diff --git a/app/components/copilot/ChatSharePanel.tsx b/app/components/copilot/ChatSharePanel.tsx
new file mode 100644
index 0000000..6a04f19
--- /dev/null
+++ b/app/components/copilot/ChatSharePanel.tsx
@@ -0,0 +1,180 @@
+"use client";
+
+import { useMemo, useState } from "react";
+import { requestJSON } from "@/app/lib/api";
+import { useAsyncState } from "@/app/lib/hooks";
+import { Pill } from "@/app/lib/ui";
+import {
+  buildChatSharePath,
+  buildChatShareTitle,
+  buildProviderSharePayload,
+  type ShareableChatTurn,
+} from "@/app/lib/chatShare";
+
+type ChatSharePanelProps = {
+  chatId: string;
+  turns: ShareableChatTurn[];
+};
+
+export function ChatSharePanel({ chatId, turns }: ChatSharePanelProps) {
+  const [shareChannel, setShareChannel] = useState("#ops");
+  const [linkStatus, setLinkStatus] = useState("");
+  const [shareNotice, setShareNotice] = useState("");
+  const [isOpen, setIsOpen] = useState(false);
+  const [showProviderForm, setShowProviderForm] = useState(false);
+  const shareState = useAsyncState();
+
+  const shareTitle = useMemo(() => buildChatShareTitle(turns), [turns]);
+
+  const getChatUrl = () => {
+    if (typeof window === "undefined") return "";
+    return `${window.location.origin}${buildChatSharePath(chatId)}`;
+  };
+
+  const copyShareLink = async () => {
+    try {
+      if (!navigator.clipboard) {
+        throw new Error("Clipboard is not available in this browser");
+      }
+      await navigator.clipboard.writeText(getChatUrl());
+      setLinkStatus("Link copied");
+    } catch (err) {
+      setLinkStatus(err instanceof Error ? err.message : "Failed to copy link");
+    }
+  };
+
+  const shareChatLink = async () => {
+    const chatUrl = getChatUrl();
+    if (!chatUrl) return;
+
+    if (typeof navigator !== "undefined" && typeof navigator.share === "function") {
+      try {
+        await navigator.share({
+          title: shareTitle,
+          text: "Open this OpsOrch Copilot chat",
+          url: chatUrl,
+        });
+        setLinkStatus("Share sheet opened");
+        return;
+      } catch (err) {
+        const errorName = err instanceof Error ? err.name : "";
+        if (errorName === "AbortError") {
+          setLinkStatus("");
+          return;
+        }
+      }
+    }
+
+    await copyShareLink();
+  };
+
+  const sendSharedChat = async () => {
+    if (!shareChannel.trim()) return;
+
+    shareState.start();
+    try {
+      const payload = buildProviderSharePayload({
+        chatId,
+        chatUrl: getChatUrl(),
+        turns,
+      });
+      await requestJSON("/messages/send", {
+        method: "POST",
+        body: JSON.stringify({
+          channel: shareChannel.trim(),
+          ...payload,
+        }),
+      });
+      shareState.succeed();
+      setShareNotice(`Sent to ${shareChannel.trim()}`);
+      setShowProviderForm(false);
+    } catch (err) {
+      shareState.fail(err);
+      setShareNotice("");
+    }
+  };
+
+  return (
+    <div className="relative">
+      <button
+        type="button"
+        onClick={() => setIsOpen((open) => !open)}
+        className="inline-flex h-9 items-center justify-center rounded-lg border border-slate-200 bg-white px-3 text-[11px] font-semibold uppercase tracking-wide text-slate-600 transition hover:border-slate-300 hover:text-slate-800"
+      >
+        Share
+      </button>
+      {isOpen ? (
+        <div className="absolute right-0 top-11 z-20 flex w-72 flex-col gap-3 rounded-xl border border-slate-200 bg-white p-3 shadow-lg">
+          <div className="flex items-start justify-between gap-3">
+            <div className="min-w-0">
+              <p className="text-xs font-semibold uppercase tracking-wide text-slate-600">Share chat</p>
+              <p className="truncate text-[11px] text-slate-500">{shareTitle}</p>
+            </div>
+            <button
+              type="button"
+              onClick={() => {
+                setIsOpen(false);
+                setShowProviderForm(false);
+              }}
