diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4496968a21..ddae8cc2207 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ Docs: https://docs.openclaw.ai
 - Bind gateway approval access to requester metadata [AI]. (#81380) Thanks @pgondhi987.
 - Telegram: let isolated polling drain independent topics, DMs, and status/control commands concurrently while preserving same-lane order. (#81849) Thanks @VACInc.
 - Ollama/Doctor: copy explicit native Ollama `contextWindow` or `maxTokens` provider/model budgets into `params.num_ctx` during `openclaw doctor --fix`, preserving large-context configs after native Ollama stopped inferring per-request `num_ctx`. Fixes #81878. (#81928) Thanks @joshavant and @ArthurusDent.
+- Discord: honor `threadName` on `message send` to existing threads by renaming the thread after successful delivery, and warn when the rename cannot be applied. Fixes #81836. (#81933) Thanks @joshavant.
 - Doctor/Codex: stop warning that the message tool is unavailable for source-reply paths where OpenClaw grants `message` at runtime, keeping update and doctor output aligned with the OpenAI happy path. Thanks @pashpashpash.
 - Build: keep externalized Slack, OpenShell sandbox, and Anthropic Vertex runtime dependency declarations out of the root dist artifact build.
 - Auto-reply/Claude CLI: bridge CLI-runtime assistant text-delta agent events into the chat reasoning preview through `onReasoningStream`, mirroring the existing assistant-text (#76914) and tool-event (#80046) bridges and adding gating so non-CLI runtimes are unaffected. Thanks @anagnorisis2peripeteia and @pashpashpash.
diff --git a/extensions/discord/src/actions/handle-action.test.ts b/extensions/discord/src/actions/handle-action.test.ts
index bee518cfa30..007d7ba2087 100644
--- a/extensions/discord/src/actions/handle-action.test.ts
+++ b/extensions/discord/src/actions/handle-action.test.ts
@@ -167,6 +167,40 @@ describe("handleDiscordMessageAction", () => {
     });
   });
 
+  it("forwards threadName on sends", async () => {
+    const cfg = discordConfig();
+    await handleDiscordMessageAction({
+      action: "send",
+      params: {
+        target: "channel:thread-1",
+        message: "hello",
+        threadName: "Renamed thread",
+      },
+      cfg,
+    });
+
+    expectDiscordActionCall({
+      payload: {
+        action: "sendMessage",
+        accountId: undefined,
+        to: "channel:thread-1",
+        content: "hello",
+        threadName: "Renamed thread",
+        mediaUrl: undefined,
+        filename: undefined,
+        replyTo: undefined,
+        components: undefined,
+        embeds: undefined,
+        asVoice: false,
+        silent: false,
+        __sessionKey: undefined,
+        __agentId: undefined,
+      },
+      cfg,
+      options: defaultActionOptions(),
+    });
+  });
+
   it("maps upload-file to Discord sendMessage with media read context", async () => {
     const mediaReadFile = vi.fn(async () => Buffer.from("image"));
     const mediaAccess = {
diff --git a/extensions/discord/src/actions/handle-action.ts b/extensions/discord/src/actions/handle-action.ts
index 30a703a2379..473447a02a8 100644
--- a/extensions/discord/src/actions/handle-action.ts
+++ b/extensions/discord/src/actions/handle-action.ts
@@ -104,12 +104,14 @@ export async function handleDiscordMessageAction(
     const silent = readBooleanParam(params, "silent") === true;
     const sessionKey = readStringParam(params, "__sessionKey");
     const agentId = readStringParam(params, "__agentId");
+    const threadName = readStringParam(params, "threadName");
     return await handleDiscordAction(
       {
         action: "sendMessage",
         accountId: accountId ?? undefined,
         to,
         content: content ?? "",
