chore: v2.8.47 — a Codex ChatGPT pool account reaches its pane even while an older login's daemon runs

Codex >= 0.164 hands a plain TUI (no -c override) to the CODEX_HOME's
shared app-server daemon, which outlives every TUI and keeps the login it
started with. A ChatGPT pool account written into a member's auth.json
therefore reached no pane while their daemon still ran on the previous
login (reproduced on 0.164.0: the daemon kept sending the old key, a
--no-daemon TUI sent the new one). Such a pane now runs `codex
--no-daemon`, only when that binary's --help lists the flag (probed once
per path/size/mtime), so an older Codex still starts.

CLAUDE.md

@@ -1,6 +1,6 @@
 # Claude Code Working Guide
 
-_Last synced: v2.8.44 (2026-10-30) — `discard` takes the Changes panel's ticked files and blocks (`hunks`), never every file._ A change that makes any statement in this file, `AGENTS.md`, or a README wrong — a moved path, a new or changed extension point, a retired rule — updates that file in the same change-set and bumps this marker. **Bump = replace the version/date and a ≤ 1-line summary; never append a changelog here** — details belong in the commit message and `docs/`, because this whole file is loaded into every session.
+_Last synced: v2.8.45 (2026-10-30) — Artifacts **Share again** retakes a skill's newest version; a same-named upload updates the row._ A change that makes any statement in this file, `AGENTS.md`, or a README wrong — a moved path, a new or changed extension point, a retired rule — updates that file in the same change-set and bumps this marker. **Bump = replace the version/date and a ≤ 1-line summary; never append a changelog here** — details belong in the commit message and `docs/`, because this whole file is loaded into every session.
 
 ## Project mission
 - Maintain a reliable local-first dashboard for Claude Code session monitoring.
@@ -60,7 +60,7 @@ A **workspace** — called a **lane** in the API, CLI, database and code, which
 - **The File Explorer (`server/lib/file-explorer.js`, `/api/lanes/:id/fs/*`) reuses the read path's guards and never replaces silently.** Every path is `lanePath` + the PARENT `resolveInLane`-confined with the last segment kept as a name (so a symlink is moved/deleted as a link, never followed); never in or under `.git`, never a secret, never the workspace folder itself. Writes run as the folder's account — a member's only through `write-as` (`move`/`copy` modes; `writeAsAsync` streams an upload to its stdin; a batch upload of many small files is ONE `extract` of a tar the server writes itself — folders and regular files only, names it checked, `tar -k`) — and a move/copy never crosses accounts (`sameOwner`, `EFOREIGN`). A taken name is settled by `conflict` (`fail` → 409 with `names`, `skip`, `keep`, `replace` = the old one to the trash first). Delete is a move into the account's trash (member: `~/.local/share/agenthub/trash/`, host: `<data dir>/trash/<user id>/`), restorable 7 days. `write-as` is root-installed: a change to it needs `agenthub server install-system` again (`EUPGRADE` until then). A user's HOME is browsed through the same module inside `inHome` (`/api/homes/:who/fs/*`, `server/lib/homes.js` picks the folder): every dot entry at the TOP of a home stays hidden and refused — through a symlink, a download, a zip or as a copy source too — and another user's home is an admin's READ-ONLY, audited view (`EREADONLY`) — except its TRASH, whose restore/purge an admin may run (`TRASH_W` in `server/routes/homes.js`, the owner's trash via `trashKey`, audited with the item id); keep that exception to the trash routes only. A home's Trash is its USER's one recycle bin (`listUserTrash`: home-account store + host store `<data dir>/trash/<user id>/`, items tagged `store`). Do not add a delete that skips the trash, an overwrite without `conflict`, or a request path that is not run through `locate`/`folder`.
 - **The whole-file editor and the Files tab's upload are the two non-git writes on the lane file surface, and both live outside `git-ops.js` on purpose.** `git-ops.js` only touches paths `git status` reports as changed; `lane-file-write.js` may save any existing text file, so it must reuse the READ path's guards (`lanePath`, `resolveInLane`, `isSecretOnDisk`) and never be weaker than them, and it saves only over the `baseSha` it was opened at — do not let it create files or touch a binary. `lane-file-transfer.js`'s upload (`POST /api/lanes/:id/git/upload`, issue #78) is the opposite and only that: it CREATES one file (any bytes, ≤ 25 MB) under the same guards, into an existing folder, refuses a taken name (`EEXISTS`, a symlink included) and anything into or named `.git` (a hook there runs on the dashboard's next git call), and writes as the folder's member through `write-as` under S3 — do not let it overwrite, make folders or take a path from anything but `dir` + one plain name. Its `GET …/git/download` twin streams any file through `openSafe` as a `sandbox`ed attachment. The tree, expand-all and quick-open read the disk (`walkFolder`) for a folder that is not a repo.
 - **Server tests never touch the user's tmux.** Run them through `npm run test:server` (`scripts/test-server.js`), never a bare `node --test server/__tests__/*.test.js` from inside a lane pane — the suites create and kill real `agenthub-lane-<id>` sessions.
-- **An artifact is shared as a SNAPSHOT and installed only into the viewer's own account.** `server/lib/artifacts.js` (`/api/artifacts`): a pinned file or a skill is copied once into `<data dir>/artifacts/<random>/` and every viewer reads only that copy (an owner's edit of a skill — in the Hub, or in the skill's source folder, which the server takes when the Hub is listed and an installer's differing copy is then offered **Update** — writes a NEW snapshot and drops the old one — never a write into the one being read; the newer of the two changes wins) — `raw` serves only a file the snapshot recorded, under a `sandbox` CSP + `nosniff`; a `page` is a `https://claude.ai/…` link only. A developer sees their own rows plus shared ones; only the owner or an admin changes one. Install writes a skill into BOTH `~/.claude/skills/` and the cross-tool `~/.agents/skills/` of every account the CALLER's sessions run as (`installAccounts`: their S3 member home, plus the host's for an admin, whose host-folder workspaces run as the host; S3: as them through `write-as`), never over an existing one without `replace` (the old one is moved to `~/.claude/agenthub-replaced-skills/`, never deleted), and runs a plugin's `claude plugin marketplace add`/`install --scope user` as the caller, never with `-y`; Uninstall (`POST /api/artifacts/:id/uninstall`) takes it out of the same accounts — a skill MOVED to `agenthub-replaced-skills/`, never deleted, a plugin `claude plugin uninstall --scope user --keep-data`; an admin's switch (Settings → AI tools, `ArtifactsHubSettings`) turns installs off. An uploaded or written skill is snapshotted under the same checks (paths relative, no `..`, no secret names, zip sizes read before inflating). `POST /api/artifacts/plugin/inspect` clones a user-named https link only to read `marketplace.json`, with every credential helper OFF — never send a login with it. Do not add a route that serves a live file of another user, installs into someone else's account, or takes a plugin command from the request.
+- **An artifact is shared as a SNAPSHOT and installed only into the viewer's own account.** `server/lib/artifacts.js` (`/api/artifacts`): a pinned file or a skill is copied once into `<data dir>/artifacts/<random>/` and every viewer reads only that copy (an owner's edit of a skill — in the Hub, or in the skill's source folder, which the server takes when the Hub is listed and an installer's differing copy is then offered **Update** — writes a NEW snapshot and drops the old one — never a write into the one being read; the newer of the two changes wins; **Share again** (`POST /api/artifacts/:id/reshare`) takes the owner's folder on the server — else a user-scope plugin's same-named skill — on a click, and an upload named like the uploader's own skill, or carrying `id`, replaces that row's snapshot instead of adding a twin) — `raw` serves only a file the snapshot recorded, under a `sandbox` CSP + `nosniff`; a `page` is a `https://claude.ai/…` link only. A developer sees their own rows plus shared ones; only the owner or an admin changes one. Install writes a skill into BOTH `~/.claude/skills/` and the cross-tool `~/.agents/skills/` of every account the CALLER's sessions run as (`installAccounts`: their S3 member home, plus the host's for an admin, whose host-folder workspaces run as the host; S3: as them through `write-as`), never over an existing one without `replace` (the old one is moved to `~/.claude/agenthub-replaced-skills/`, never deleted), and runs a plugin's `claude plugin marketplace add`/`install --scope user` as the caller, never with `-y`; Uninstall (`POST /api/artifacts/:id/uninstall`) takes it out of the same accounts — a skill MOVED to `agenthub-replaced-skills/`, never deleted, a plugin `claude plugin uninstall --scope user --keep-data`; an admin's switch (Settings → AI tools, `ArtifactsHubSettings`) turns installs off. An uploaded or written skill is snapshotted under the same checks (paths relative, no `..`, no secret names, zip sizes read before inflating). `POST /api/artifacts/plugin/inspect` clones a user-named https link only to read `marketplace.json`, with every credential helper OFF — never send a login with it. Do not add a route that serves a live file of another user, installs into someone else's account, or takes a plugin command from the request.
 - **A workspace's instructions, extra folders and context files are lane facts, and a pane reads them only from the lane's rows.** The one addition is the workspace OWNER's own agent instructions (`user_prefs.instructions`, `PUT /api/me/instructions`, Settings → AI tools), which `launchExtras` puts first — keyed by `lanes.owner_id` (`local` in local mode), never by whoever clicked Start. `lanes.instructions` and `lane_sources` (`server/lib/lane-sources.js`) reach a pane through `launchExtras(laneId, tool)`, which `spawnRun` calls ITSELF — so neither spawn path can take them from a request — and every write is same-origin (`server/routes/lane-sources.js`). A folder must be absolute, exist, be a directory, not be or contain the OS home (`validateHomeDir`) and not be the workspace's own folder; it is the user's, and AgentHub never deletes it. An uploaded file is stored under `<data dir>/workspace-context/<lane id>/` under a name AgentHub derives (never a path from the request), and those copies are the only thing here AgentHub deletes (`ownsFile`): with their row, and with the workspace in `deleteLane`. Claude's `--add-dir` is VARIADIC, so it goes first in the argv where `--permission-mode` ends it, and the text (instructions + context file list + extra folders) is written at every spawn as the ONLY file `CLAUDE.md` of `<data dir>/workspace-prompts/<lane id>/` (a member's: `prompt-<lane id>/` in their handoff dir, via `write-as`), which goes in as one more `--add-dir` with `CLAUDE_CODE_ADDITIONAL_DIRECTORIES_CLAUDE_MD=1` in the pane env — never `--append-system-prompt-file`: a custom system prompt is a launch flag Claude cannot carry over a restart, so it refused `/tui` in every pane with instructions (side effect: a CLAUDE.md in an extra folder is now read too); Codex gets one `--add-dir` per directory and `-c developer_instructions=<JSON string>` — the text itself up to 6 KB, else a line pointing at that file. Only `claude`/`codex` take them. Never write them into the user's repo (CLAUDE.md/AGENTS.md).
 - **A workspace's sessions are the ones it OWNS, never the ones that ran in its folder.** `sessions.lane_id` is stamped by `bindRunSession` (`server/routes/hooks.js`) for the session a dashboard pane holds — first writer wins, a nested `claude -p` excluded — and no route sets it. A Codex/Antigravity session (their hooks are opt-in, so a pane may never learn its session) is also stamped by `claimToolSessions` (`server/lib/dashboard-runs.js`, called by both pollers and once at start): the lane of the newest same-tool dashboard run in the session's folder that was live when the session started, never a Claude session. A new Claude pane is started with `--session-id <uuid>` (`spawnRun`), so its `dashboard_runs.session_id` is known before any hook and a hook that carries no `run_id` (a hook handler older than `AGENTHUB_RUN_ID` forwarding) is still stamped from that run (`laneForSession`). Every workspace session list reads `GET /api/sessions?lane=<id>` — which also counts a still-unstamped session one of the lane's `dashboard_runs` holds, because hooks reach only the lowest-port dashboard on a shared DB and that one may be an older build that never stamps — and shows nothing else (no "other sessions in this folder"). Do not go back to listing a workspace by `cwd`, and do not guess ownership for old history. Billing has one more owner: a session NO workspace owns belongs to the user of the Linux account it ran as (`sessions.account` — the hook's peer, else its folder; `server/lib/session-account.js`, the host's account → the admin marked `users.host_account`, else the only admin), so a script's `claude -p` counts in Today, the Users page and spend quotas — a workspace's ownership always wins over it.
 - **A session's worktree is `claude --worktree`'s, resolved from the session row — and removing it never forces.** A Worktree start passes `--worktree=<server-made name>` (the `=` form: `-w [name]` eats the prompt otherwise) and Claude Code makes, populates and cleans up `<repo>/.claude/worktrees/<name>`; AgentHub only excludes `/.claude/worktrees/` at the repo root. A git route, a resume or a removal may work in a session's worktree only through `sessionWorktree` (`server/lib/session-worktree.js`: the session owned by the lane, its cwd not the lane's folder, registered by `git worktree list`) — `?session=` on the git routes answers `ENOWORKTREE` rather than falling back to the main folder. `POST /api/lanes/:id/session-worktree/remove` (same-origin, `confirm: true`, refused while a live pane holds the session) is the ONE dashboard path that deletes a worktree: `git worktree remove` with no `--force`, `git branch -d` never `-D`, a live-pid lock refused. Do not add a force, and do not let it touch a lane's own folder.