+              className="text-xs text-slate-400 transition hover:text-slate-700"
+            >
+              Close
+            </button>
+          </div>
+
+          <div className="flex flex-wrap items-center gap-2 text-xs">
+            <button
+              type="button"
+              onClick={shareChatLink}
+              className="text-slate-600 transition hover:text-slate-900"
+            >
+              Share link
+            </button>
+            <span className="text-slate-300">/</span>
+            <button
+              type="button"
+              onClick={copyShareLink}
+              className="text-slate-600 transition hover:text-slate-900"
+            >
+              Copy link
+            </button>
+            <span className="text-slate-300">/</span>
+            <button
+              type="button"
+              onClick={() => setShowProviderForm((open) => !open)}
+              className="text-slate-600 transition hover:text-slate-900"
+            >
+              Send message
+            </button>
+          </div>
+
+          {showProviderForm ? (
+            <div className="flex flex-wrap items-center gap-2 rounded-lg border border-slate-200 bg-slate-50 px-2.5 py-2">
+              <input
+                type="text"
+                value={shareChannel}
+                onChange={(e) => setShareChannel(e.target.value)}
+                placeholder="#ops"
+                className="h-8 min-w-[8rem] flex-1 rounded-md border border-slate-300 bg-white px-2 text-xs text-slate-900 focus:border-[#55cfd0] focus:outline-none focus:ring-2 focus:ring-[#55cfd0]/20"
+              />
+              <button
+                type="button"
+                onClick={sendSharedChat}
+                disabled={shareState.loading || !shareChannel.trim()}
+                className="rounded-md bg-[#55cfd0] px-3 py-1.5 text-[11px] font-semibold text-[#0b1517] transition hover:bg-[#3fb8b8] disabled:cursor-not-allowed disabled:bg-[#b7eded]"
+              >
+                {shareState.loading ? "Sending..." : "Send"}
+              </button>
+            </div>
+          ) : null}
+
+          <div className="flex flex-wrap gap-2">
+            {linkStatus ? <Pill label={linkStatus} /> : null}
+            {shareNotice ? <Pill label={shareNotice} tone="success" /> : null}
+            {shareState.error ? <Pill label={shareState.error} tone="error" /> : null}
+          </div>
+        </div>
+      ) : null}
+    </div>
+  );
+}
diff --git a/app/components/copilot/CopilotPanel.tsx b/app/components/copilot/CopilotPanel.tsx
index e9a0f5c..231a531 100644
--- a/app/components/copilot/CopilotPanel.tsx
+++ b/app/components/copilot/CopilotPanel.tsx
@@ -4,10 +4,12 @@ import { useEffect, useMemo, useRef, useState } from "react";
 import { CopilotAnswer, CopilotReferences, TurnExecutionTrace } from "@/app/lib/types";
 import { useAsyncState } from "@/app/lib/hooks";
 import { Field, Pill, Section, TextArea } from "@/app/lib/ui";
+import { ChatSharePanel } from "@/app/components/copilot/ChatSharePanel";
 import { ConfidenceBar } from "@/app/components/copilot/ConfidenceBar";
 import { CopilotConclusion } from "@/app/components/copilot/CopilotConclusion";
 import { ResponseDetailsContent } from "@/app/components/copilot/ResponseDetails";
 import { parseJsonString, stringifyData } from "@/app/lib/utils";
+import { type ShareableChatTurn } from "@/app/lib/chatShare";
 
 type CopilotTurn = {
   id: string;
@@ -83,6 +85,15 @@ export function CopilotPanel({ initialChatId }: { initialChatId?: string }) {
     [turns.length],
   );
   const showSessionStamp = Boolean(chatId);
+  const shareableTurns = useMemo<ShareableChatTurn[]>(
+    () =>
+      turns.map((turn) => ({
+        role: turn.role,
+        text: turn.role === "copilot" ? turn.answer?.conclusion || turn.text : turn.text,
+      })),
+    [turns],
+  );
+  const canShare = Boolean(chatId) && shareableTurns.length > 0;
 
   const ask = async () => {
     const trimmed = question.trim();
@@ -191,6 +202,7 @@ export function CopilotPanel({ initialChatId }: { initialChatId?: string }) {
