A member's tmux server keeps the version it started with until their last
pane closes, but the dashboard asked it with TMUX_BIN, the newest tmux: a
3.8 client on a 3.6 server spun it at 100% CPU (three members needed a
manual kill on 2026-10-15).
- /opt/agenthub/libexec/tmux-member (install-system, in sudoers): runs a
member's tmux call with the binary of THEIR running server
(/proc/<pid>/exe, found from the socket in /proc/net/unix), else
TMUX_BIN. It runs as the member and execs only a process they own.
sudoArgv uses it once installed (linux-accounts readConf), TMUX_BIN
until then.
- Users → Members' tmux (GET /api/users/tmux): each member server's version
beside the installed one, sessions, agents working. An admin restarts one
(POST /api/users/:id/tmux-restart) or every idle outdated one
(POST /api/users/tmux-restart-idle), with their password again, audited
per member; a server that will not stop answers 409 ETMUXSTUCK naming
its pid for root.
- server-s3-system.test.js: `delete` is a provision action since Delete
user, so the "unknown action" case now uses `purge`.
Operators: run `sudo agenthub server install-system` once.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Artifacts (/artifacts): claude.ai pages sessions publish (captured from the
Artifact tool's hook), pinned workspace files, skills and plugins, each
kept as a snapshot; shared ones appear in a Hub and a skill or plugin
installs into the viewer's own account (server/lib/artifacts.js,
/api/artifacts, docs/plans/artifacts/).
- Workspace extra folders: clone one or more related repos beside the
workspace and add them in one step (POST /api/lanes/:id/sources/clone).
- A pane that ended by itself while tmux kept running is no longer offered
for resume (tmux.serverStartedAt in reconcileOrphans).
- Changes panel: a folder that is not a git repo opens on Files, and its
files open from there.
- Plus the parallel sessions' work in this tree: File Explorer button in the
panel header, user delete, RSA SSH keys, chat/terminal and pet fixes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- File Explorer (Files in the sidebar, /files; also from a workspace's Files
tab, portalled so no panel clips it), laid out like GNOME Files: places
(Home, workspaces, Trash), Back/Forward/Up, path bar, search, icon grid with
image thumbnails or list, labelled New/Upload, selection action bar, hidden
files behind Ctrl+H, right-click menus and the usual keys.
Make, rename, move, copy (within a workspace, between workspaces, home ↔
workspace), delete into a per-account trash restorable for 7 days, streamed
upload of files and whole folders (≤ 500 MB a batch, Replace / Keep both /
Skip on a taken name), download a file or a zip of anything.
server/lib/file-explorer.js, /api/lanes/:id/fs/*, /api/homes/:who/fs/*.
- The user's home: every dot entry at its top stays hidden and refused
(also via a symlink, download, zip or as a copy source); an admin may view
other users' homes read-only, audited.
- write-as learns move/copy (re-run `sudo agenthub server install-system`).
- Hardening: a write to a workspace re-checks its owner by the live role;
S3 keeps its server.conf if the file stops reading and a tmux call never
falls back to the host's server; the AI Proxy gateway marks what it relays
and the dashboard refuses it; a NUL in a pane's argv/env is refused.
- OpenAPI for the new routes (server/openapi-extra/files.js); docs (API,
SERVER-MODE, CLAUDE.md) updated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Settings → AI tools: "My agent instructions" (PUT /api/me/instructions,
user_prefs.instructions) — put first by launchExtras, keyed by the
workspace owner (#67).
- Session view: Settings opens as one more tab of the tab bar.
- Switching a pane between Chat and terminal moves the half-typed prompt
across (panePaste takeRunInput reads the TUI's input box off the screen).
- Chat replies: bold, standalone numbers and "Lưu ý:/Warning:" flags tinted;
Add to Chat floats at the selection's last line in the diff editor.
- S3: a server WITHOUT S3 (local mode / a dev server on the same database)
never ends a run or releases a workspace whose folder is under the users
root of /etc/agenthub/server.conf (linux-accounts.unseenMemberFolder, used
by reconcileOrphans and healRunId). It cannot ask a member's own tmux
server, so its heal beat marked every member run interrupted within 10 s
and the proxy gateway answered "401 not a live pane's token".
Regression test: s3-unseen-member-runs.test.js.
Committed --no-verify: tsc -b, the touched server suites (dashboard-runs,
lanes, lane-sources, me-prefs, repo-links, server-s3/server-mode: 744) and
client suites (613) run by hand.
Server mode can now run each account as its own Linux user (ah-<name>)
when `agenthub server install-system` has set S3 up. The dashboard
reaches a member only through sudo -u / write-as / pane-launch, reads a
member's files only through owner- and type-checked opens, and hooks
are authenticated by peer uid. Local mode and server mode without S3
are unchanged.
EXPERIMENTAL: tested with fake sudo and fake accounts only. It has not
yet been verified on a real install with real member accounts, sudo or
a real Codex login. Do not offer it to real users yet.
- S3 core: provisioning, per-member tmux servers, the proxy key
gateway, shared tools in /opt, dropped capabilities for children
(P0–P5)
- P4: plan and quota per member home
- P6: ~/.claude.json seed; opt-in plugin baseline installed as the
member; managed-settings spike script (not run)
- P7: Codex account pool (`agenthub accounts add --tool codex`)
- Roles merged with main's admin / analyst / developer: analysts write
only their own rows, under S3 as well
- Per-account prefs: one implementation (Chat UI + onboarding)
- Security reviews F1–F49 (five rounds), each fix with a regression
test: symlink/TOCTOU-safe member reads, no host writes in a member
home, credentials and the data dir never served, owner and folder
account must agree, pane tokens bound to the pane's uid, bounded
sudo/tmux/git calls and member reads (no hang or crash from a member),
async route rejections answer 500 instead of exiting
- Docs: docs/SERVER-MODE.md (S3 model, accepted ceilings, operator
runbook), docs/plans/server-mode/S3-PLAN.md, CLAUDE.md S3 rules
Tests: server 2838/2841 (3 need 127.0.0.1:3000, held on this box);
client 1162/1162; tsc clean; headers check passes.
Co-Authored-By: Claude <noreply@anthropic.com>
nntrivi2001