client/src/i18n/locales/en/artifacts.json

@@ -28,6 +28,12 @@
   "unshare": "Unshare",
   "shareDone": "Shared to the Hub",
   "unshareDone": "Removed from the Hub",
+  "reshare": "Share again",
+  "reshareDone": "New version shared — people who installed it are offered Update",
+  "reshareSame": "Already the newest version — shared",
+  "reshareAskTitle": "Choose the {{name}} folder again",
+  "reshareAskBody": "This server has no copy of {{name}}. Choose the skill's folder (the one holding SKILL.md): it replaces this version, and people who installed it are offered Update. For a .zip, upload it through Add skill → Upload: a skill with the same name updates your existing one.",
+  "resharePick": "Choose folder",
   "open": "Open",
   "copyLink": "Copy link",
   "preview": "Preview",
@@ -136,6 +142,11 @@
   "installsYou": "You",
   "installsUnknown": "A removed user",
   "installsReplaced": "replaced an older copy",
+  "versionAt": "Updated {{ago}}",
+  "versionAtFull": "Last updated {{date}}",
+  "installState.latest": "Latest",
+  "installState.outdated": "Old version",
+  "installState.removed": "Removed",
   "installsPluginWhere": "claude plugin install --scope user",
   "installsUnrecorded": "{{count}} earlier installs were counted before details were kept",
   "installsNoneOfYours": "You have not installed it — only your own installs are listed.",
@@ -179,7 +190,7 @@
   "stat.installs": "Installs",
   "stat.files": "Files",
   "stat.size": "Size",
-  "stat.updated": "Updated",
+  "stat.updated": "Last updated",
   "detail.runAs": "Run it as",
   "detail.market": "Marketplace",
   "detail.added": "Added {{date}}",

client/src/i18n/locales/vi/artifacts.json

@@ -28,6 +28,12 @@
   "unshare": "Bỏ chia sẻ",
   "shareDone": "Đã chia sẻ lên Hub",
   "unshareDone": "Đã gỡ khỏi Hub",
+  "reshare": "Share lại",
+  "reshareDone": "Đã share bản mới — người đã cài sẽ thấy nút Cập nhật",
+  "reshareSame": "Đã là bản mới nhất — đã share",
+  "reshareAskTitle": "Chọn lại thư mục {{name}}",
+  "reshareAskBody": "Server không có bản của {{name}}. Chọn thư mục của skill (thư mục chứa SKILL.md): bản này sẽ được thay, và người đã cài sẽ thấy nút Cập nhật. Với file .zip, tải lên qua Thêm skill → Tải lên: skill trùng tên sẽ cập nhật mục bạn đã có.",
+  "resharePick": "Chọn thư mục",
   "open": "Mở",
   "copyLink": "Sao chép link",
   "preview": "Xem",
@@ -137,6 +143,11 @@
   "installsYou": "Bạn",
   "installsUnknown": "Người dùng đã xoá",
   "installsReplaced": "thay bản cũ",
+  "versionAt": "Cập nhật {{ago}}",
+  "versionAtFull": "Cập nhật lần cuối {{date}}",
+  "installState.latest": "Bản mới nhất",
+  "installState.outdated": "Bản cũ",
+  "installState.removed": "Đã gỡ",
   "installsPluginWhere": "claude plugin install --scope user",
   "installsUnrecorded": "{{count}} lượt cài trước đây chỉ được đếm, không lưu chi tiết",
   "installsNoneOfYours": "Bạn chưa cài — chỉ hiện các lượt cài của bạn.",
@@ -180,7 +191,7 @@
   "stat.installs": "Lượt cài",
   "stat.files": "File",
   "stat.size": "Dung lượng",
-  "stat.updated": "Cập nhật",
+  "stat.updated": "Cập nhật lần cuối",
   "detail.runAs": "Gọi bằng",
   "detail.market": "Marketplace",
   "detail.added": "Thêm lúc {{date}}",

client/src/lib/api.ts

@@ -3324,16 +3324,17 @@ export const api = {
      *  several skills at once (one artifact each). `path` keeps a folder's layout. */
     uploadSkills: (
       files: { file: File; path: string }[],
-      fields: { name?: string; title?: string; description?: string } = {}
+      /** `id`: Share again — the upload replaces that skill row's version. */
+      fields: { name?: string; title?: string; description?: string; id?: string } = {}
     ) => {
       const form = new FormData();
       for (const f of files) form.append("files", f.file, f.file.name);
       form.append("paths", JSON.stringify(files.map((f) => f.path)));
       for (const [k, v] of Object.entries(fields)) if (v) form.append(k, v);
-      return request<{ items: Artifact[] }>("/artifacts/skill/upload", {
-        method: "POST",
-        body: form,
-      });
+      return request<{ items: (Artifact & { replaced?: boolean; changed?: boolean })[] }>(
+        "/artifacts/skill/upload",
+        { method: "POST", body: form }
+      );
     },
     /** One file from the user's computer, kept like a pinned one (≤ 25 MB). */
     uploadFile: (file: File, fields: { title?: string; description?: string } = {}) => {
@@ -3372,6 +3373,12 @@ export const api = {
         method: "PATCH",
         body: JSON.stringify(body),
       }),
+    /** POST /api/artifacts/:id/reshare — Share again: the owner's skill folder on
+     *  the server becomes the new version (409 ENOSOURCE when it has none). */
+    reshare: (id: number) =>
+      request<{ item: Artifact; changed: boolean }>(`/artifacts/${id}/reshare`, {
+        method: "POST",
+      }),
     /** `kept`: a shared one left your library but stays in the Hub. */
     remove: (id: number) =>
       request<{ ok: true; kept: boolean }>(`/artifacts/${id}`, { method: "DELETE" }),
@@ -4713,11 +4720,21 @@ export interface Artifact {
   suggestedForMe?: boolean;
   createdAt: string;
   updatedAt: string;
+  /** When its content last changed (a new snapshot); a page or plugin: when it was added. */
+  versionAt: string;
 }
 
