packages / surprisal-pi-hyperchart
extension Modes & workflows

@surprisal/pi-hyperchart

Pi extension and React inspector for Hyperchart workflows

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Install

$ pi install npm:@surprisal/pi-hyperchart

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 0.4.1. 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.
  • 📡
    Extension bus — Talks to other extensions Uses pi.events to emit or listen on a shared channel, so it can coordinate with — or be driven by — other installed extensions.
  • Commands — Runs shell commands Spawns processes on your machine.
  • 📁
    Files — Reads files outside your project Touches paths beyond the working directory, such as your home folder.
  • 🔧
    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.

Tools registered hyperchart

Events subscribed agent_settledbefore_agent_starthyperchart:commandsession_shutdownsession_start

APIs called events.onregisterCommandregisterToolsessionManager.getSessionId

1 call the source scan did not predict

events.on

Reached through a value the scan could not follow — passed as an argument, stored on another object, or returned by a helper.

Run against version 0.4.1 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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