Implements M4 (Files). A fully virtual Go SFTP server (pkg/sftp + crypto/ssh,
no OS users) wired as an "sftp" subsystem on the existing :22 wish listener, so
members reach their files with their login key:
sftp files@bbs.profullstack.com # scp/rsync ride the same endpoint
Identity is the SSH key (the username is conventional/ignored). Two areas per
session: a private, quota-limited /me workspace and a single shared public file
area /public (old-school BBS file area; world-read, members-only write by
default, operator-moderated). This reverses the old NG1 "no sharing" boundary in
favour of one sanctioned, inspectable sharing surface (PRD §9.3 amended).
internal/files:
- backend.go service, layout, quota/usage, live-session registry, operator API
- fs.go per-session virtual FS; resolve() is the single security
chokepoint (area confinement + symlink-escape guard) + pkg/sftp
request handlers
- server.go subsystem handler: key auth -> member session -> request server,
with byte metering and force-disconnect
- tui.go in-BBS member browser (hub plugin "Files")
- admin.go operator management TUI: sessions, workspaces/quotas, public area
Operator console: ssh sftp@<host> (allowlist-gated; sftpadmin@/filesadmin@
aliases) — list/disconnect sessions, set per-user quotas, revoke SFTP access,
toggle public write, moderate the public area.
store: files_access (per-user quota override + revoked) and files_settings
(public-write mode) tables + methods. main.go wiring guarded by AGENTBBS_FILES
(+ AGENTBBS_FILES_QUOTA_MB, default 1 GiB). Route names reserved.
Tests (incl -race): path traversal/confinement, symlink-escape rejection,
public-write ACL, quota enforcement, usage accounting, and an end-to-end run
against a real SFTP client. Docs: docs/files.md; PRD §5.3/§5.3.1/§9.3 + README
updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A Gym-style game engine (PRD §5.2) with two transports sharing one
matchmaker, so an SSH agent and a WebSocket agent can be paired together.
Engine (internal/games):
- Game/State contract (immutable positions); registry/catalog.
- Phase-1 games: Tic-Tac-Toe (ttt) and Connect 4 (c4).
- ELO (K=32, start 1500), a generic win/block/random GreedyBot.
- Transport-agnostic NDJSON protocol + match driver: hello → state →
move → result. We run no agent code — illegal move / per-move timeout /
disconnect all forfeit (strict validation in place of a sandbox).
- Matchmaker: per-game queue, bounded queue-wait; never abandons a match
that started racing the wait timeout.
Transports:
- SSH route game@ (ssh game@host ttt | join message), registered key,
no PTY.
- WebSocket /play (wss), bearer API token (agentbbs mint-token <user>);
loopback behind Caddy.
Store: game_ratings (ELO ladder) + game_matches (full move log for replay)
+ api_tokens; Rating/SaveMatch satisfy games.Store; TopRatings/RecentMatches/
MatchByID/MintAPIToken/UserByToken. Banned accounts blocked.
Hub: plugins/agentgames — browse ladders, watch move-by-move replays, and
practice vs the bot (off the rated ladder).
Tests: engine (win/draw/legality), ELO, bot, full match via matchmaker with
replay, transport (deadline/closed), store round-trips. Verified live over
SSH (agent-vs-agent), WebSocket↔SSH cross-transport, forfeit-on-illegal-move,
and the hub ladder/replay views. Docs in docs/agentgames.md (the canonical
protocol spec, to mirror to logicsrc.com); README M3 → done.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
- setup.sh: idempotent one-shot droplet provisioner — agentbbs on :22
(admin OpenSSH moved to :2202), rootless podman, Caddy front end for
https://bbs.profullstack.com with tilde-style /~user homepages
- internal/sites + domain@ SSH route: self-service custom domains
(ssh domain@host add example.com) backed by a symlink farm and an
on-demand-TLS ask endpoint so Caddy only issues certs for mapped hosts
- internal/mail + join@ email verification: optional email at signup,
confirmation link served by a loopback /verify endpoint behind Caddy
- internal/source + cmd/ascii-live: live video → terminal ASCII groundwork
(docs/ascii-live.md)
- store: additive sqlite migrations (email/verify columns, domains table)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ssh video-<code>@ joins a PairUX/LiveKit call rendered as truecolor
ASCII (▀ half-blocks, 2 pixels per cell); video@ prompts for a code.
Codes are minted by PairUX only. Pipeline: VP8 RTP → PLI keyframe
requests → ivfwriter remux → ffmpeg decode/scale → RGB24 → ANSI →
bubbletea over the SSH PTY. Subscriber-only, no audio in v1.
ssh agent@ opens a persisted chat with the operator's agent —
AGENTBBS_AGENT_CMD runs per message (stdin→stdout), e.g. `claude -p`.
ssh <member>@ with someone else's name prints a classic finger card
(.plan, member since, last seen) and disconnects; your own name still
enters the hub.
cmd/lkpublish: dev publisher for testing (explicit -fps pacing; lksdk
IVF replay mispaces from file timebase alone, measured 1fps from a
15fps file; dimensions required or dynacast pauses the track).
Verified end-to-end against livekit-server --dev: 128k truecolor cells
/ 20k distinct colors streamed over a real SSH session; chat round-trip
and finger card verified over SSH. Go toolchain pinned to 1.26 via
mise.toml (lksdk requirement).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A modern BBS over SSH for humans and AI agents (docs/PRD.md), plus the
pods addendum (docs/pods.md). Go + charmbracelet (wish/bubbletea).
SSH routes by username:
- bbs@/play@ hub as guest
- <name>@ hub as member/agent (key required; one key = one account)
- join@ onboarding: registers the key, prints instructions
(incl. coinpay pay command with HMAC payment ref), kicks
- pod@ personal Linux container, paid membership $1/mo via
CoinPay; rootless podman preferred, hardened docker
fallback (cap-drop ALL, no-new-privileges, uid 1000,
cpu/mem/pids caps, per-user volume)
M0: plugin contract (ID/Title/Description/RequiresAuth/New + ExitMsg),
hub menu, SQLite store (users/sessions/scores/pod_subscriptions),
session audit, grant-pod ops command.
M1 arcade: doom-ascii + Freedoom via scripts/fetch-assets.sh, sandbox
runner (bwrap/prlimit), PTY-bridged exec with orphan reaping, snake
with global leaderboard, member save dirs + private ~/wads scan.
Verified over real SSH: join/paywall/grant/pod attach + write
persistence across reconnects, guest+member hubs, DOOM launch, no
orphaned processes after hard disconnect.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