+        ...(threadName ? { threadName } : {}),
         mediaUrl: mediaUrl ?? undefined,
         filename: filename ?? undefined,
         replyTo: replyTo ?? undefined,
diff --git a/extensions/discord/src/actions/runtime.messaging.runtime.ts b/extensions/discord/src/actions/runtime.messaging.runtime.ts
index 9c8f14a5148..81a22c4387a 100644
--- a/extensions/discord/src/actions/runtime.messaging.runtime.ts
+++ b/extensions/discord/src/actions/runtime.messaging.runtime.ts
@@ -5,6 +5,8 @@ import {
   createThreadDiscord,
   deleteMessageDiscord,
   editMessageDiscord,
+  editChannelDiscord,
+  fetchChannelInfoDiscord,
   fetchChannelPermissionsDiscord,
   fetchMessageDiscord,
   fetchReactionsDiscord,
@@ -28,7 +30,9 @@ import { resolveDiscordChannelId } from "../targets.js";
 export const discordMessagingActionRuntime = {
   createThreadDiscord,
   deleteMessageDiscord,
+  editChannelDiscord,
   editMessageDiscord,
+  fetchChannelInfoDiscord,
   fetchChannelPermissionsDiscord,
   fetchMessageDiscord,
   fetchReactionsDiscord,
diff --git a/extensions/discord/src/actions/runtime.messaging.send.ts b/extensions/discord/src/actions/runtime.messaging.send.ts
index 35814685408..49c939e9ea4 100644
--- a/extensions/discord/src/actions/runtime.messaging.send.ts
+++ b/extensions/discord/src/actions/runtime.messaging.send.ts
@@ -1,3 +1,4 @@
+import { formatErrorMessage } from "openclaw/plugin-sdk/error-runtime";
 import {
   assertMediaNotDataUrl,
   jsonResult,
@@ -8,6 +9,7 @@ import {
   resolvePollMaxSelections,
 } from "../runtime-api.js";
 import { DiscordThreadInitialMessageError } from "../send.js";
+import { isThreadChannelType } from "../send.permissions.js";
 import type { DiscordSendComponents, DiscordSendEmbeds } from "../send.shared.js";
 import { discordMessagingActionRuntime } from "./runtime.messaging.runtime.js";
 import type { DiscordMessagingActionContext } from "./runtime.messaging.shared.js";
@@ -21,6 +23,69 @@ function hasDiscordComponentObjectKeys(value: unknown): value is Record<string,
   );
 }
 
+async function appendDiscordThreadRenameResult(
+  ctx: DiscordMessagingActionContext,
+  params: {
+    payload: Record<string, unknown>;
+    target: string;
+    threadName?: string;
+  },
+) {
+  const threadName = params.threadName?.trim();
+  if (!threadName) {
+    return params.payload;
+  }
+  if (!ctx.isActionEnabled("channels")) {
+    return {
+      ...params.payload,
+      warning: "Discord threadName was ignored because Discord channel management is disabled.",
+    };
+  }
+
+  let channelId: string;
+  try {
+    channelId = discordMessagingActionRuntime.resolveDiscordChannelId(params.target);
+  } catch {
+    return {
+      ...params.payload,
+      warning: "Discord threadName was ignored because the send target is not a channel/thread.",
+    };
+  }
+
+  try {
+    const channel = await discordMessagingActionRuntime.fetchChannelInfoDiscord(
+      channelId,
+      ctx.withOpts(),
+    );
+    if (!isThreadChannelType(channel.type)) {
+      return {
+        ...params.payload,
+        warning: "Discord threadName was ignored because the send target is not a thread.",
+      };
+    }
+    const renamed = await discordMessagingActionRuntime.editChannelDiscord(
+      {
+        channelId,
+        name: threadName,
+      },
+      ctx.withOpts(),
+    );
+    return {
+      ...params.payload,
+      threadRename: {
+        ok: true,
+        channelId,
+        name: renamed.name ?? threadName,
+      },
+    };
+  } catch (error) {
+    return {
+      ...params.payload,
+      warning: `Discord message was sent, but thread rename failed: ${formatErrorMessage(error)}`,
+    };
+  }
+}
+
 export async function handleDiscordMessageSendAction(ctx: DiscordMessagingActionContext) {
