packages / upstash-box-pi
extension Guards & policy

@upstash/box-pi

Pi coding agent extension that runs all tool calls inside a remote Upstash Box sandbox while the agent runs locally

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Install

$ pi install npm:@upstash/box-pi

Installs from npm into ~/.pi/agent/. Add -l for project-local (.pi/). Manage with pi list / pi update / pi remove.

What this package can reach

Detected automatically from the source at version 0.1.3. This describes access, not safety — you decide whether it's appropriate for what the package claims to do.

  • 🤖
    Behavior — Changes how the agent thinks Modifies the system prompt, injects messages, or rewrites conversation context.
  • ⚡
    Commands — Runs shell commands Spawns processes on your machine.
  • 🔑
    Credentials — Handles your API keys Reads or passes provider credentials. Highest-trust capability there is.
  • ⇄
    Intercepts tools — Can block or rewrite tool calls Subscribes to tool_call/tool_result/input. Can change a command after you approved the one displayed.
  • 🔧
    New tools — Adds model-callable tools Gives the agent new abilities. Additive and visible, unlike an override.
  • ▤
    UI — Draws its own interface Renders widgets, footers, dialogs or full-screen views.

What it actually did when run

observed

Loaded in a sandbox with no network, a read-only filesystem and a recording stand-in for pi's API. This is what it called — not what the source suggests it might.

Replaces pi's built-in tools: bash, read, write, edit, grep. Every use of those tools goes through this package instead of pi.

Tools registered bashreadwriteeditlsfindgreppreview_url

Events subscribed agent_endbefore_agent_startsession_shutdownsession_startuser_bash

APIs called getFlagregisterCommandregisterFlagregisterToolui.notify

Run against version 0.1.3 on 2026-08-02. Registration-time behaviour under default settings; other configurations may differ.

▲ Review before you install. pi packages run with your full system permissions. Check the source, pin versions, and prefer authors you trust.

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