 /** GET /api/artifacts/:id/installs. `paths` only for your own installs (or an admin). */
 export interface ArtifactInstalls {
-  items: { user: string | null; mine: boolean; at: string; replaced: boolean; paths?: string[] }[];
+  items: {
+    user: string | null;
+    mine: boolean;
+    at: string;
+    replaced: boolean;
+    /** Skills: where that install's copy stands against the newest version now. */
+    state?: "latest" | "outdated" | "removed" | "unknown";
+    paths?: string[];
+  }[];
   /** Installs counted before the list was kept. */
   unrecorded: number;
 }

client/src/pages/Artifacts.tsx

@@ -28,9 +28,14 @@
  * **Installed** instead of the Install button; **Uninstall** (a skill's
  * copies moved aside, a plugin `claude plugin uninstall`) is offered only in
  * the card's ⋯ menu. A skill follows its owner's folder (the server takes a
- * change there as a new snapshot when the Hub is listed); an installed copy
+ * change there as a new snapshot when the Hub is listed; **Share again**
+ * takes its folder on the server — or a plugin's copy — on a click, else
+ * asks for the folder and uploads it onto the same row); an installed copy
  * that differs from the newest version shows **Update** (a pack: "Update N"),
- * which replaces it after a confirmation, the old copy moved aside. Editing a skill
+ * which replaces it after a confirmation, the old copy moved aside. A skill or
+ * file row says when its CONTENT last changed ("Updated 3h ago", `versionAt`),
+ * and the install count's list marks each installer's copy Latest / Old
+ * version / Removed. Editing a skill
  * edits its SKILL.md (name, description, instructions — a new snapshot);
  * its preview opens with what it installs as and when Claude uses it. Deleting a shared
  * row of your own only takes it out of your library — it stays in the Hub
@@ -79,6 +84,7 @@ import { toast } from "../lib/toast";
 import { confirmDialog } from "../lib/confirm";
 import { useDialog } from "../hooks/useDialog";
 import { copyText } from "../lib/clipboard";
+import { timeAgo } from "../lib/format";
 import { ContextMenu, MenuItem, MenuSeparator, useContextMenu } from "../components/ContextMenu";
 import {
   FileUploadPanel,
@@ -277,6 +283,53 @@ export function Artifacts() {
     }
   };
 
+  // Share again: the server's copy of the skill, else the folder picked again
+  // (uploaded onto the same row). Either way installers are offered Update.
+  const reshareInput = useRef<HTMLInputElement>(null);
+  const reshareRow = useRef<Artifact | null>(null);
+  useEffect(() => {
+    reshareInput.current?.setAttribute("webkitdirectory", "");
+  }, []);
+  const reshared = (changed: boolean) => {
+    toast.success(t(changed ? "reshareDone" : "reshareSame"));
+    load();
+  };
+  const reshare = async (a: Artifact) => {
+    try {
+      const r = await api.artifacts.reshare(a.id);
+      reshared(r.changed);
+    } catch (err) {
+      if ((err as { code?: string }).code !== "ENOSOURCE") return toast.error(err);
+      if (
+        !(await confirmDialog({
+          title: t("reshareAskTitle", { name: a.source ?? a.title }),
+          message: t("reshareAskBody", { name: a.source ?? a.title }),
+          confirmLabel: t("resharePick"),
+        }))
+      )
+        return;
+      reshareRow.current = a;
+      reshareInput.current?.click();
+    }
+  };
+  const reshareUpload = async (list: FileList | null) => {
+    const a = reshareRow.current;
+    reshareRow.current = null;
+    if (!a || !list?.length) return;
+    try {
+      const r = await api.artifacts.uploadSkills(
+        Array.from(list).map((file) => ({
+          file,
+          path: (file as File & { webkitRelativePath?: string }).webkitRelativePath || file.name,
+        })),
+        { id: String(a.id) }
+      );
+      reshared(r.items.some((i) => i.changed !== false));
+    } catch (err) {
+      toast.error(err);
+    }
+  };
+
   const [renaming, setRenaming] = useState<Artifact | null>(null);
 
   const remove = async (a: Artifact) => {
@@ -442,6 +495,7 @@ export function Artifacts() {
   const actionsFor = (a: Artifact): CardActions => ({
     onOpen: () => setDetailId(a.id),
     onShare: () => void share(a),
+    onReshare: () => void reshare(a),
     onRename: () => {
       setDetailId(null);
       setRenaming(a);
@@ -572,6 +626,17 @@ export function Artifacts() {
 
   return (
     <div className="animate-fade-in space-y-5" data-testid="artifacts-page">
+      <input
+        ref={reshareInput}
+        type="file"
+        multiple
+        hidden
+        data-testid="artifact-reshare-folder"
+        onChange={(e) => {
+          void reshareUpload(e.target.files);
+          e.target.value = "";
+        }}
+      />
       <div className="flex items-start justify-between gap-3">
         <div className="min-w-0">
           <h1 className="text-lg font-semibold text-fg-primary">{t("title")}</h1>
@@ -1066,6 +1131,8 @@ function EmptyState({
 type CardActions = {
   onOpen: () => void;
   onShare: () => void;
+  /** A skill of your own: its newest version, shared (installers get Update). */
+  onReshare: () => void;
   onRename: () => void;
   onDelete: () => void;
   onInstall: () => void;
@@ -1208,6 +1275,7 @@ function Meta({
   server: boolean;
   date?: boolean;
 }) {
+  const { t } = useTranslation("artifacts");
   const parts: React.ReactNode[] = [];
   if (server && a.owner && !a.mine)
     parts.push(
@@ -1215,7 +1283,18 @@ function Meta({
         {a.owner}
       </span>
     );
-  if (date)
+  // A skill or file is a snapshot that changes: when it last did. Anything else: when added.
+  if (a.kind === "skill" || a.kind === "file")
+    parts.push(
+      <span
+        key="at"
+        className="shrink-0"
+        title={t("versionAtFull", { date: new Date(a.versionAt).toLocaleString() })}
+      >
+        {t("versionAt", { ago: timeAgo(a.versionAt) })}
+      </span>
+    );
+  else if (date)
     parts.push(
       <span key="at" className="shrink-0" title={new Date(a.createdAt).toLocaleString()}>
         {fmtDate(a.createdAt)}
@@ -1237,6 +1316,7 @@ function ArtifactMenu({
   menu,
   onOpen,
   onShare,
+  onReshare,
   onRename,
   onDelete,
   onInstall,
@@ -1297,6 +1377,9 @@ function ArtifactMenu({
               {t(hubOnly ? "hubRemove" : a.shared ? "unshare" : "share")}
             </MenuItem>
           )}
+          {server && a.kind === "skill" && (
+            <MenuItem onSelect={pick(onReshare)}>{t("reshare")}</MenuItem>
+          )}
           <MenuItem onSelect={pick(onRename)}>{t("rename")}</MenuItem>
           {!hubOnly && (
             <MenuItem danger onSelect={pick(onDelete)}>
@@ -1447,6 +1530,7 @@ function DetailDialog({
   canInstall,
   onClose,
   onShare,
+  onReshare,
   onRename,
   onDelete,
   onInstall,
@@ -1468,7 +1552,10 @@ function DetailDialog({
       : []),
     ...(a.files.length ? [{ label: t("stat.files"), value: String(a.files.length) }] : []),
     ...(a.size ? [{ label: t("stat.size"), value: fmtBytes(a.size) }] : []),
-    { label: t("stat.updated"), value: fmtDate(a.updatedAt) },
+    {
+      label: t("stat.updated"),
+      value: new Date(a.versionAt).toLocaleString(),
+    },
   ];
   return (
     <Modal title={a.title} onClose={onClose} size="md">
@@ -1611,6 +1698,11 @@ function DetailDialog({
                 {t(hubOnly ? "hubRemove" : a.shared ? "unshare" : "share")}
               </button>
             )}
+            {server && a.kind === "skill" && (
+              <button type="button" className={secondary} onClick={onReshare}>
+                {t("reshare")}
+              </button>
+            )}
             <button type="button" className={secondary} onClick={onRename}>
               {t("rename")}
             </button>
@@ -1634,6 +1726,13 @@ function DetailDialog({
  *  The list floats over the page (a portal at the button, below it or above
  *  when there is no room, kept inside the window): inside the card list's
  *  `overflow-hidden` it was cut off at the last card. */
+/** An installer's copy against the newest version: green, amber, grey. */
+const STATE_CLASS = {
+  latest: "bg-status-success/15 text-status-success",
+  outdated: "bg-status-warning/15 text-status-warning",
+  removed: "bg-surface-2 text-fg-muted",
+} as const;
+
 function InstallsButton({ item }: { item: Artifact }) {
   const { t } = useTranslation("artifacts");
   const [open, setOpen] = useState(false);
@@ -1725,6 +1824,14 @@ function InstallsButton({ item }: { item: Artifact }) {
                           <span className="ml-1 text-fg-muted">· {t("installsReplaced")}</span>
                         )}
                       </span>
+                      {i.state && i.state !== "unknown" && (
+                        <span
+                          data-testid="install-state"
+                          className={`shrink-0 rounded px-1 text-[10px] ${STATE_CLASS[i.state]}`}
+                        >
+                          {t(`installState.${i.state}`)}
+                        </span>
+                      )}
                       <span className="shrink-0 text-[11px] text-fg-muted">
                         {new Date(i.at).toLocaleString()}
                       </span>

client/src/pages/__tests__/Artifacts.test.tsx

@@ -46,6 +46,7 @@ vi.mock("../../lib/api", () => ({
       addPlugin: vi.fn(),
       inspectMarket: vi.fn(),
       uploadSkills: vi.fn(),
+      reshare: vi.fn(),
       writeSkill: vi.fn(),
       uploadFile: vi.fn(),
       candidates: vi.fn(),
@@ -76,6 +77,7 @@ const item = (over: Partial<Artifact>): Artifact => ({
   installs: 0,
   createdAt: "2026-10-14T00:00:00Z",
   updatedAt: "2026-10-14T00:00:00Z",
+  versionAt: "2026-10-14T00:00:00Z",
   ...over,
 });
 
