diff --git a/AGENTS.md b/AGENTS.md
index 2ddb1bf6a2b..8adfa88d867 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -147,26 +147,38 @@ When the Discord turn includes an **Identity map** block with ready-to-paste `Co
 4. A Discord-originated commit **without** the mapped trailers is incomplete — fix it (amend if not pushed, or a follow-up commit is not enough for GitHub multi-author on already-pushed SHAs; amend/rebase when safe).
 
 GitHub multi-author avatars (`bot & human`) come from commit trailers, not from PR body prose alone.
+If you list co-authors in the PR body, use **profile links that look like mentions**, not bare `@login` tokens (bare `@login` notifies people):
+
+```md
+- [@MindfulLearner](https://github.com/MindfulLearner)
+- [@patroza](https://github.com/patroza)
+```
+
+Trailers remain mandatory for credit; the optional body list is display-only.
 
 ## Discord-originated pull requests (REQUIRED)
 
 When Discord work produces commits (or is clearly intended to land):
 
-0. **Always open a PR — do not wait for perfect green.** Create the PR as soon as there is something to review or track. If full lint / typecheck / focused tests / `vp check` are not finished yet, open it as a **draft**. Convert to ready for review only after those gates. A missing PR while work sits only on a remote branch is incomplete handoff.
+0. **Always open a PR — do not wait for perfect green.** Create the PR as soon as there is something to review or track. If full lint / typecheck / focused tests / `vp check` are not finished yet, open it as a **draft**. **A draft is not done:** after local gates (preferably right after focused tests + `vp check` / package typecheck), you **must** convert it to ready for review (or merge path). Leaving a draft abandoned after the work is finished is incomplete handoff. A missing PR while work sits only on a remote branch is also incomplete.
 
 When opening or updating a PR from a Discord thread:
 
-1. **Discord footer (required in the PR description).** Append this exact footer form at the end of the PR body (use the **thread starter** when known, otherwise the current requester, and that thread’s real jump link):
+1. **Discord footer (required in the PR description).** Append this form at the end of the PR body (use the **thread starter** when known, otherwise the current requester). Prefer the **ready-to-paste footer** from Discord turn context when present.
 
 ```md
-opened by [<displayName>](discord_user_id) in chat thread **Discord** · [Thread Title](https://discord.com/channels/<guild_id>/<channel_or_thread_id>/<message_id>)
+opened by [<displayName>](https://discord.com/users/<discord_user_id>) in chat thread **Discord** · [Thread Title](https://discord.com/channels/<guild_id>/<channel_or_thread_id>/<message_id>)
 ```
 
-Prefer the thread starter’s Discord id/display name from turn context. Do not skip this because the bot _might_ patch the body later — still write it when you create the PR so the first revision is correct. The bot may also hard-append the footer when a PR URL is linked; that is a safety net, not a reason to omit it.
+Rules:
+
+- **User link** must be `https://discord.com/users/<snowflake>` (Discord profile). Never use a bare snowflake as the URL (it goes nowhere).
+- **Thread link** must be a full `https://discord.com/channels/<guild>/<channel_or_thread>/<message>` URL. Never emit truncated placeholders like `https://discord.com/channels` or empty channel segments.
+- Prefer the thread starter’s display name from turn context. Do not skip the footer because the bot _might_ patch the body later — still write it when you create the PR so the first revision is correct. The bot may also hard-append the footer when a PR URL is linked; that is a safety net, not a reason to omit it.
 
 2. If Discord turn context lists **Linked work items** / Jira issues for the thread, include those Jira issue links in the PR description (and prefer the primary key in the title/branch when one is clear).
 
-3. Prefer opening the PR only after commits already include the Identity map `Co-authored-by` trailers (see above).
+3. Prefer opening the PR only after commits already include the Identity map `Co-authored-by` trailers (see above). Optional PR-body co-author list: profile links only (`[@login](https://github.com/login)`), never bare `@login`.
 