   switch (ctx.action) {
     case "sticker": {
@@ -88,6 +153,7 @@ export async function handleDiscordMessageSendAction(ctx: DiscordMessagingAction
       });
       const filename = readStringParam(ctx.params, "filename");
       const replyTo = readStringParam(ctx.params, "replyTo");
+      const threadName = readStringParam(ctx.params, "threadName");
       const rawEmbeds = ctx.params.embeds;
       const embeds: DiscordSendEmbeds | undefined = Array.isArray(rawEmbeds)
         ? (rawEmbeds as DiscordSendEmbeds)
@@ -122,7 +188,13 @@ export async function handleDiscordMessageSendAction(ctx: DiscordMessagingAction
             mediaReadFile: ctx.options?.mediaReadFile,
           },
         );
-        return jsonResult({ ok: true, result, components: true });
+        return jsonResult(
+          await appendDiscordThreadRenameResult(ctx, {
+            payload: { ok: true, result, components: true },
+            target: to,
+            threadName,
+          }),
+        );
       }
 
       if (asVoice) {
@@ -142,7 +214,13 @@ export async function handleDiscordMessageSendAction(ctx: DiscordMessagingAction
           replyTo,
           silent,
         });
-        return jsonResult({ ok: true, result, voiceMessage: true });
+        return jsonResult(
+          await appendDiscordThreadRenameResult(ctx, {
+            payload: { ok: true, result, voiceMessage: true },
+            target: to,
+            threadName,
+          }),
+        );
       }
 
       const result = await discordMessagingActionRuntime.sendMessageDiscord(to, content ?? "", {
@@ -157,7 +235,13 @@ export async function handleDiscordMessageSendAction(ctx: DiscordMessagingAction
         embeds,
         silent,
       });
-      return jsonResult({ ok: true, result });
+      return jsonResult(
+        await appendDiscordThreadRenameResult(ctx, {
+          payload: { ok: true, result },
+          target: to,
+          threadName,
+        }),
+      );
     }
     case "threadCreate": {
       if (!ctx.isActionEnabled("threads")) {
diff --git a/extensions/discord/src/actions/runtime.test.ts b/extensions/discord/src/actions/runtime.test.ts
index 337319c0271..a1dd6cb4554 100644
--- a/extensions/discord/src/actions/runtime.test.ts
+++ b/extensions/discord/src/actions/runtime.test.ts
@@ -34,6 +34,7 @@ const discordSendMocks = {
     name: "edited",
   })),
   editMessageDiscord: vi.fn(async () => ({})),
+  fetchChannelInfoDiscord: vi.fn(async () => ({ id: "C1", type: 0 })),
   fetchChannelPermissionsDiscord: vi.fn(async () => ({})),
   fetchMessageDiscord: vi.fn(async () => ({})),
   fetchReactionsDiscord: vi.fn(async () => ({})),
@@ -64,6 +65,7 @@ const {
   createThreadDiscord,
   deleteChannelDiscord,
   editChannelDiscord,
+  fetchChannelInfoDiscord,
   fetchReactionsDiscord,
   fetchMessageDiscord,
   kickMemberDiscord,
@@ -594,6 +596,166 @@ describe("handleDiscordMessagingAction", () => {
     expect(sendOptions.filename).toBe("image.png");
   });
 
+  it("renames an existing thread when threadName is provided on sendMessage", async () => {
+    sendMessageDiscord.mockResolvedValueOnce({
+      messageId: "M1",
+      channelId: "T1",
+    });
+    fetchChannelInfoDiscord.mockResolvedValueOnce({
+      id: "T1",
+      type: 11,
+    });
+    editChannelDiscord.mockResolvedValueOnce({
+      id: "T1",
+      name: "new-thread",
+    });
+
+    const result = await handleMessagingAction(
+      "sendMessage",
+      {
+        to: "channel:T1",
+        content: "hello",
+        threadName: "new-thread",
+      },
+      enableAllActions,
+    );
+
+    expect(sendMessageDiscord).toHaveBeenCalledWith("channel:T1", "hello", {
+      cfg: DISCORD_TEST_CFG,
+      accountId: undefined,
+      mediaAccess: undefined,