         title="Copilot"
         action={
           <div className="flex items-center gap-3 text-xs">
+            {canShare && chatId ? <ChatSharePanel chatId={chatId} turns={shareableTurns} /> : null}
             <button
               type="button"
               onClick={() => {
diff --git a/app/lib/chatShare.ts b/app/lib/chatShare.ts
new file mode 100644
index 0000000..d6bc003
--- /dev/null
+++ b/app/lib/chatShare.ts
@@ -0,0 +1,130 @@
+export type ShareableChatTurn = {
+  role: "user" | "copilot" | "error";
+  text: string;
+};
+
+type ProviderShareOptions = {
+  chatId: string;
+  chatUrl: string;
+  turns: ShareableChatTurn[];
+};
+
+type MessageBlock = {
+  type: "header" | "section" | "divider";
+  text?: string;
+  fields?: Record<string, string>;
+};
+
+export type ProviderSharePayload = {
+  body: string;
+  metadata: Record<string, string | number>;
+  blocks: MessageBlock[];
+};
+
+const DEFAULT_SHARE_TITLE = "OpsOrch Copilot chat";
+const MAX_TURN_LENGTH = 280;
+
+function normalizeTitleText(text: string) {
+  const collapsed = text.replace(/\s+/g, " ").trim();
+  if (collapsed.length <= MAX_TURN_LENGTH) return collapsed;
+  return `${collapsed.slice(0, MAX_TURN_LENGTH - 1)}…`;
+}
+
+function formatTurnText(text: string) {
+  const normalized = text
+    .replace(/\r\n/g, "\n")
+    .split("\n")
+    .map((line) => line.replace(/[ \t]+$/g, ""))
+    .join("\n")
+    .replace(/\n{3,}/g, "\n\n")
+    .trim();
+
+  if (normalized.length <= MAX_TURN_LENGTH) return normalized;
+  return `${normalized.slice(0, MAX_TURN_LENGTH - 1).trimEnd()}…`;
+}
+
+function getRoleLabel(role: ShareableChatTurn["role"]) {
+  if (role === "user") return "You";
+  if (role === "copilot") return "Copilot";
+  return "Error";
+}
+
+function selectShareTurns(turns: ShareableChatTurn[]) {
+  const firstUserTurn = turns.find((turn) => turn.role === "user" && turn.text.trim().length > 0);
+  const lastResponseTurn =
+    [...turns].reverse().find((turn) => turn.role === "copilot" && turn.text.trim().length > 0) ||
+    [...turns].reverse().find((turn) => turn.role !== "user" && turn.text.trim().length > 0);
+
+  return [firstUserTurn, lastResponseTurn].filter(
+    (turn, index, list): turn is ShareableChatTurn => Boolean(turn) && list.indexOf(turn) === index,
+  );
+}
+
+export function buildChatSharePath(chatId: string) {
+  return `/chats/${encodeURIComponent(chatId)}`;
+}
+
+export function buildChatShareTitle(turns: ShareableChatTurn[]) {
+  const firstUserTurn = turns.find((turn) => turn.role === "user" && turn.text.trim().length > 0);
+  if (!firstUserTurn) return DEFAULT_SHARE_TITLE;
+  const normalized = normalizeTitleText(firstUserTurn.text);
+  return normalized.length <= 72 ? normalized : `${normalized.slice(0, 71)}…`;
+}
+
+export function buildChatShareTranscript(turns: ShareableChatTurn[]) {
+  return selectShareTurns(turns)
+    .map((turn) => `### ${getRoleLabel(turn.role)}\n${formatTurnText(turn.text) || "_No content_"}`)
+    .join("\n\n");
+}
+
+export function buildProviderSharePayload({
+  chatId,
+  chatUrl,
+  turns,
+}: ProviderShareOptions): ProviderSharePayload {
+  const title = buildChatShareTitle(turns);
+  const transcript = buildChatShareTranscript(turns);
+  const selectedTurns = selectShareTurns(turns);
+  const firstQuestion = selectedTurns.find((turn) => turn.role === "user");
+  const lastConclusion = selectedTurns.find((turn) => turn.role !== "user");
+  const questionText = firstQuestion ? formatTurnText(firstQuestion.text) : "";
+  const conclusionText = lastConclusion ? formatTurnText(lastConclusion.text) : "";
+  const body = [
+    `OpsOrch Copilot: ${title}`,
+    "",
+    questionText ? `Question:\n${questionText}` : "",
+    "",
+    conclusionText ? `Latest conclusion:\n${conclusionText}` : "",
+    "",
+    `Open chat: [${title}](${chatUrl})`,
+  ]
+    .filter(Boolean)
+    .join("\n");
+
+  return {
+    body,
+    metadata: {
+      chatId,
+      chatUrl,
+      shareTitle: title,
+      turnCount: turns.length,
+    },
