From dd145f1346c944e7b2df22283bd470afd971adaf Mon Sep 17 00:00:00 2001
From: Peter Steinberger <steipete@gmail.com>
Date: Tue, 24 Feb 2026 03:48:56 +0000
Subject: [PATCH] fix: suppress sessions_send warning leakage coverage (#24740)
 (thanks @Glucksberg)

---
 CHANGELOG.md                                  |  1 +
 .../pi-embedded-runner/run/payloads.test.ts   | 22 +++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab56cece4..d283cb74f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ Docs: https://docs.openclaw.ai
 - Exec/Bash tools: clamp poll sleep duration to non-negative values in process polling loops. (#24889)
 - Subagents/Announce queue: add exponential backoff when queue-drain delivery fails to reduce retry storms. (#24783)
 - Config/Kilo Gateway: Kilo provider flow now surfaces an updated list of models. (#24921) thanks @gumadeiras.
+- Agents/Tool warnings: suppress `sessions_send` relay errors from chat-facing warning payloads to avoid leaking transient inter-session transport failures. (#24740) Thanks @Glucksberg.
 - WhatsApp/Logging: redact outbound recipient identifiers in WhatsApp outbound + heartbeat logs and remove message/poll preview text from those log lines. (#24980) Thanks @coygeek.
 - WhatsApp/Auto-reply: send only final payloads to WhatsApp, suppress tool/block payload leakage (reasoning/thinking), and force block streaming off for WhatsApp dispatch so final-only delivery cannot cause silent turns. (#24962) Thanks @SidQin-cyber.
 - Telegram/Media SSRF: keep RFC2544 benchmark range (`198.18.0.0/15`) blocked by default, add an explicit SSRF-policy opt-in for Telegram media downloads, and keep other channels/URL fetch paths blocked. (#24982) Thanks @stakeswky.
diff --git a/src/agents/pi-embedded-runner/run/payloads.test.ts b/src/agents/pi-embedded-runner/run/payloads.test.ts
index 5d950f2ee..ee8acd1d4 100644
--- a/src/agents/pi-embedded-runner/run/payloads.test.ts
+++ b/src/agents/pi-embedded-runner/run/payloads.test.ts
@@ -60,4 +60,26 @@ describe("buildEmbeddedRunPayloads tool-error warnings", () => {
       absentDetail,
     });
   });
+
+  it("suppresses sessions_send errors to avoid leaking transient relay failures", () => {
+    const payloads = buildPayloads({
+      lastToolError: { toolName: "sessions_send", error: "delivery timeout" },
+      verboseLevel: "on",
+    });
+
+    expect(payloads).toHaveLength(0);
+  });
+
+  it("suppresses sessions_send errors even when marked mutating", () => {
+    const payloads = buildPayloads({
+      lastToolError: {
+        toolName: "sessions_send",
+        error: "delivery timeout",
+        mutatingAction: true,
+      },
+      verboseLevel: "on",
+    });
+
+    expect(payloads).toHaveLength(0);
+  });
 });