 ## Task Completion Requirements
 
diff --git a/apps/discord-bot/src/features/MentionRouter.ts b/apps/discord-bot/src/features/MentionRouter.ts
index c4a53ee687e..f5c273908e5 100644
--- a/apps/discord-bot/src/features/MentionRouter.ts
+++ b/apps/discord-bot/src/features/MentionRouter.ts
@@ -820,6 +820,8 @@ const make = (botConfig: DiscordBotConfig) =>
             jiraIssueKeys: turnJiraIssueKeys,
             jiraBrowseBaseUrl: botConfig.jiraBrowseBaseUrl,
             identityPeople: identityMap.list(),
+            guildId: input.guildId,
+            discordThreadId: input.discordThreadId,
           });
           if (stagedFiles.skipped.length > 0) {
             yield* Effect.logWarning("Skipped some Discord file attachments", {
@@ -1127,6 +1129,8 @@ const make = (botConfig: DiscordBotConfig) =>
           jiraIssueKeys: firstTurnJiraIssueKeys,
           jiraBrowseBaseUrl: botConfig.jiraBrowseBaseUrl,
           identityPeople: identityMap.list(),
+          guildId: input.guildId,
+          discordThreadId: input.discordThreadId,
         });
 
         yield* Effect.logInfo("Creating T3 thread with worktree bootstrap", {
diff --git a/apps/discord-bot/src/identityMap.ts b/apps/discord-bot/src/identityMap.ts
index 957dbbadd0e..35e5fadc648 100644
--- a/apps/discord-bot/src/identityMap.ts
+++ b/apps/discord-bot/src/identityMap.ts
@@ -515,10 +515,10 @@ export function formatIdentityAttributionBlock(input: {
     "4. Verify with `git log -1 --format=%B` before push/PR. Commits missing these trailers are incomplete.",
   );
   lines.push(
-    "5. When opening a PR: include the Discord description footer from AGENTS.md (opened by … in chat thread **Discord**). The bot may hard-append the footer later — still write it on create. GitHub multi-author avatars come from **commit** trailers, not PR body prose alone.",
+    "5. When opening a PR: paste the **Discord PR description footer** from turn context when present (user link = `https://discord.com/users/<id>`, thread link = full `https://discord.com/channels/...`). Never use bare snowflakes or truncated channel URLs. The bot may hard-append the footer later — still write it on create. GitHub multi-author avatars come from **commit** trailers. Optional PR-body co-author list: profile links that look like mentions (`[@login](https://github.com/login)`), **never** bare `@login` (notifies).",
   );
   lines.push(
-    "6. **Always open a PR** for this work once there are commits (or the change is clearly intended to land). Prefer a **draft PR** until full lint / typecheck / focused tests / `vp check` are done; do not hold the PR closed waiting for perfect green.",
+    "6. **Always open a PR** for this work once there are commits (or the change is clearly intended to land). Prefer a **draft PR** until full lint / typecheck / focused tests / `vp check` are done; then **you must mark it ready** (draft is not done). Do not leave drafts abandoned and do not hold the PR closed waiting for perfect green.",
   );
 
   if (trailers.length > 0) {
diff --git a/apps/discord-bot/src/presentation/discordPrAttribution.test.ts b/apps/discord-bot/src/presentation/discordPrAttribution.test.ts
index 58ceef6f0e0..8f04e1bd9f0 100644
--- a/apps/discord-bot/src/presentation/discordPrAttribution.test.ts
+++ b/apps/discord-bot/src/presentation/discordPrAttribution.test.ts
@@ -13,7 +13,7 @@ import {
 } from "./discordPrAttribution.ts";
 
 describe("formatDiscordPrAttributionFooter", () => {
-  it("formats starter + thread title + jump link", () => {
+  it("formats starter profile URL + full thread jump link", () => {
     expect(
       formatDiscordPrAttributionFooter({
         starterDisplayName: "joshuadima",
@@ -23,7 +23,20 @@ describe("formatDiscordPrAttributionFooter", () => {
           "https://discord.com/channels/1083767712431480922/1531376362399465595/1531376362399465595",
       }),
     ).toBe(
-      "opened by [joshuadima](593167616273809448) in chat thread **Discord** · [Open Random PR Test](https://discord.com/channels/1083767712431480922/1531376362399465595/1531376362399465595)",
+      "opened by [joshuadima](https://discord.com/users/593167616273809448) in chat thread **Discord** · [Open Random PR Test](https://discord.com/channels/1083767712431480922/1531376362399465595/1531376362399465595)",
+    );
+  });
+
+  it("omits broken/truncated thread links", () => {
+    expect(
+      formatDiscordPrAttributionFooter({
+        starterDisplayName: "joshuadima",
+        starterUserId: "593167616273809448",
+        threadTitle: "Thread",
+        threadJumpUrl: "https://discord.com/channels",
+      }),
+    ).toBe(
+      "opened by [joshuadima](https://discord.com/users/593167616273809448) in chat thread **Discord**",
     );
   });
 