@@ -348,9 +350,16 @@ describe("Artifacts", () => {
           mine: true,
           at: "2026-10-19T10:00:00Z",
           replaced: false,
+          state: "latest",
           paths: ["/h/.claude/skills/deploy"],
         },
-        { user: "khoa", mine: false, at: "2026-10-18T10:00:00Z", replaced: true },
+        {
+          user: "khoa",
+          mine: false,
+          at: "2026-10-18T10:00:00Z",
+          replaced: true,
+          state: "outdated",
+        },
       ],
       unrecorded: 1,
     });
@@ -362,6 +371,12 @@ describe("Artifacts", () => {
     expect(await within(box).findByText("/h/.claude/skills/deploy")).toBeInTheDocument();
     expect(within(box).getByText(/khoa/)).toBeInTheDocument();
     expect(within(box).getByText(/1 earlier installs/)).toBeInTheDocument();
+    // Each install says whether its copy is the newest version.
+    expect(
+      within(box)
+        .getAllByTestId("install-state")
+        .map((b) => b.textContent)
+    ).toEqual(["Latest", "Old version"]);
     // Over the page, outside the card list that clips its overflow — and a
     // click inside it keeps it open.
     expect(box.parentElement).toBe(document.body);
@@ -394,6 +409,65 @@ describe("Artifacts", () => {
     expect(calls[calls.length - 1]?.[0].title).toMatch(/Remove “hub-only” from the Hub/);
   });
 
+  it("Share again takes the server's copy, else uploads the picked folder onto that skill", async () => {
+    vi.mocked(api.artifacts.uploadSkills).mockClear();
+    vi.mocked(api.artifacts.settings).mockResolvedValue({
+      serverMode: true,
+      canShare: true,
+      installsEnabled: true,
+      canManage: true,
+    });
+    vi.mocked(api.artifacts.list).mockResolvedValue({
+      items: [item({ id: 2, kind: "skill", title: "sg-flow", source: "sg-flow", shared: true })],
+    });
+    vi.mocked(api.artifacts.reshare).mockResolvedValueOnce({
+      item: item({ id: 2 }),
+      changed: true,
+    });
+    const user = userEvent.setup();
+    open();
+    const card = await screen.findByTestId("artifact-2");
+    await menuAction(user, "Share again", card);
+    await waitFor(() => expect(api.artifacts.reshare).toHaveBeenCalledWith(2));
+    expect(api.artifacts.uploadSkills).not.toHaveBeenCalled();
+
+    // No copy on the server: the folder is asked for and lands on THIS row.
+    vi.mocked(api.artifacts.reshare).mockRejectedValueOnce(
+      Object.assign(new Error("no copy"), { code: "ENOSOURCE" })
+    );
+    vi.mocked(confirmDialog).mockResolvedValueOnce(true);
+    vi.mocked(api.artifacts.uploadSkills).mockResolvedValueOnce({
+      items: [{ ...item({ id: 2 }), changed: true }],
+    });
+    await menuAction(user, "Share again", card);
+    await waitFor(() => expect(confirmDialog).toHaveBeenCalled());
+    const md = new File(["---\nname: sg-flow\n---\n"], "SKILL.md");
+    await user.upload(screen.getByTestId("artifact-reshare-folder"), md);
+    await waitFor(() =>
+      expect(api.artifacts.uploadSkills).toHaveBeenCalledWith([{ file: md, path: "SKILL.md" }], {
+        id: "2",
+      })
+    );
+  });
+
+  it("says when a skill's content last changed, not when it was renamed", async () => {
+    vi.mocked(api.artifacts.list).mockResolvedValue({
+      items: [
+        item({
+          id: 2,
+          kind: "skill",
+          title: "deploy",
+          source: "deploy",
+          updatedAt: new Date().toISOString(),
+          versionAt: new Date(Date.now() - 3 * 3600_000).toISOString(),
+        }),
+      ],
+    });
+    open();
+    const card = await screen.findByTestId("artifact-2");
+    expect(within(card).getByText("Updated 3h ago")).toBeInTheDocument();
+  });
+
   it("offers Update for an installed skill its owner changed, after a confirmation", async () => {
     vi.mocked(api.artifacts.list).mockResolvedValue({
       items: [

client/src/pages/__tests__/__snapshots__/screens.snapshot.test.tsx.snap

@@ -7316,7 +7316,7 @@ exports[`screen snapshots > Settings — about 1`] = `
                 <span
                   class="text-status-warning/90"
                 >
-                  UI build v2.8.44 (rebuild client to match)
+                  UI build v2.8.47 (rebuild client to match)
                 </span>
               </p>
             </div>

