xlii

          .__  .__.__
   ___  __|  | |__|__|      xlii · a personal AI substrate
   \  \/  /  | |  |  |
    >    <|  |_|  |  |       Your files and curation first.
   /__/\_ \____/__|__|       Remote primitives second.
         \/

   make /code · /plan · /rail      agentic edits, gated
   ask  /chat · /consult · /peer   persona · model · peer
   run  /loop · /tasks · /jobs     set it going, walk away
   keep /wiki · /bookmarks · /nfo  curate; /nfo redraws this

   /help  ·  /howto   →  start here

Install

pip install xlii
# Optional feature sets:
pip install 'xlii[tui]'     # full-screen Textual UI (xlii code --tui)
pip install 'xlii[web]'     # the TUI in a browser tab (xlii serve — NO AUTH on loopback/tailnet; --public = pairing-code gate behind Caddy)
pip install 'xlii[mcp]'     # Grok Build bridge (xlii mcp deep-contexts)
pip install 'xlii[files]'   # PDF + drag-and-drop support for /upload
pip install 'xlii[remote]'  # SFTP for ftp:// remotes
pip install 'xlii[daemon]'  # experimental XMPP multi-machine (slixmpp-omemo)
# From a checkout, TUI/Textual tests need [tui]. [dev] already pulls it:
#   pip install -e '.[dev]'          # pytest + ruff + Textual
#   pip install -e '.[dev,tui]'      # equivalent

Requires Python >= 3.11.

First run

1. Get a management API key from xAI.

2. Export it (never stored on disk):

   export XAI_MANAGEMENT_API_KEY=xai-...
   

3. Run setup (creates ~/.config/xlii/config.json template + provisions chat keys + discovers models):

   xlii setup
   

4. xlii doctor — recovery mantra; fix anything it flags before continuing.

Two places, one talk seat, two postures. Home is the building (roam the machine, never-sync). A folder you make is a room — that’s a project. [M] talks to mojo (the journal; it walks with you). [$] is the lab (/sh, explain, /ops, edits) — that memory stays in the room. xlii chat sits with iXaac (a costume, not a /role), not a third home.

First hour: docs/GOLDEN-PATH.md — doctor → Home → enter a folder → plan → plugin. Full walkthrough: docs/HOWTO.md.

Architecture (what’s true now): docs/ARCHITECTURE.md · Legacy names: docs/LEGACY.md

Quick start

# Home — the desk. Never-sync. No project required.
xlii scratch              # ephemeral session from $HOME
xlii scratch --tui        # same, full-screen TUI
xlii scratch --tauri      # the desktop face (throne)

# Enter a folder when you mean a real project
xlii init --local         # this directory becomes a room
xlii code                 # lab in that folder (prompts to init if needed)
xlii code . --tui

# Talk-only (iXaac without the desk — not a third home)
xlii chat                 # chat costume (iXaac). Jobs are /role
xlii chat --new ada       # another island (chat/ada), not another Home

Inside a session:

• [M] / talk — mojo. [$] / lab — shell; ? asks the coder (not mojo).
• On the TUI/REPL, bare input in the lab is the shell (ls, cd, pytest).
• /help, /commands, /tools for discovery.
• /exit or /quit to leave.

Home stays never-sync. A folder gets a Collection only when you xlii init (without --local). Other personas live in chat/<name> rooms.

The REPL model

The primary surface is deliberately a shell-first REPL:

Input prefix	Meaning
(none)	Shell command (passthrough, full TTY for vim, less, etc.)
?text	Send to the agent as a task
!cmd	One-off shell escape (styled capture when enabled)
!!cmd	Raw inherited-TTY shell escape
/<cmd> [args]	Slash command (see below)

History, project memory, and attachments persist across restarts for the same project/persona.

Core concepts

Projects

• Any directory can be an xlii project: xlii init or xlii code --init (or the launch gate).
• State lives in .xlii/ (project.json, turns/, repl_history, session.json, manifest, wiki/, journal/, inbox/, etc.). Local disk is source of truth.
• xlii sync (or auto) mirrors files + metadata into an xAI Collection. search_project gives the agent hybrid RAG.
• --local / local-only projects skip Collections entirely (great for private trees).
• .xliiignore (pathspec) and extra ignores in project.json control what gets indexed.

Sessions & profiles

• Home is not a project. Lab on the desk is /sh · explain · /ops (the machine is the job). It is not a second journal.
• A folder: lab memory and RAG live in that room’s .xlii/turns.
• mojo: talk memory (~/.xlii/chat/mojo/). Walks into folders; ambient there is that folder’s wiki/journal, not a new persona.
• Other personas are other rooms (chat/<name>), not other Homes.
• Episodes: xlii code --keep-session snapshots the full lab conversation in a folder. /session off clears it.

Knowledge you own (plain files)

Everything that makes the AI yours is editable text:

• Personas — ~/.xlii/personas/<name>.md (frontmatter + system prompt). /persona, /chat.
• Docs — reference material attached with /doc or via loadouts. Managed with xlii doc.
• Plugins — declarative HTTP API descriptors (markdown). Invoke via /get or agent tool plugin_get. xlii plugin, stock plugins included.
• Roles — packaged behavior (e.g. code-architect). xlii role.
• Skills — reusable methods (often using parallel subagents). E.g. grounded-analysis.
• Project commands — add /<name> commands by dropping .xlii/commands.py or .xlii/commands/.
• Custom agent tools — .xlii/tools.py exporting via get_tools().