@@ -34,7 +47,7 @@ describe("formatDiscordPrAttributionFooter", () => {
       threadTitle: "Title [x]",
       threadJumpUrl: "https://discord.com/channels/1/2/3",
     });
-    expect(footer).toContain("[a\\[b\\]c](1)");
+    expect(footer).toContain("[a\\[b\\]c](https://discord.com/users/1)");
     expect(footer).toContain("[Title \\[x\\]](https://discord.com/channels/1/2/3)");
   });
 });
diff --git a/apps/discord-bot/src/presentation/discordPrAttribution.ts b/apps/discord-bot/src/presentation/discordPrAttribution.ts
index dcfbb1ef3a9..da95b82873d 100644
--- a/apps/discord-bot/src/presentation/discordPrAttribution.ts
+++ b/apps/discord-bot/src/presentation/discordPrAttribution.ts
@@ -54,17 +54,40 @@ export type DiscordThreadStarterLike = {
     | null;
 };
 
+/**
+ * Public Discord user profile URL (opens profile in app/browser when signed in).
+ * Prefer this over bare snowflake ids, which are not navigable links.
+ */
+export function buildDiscordUserProfileUrl(userId: string): string {
+  return `https://discord.com/users/${userId.trim()}`;
+}
+
+/** True when the URL is a full discord.com/channels/... jump (not a truncated placeholder). */
+export function isValidDiscordChannelJumpUrl(url: string): boolean {
+  const trimmed = url.trim();
+  if (trimmed.length === 0) return false;
+  // Require guild + channel segments; optional message id.
+  return /^https:\/\/(?:ptb\.|canary\.)?discord(?:app)?\.com\/channels\/[^/\s]+\/[^/\s]+(?:\/[^/\s]+)?$/u.test(
+    trimmed,
+  );
+}
+
 /**
  * Build the single-line attribution footer from thread starter + title.
+ * User link uses Discord profile URL; thread link must be a full channel jump URL.
  */
 export function formatDiscordPrAttributionFooter(input: DiscordPrAttributionInput): string {
   const displayName = input.starterDisplayName.trim() || "unknown";
   const userId = input.starterUserId.trim();
   const title = sanitizeMarkdownLinkLabel(input.threadTitle.trim() || "Discord thread");
+  const profileUrl = buildDiscordUserProfileUrl(userId);
   const jumpUrl = input.threadJumpUrl.trim();
 
-  // Keep display name linked to the raw Discord user id (matches AGENTS.md format).
-  return `opened by [${escapeMarkdownLinkLabel(displayName)}](${userId}) in chat thread **Discord** · [${escapeMarkdownLinkLabel(title)}](${jumpUrl})`;
+  const openedBy = `opened by [${escapeMarkdownLinkLabel(displayName)}](${profileUrl}) in chat thread **Discord**`;
+  if (!isValidDiscordChannelJumpUrl(jumpUrl)) {
+    return openedBy;
+  }
+  return `${openedBy} · [${escapeMarkdownLinkLabel(title)}](${jumpUrl})`;
 }
 
 export function buildDiscordThreadJumpUrl(input: {
@@ -73,11 +96,16 @@ export function buildDiscordThreadJumpUrl(input: {
   /** Prefer the starter message id; falls back to the thread id. */
   readonly messageId?: string | null | undefined;
 }): string {
+  const guildId = input.guildId.trim();
+  const discordThreadId = input.discordThreadId.trim();
+  if (guildId.length === 0 || discordThreadId.length === 0) {
+    return "";
+  }
   const messageId =
     input.messageId !== null && input.messageId !== undefined && input.messageId.trim() !== ""
       ? input.messageId.trim()
-      : input.discordThreadId;
-  return `https://discord.com/channels/${input.guildId}/${input.discordThreadId}/${messageId}`;
+      : discordThreadId;
+  return `https://discord.com/channels/${guildId}/${discordThreadId}/${messageId}`;
 }
 
 export function starterDisplayName(starter: DiscordThreadStarterLike | null | undefined): string {
diff --git a/apps/discord-bot/src/presentation/threadContext.test.ts b/apps/discord-bot/src/presentation/threadContext.test.ts
index 28c34c6a400..01d0d5e7569 100644
--- a/apps/discord-bot/src/presentation/threadContext.test.ts
+++ b/apps/discord-bot/src/presentation/threadContext.test.ts
@@ -150,6 +150,7 @@ describe("buildDiscordTurnPrompt", () => {
     expect(prompt).toContain("posted back into the same Discord thread");
     expect(prompt).toContain("Always open a GitHub PR");
     expect(prompt).toContain("draft PR");
+    expect(prompt).toContain("must mark it ready");
     expect(prompt).toContain('"you"');
     expect(prompt).toContain('"id": "user-1"');
     expect(prompt).toContain('"username": "example-user"');
@@ -285,6 +286,30 @@ describe("buildDiscordTurnPrompt", () => {
     expect(prompt).not.toContain("Co-authored-by");
   });
 