docs/API.md

@@ -3147,7 +3147,7 @@ A snapshot freezes a session as it is at that moment into one immutable `session
 ### Artifacts hub
 
 ```http
-GET    /api/artifacts?scope=all|mine|hub|unowned&kind=page|file|skill|plugin&q=   {items} — each with `installed` and `updateAvailable` (default scope `all`)
+GET    /api/artifacts?scope=all|mine|hub|unowned&kind=page|file|skill|plugin&q=   {items} — each with `installed`, `updateAvailable` and `versionAt` (when its content last changed — a new snapshot; a rename or share toggle moves only `updatedAt`) (default scope `all`)
 GET    /api/artifacts/settings                 {serverMode, canShare, installsEnabled, canManage}
 PUT    /api/artifacts/settings                 {installsEnabled: boolean} — admin (any caller in local mode); the UI is Settings → AI tools → Artifacts Hub
 GET    /api/artifacts/candidates?laneId=       {items: [{path, sessionId, at, exists, pinned}]}
@@ -3156,7 +3156,7 @@ POST   /api/artifacts/page                     {url, title?, description?}
 POST   /api/artifacts/file                     {laneId, path, title?, sessionId?}
 POST   /api/artifacts/file/upload              multipart: files (one), title?, description? → {item}
 POST   /api/artifacts/skill                    {name, laneId?, title?, description?}
-POST   /api/artifacts/skill/upload             multipart: files, paths (JSON, each file's relative path), name?, title?, description? → {items}
+POST   /api/artifacts/skill/upload             multipart: files, paths (JSON, each file's relative path), name?, title?, description?, id? → {items} — a skill named like one the caller already has becomes its new version (`replaced`, `changed`); `id` = Share again onto that row
 POST   /api/artifacts/skill/new                {name, description, content, title?} → {item, items}
 POST   /api/artifacts/plugin/inspect           {market} → {market, name, description, plugins: [{name, key, description, version, category}]}
 POST   /api/artifacts/plugin                   {key: "name@marketplace", market: "owner/repo" | git URL | marketplace.json URL, title?, description?}
@@ -3166,7 +3166,8 @@ DELETE /api/artifacts/:id                      {ok, kept} — kept: a shared row
 GET    /api/artifacts/:id/raw?path=&download=1 one snapshot file (sandbox CSP, nosniff)
 POST   /api/artifacts/:id/install              {replace?, update?} → {installed, replaced?}
 POST   /api/artifacts/:id/uninstall            → {uninstalled, paths}
-GET    /api/artifacts/:id/installs             {items: [{user, mine, at, replaced, paths?}], unrecorded}
+POST   /api/artifacts/:id/reshare              → {item, changed} — Share again (skill, owner): the owner's folder on this server becomes the new version and the row is shared; 409 ENOSOURCE when the server has no copy
+GET    /api/artifacts/:id/installs             {items: [{user, mine, at, replaced, state?, paths?}], unrecorded} — state (skills): latest | outdated | removed | unknown, that install's Claude skill copies against the newest version now
 POST   /api/artifacts/:id/claim                → {item} — the suggested user, or an admin
 POST   /api/artifacts/:id/decline              → {id, declined} — the suggested user
 POST   /api/artifacts/:id/assign               {userId} → {item} — admin
@@ -3175,8 +3176,9 @@ POST   /api/artifacts/:id/assign               {userId} → {item} — admin
 What agents produced, per OWNER (`server/lib/artifacts.js`, plan: `docs/plans/artifacts/README.md`):
 
 - **page** — a claude.ai link (`https://claude.ai/…` only, `400 EBADURL`), one row per owner and link. A session's `Artifact` tool publish — or a Claude Docs `batch` that creates a doc (`container.create`; its title is the doc's name, later batches are skipped) — is captured from its PostToolUse hook (a doc's own `frame.artifactUrl`; for a publish the first `https://claude.ai/…artifact/…` in `tool_response`), owned by the session's workspace owner — or, for a session no workspace owns (a member's `claude` started from their own terminal under S3), by the member whose account sent the hook (by its connection's uid, never the body); the host account names nobody, so such a page from the host stays unowned, with `suggested_owner_id` set to the owner of the workspace whose folder holds the session's `cwd` (else, under S3, the member whose home it is).
-- **file** — `candidates` are the documents (html, md, pdf, images, csv, office…) the workspace's sessions wrote with Write/Edit/MultiEdit/NotebookEdit, inside its folder. **Captured at Stop:** when a session a workspace owns sends `Stop` or `SessionEnd`, each `.pptx`/`.docx`/`.xlsx`/`.pdf`/`.html` in the workspace it created or changed since it started (a repo's untracked or modified files — an HTML file only when untracked — or a plain folder's files; at most 20 per stop, ≤ 25 MB) is snapshotted into the workspace owner's library as `auto: true` (shown **Auto**), off the hook's response path. The same file at the mtime its snapshot recorded is skipped; a changed one replaces that row's snapshot; a file pinned by hand is left alone. A pin is read under the download route's guards (`lanePath`, `resolveInLane`, `ESECRET`, ≤ 25 MB, `413 ETOOBIG`) and SNAPSHOTTED to `<data dir>/artifacts/<random>/`.
+- **file** — `candidates` are the documents (html, md, pdf, images, csv, office…) the workspace's sessions wrote with Write/Edit/MultiEdit/NotebookEdit, inside its folder. **Captured at Stop:** when a session a workspace owns sends `Stop` or `SessionEnd`, each `.pptx`/`.docx`/`.xlsx`/`.pdf`/`.html` in the workspace it created or changed since it started (a repo's untracked or modified files — an HTML file only when untracked and not a web app's own page: never an `index.html`, one under `www`/`public`/`dist`/`build`/`src`/`static`/`templates`/`assets`/`site`/`_site`, or one beside `.js`/`.css`-type files in a folder other than the workspace root — or a plain folder's files; at most 20 per stop, ≤ 25 MB) is snapshotted into the workspace owner's library as `auto: true` (shown **Auto**), off the hook's response path. The same file at the mtime its snapshot recorded is skipped; a changed one replaces that row's snapshot; a file pinned by hand is left alone. A pin is read under the download route's guards (`lanePath`, `resolveInLane`, `ESECRET`, ≤ 25 MB, `413 ETOOBIG`) and SNAPSHOTTED to `<data dir>/artifacts/<random>/`.
 - **skill** — the caller's own `~/.claude/skills/<name>` (their member home under S3; the host's for an admin or in local mode, else `409 ENOACCOUNT`) or a workspace's `.claude/skills/<name>`. Snapshotted whole: ≤ 300 files, ≤ 5 MB, a symlink anywhere is `ESYMLINK`, a secret-looking file name (`.env`, `*.pem`, `id_rsa`, `.netrc`…, or a data file named `*token*`/`*secret*`/`*password*`/`*credential*` — the word alone does not count in Markdown, source code or images, e.g. `design-tokens.md`) `403 ESECRET`.
+- **Share again** (a skill's ⋯ menu and detail sheet, its owner, server mode) — `reshare` takes the owner's skill folder on THIS server as the new snapshot: the row's source folder, else the same-named `skills/<name>` of a plugin the owner installed at user scope (`installed_plugins.json`, the most recently updated one, never outside their `~/.claude/plugins/`), and shares the row; installers are then offered **Update**. With no copy on the server (a skill uploaded from a browser) it answers `409 ENOSOURCE` and the page asks for the skill's folder, uploaded with `id` onto that row. An upload whose skill is named like one the uploader already has (not a workspace's) also replaces that row's version rather than adding a twin.
 - **file upload** — one file from the user's computer (≤ 25 MB, `413 ETOOBIG`), snapshotted under its own base name (no folder kept).
 - **skill upload / new** — a skill made from files rather than picked: one Markdown/text file of any name becomes `SKILL.md`; several files or a picked/dropped folder (`paths` keeps the layout) need a `SKILL.md` (at the top or in one folder, which is stripped — `400 ENOSKILLMD` otherwise); a single `.zip`/`.skill` is unpacked (sizes checked from its directory first, a symlink entry `ESYMLINK`, `__MACOSX`/`.DS_Store`/`.git`/`node_modules` skipped); an upload holding several skill folders makes one artifact per skill, named by its folder, and stores NOTHING if any of them fails. The `name` the user typed (only for a single skill; else the frontmatter `name:`, the folder or the file name) is made a folder name (`skillSlug`: marks dropped, other characters → `-`; `400 EBADNAME` if nothing is left) and written into `SKILL.md`'s frontmatter as `name:`; a `description` given replaces the frontmatter's, and a skill with none anywhere is `400 ENODESCRIPTION`. Paths are relative with no `..` (`EBADPATH`); the same limits and `ESECRET` as a picked skill. `new` writes `SKILL.md` from `content` the same way.
 - **plugin** — only the spec and its marketplace source (`EBADPLUGIN`, `EBADMARKET`: `owner/repo`, a `validateRemoteUrl` URL, or an https link to a `marketplace.json`); no files. A GitHub web link becomes `owner/repo`, and a forge's `…/src/…`, `…/tree/…`, `…/blob/…` suffix or trailing slash is trimmed. The same `key` added again by its owner updates that row. **inspect** reads the marketplace's `.claude-plugin/marketplace.json` to list its plugins: a git link is cloned shallow, blob-less and without checkout into a temp dir that is removed after, with every credential helper switched off and no prompt (a repository that needs a login is `502 ENEEDLOGIN`; type the key by hand — installing then uses each user's own git login), https only (an ssh link is `400 ESSHMARKET`); a repo with only a `plugin.json` is `400 ENOTMARKET`; unreachable `502 EMARKETFETCH`. It reaches any https host a signed-in user names, like `publish` does — no login is ever sent with it.

docs/SERVER-MODE.md

@@ -555,6 +555,10 @@ agenthub accounts pin team-key mia --tool codex   # pins work as for Claude
   is used only for a pane that runs as its developer (one Linux user per
   account): AgentHub writes the account's `auth.json` into that developer's
   `~/.codex` as them (0600) just before the pane starts.
+  - The pane runs `codex --no-daemon` (when that Codex lists the flag in
+    `--help`): Codex ≥ 0.164 otherwise hands a plain session to the home's
+    shared app-server daemon, which outlives every pane and keeps the login
+    it started with — the new `auth.json` would not be used.
   - A host pane never gets one: its `CODEX_HOME` holds the host's own login.
