diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf47073ca..e84913fbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -79,6 +79,7 @@ Docs: https://docs.clawd.bot
 - Tools: include provider/session context in elevated exec denial errors.
 - Tools: normalize exec tool alias naming in tool error logs.
 - Logging: reuse shared ANSI stripping to keep console capture lint-clean.
+- Logging: prefix nested agent output with session/run/channel context.
 - Telegram: accept tg/group/telegram prefixes + topic targets for inline button validation. (#1072) — thanks @danielz1z.
 - Telegram: split long captions into follow-up messages.
 - Config: block startup on invalid config, preserve best-effort doctor config, and keep rolling config backups. (#1083) — thanks @mukhtharcm.
diff --git a/src/commands/agent.delivery.test.ts b/src/commands/agent.delivery.test.ts
index 273fbb984..81e55927a 100644
--- a/src/commands/agent.delivery.test.ts
+++ b/src/commands/agent.delivery.test.ts
@@ -219,4 +219,43 @@ describe("deliverAgentCommandResult", () => {
       expect.objectContaining({ channel: "telegram", to: "123" }),
     );
   });
+
+  it("prefixes nested agent outputs with context", async () => {
+    const cfg = {} as ClawdbotConfig;
+    const deps = {} as CliDeps;
+    const runtime = {
+      log: vi.fn(),
+      error: vi.fn(),
+    } as unknown as RuntimeEnv;
+    const result = {
+      payloads: [{ text: "ANNOUNCE_SKIP" }],
+      meta: {},
+    };
+
+    const { deliverAgentCommandResult } = await import("./agent/delivery.js");
+    await deliverAgentCommandResult({
+      cfg,
+      deps,
+      runtime,
+      opts: {
+        message: "hello",
+        deliver: false,
+        lane: "nested",
+        sessionKey: "agent:main:main",
+        runId: "run-announce",
+        messageChannel: "webchat",
+      },
+      sessionEntry: undefined,
+      result,
+      payloads: result.payloads,
+    });
+
+    expect(runtime.log).toHaveBeenCalledTimes(1);
+    const line = String(runtime.log.mock.calls[0]?.[0]);
+    expect(line).toContain("[agent:nested]");
+    expect(line).toContain("session=agent:main:main");
+    expect(line).toContain("run=run-announce");
+    expect(line).toContain("channel=webchat");
+    expect(line).toContain("ANNOUNCE_SKIP");
+  });
 });
diff --git a/src/commands/agent/delivery.ts b/src/commands/agent/delivery.ts
index 77d1e013d..f6498a78a 100644
--- a/src/commands/agent/delivery.ts
+++ b/src/commands/agent/delivery.ts
@@ -1,3 +1,4 @@
+import { AGENT_LANE_NESTED } from "../../agents/lanes.js";
 import { getChannelPlugin, normalizeChannelId } from "../../channels/plugins/index.js";
 import { createOutboundSendDeps, type CliDeps } from "../../cli/outbound-send-deps.js";
 import type { ClawdbotConfig } from "../../config/config.js";
@@ -22,6 +23,28 @@ type RunResult = Awaited<
   ReturnType<(typeof import("../../agents/pi-embedded.js"))["runEmbeddedPiAgent"]>
 >;
 
+const NESTED_LOG_PREFIX = "[agent:nested]";
+
+function formatNestedLogPrefix(opts: AgentCommandOpts): string {
+  const parts = [NESTED_LOG_PREFIX];
+  const session = opts.sessionKey ?? opts.sessionId;
+  if (session) parts.push(`session=${session}`);
+  if (opts.runId) parts.push(`run=${opts.runId}`);
+  const channel = opts.messageChannel ?? opts.channel;
+  if (channel) parts.push(`channel=${channel}`);
+  if (opts.to) parts.push(`to=${opts.to}`);
+  if (opts.accountId) parts.push(`account=${opts.accountId}`);
+  return parts.join(" ");
+}
+
+function logNestedOutput(runtime: RuntimeEnv, opts: AgentCommandOpts, output: string) {
+  const prefix = formatNestedLogPrefix(opts);
+  for (const line of output.split(/\r?\n/)) {
+    if (!line) continue;
+    runtime.log(`${prefix} ${line}`);
+  }
+}
+
 export async function deliverAgentCommandResult(params: {
   cfg: ClawdbotConfig;
   deps: CliDeps;
@@ -112,7 +135,12 @@ export async function deliverAgentCommandResult(params: {
   const logPayload = (payload: NormalizedOutboundPayload) => {
     if (opts.json) return;
     const output = formatOutboundPayloadLog(payload);
-    if (output) runtime.log(output);
+    if (!output) return;
+    if (opts.lane === AGENT_LANE_NESTED) {
+      logNestedOutput(runtime, opts, output);
+      return;
+    }
+    runtime.log(output);
   };
   if (!deliver) {
     for (const payload of deliveryPayloads) logPayload(payload);