Agent & tools

The orchestrator agent (Grok by default) loops with tool use until it stops. Core built-in tools include:

• File: read_file, write_file, edit_file
• Navigation: list_dir, glob, grep
• Execution: bash (requires honest intent: read-only / modifies-project / modifies-system / network)
• Search: search_project (RAG), web_search, x_search
• Plugins: plugin_search, plugin_get, plugin_call
• Subagents: dispatch_subagent (parallel workers with restricted tools; used by roles/skills/loops)
• Others: code_execute, etc.

Tool gating, auto-approve, yolo mode, and per-intent confirmation protect the user.

Safety & workflow surfaces

• Rail (--rail, /rail): 6-stage gated flow (Requirements → Architecture → Edge Cases → Pseudocode → Implementation → Self-Review). Writes locked until late stages.
• Plan mode (/plan): investigation only; produces numbered plan. /execute to act.
• Discovery (--discovery): read-only research & explanation.
• Ops (--ops): OS diagnostics with platform-correct probes.
• Loop (xlii loop, /loop): autonomous build→test→fix until judge green. Multiple judges (shell tests, LLM, CI), optional parallel writers in git worktrees, collusion detection, merge strategies.
• Verify / peer / consult: cold-context verification, blind review, cross-vendor second opinion.
• Workers are strictly read-only.

Other surfaces

• Wiki (xlii wiki, /wiki): per-project semantic memory pages (list/show/new/verify/rm). Sources tracked.
• Journal (/journal): project shadow + per-persona journals. Can archive to dedicated Collections.
• Tasks (/tasks): pipeline workflow.
• Jobs (/jobs): background job surface.
• VFS (xlii ls/cat/..., conv://... addresses): uniform addressing for conversations, turns, etc.
• Remote FS (xlii ftp, ftp:// provider in tools).
• Artifacts (xlii artifact image): xAI Imagine generation.
• MCP (xlii mcp deep-contexts): expose project/workspace to external tools (Grok Build TUI integration).
• Inbox (xlii serve-inbox): webhook → .xlii/inbox/ for external triggers.
• Web (xlii serve): the full TUI in a browser tab via textual-serve — one session per tab; NO AUTH on localhost/tailnet (the port is a shell). xlii serve --public keeps the bind on loopback and puts a pairing-code gate + Caddy TLS in front — see GUIDE · Public serve posture.
• Export/Import: move your entire curated world (personas + memory + docs + plugins) between machines without secrets.
• TUI: optional full-screen experience with transcript, panes (explorer, git, tasks, wiki, image, dock, etc.), input chrome, themes, image preview (sixel/kitty/iterm).

CLI commands (selected)

Top-level verbs (many also have subcommands):

Project lifecycle

• init, new, projects, find, sync, status, gc, project rm
• scratch (ephemeral scratch space)

Sessions

• code [target] [--tui] [--rail] [--discovery] [--ops] [--preview] [--init]
• chat [name] [--tui] [--new] [--list] [--edit]
• ask <prompt> (one-shot headless)
• loop <goal> (autonomous; --status, --resume, judges, swarm, etc.)

Knowledge & content

• plugin, doc, export, import
• role
• wiki

VFS & remote

• ls, cat, cp, mv, rm, mkdir, stat (operate on conv://, file://, project paths, etc.)
• ftp add|list|rm|test|publish (FTP/FTPS/SFTP remotes)

Other

• account, artifact image
• setup, config, bootstrap, keys, models, auth
• journal, notify, daemon, mcp, serve-inbox
• help, doctor

Inside the REPL there are dozens more: /attach, /browse, /checkpoint, /compact, /consult, /delegate, /edithere, /file-tab, /git, /howto, /imagine, /jobs, /loadout, /locker, /plan, /nfo, /replay, /verify, /scratch, /send, /skill, /code, /tasks, /theme, and many more. Use /commands and /apropos to explore.

Extensibility highlights

• Project commands: .xlii/commands.py (or .xlii/commands/*.py) → user /<name> slash commands.
• Agent tools: .xlii/tools.py exporting get_tools() → new tools the agent can call (parallel to builtins).
• Skills, roles, personas, and plugins are all versionable markdown + YAML frontmatter.
• Plugins require no running servers for typical HTTP cases.
• Hooks system, MCP servers, and full xlii.* Python API for advanced use.
• Built-in harnesses (xlii/harness/) for running the same task across agents (Grok Build, Claude, Cursor, etc.) for comparison.
• Ships with stock plugins, roles, a grounded-analysis skill, and mojo (the mobile journal). The CLI/substrate is xlii.

See examples/, stock_*/*, and the .xlii/ dir created on init. The in-session /commands reload and docgen surfaces make iteration fast.

Configuration & environment

• Global: ~/.config/xlii/config.json (or XLII_CONFIG_DIR)
• Per-project: .xlii/project.json, turns/, session state, repl_history, manifest, etc.
• Management key is env-only for safety.
• Many XLII_* overrides (see xlii doctor or reference material in docs/).
• Prompt cache uses stable per-project conversation IDs.

Status

Alpha (as of 2026). End-to-end functional against real xAI accounts. Architecture largely stable; surfaces and details continue to evolve. Extensive test suite lives in tests/. Historical design proposals are archived out of the public tree.

xlii --version, xlii help, xlii doctor, and in-session /help are your friends.

Want to help after cloning the public tree? Email join@xlii.computer (interest only — not a help desk).

BTC donations (optional): bc1qvkc756tdgqsnwsxn8cmrkhk7hz5l622mnhmchr

License

See LICENSE.

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Built as a complement to (and bridge for) Grok Build and similar surfaces. Local files + your curation first; remote primitives second.