   - A developer who signed Codex in themselves keeps their own login.
   - While a pane of theirs runs on a pool account, their next pane uses the

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "agenthub",
-  "version": "2.8.44",
+  "version": "2.8.47",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "agenthub",
-      "version": "2.8.44",
+      "version": "2.8.47",
       "hasInstallScript": true,
       "license": "UNLICENSED",
       "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "agenthub",
-  "version": "2.8.44",
+  "version": "2.8.47",
   "bin": {
     "agenthub": "bin/agenthub.js"
   },

server/__tests__/artifacts.test.js

@@ -665,6 +665,128 @@ describe("skills from files or written", () => {
     assert.equal(bad.body.error.code, "EBADNAME");
   });
 
+  it("updates the uploader's same-named skill instead of adding a twin", async () => {
+    const md = (v) => `---\nname: sg-again\ndescription: version ${v}\n---\nBody ${v}.\n`;
+    const first = await upload("/api/artifacts/skill/upload", [["sg-again/SKILL.md", md(1)]]);
+    assert.equal(first.status, 201, JSON.stringify(first.body));
+    const id = first.body.items[0].id;
+    const again = await upload("/api/artifacts/skill/upload", [["sg-again/SKILL.md", md(2)]]);
+    assert.equal(again.status, 201, JSON.stringify(again.body));
+    assert.equal(again.body.items[0].id, id);
+    assert.equal(again.body.items[0].replaced, true);
+    assert.equal(again.body.items[0].changed, true);
+    assert.equal(again.body.items[0].description, "version 2");
+    assert.match(snapText(again.body.items[0]), /Body 2\./);
+    const rows = db
+      .prepare("SELECT COUNT(*) AS n FROM artifacts WHERE kind = 'skill' AND source = 'sg-again'")
+      .get();
+    assert.equal(rows.n, 1);
+    const same = await upload("/api/artifacts/skill/upload", [["sg-again/SKILL.md", md(2)]]);
+    assert.equal(same.body.items[0].changed, false);
+  });
+
+  it("dates a skill by its content, and tells each install's copy from the newest", async () => {
+    const md = (v) => `---\nname: sg-state\ndescription: d\n---\nState ${v}.\n`;
+    const first = await upload("/api/artifacts/skill/upload", [["sg-state/SKILL.md", md(1)]]);
+    const id = first.body.items[0].id;
+    const at1 = first.body.items[0].versionAt;
+    assert.ok(at1);
+    const states = async () =>
+      (await request("GET", `/api/artifacts/${id}/installs`)).body.items.map((i) => i.state);
+    assert.equal((await request("POST", `/api/artifacts/${id}/install`, {})).status, 200);
+    assert.deepEqual(await states(), ["latest"]);
+
+    // A rename is no new version; new content is.
+    const renamed = await request("PATCH", `/api/artifacts/${id}`, { title: "State" });
+    assert.equal(renamed.body.item.versionAt, at1);
+    await new Promise((r) => setTimeout(r, 5));
+    const next = await upload("/api/artifacts/skill/upload", [["sg-state/SKILL.md", md(2)]]);
+    assert.ok(next.body.items[0].versionAt > at1);
+    assert.deepEqual(await states(), ["outdated"]);
+
+    fs.rmSync(path.join(process.env.CLAUDE_HOME, "skills", "sg-state"), { recursive: true });
+    assert.deepEqual(await states(), ["removed"]);
+  });
+
+  it("Share again: an uploaded skill asks for its folder, which replaces that row", async () => {
+    const md = (v) => `---\nname: sg-up\ndescription: d\n---\nUp ${v}.\n`;
+    const first = await upload("/api/artifacts/skill/upload", [["sg-up/SKILL.md", md(1)]]);
+    const id = first.body.items[0].id;
+    const no = await request("POST", `/api/artifacts/${id}/reshare`);
+    assert.equal(no.status, 409);
+    assert.equal(no.body.error.code, "ENOSOURCE");
+    // The folder picked again, under any folder name: onto THIS row.
+    const r = await upload("/api/artifacts/skill/upload", [["renamed/SKILL.md", md(2)]], {
+      id: String(id),
+    });
+    assert.equal(r.status, 201, JSON.stringify(r.body));
+    assert.equal(r.body.items[0].id, id);
+    assert.equal(r.body.items[0].source, "sg-up");
+    assert.match(snapText(r.body.items[0]), /^---\nname: sg-up\n[\s\S]*Up 2\./);
+    const two = await upload(
+      "/api/artifacts/skill/upload",
+      [
+        ["p/a/SKILL.md", "---\nname: a\ndescription: d\n---\n"],
+        ["p/b/SKILL.md", "---\nname: b\ndescription: d\n---\n"],
+      ],
+      { id: String(id) }
+    );
+    assert.equal(two.body.error.code, "EBADUPLOAD");
+  });
+
+  it("Share again takes the owner's folder, else the skill of an installed plugin", async () => {
+    const home = process.env.CLAUDE_HOME;
+    // An uploaded skill whose name a user-scope plugin also ships.
+    const first = await upload("/api/artifacts/skill/upload", [
+      ["sg-plug/SKILL.md", "---\nname: sg-plug\ndescription: d\n---\nOld.\n"],
+    ]);
+    const id = first.body.items[0].id;
+    const writePlugin = (ver, text) => {
+      const at = path.join(home, "plugins", "cache", "m", "p", ver);
+      fs.mkdirSync(path.join(at, "skills", "sg-plug"), { recursive: true });
+      fs.writeFileSync(path.join(at, "skills", "sg-plug", "SKILL.md"), text);
+      return at;
+    };
+    const v1 = writePlugin("1.0.0", "---\nname: sg-plug\ndescription: d\n---\nPlugin one.\n");
+    const v2 = writePlugin("2.0.0", "---\nname: sg-plug\ndescription: d\n---\nPlugin two.\n");
+    fs.writeFileSync(
+      path.join(home, "plugins", "installed_plugins.json"),
+      JSON.stringify({
+        version: 2,
+        plugins: {
+          "p@m": [{ scope: "user", installPath: v2, lastUpdated: "2026-10-30T00:00:00Z" }],
+          "old@m": [{ scope: "user", installPath: v1, lastUpdated: "2026-01-01T00:00:00Z" }],
+          "proj@m": [
+            { scope: "project", installPath: "/etc", lastUpdated: "2027-01-01T00:00:00Z" },
+          ],
+        },
+      })
+    );
+    const r = await request("POST", `/api/artifacts/${id}/reshare`);
+    assert.equal(r.status, 200, r.text);
+    assert.equal(r.body.changed, true);
+    assert.match(snapText(r.body.item), /Plugin two\./);
+    assert.equal((await request("POST", `/api/artifacts/${id}/reshare`)).body.changed, false);
+
+    // The owner's own ~/.claude/skills folder outranks a plugin's copy.
+    const own = path.join(home, "skills", "sg-plug");
+    fs.mkdirSync(own, { recursive: true });
+    fs.writeFileSync(
+      path.join(own, "SKILL.md"),
+      "---\nname: sg-plug\ndescription: d\n---\nMine.\n"
+    );
+    const mine = await request("POST", `/api/artifacts/${id}/reshare`);
+    assert.equal(mine.body.changed, true);
+    assert.match(snapText(mine.body.item), /Mine\./);
+    // Recorded as the folder's state: the 15 s sync does not take it twice.
+    assert.deepEqual(
+      artifacts.syncSkillSources({ force: true }).filter((c) => c.id === id),
+      []
+    );
+    fs.rmSync(path.join(home, "plugins"), { recursive: true, force: true });
+    fs.rmSync(own, { recursive: true, force: true });
+  });
+
   it("keeps an uploaded file as a snapshot, by its own base name", async () => {
     const r = await upload("/api/artifacts/file/upload", [["report.html", "<h1>x</h1>"]], {
       title: "Report",
@@ -859,6 +981,23 @@ describe("outputs captured at a session's stop", () => {
     );
     assert.deepEqual(await artifacts.captureOutputs("no-such-session"), []);
   });
+
+  it("leaves a web app's own pages alone and still takes a standalone HTML report", async () => {
+    const put = (rel, text = "<p>x</p>") => {
+      fs.mkdirSync(path.dirname(path.join(ws, rel)), { recursive: true });
+      fs.writeFileSync(path.join(ws, rel), text);
+      const soon = new Date(Date.now() + 5 * 60 * 1000);
+      fs.utimesSync(path.join(ws, rel), soon, soon);
+    };
+    put("app/index.html");
+    put("app/www/page.html");
+    put("widget/view.html");
+    put("widget/view.js", "x()");
+    put("summary-report.html");
+    put("out/q3.html");
+    const got = (await artifacts.captureOutputs("s1")).map((r) => r.source).sort();
+    assert.deepEqual(got, ["out/q3.html", "summary-report.html"]);
+  });
 });
 
 describe("unowned rows", () => {

server/__tests__/codex-pool.test.js

@@ -243,6 +243,29 @@ describe("codex pool: spawn", () => {
     assert.equal(row.account, "c");
   });
 
+  it("runs a ChatGPT pane without the shared daemon, only when its Codex has the flag", () => {
+    // The home's app-server daemon keeps the login it started with: a placed
+    // login reaches only a pane that runs its own app server.
+    const fakeCodex = (name, help) => {
+      const file = path.join(TMP, name);
+      fs.writeFileSync(file, `#!/bin/sh\necho '${help}'\n`, { mode: 0o755 });
+      return file;
+    };
+    const prev = process.env.AGENTHUB_CODEX_BIN;
+    try {
+      pool.addAccount("c", { auth: AUTH("acct-c") });
+      process.env.AGENTHUB_CODEX_BIN = fakeCodex("codex-new", "      --no-daemon  Run without");
+      assert.deepEqual(pool.forSpawn(MIA).argv, ["--no-daemon"]);
+      process.env.AGENTHUB_CODEX_BIN = fakeCodex("codex-old", "      --oss  Use a local model");
+      assert.deepEqual(pool.forSpawn(MIA).argv, [], "an older Codex would refuse the flag");
+      process.env.AGENTHUB_CODEX_BIN = path.join(TMP, "no-such-codex");
+      assert.deepEqual(pool.forSpawn(MIA).argv, []);
+    } finally {
+      if (prev === undefined) delete process.env.AGENTHUB_CODEX_BIN;
+      else process.env.AGENTHUB_CODEX_BIN = prev;
+    }
+  });
+
   it("never replaces a member's own login, and stays on the account their live pane uses", () => {
     pool.addAccount("c", { auth: AUTH("acct-c") });
     pool.addAccount("d", { auth: AUTH("acct-d") });
@@ -272,7 +295,10 @@ describe("codex pool: spawn", () => {
     fs.writeFileSync(MIA_AUTH, JSON.stringify(own));
     assert.equal(pool.pickAccount(MIA), null);
     pty.spawnRun({ laneId: 50, cwd: path.join(MIA.home, "p"), tool: "codex" });
-    assert.equal(JSON.parse(fs.readFileSync(MIA_AUTH, "utf8")).tokens.refresh_token, "rt-mias-seat");
+    assert.equal(
+      JSON.parse(fs.readFileSync(MIA_AUTH, "utf8")).tokens.refresh_token,
+      "rt-mias-seat"
+    );
   });
 
   it("copies the newest auth.json back into the pool", () => {

server/db.js

@@ -973,11 +973,16 @@ for (const [col, ddl] of [
   ["suggested_owner_id", "suggested_owner_id INTEGER"],
   ["version", "version TEXT"],
   ["source_hash", "source_hash TEXT"],
+  ["version_at", "version_at TEXT"],
 ]) {
   try {
     db.prepare(`SELECT ${col} FROM artifacts LIMIT 1`).get();
   } catch {
     db.prepare(`ALTER TABLE artifacts ADD COLUMN ${ddl}`).run();