+      mediaUrl: undefined,
+      filename: undefined,
+      mediaLocalRoots: undefined,
+      mediaReadFile: undefined,
+      replyTo: undefined,
+      components: undefined,
+      embeds: undefined,
+      silent: false,
+    });
+    expect(fetchChannelInfoDiscord).toHaveBeenCalledWith("T1", { cfg: DISCORD_TEST_CFG });
+    expect(editChannelDiscord).toHaveBeenCalledWith(
+      {
+        channelId: "T1",
+        name: "new-thread",
+      },
+      { cfg: DISCORD_TEST_CFG },
+    );
+    expect(result.details).toEqual({
+      ok: true,
+      result: {
+        messageId: "M1",
+        channelId: "T1",
+      },
+      threadRename: {
+        ok: true,
+        channelId: "T1",
+        name: "new-thread",
+      },
+    });
+  });
+
+  it("warns instead of renaming when threadName is provided but channel management is disabled", async () => {
+    sendMessageDiscord.mockResolvedValueOnce({
+      messageId: "M1",
+      channelId: "T1",
+    });
+
+    const messagesOnly = (key: keyof DiscordActionConfig) => key === "messages";
+    const result = await handleMessagingAction(
+      "sendMessage",
+      {
+        to: "channel:T1",
+        content: "hello",
+        threadName: "new-thread",
+      },
+      messagesOnly,
+    );
+
+    expect(sendMessageDiscord).toHaveBeenCalledTimes(1);
+    expect(fetchChannelInfoDiscord).not.toHaveBeenCalled();
+    expect(editChannelDiscord).not.toHaveBeenCalled();
+    expect(result.details).toEqual({
+      ok: true,
+      result: {
+        messageId: "M1",
+        channelId: "T1",
+      },
+      warning: "Discord threadName was ignored because Discord channel management is disabled.",
+    });
+  });
+
+  it("warns instead of renaming when threadName is provided for a non-thread send target", async () => {
+    sendMessageDiscord.mockResolvedValueOnce({
+      messageId: "M1",
+      channelId: "C1",
+    });
+    fetchChannelInfoDiscord.mockResolvedValueOnce({
+      id: "C1",
+      type: 0,
+    });
+
+    const result = await handleMessagingAction(
+      "sendMessage",
+      {
+        to: "channel:C1",
+        content: "hello",
+        threadName: "new-thread",
+      },
+      enableAllActions,
+    );
+
+    expect(fetchChannelInfoDiscord).toHaveBeenCalledWith("C1", { cfg: DISCORD_TEST_CFG });
+    expect(editChannelDiscord).not.toHaveBeenCalled();
+    expect(result.details).toEqual({
+      ok: true,
+      result: {
+        messageId: "M1",
+        channelId: "C1",
+      },
+      warning: "Discord threadName was ignored because the send target is not a thread.",
+    });
+  });
+
+  it("preserves message delivery and warns when thread rename fails", async () => {
+    sendMessageDiscord.mockResolvedValueOnce({
+      messageId: "M1",
+      channelId: "T1",
+    });
+    fetchChannelInfoDiscord.mockResolvedValueOnce({
+      id: "T1",
+      type: 11,
+    });
+    editChannelDiscord.mockRejectedValueOnce(new Error("missing permissions"));
+
+    const result = await handleMessagingAction(
+      "sendMessage",
+      {
+        to: "channel:T1",
+        content: "hello",
+        threadName: "new-thread",
+      },
+      enableAllActions,
+    );
+
+    expect(sendMessageDiscord).toHaveBeenCalledTimes(1);
+    expect(editChannelDiscord).toHaveBeenCalledWith(
+      {
+        channelId: "T1",
+        name: "new-thread",
+      },
+      { cfg: DISCORD_TEST_CFG },
+    );
+    expect(result.details).toEqual({
+      ok: true,
+      result: {
+        messageId: "M1",
+        channelId: "T1",
+      },
+      warning: "Discord message was sent, but thread rename failed: missing permissions",
+    });
+  });
+
   it("rejects voice messages that include content", async () => {
     await expect(
       handleMessagingAction(