+  it("injects a ready-to-paste PR footer with profile + channel jump URLs", () => {
+    const prompt = buildDiscordTurnPrompt({
+      mentionPrompt: "make a pr",
+      requester: {
+        id: "m1",
+        author: { id: "593167616273809448", username: "joshuadima", displayName: "joshuadima" },
+      },
+      starter: {
+        id: "1531376362399465595",
+        author: { id: "593167616273809448", username: "joshuadima", displayName: "joshuadima" },
+      },
+      guildId: "1083767712431480922",
+      discordThreadId: "1531376362399465595",
+      discordThreadTitle: "Open Random PR Test",
+    });
+    expect(prompt).toContain("Discord PR description footer");
+    expect(prompt).toContain("https://discord.com/users/593167616273809448");
+    expect(prompt).toContain(
+      "https://discord.com/channels/1083767712431480922/1531376362399465595/1531376362399465595",
+    );
+    expect(prompt).not.toContain("](593167616273809448)");
+    expect(prompt).not.toMatch(/\]\(https:\/\/discord\.com\/channels\)/u);
+  });
+
   it("falls back to bare keys when browse base is unset", () => {
     const block = formatLinkedJiraWorkItemsBlock({
       jiraIssueKeys: ["proj-367"],
diff --git a/apps/discord-bot/src/presentation/threadContext.ts b/apps/discord-bot/src/presentation/threadContext.ts
index fa681a31af6..0459fedb6d0 100644
--- a/apps/discord-bot/src/presentation/threadContext.ts
+++ b/apps/discord-bot/src/presentation/threadContext.ts
@@ -9,6 +9,12 @@ import {
   type PersonIdentity,
   type ResolvedParticipantIdentity,
 } from "../identityMap.ts";
+import {
+  buildDiscordThreadJumpUrl,
+  formatDiscordPrAttributionFooter,
+  starterDisplayName,
+  starterUserId,
+} from "./discordPrAttribution.ts";
 import { jiraBrowseUrl, mergeJiraIssueKeys } from "./jiraLinks.ts";
 
 export interface DiscordEmbedLike {
@@ -70,6 +76,12 @@ export interface ThreadBootstrapContext {
    * guidance for the thread starter and current requester.
    */
   readonly identityPeople?: ReadonlyArray<PersonIdentity> | undefined;
+  /** Guild snowflake — required to build a real Discord thread jump URL for PR footers. */
+  readonly guildId?: string | null | undefined;
+  /** Discord thread (or channel) snowflake for the PR footer jump link. */
+  readonly discordThreadId?: string | null | undefined;
+  /** Discord thread title (channel name) for the PR footer label. */
+  readonly discordThreadTitle?: string | null | undefined;
 }
 
 const DISCORD_REPLY_STYLE = `### Reply style
@@ -83,7 +95,7 @@ const DISCORD_CONVERSATION_CONTEXT = `## Discord conversation context
 - Your final answer will be posted back into the same Discord thread and may be read by multiple participants.
 - When the requester says "you" or otherwise addresses the assistant, interpret that as referring to you in your role as the Discord bot unless they clearly identify someone else.
 - Treat the current requester as distinct from the thread starter and from other participants. Do not attribute another participant's statements or identity to them.
-- **Always open a GitHub PR** for Discord work that produces commits (or is clearly intended to land). Do not wait until "everything is perfect." Use a **draft PR** when full lint / typecheck / tests / \`vp check\` are not finished yet; mark ready only after those gates.`;
+- **Always open a GitHub PR** for Discord work that produces commits (or is clearly intended to land). Do not wait until "everything is perfect." Use a **draft PR** when full lint / typecheck / tests / \`vp check\` are not finished yet; **after those gates you must mark it ready** — a draft is not done. Do not leave drafts abandoned.`;
 
 function formatRequesterMetadata(message: DiscordMessageLike | undefined): string {
   return JSON.stringify(
@@ -181,6 +193,51 @@ export function resolveTurnIdentityParticipants(input: {
   return out;
 }
 