+    // `version_at`: when a row's CONTENT last changed (a new snapshot) — a
+    // rename or a share toggle moves `updated_at` but not this. An existing
+    // row starts from its `updated_at`, the best record there is.
+    if (col === "version_at") db.prepare("UPDATE artifacts SET version_at = updated_at").run();
   }
 }
 

server/lib/artifacts.js

@@ -173,6 +173,8 @@ function view(row, req, owners = null) {
     suggestedForMe: !!req?.user && row.owner_id == null && row.suggested_owner_id === req.user.id,
     createdAt: row.created_at,
     updatedAt: row.updated_at,
+    // When its content last changed (a new snapshot): a page or plugin never does.
+    versionAt: row.version_at || row.created_at,
   };
 }
 
@@ -549,13 +551,38 @@ async function pinFile(req, { laneId, path: rel, title, description, sessionId }
 const OUTPUT_EXT = /\.(pptx|docx|xlsx|pdf|html?)$/i;
 /** Most files one stop captures, so a script that writes hundreds stays bounded. */
 const OUTPUT_MAX = 20;
+/** Folders that hold a site's own pages, never a report someone reads. */
+const SITE_DIR_RE = /^(www|public|dist|build|src|static|templates|assets|site|_site)$/i;
+/** What sits next to a site's page: its scripts and styles. */
+const SITE_ASSET_RE = /\.(m?js|jsx|tsx?|vue|svelte|css|s[ac]ss|less)$/i;
+
+/**
+ * An HTML file that is a web app's own page, not a report (`app/www/index.html`
+ * of a project not yet committed): an `index.html`, one under a site folder
+ * (`SITE_DIR_RE`), or one beside scripts or stylesheets in its folder. The
+ * workspace root is exempt from that last test — a repo keeps its config
+ * `.js` there next to the reports people write.
+ */
+async function isSitePage(cwd, rel) {
+  const parts = rel.split("/");
+  const name = parts.pop();
+  if (/^index\.html?$/i.test(name)) return true;
+  if (parts.some((d) => SITE_DIR_RE.test(d))) return true;
+  if (!parts.length) return false;
+  try {
+    const names = await fs.promises.readdir(path.join(cwd, ...parts));
+    return names.some((n) => SITE_ASSET_RE.test(n));
+  } catch {
+    return false;
+  }
+}
 const capturing = new Map();
 
 /**
  * The workspace's documents a session created or changed since it started:
- * untracked or modified files in a repo (an HTML file only when untracked, so a
- * site's own pages are not taken), every file of a plain folder. Paths are
- * workspace-relative.
+ * untracked or modified files in a repo (an HTML file only when untracked and
+ * not a site's own page — `isSitePage`), every file of a plain folder. Paths
+ * are workspace-relative.
  */
 async function outputCandidates(lane, since) {
   const gd = require("./git-diff");
@@ -572,7 +599,7 @@ async function outputCandidates(lane, since) {
   const out = [];
   for (const rel of new Set(paths)) {
     if (!OUTPUT_EXT.test(rel)) continue;
-    if (/\.html?$/i.test(rel) && tracked.has(rel)) continue;
+    if (/\.html?$/i.test(rel) && (tracked.has(rel) || (await isSitePage(lane.cwd, rel)))) continue;
     let st;
     try {
       st = await fs.promises.lstat(path.join(lane.cwd, rel));
@@ -627,7 +654,7 @@ async function captureOutputsNow(laneId, sessionId) {
     const files = JSON.stringify([{ path: shot.name, size: shot.size, mtime: mtimeMs }]);
     if (row) {
       sql(
-        "UPDATE artifacts SET snapshot = ?, files = ?, size = ?, session_id = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?"
+        "UPDATE artifacts SET snapshot = ?, files = ?, size = ?, session_id = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now'), version_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?"
       ).run(shot.snap.id, files, shot.size, String(sessionId), row.id);
       dropSnapshot(row.snapshot);
       done.push(sql("SELECT * FROM artifacts WHERE id = ?").get(row.id));
@@ -1125,8 +1152,20 @@ function saveSkillFiles(req, { name, files, title, description }) {
  * `paths`). Answers every skill it made. Nothing is stored unless every
  * skill in the upload passes.
  */
-function uploadSkills(req, { uploads, name, title, description }) {
+function uploadSkills(req, { uploads, name, title, description, id }) {
+  // `id`: Share again for a skill the server has no copy of — the upload
+  // replaces THAT row (one skill, named as the row is).
+  let onto = null;
+  if (id != null && id !== "") {
+    onto = load(req, id);
+    if (!canChange(req, onto)) throw fail("EFORBIDDEN", "only its owner changes an artifact");
+    if (onto.kind !== "skill") throw fail("EBADKIND", "only a skill is shared again");
+    name = onto.source;
+  }
   const found = skillsFromUpload(uploads || [], { name, description });
+  if (onto && found.length !== 1) {
+    throw fail("EBADUPLOAD", "choose the folder or .zip of this one skill");
+  }
   const typed = typeof name === "string" && name.trim();
   const prepared = found.map((sk) => ({
     name: validSkillName(found.length === 1 && typed ? typed : sk.fallbackName || ""),
@@ -1140,16 +1179,46 @@ function uploadSkills(req, { uploads, name, title, description }) {
     withFrontmatter(md.data.toString("utf8"), p.name, found.length === 1 ? description : "");
     checkSkillFiles(p.files);
   }
-  return prepared.map((p) =>
-    saveSkillFiles(req, {
+  return prepared.map((p) => {
+    // A skill its uploader already has (same name, not a workspace's) gets
+    // the new version on that row — installers see Update — never a twin.
+    const own = onto || ownSkillRow(req, p.name);
+    if (own) return replaceUploaded(req, own, p, found.length === 1 ? description : "");
+    return saveSkillFiles(req, {
       name: p.name,
       files: p.files,
       title: found.length === 1 ? title : "",
       description: found.length === 1 ? description : "",
-    })
+    });
+  });
+}
+
+/** The caller's newest skill row of that name taken from no workspace, or null. */
+function ownSkillRow(req, name) {
+  const owner = req?.user ? req.user.id : null;
+  return (
+    sql(
+      `SELECT * FROM artifacts WHERE kind = 'skill' AND source = ? AND lane_id IS NULL
+         AND snapshot IS NOT NULL AND owner_id IS ? ORDER BY updated_at DESC, id DESC LIMIT 1`
+    ).get(name, owner) || null
   );
 }
 
+/** An uploaded skill onto an existing row: same frontmatter rules as a new one. */
+function replaceUploaded(req, row, { name, files }, description) {
+  const md = files.find((f) => f.path === "SKILL.md");
+  const text = md.data.toString("utf8");
+  if (text.includes("\uFFFD")) throw fail("EBADSKILL", "SKILL.md is not a UTF-8 text file");
+  const fixed = Buffer.from(withFrontmatter(text, name, description), "utf8");
+  const all = [{ path: "SKILL.md", data: fixed }, ...files.filter((f) => f !== md)];
+  checkSkillFiles(all);
+  const changed = contentHash(all) !== snapshotVersion(row);
+  // The owner's folder as it is now (like `storeSkill`): only a LATER change
+  // to it replaces this upload.
+  if (changed) replaceSnapshot(row, all, sourceHash(row) ?? row.source_hash);
+  return { ...shareNow(req, row.id, changed), replaced: true, changed };
+}
+
 /** A skill written in the dialog: a name, a description and its instructions. */
 function writeSkill(req, { name, description, content, title }) {
   const n = validSkillName(name);
@@ -1599,7 +1668,8 @@ function editSkill(req, row, { name, description, content }) {
   sql(
     `UPDATE artifacts SET source = ?, snapshot = ?, files = ?, size = ?, description = ?,
             version = ?, source_hash = ?,
-            updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`
+            updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now'),
+            version_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`
   ).run(
     n,
     snap.id,
@@ -1936,6 +2006,23 @@ function syncOne(row) {
   } catch {
     return false;
   }
+  try {
+    replaceSnapshot(row, files, st.hash);
+  } catch {
+    return false;
+  }
+  return true;
+}
+
+/**
+ * Point a skill row at a NEW snapshot holding `files` (`[{path, data}]`, already
+ * checked), then drop the old one — never a write into the snapshot being
+ * read. Installers then see Update (`updateCheck`). `sourceHash` is the
+ * source folder's state to record, so `syncOne` takes only a LATER change.
+ * The description follows SKILL.md's only while it still says what the old
+ * one did.
+ */
+function replaceSnapshot(row, files, sourceHash) {
   const snap = newSnapshotDir();
   let total = 0;
   const next = [];
@@ -1947,11 +2034,10 @@ function syncOne(row) {
       total += f.data.length;
       next.push({ path: f.path, size: f.data.length });
     }
-  } catch {
+  } catch (err) {
     dropSnapshot(snap.id);
-    return false;
+    throw err;
   }
-  // The description follows SKILL.md's only while it still says what the old one did.
   const md = (list) => list.find((f) => f.path === "SKILL.md");
   let oldSummary = "";
   try {
@@ -1969,10 +2055,98 @@ function syncOne(row) {
       : row.description;
   sql(
     `UPDATE artifacts SET snapshot = ?, files = ?, size = ?, version = ?, source_hash = ?,
-            description = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`
-  ).run(snap.id, JSON.stringify(next), total, st.hash, st.hash, description, row.id);
+            description = ?, updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now'),
+            version_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`
+  ).run(
+    snap.id,
+    JSON.stringify(next),
+    total,
+    contentHash(files),
+    sourceHash ?? null,
+    description,
+    row.id
+  );
   if (row.snapshot && SNAPSHOT_RE.test(row.snapshot)) dropSnapshot(row.snapshot);
-  return true;
+}
+
+/**
+ * The owner's skill folder on THIS server as it is now, for Share again:
+ * the row's own source folder (`sourceDirOf`), else — a skill not taken from
+ * a workspace — the same-named skill of a plugin the owner installed at user
+ * scope (`installed_plugins.json`; the most recently updated when several
+ * have it), never outside the owner's `~/.claude/plugins/`. Answers
+ * `{st, fromSource}` (`folderState`) or null when the server has no copy (an
+ * uploaded skill: its owner picks the folder again).
+ */
+function machineSkill(row) {
+  const src = sourceDirOf(row);
+  const st = src && folderState(src.dir, src.top);
+  if (st) return { st, fromSource: true };
+  if (!src || row.lane_id != null) return null;
+  const top = path.join(src.top, "plugins");
+  let installed = {};
+  try {
+    const user = sql("SELECT id, username, role FROM users WHERE id = ?").get(row.owner_id);
