4fu

Route pi's shell, directory listing, and search tasks through PowerShell 7 on Windows

Shared background-task notification coordination for @4fu Pi extensions

The optional semantic search channel: event text embedded and searched by meaning with zvec, an embedded vector database.

Every replaceable interface in arbor, and the core's own shapes.

Typed prompt blocks, the one deterministic renderer, the replaceable Chinese text table and the system prompt sections.

The entry points: direct tools, code mode modules and the one tool catalog that routes both through the service layer.

The HTTP test channel plugin: a webhook in, sends out, and a page that drives the whole host.

The default Supervisor: one host process per service, restarted with backoff after a crash, with logs and state changes reported to the host.

The plain-directory Workspace: one directory per window, with a continuation working in its predecessor's directory in place, plus the persistent directories a window asks to keep.

The default NoteStore: one copy of every note, checked writes, revisions, anchors, the active set and search on SQLite beside the journal: lexical, and semantic when the optional channel is installed.

The service layer for one window: lifecycle, prompt epochs, reminders, continuations, the board, the effect queue and restart recovery.

The ovnfs Workspace: one shared folder every window reads, with per-window copy-on-write checkouts the model opens, works in and applies back (docs/workspaces.md).

Temporary package placeholder for staged publishing

Detect installed modern Unix-tool replacements (rg, fd, sd, ...) once per session and inject a single stable line into pi's system prompt

Execute Python code in pi as persistent background tasks