+/**
+ * Ready-to-paste Discord PR footer for agents (profile + full thread jump URLs).
+ * Returns null when starter user id is missing.
+ */
+export function formatDiscordPrFooterPromptBlock(input: {
+  readonly starter?: DiscordMessageLike | null | undefined;
+  readonly requester?: DiscordMessageLike | undefined;
+  readonly guildId?: string | null | undefined;
+  readonly discordThreadId?: string | null | undefined;
+  readonly discordThreadTitle?: string | null | undefined;
+}): string | null {
+  const attributionPerson = input.starter ?? input.requester;
+  const userId = starterUserId(attributionPerson ?? null);
+  if (userId === null) return null;
+
+  const guildId = input.guildId?.trim() ?? "";
+  const threadId = input.discordThreadId?.trim() ?? "";
+  const messageId =
+    attributionPerson?.id?.trim() ||
+    input.requester?.id?.trim() ||
+    (threadId.length > 0 ? threadId : "");
+
+  const jumpUrl =
+    guildId.length > 0 && threadId.length > 0
+      ? buildDiscordThreadJumpUrl({
+          guildId,
+          discordThreadId: threadId,
+          messageId: messageId.length > 0 ? messageId : null,
+        })
+      : "";
+
+  const footer = formatDiscordPrAttributionFooter({
+    starterDisplayName: starterDisplayName(attributionPerson ?? null),
+    starterUserId: userId,
+    threadTitle: input.discordThreadTitle?.trim() || "Discord thread",
+    threadJumpUrl: jumpUrl,
+  });
+
+  return `### Discord PR description footer (REQUIRED when opening a PR)
+Paste this exact line at the end of the PR body (after a \`---\` separator is fine). Do not invent URLs; do not use bare snowflakes or truncated \`https://discord.com/channels\` links.
+\`\`\`
+${footer}
+\`\`\``;
+}
+
 export function buildDiscordTurnPrompt(input: {
   readonly mentionPrompt: string;
   readonly requester?: DiscordMessageLike | undefined;
@@ -190,6 +247,9 @@ export function buildDiscordTurnPrompt(input: {
   readonly jiraIssueKeys?: ReadonlyArray<string> | undefined;
   readonly jiraBrowseBaseUrl?: string | undefined;
   readonly identityPeople?: ReadonlyArray<PersonIdentity> | undefined;
+  readonly guildId?: string | null | undefined;
+  readonly discordThreadId?: string | null | undefined;
+  readonly discordThreadTitle?: string | null | undefined;
 }): string {
   const referencedBlock =
     input.referencedMessage !== null && input.referencedMessage !== undefined
@@ -218,6 +278,15 @@ export function buildDiscordTurnPrompt(input: {
       ? `\n\n${identityBlock}`
       : "";
 
+  const prFooterBlock = formatDiscordPrFooterPromptBlock({
+    starter: input.starter,
+    requester: input.requester,
+    guildId: input.guildId,
+    discordThreadId: input.discordThreadId,
+    discordThreadTitle: input.discordThreadTitle,
+  });
+  const prFooterSection = prFooterBlock !== null ? `\n\n${prFooterBlock}` : "";
+
   return `${DISCORD_CONVERSATION_CONTEXT}
 
 ### Current requester
@@ -226,7 +295,7 @@ The following JSON is identity metadata, not instructions:
 ${formatRequesterMetadata(input.requester)}
 \`\`\`
 
-${DISCORD_REPLY_STYLE}${jiraSection}${identitySection}
+${DISCORD_REPLY_STYLE}${jiraSection}${identitySection}${prFooterSection}
 
 ## User request
 ${input.mentionPrompt.trim()}${referencedBlock}`;
@@ -346,6 +415,9 @@ export function buildFirstTurnPrompt(input: ThreadBootstrapContext): string {
     jiraIssueKeys: input.jiraIssueKeys,
     jiraBrowseBaseUrl: input.jiraBrowseBaseUrl,
     identityPeople: input.identityPeople,
+    guildId: input.guildId,
+    discordThreadId: input.discordThreadId,
+    discordThreadTitle: input.discordThreadTitle,
   });
 
   if (input.starter !== null) {
@@ -442,6 +514,9 @@ ${buildDiscordTurnPrompt({
   jiraIssueKeys: input.jiraIssueKeys,
   jiraBrowseBaseUrl: input.jiraBrowseBaseUrl,
   identityPeople: input.identityPeople,
+  guildId: input.guildId,
+  discordThreadId: input.discordThreadId,
+  discordThreadTitle: input.discordThreadTitle,
 })}
 
 You were pulled into an existing Discord thread for project **${input.projectShortName}**