+    const file = path.join(top, "installed_plugins.json");
+    const text =
+      user && ownAccount({ user }).acct
+        ? require("./run-as").readFileSafe(file, "utf8", { max: 4 << 20 })
+        : fs.readFileSync(file, "utf8");
+    installed = JSON.parse(text)?.plugins || {};
+  } catch {
+    return null;
+  }
+  let best = null;
+  for (const entries of Object.values(installed)) {
+    for (const e of Array.isArray(entries) ? entries : []) {
+      if (!e || e.scope !== "user" || typeof e.installPath !== "string") continue;
+      const st2 = folderState(path.join(e.installPath, "skills", row.source), top);
+      const at = Date.parse(e.lastUpdated || e.installedAt || "") || 0;
+      if (st2 && (!best || at > best.at)) best = { st: st2, at };
+    }
+  }
+  return best ? { st: best.st, fromSource: false } : null;
+}
+
+/**
+ * Share again: take the owner's skill folder on this server as the row's new
+ * snapshot (`machineSkill`) and share it (server mode), so installers are
+ * offered Update. ENOSOURCE when the server has no copy — the client then
+ * asks for the folder or .zip and uploads it onto this row (`uploadSkills`
+ * with `id`). Answers `{item, changed}`.
+ */
+function reshareSkill(req, id) {
+  const row = load(req, id);
+  if (!canChange(req, row)) throw fail("EFORBIDDEN", "only its owner changes an artifact");
+  if (row.kind !== "skill") throw fail("EBADKIND", "only a skill is shared again");
+  const found = machineSkill(row);
+  if (!found) {
+    throw fail("ENOSOURCE", "this server has no copy of the skill: choose its folder or .zip");
+  }
+  const files = found.st.read();
+  checkSkillFiles(files);
+  const changed = found.st.hash !== snapshotVersion(row);
+  if (changed) {
+    replaceSnapshot(row, files, found.fromSource ? found.st.hash : row.source_hash);
+  } else if (found.fromSource) {
+    sql("UPDATE artifacts SET source_hash = ? WHERE id = ?").run(found.st.hash, row.id);
+  }
+  return { item: shareNow(req, row.id, changed), changed };
+}
+
+/** Share a row (server mode, when it is not yet) and answer its view; `audit` names a new version. */
+function shareNow(req, id, changed) {
+  const row = sql("SELECT * FROM artifacts WHERE id = ?").get(id);
+  if (isServer() && row.shared !== 1) {
+    sql(
+      `UPDATE artifacts SET shared = 1, shared_at = strftime('%Y-%m-%dT%H:%M:%fZ','now'),
+              updated_at = strftime('%Y-%m-%dT%H:%M:%fZ','now') WHERE id = ?`
+    ).run(id);
+    audit(req, row, "shared");
+  } else if (changed && row.shared === 1) {
+    audit(req, row, "updated");
+  }
+  return view(sql("SELECT * FROM artifacts WHERE id = ?").get(id), req);
 }
 
 const SYNC_EVERY_MS = 15 * 1000;
@@ -2163,6 +2337,36 @@ async function uninstall(req, id) {
  * the installer and an admin. `unrecorded` = installs counted before this
  * list was kept.
  */
+/**
+ * Where one recorded install of a skill stands now, from its Claude
+ * `skills/<name>` copies (one per account it went into; the cross-tool
+ * `~/.agents/skills` twins are the same files) —
+ * `outdated` when any differs from the row's newest snapshot (its user is
+ * offered Update), `removed` when none is there any more, `unknown` when one
+ * is there but unreadable as a skill, else `latest`. Only hashes are
+ * compared; no content leaves the server. The paths are the ones the server
+ * itself recorded at install, read like `updateCheck` reads the viewer's own.
+ */
+function installState(row, paths) {
+  const version = snapshotVersion(row);
+  const dirs = (Array.isArray(paths) ? paths : []).filter(
+    (p) =>
+      typeof p === "string" &&
+      path.basename(p) === row.source &&
+      path.basename(path.dirname(p)) === "skills" &&
+      path.basename(path.dirname(path.dirname(p))) !== ".agents"
+  );
+  if (!version || !dirs.length) return "unknown";
+  const states = dirs.map((dir) => {
+    const st = folderState(dir, path.dirname(path.dirname(dir)));
+    if (st) return st.hash === version ? "latest" : "outdated";
+    return exists(dir) ? "unknown" : "removed";
+  });
+  if (states.includes("outdated")) return "outdated";
+  if (states.every((x) => x === "removed")) return "removed";
+  return states.includes("unknown") ? "unknown" : "latest";
+}
+
 function installsOf(req, id) {
   const row = load(req, id);
   const u = req?.user;
@@ -2186,6 +2390,7 @@ function installsOf(req, id) {
       mine,
       at: r.installed_at,
       replaced: r.replaced === 1,
+      ...(row.kind === "skill" ? { state: installState(row, paths) } : {}),
       ...(mine || u?.role === "admin" ? { paths } : {}),
     };
   });
@@ -2215,6 +2420,7 @@ module.exports = {
   availableSkills,
   addSkill,
   uploadSkills,
+  reshareSkill,
   writeSkill,
   uploadFile,
   skillSlug,

server/lib/codex-pool.js

@@ -19,7 +19,9 @@
  *     home AgentHub placed that account in, never dated in the future, and
  *     only when its id_token names the same account (`mayCopyBack`); the 2026-10-08
  *     spike showed an old refresh token still refreshes, so panes sharing an
- *     account do not log each other out.
+ *     account do not log each other out. Such a pane runs `--no-daemon`
+ *     (when its Codex has the flag): the home's shared app-server daemon
+ *     would keep serving the login it started with.
  *
  * Records live in `<CLAUDE_HOME>/agenthub-codex-accounts/<name>.json` (dir
  * 0700, file 0600); no route returns a key or a token.
@@ -424,6 +426,46 @@ function liveInHome(name, member) {
     });
 }
 
+// Codex ≥ 0.164 hands a plain TUI (no `-c` override) to the CODEX_HOME's shared
+// app-server daemon, which outlives every TUI and keeps the login it started
+// with — so a ChatGPT login placed in the home reached no pane while the
+// member's daemon ran on the previous one (reproduced on 0.164.0). A pool pane
+// runs its own app server instead. An older Codex has neither the daemon nor
+// the flag (it would refuse to start), so the flag goes only to a binary whose
+// --help lists it: probed once per binary (path, size, mtime).
+const noDaemonCache = new Map();
+
+function noDaemonArgv(member) {
+  const bin =
+    process.env.AGENTHUB_CODEX_BIN ||
+    (member
+      ? require("./shared-tools").sharedPath("codex")
+      : require("./ai-tools").detect("codex").path);
+  if (!bin) return [];
+  let key;
+  try {
+    const st = fs.statSync(bin);
+    key = `${fs.realpathSync(bin)}:${st.size}:${st.mtimeMs}`;
+  } catch {
+    return [];
+  }
+  if (!noDaemonCache.has(key)) {
+    let help = "";
+    try {
+      help = require("node:child_process").execFileSync(bin, ["--help"], {
+        encoding: "utf8",
+        timeout: 5000,
+        stdio: ["ignore", "pipe", "ignore"],
+        windowsHide: true,
+      });
+    } catch {
+      /* no answer: leave the flag out, as before */
+    }
+    noDaemonCache.set(key, /--no-daemon\b/.test(help));
+  }
+  return noDaemonCache.get(key) ? ["--no-daemon"] : [];
+}
+
 /** `{name, kind}` of the account a new Codex pane would get, or null. */
 function pickAccount(member = null, ownerId = null) {
   const a = pick(member, ownerId);
@@ -449,7 +491,7 @@ function forSpawn(member = null, ownerId = null) {
   }
   return {
     name: a.name,
-    argv: [],
+    argv: noDaemonArgv(member),
     env: {},
     place: () => {
       syncHome(member.home); // a live pane may hold a newer login than ours

server/openapi-extra/artifacts.js

@@ -238,7 +238,7 @@ const paths = {
       summary: "Skills from files: a file, a folder, a .zip/.skill or several skills",
       operationId: "uploadArtifactSkills",
       description:
-        "`paths` is a JSON array of each file's relative path. Zip sizes are read before inflating; nothing is stored if any skill fails.",
+        "`paths` is a JSON array of each file's relative path. Zip sizes are read before inflating; nothing is stored if any skill fails. A skill whose name matches one the caller already has (not a workspace's) becomes that row's new version (`replaced: true`, `changed`) instead of a second row; `id` (Share again) puts the ONE uploaded skill onto that row, under the row's name.",
       requestBody: multipart(
         {
           files: { type: "array", items: { type: "string", format: "binary" } },
@@ -246,6 +246,7 @@ const paths = {
           name: { type: "string" },
           title: { type: "string" },
           description: { type: "string" },
+          id: { type: "string", description: "Share again: the skill row the upload replaces." },
         },
         ["files"]
       ),

server/openapi-extra/ops-more.js

@@ -1113,6 +1113,26 @@ const paths = {
       },
     },
   },
+  "/api/artifacts/{id}/reshare": {
+    post: {
+      tags: ["Artifacts"],
+      summary: "Share again: a skill's newest version from its owner's folder on this server",
+      operationId: "reshareArtifact",
+      description:
+        "The owner's skill folder (the row's source folder, else the same-named skill of a plugin the owner installed at user scope) becomes the new snapshot, and the row is shared (server mode); installers are then offered Update. 409 ENOSOURCE when the server has no copy: upload the folder with `id` on /api/artifacts/skill/upload. Same-origin only.",
+      parameters: [pathParam("id", "Artifact id.")],
+      responses: {
+        200: ok("Taken.", {
+          item: { type: "object" },
+          changed: { type: "boolean" },
+        }),
+        400: errs("EBADKIND."),
+        403: errs("EFORBIDDEN."),
+        404: errs("ENOTFOUND."),
+        409: errs("ENOSOURCE."),
+      },
+    },
+  },
   "/api/artifacts/{id}/claim": {
     post: {
       tags: ["Artifacts"],

server/routes/artifacts.js

@@ -39,6 +39,7 @@ const STATUS = {
   ENEEDLOGIN: 502,
   ETOOBIG: 413,
   EOWNED: 409,
+  ENOSOURCE: 409,
 };
 
 function sendError(res, err) {
@@ -229,6 +230,7 @@ router.post(
       name: b.name,
       title: b.title,
       description: b.description,
+      id: b.id,
     });
     for (const item of items) changed(item);
     res.status(201).json({ items });
@@ -284,6 +286,19 @@ router.patch(
   })
 );
 
+// Share again: the owner's skill folder on this server becomes the new
+// version (installers see Update); 409 ENOSOURCE when the server has none —
+// the client then uploads the folder onto this row (`/skill/upload` + `id`).
+router.post(
+  "/:id/reshare",
+  sameOriginGuard,
+  wrap((req, res) => {
+    const out = artifacts.reshareSkill(req, req.params.id);
+    changed(out.item);
+    res.json(out);
+  })
+);
+
 router.delete(
   "/:id",
   sameOriginGuard,