7 @@ surfaces:
 - `openclaw/plugin-sdk/messaging-targets` for target parsing/matching
 - `openclaw/plugin-sdk/outbound-media` and
   `openclaw/plugin-sdk/outbound-runtime` for media loading plus outbound
-  identity/send delegates
+  identity/send delegates and payload planning
 - `openclaw/plugin-sdk/thread-bindings-runtime` for thread-binding lifecycle
   and adapter registration
 - `openclaw/plugin-sdk/agent-media-payload` only when a legacy agent/media
diff --git a/docs/plugins/sdk-migration.md b/docs/plugins/sdk-migration.md
index d17ac0caf..cc03ff7ab 100644
--- a/docs/plugins/sdk-migration.md
+++ b/docs/plugins/sdk-migration.md
@@ -207,7 +207,7 @@ Current bundled provider examples:
   | `plugin-sdk/inbound-reply-dispatch` | Inbound reply helpers | Shared record-and-dispatch helpers |
   | `plugin-sdk/messaging-targets` | Messaging target parsing | Target parsing/matching helpers |
   | `plugin-sdk/outbound-media` | Outbound media helpers | Shared outbound media loading |
-  | `plugin-sdk/outbound-runtime` | Outbound runtime helpers | Outbound identity/send delegate helpers |
+  | `plugin-sdk/outbound-runtime` | Outbound runtime helpers | Outbound identity/send delegate and payload planning helpers |
   | `plugin-sdk/thread-bindings-runtime` | Thread-binding helpers | Thread-binding lifecycle and adapter helpers |
   | `plugin-sdk/agent-media-payload` | Legacy media payload helpers | Agent media payload builder for legacy field layouts |
   | `plugin-sdk/channel-runtime` | Deprecated compatibility shim | Legacy channel runtime utilities only |
diff --git a/docs/plugins/sdk-overview.md b/docs/plugins/sdk-overview.md
index f08d6d228..9613d5f9e 100644
--- a/docs/plugins/sdk-overview.md
+++ b/docs/plugins/sdk-overview.md
@@ -95,7 +95,7 @@ explicitly promotes one as public.
     | `plugin-sdk/inbound-reply-dispatch` | Shared inbound record-and-dispatch helpers |
     | `plugin-sdk/messaging-targets` | Target parsing/matching helpers |
     | `plugin-sdk/outbound-media` | Shared outbound media loading helpers |
-    | `plugin-sdk/outbound-runtime` | Outbound identity/send delegate helpers |
+    | `plugin-sdk/outbound-runtime` | Outbound identity, send delegate, and payload planning helpers |
     | `plugin-sdk/poll-runtime` | Narrow poll normalization helpers |
     | `plugin-sdk/thread-bindings-runtime` | Thread-binding lifecycle and adapter helpers |
     | `plugin-sdk/agent-media-payload` | Legacy agent media payload builder |