+    blocks: [
+      { type: "header", text: "OpsOrch Copilot Chat" },
+      { type: "section", text: `*${title}*` },
+      {
+        type: "section",
+        fields: {
+          "Chat ID": chatId,
+          Turns: String(turns.length),
+        },
+      },
+      { type: "divider" },
+      ...(firstQuestion ? [{ type: "section" as const, text: `*Initial question*\n${formatTurnText(firstQuestion.text) || "_No content_"}` }] : []),
+      ...(lastConclusion ? [{ type: "section" as const, text: `*Latest conclusion*\n${formatTurnText(lastConclusion.text) || "_No content_"}` }] : []),
+      { type: "divider" },
+      { type: "section", text: `[Open full chat](${chatUrl})` },
+      ...(transcript ? [{ type: "section" as const, text: transcript }] : []),
+    ],
+  };
+}
diff --git a/tests/chatShare.test.ts b/tests/chatShare.test.ts
new file mode 100644
index 0000000..93ae427
--- /dev/null
+++ b/tests/chatShare.test.ts
@@ -0,0 +1,62 @@
+import assert from "node:assert";
+import test from "node:test";
+import {
+  buildChatSharePath,
+  buildChatShareTitle,
+  buildProviderSharePayload,
+} from "../app/lib/chatShare.js";
+
+test("buildChatSharePath encodes the chat id", () => {
+  assert.equal(buildChatSharePath("chat/alpha 1"), "/chats/chat%2Falpha%201");
+});
+
+test("buildChatShareTitle uses the first user turn", () => {
+  const title = buildChatShareTitle([
+    { role: "copilot", text: "I can help with that." },
+    { role: "user", text: "Summarize the checkout-service incident and recent mitigations" },
+  ]);
+
+  assert.equal(title, "Summarize the checkout-service incident and recent mitigations");
+});
+
+test("buildProviderSharePayload includes a link and recent transcript", () => {
+  const payload = buildProviderSharePayload({
+    chatId: "chat-123",
+    chatUrl: "https://console.example/chats/chat-123",
+    turns: [
+      { role: "user", text: "What changed in checkout-service?" },
+      { role: "copilot", text: "The latest deploy increased error rate and rollback is in progress." },
+    ],
+  });
+
+  assert.equal(payload.metadata.chatId, "chat-123");
+  assert.match(payload.body, /OpsOrch Copilot: What changed in checkout-service\?/);
+  assert.match(payload.body, /Question:\nWhat changed in checkout-service\?/);
+  assert.match(payload.body, /Latest conclusion:\nThe latest deploy increased error rate and rollback is in progress\./);
+  assert.match(payload.body, /Open chat: \[What changed in checkout-service\?\]\(https:\/\/console\.example\/chats\/chat-123\)/);
+  assert.equal(payload.blocks[0]?.type, "header");
+  assert.deepEqual(payload.blocks[2]?.fields, { "Chat ID": "chat-123", Turns: "2" });
+  assert.equal(payload.blocks[4]?.text, "*Initial question*\nWhat changed in checkout-service?");
+  assert.equal(payload.blocks[5]?.text, "*Latest conclusion*\nThe latest deploy increased error rate and rollback is in progress.");
+});
+
+test("buildProviderSharePayload uses the initial question and last copilot conclusion", () => {
+  const payload = buildProviderSharePayload({
+    chatId: "chat-456",
+    chatUrl: "https://console.example/chats/chat-456",
+    turns: [
+      { role: "user", text: "Summarize the checkout incident" },
+      { role: "copilot", text: "Initial summary" },
+      { role: "user", text: "What about mitigation steps?" },
+      { role: "copilot", text: "Mitigation summary\n- Rollback completed\n- Error rate normalized" },
+    ],
+  });
+
+  assert.match(payload.body, /Question:\nSummarize the checkout incident/);
+  assert.match(payload.body, /Latest conclusion:\nMitigation summary\n- Rollback completed\n- Error rate normalized/);
+  assert.doesNotMatch(payload.body, /Initial summary/);
+  assert.doesNotMatch(payload.body, /What about mitigation steps\?/);
+  assert.equal(payload.blocks[4]?.text, "*Initial question*\nSummarize the checkout incident");
+  assert.equal(payload.blocks[5]?.text, "*Latest conclusion*\nMitigation summary\n- Rollback completed\n- Error rate normalized");
+  assert.equal(payload.blocks[0]?.type, "header");
+});