p2 rewritten by the Chord v2 authoring rules (decision "App authoring rules confirmed
by the p2 audit"), in four parts merged together:
- core: session lifecycle (relocate, clone, fork, archive) and search rebuild are
persisted jobs on a new server store; Sessions v6 with client-chosen ids and visible
operations; Retry answers with the worker's real outcome; workers push branch,
subagent and status state to the server; roots take the method's ctx.
- services: models, envs, ports, login, mcp, logs, sharing and voice follow external
state (self.follow, followNative) instead of copy loops; methods answer after their
state commits; presence from host.references.
- chat: chat mode, artifacts and prompt resources follow Durable and native state;
shell commands are Chord jobs (shellId is the requestId); status pushed before
send and stop answer; race-free draft claim.
- ui: optimistic updates on web (useOptimistic) and terminal (TuiScope.optimistic,
extended in Chord with a reducer and a pending flag), pending states for long work,
visible rollback, load waterfalls removed; merged with the one composer and
immediate first send (ccff9876e) and the folder + button (5a31a6d5f).
docs/optimistic-ui.md describes the pattern.
The agent drives the session's terminals (shared with the owner's panel) with
tools.terminal({ command, args }): new-window, list-windows, send-keys, read,
capture-pane, kill-window, with waits (quiet, exit, /regex/) and plain-text
output. The terminal host keeps each terminal's last MiB of output and the
agent's read cursor, answers calls with ids, and does keyed calls once, so the
tool is replay-safe. AgentTerminals serves the session's current worker on its
environments; archiving closes a session's terminals. Without code mode the
worker registry installs tool_search once for all deferred tools.
The artifact tool takes inline: true to also show the produced version below
its transcript card: Markdown/text rendered, HTML/SVG in the sandboxed preview
frame. Drawings fill the frame's width (an SVG with a viewBox or an absolute
size scales to it; an HTML page that is only an SVG or image too) and the frame
takes the content height the preview reports, capped at 70vh. Every viewer sees
it, guests included (owner decision). The TUI renders inline Markdown and text.
SVG previews now carry the diagnostics bridge in CDATA (its && broke the XML).
A manager on the p2 server owns every MCP connection and process. Session
workers hold one view each and lease the locations their conversations
work at; the manager runs the owner's mcp.json servers there (stdio per
session and location, or shared; HTTP shared by default) and offers their
tools as deferred Durable tools found through tool_search.
Stdio servers on an environment start through its pi-env daemon, one
connection per environment shared by its instances, through cmd.exe on
Windows. A project's .pi/mcp.json, read by the worker at each location,
may add stdio servers that run there and switch the owner's servers on or
off; the manager refuses everything else. A lease gets servers only on
environments its session works on.
p2 (Pi Mobile on Chord v2) moves from pi-private into pi as one commit. Root scripts that loop all workspaces
use --if-present; npm test, ./test.sh and the release script cover packages/* only (p2: cd apps/p2 && npm test);
sync-versions also updates apps' workspace pins.
