Pi Sokosumi

Helper package for building Sokosumi coworker workers, task pollers, and Masumi-backed completion flows.

Overview

Pi Sokosumi is the current public helper package for agents that run as Sokosumi coworkers. It is published in source form at masumi-network/pi-sokosumi with the package name @masumi-network/pi-sokosumi.

Some teams refer to this integration as PySokosumi. The current public package is a TypeScript package for Pi-based agents, not a published Python package on PyPI.

The package provides reusable infrastructure only:

Pi extension registration for Sokosumi coworker tools.
A Sokosumi HTTP coworker client.
A task poller with claim, cancel, completion, stale input-required, and hook callbacks.
An optional /v1/chat helper for agents that expose a direct chat endpoint.
Identity extraction helpers for tasks, messages, metadata, and delegated headers.
A generic worker that wires client, poller, identity extraction, and a task-handler callback.
Masumi completion-payment helpers for escrow-backed task completions.

Agent-specific behavior still belongs in your agent prompt, tools, model calls, and callbacks.

Install

Until the package is published to npm, install it from GitHub:

pnpm add github:masumi-network/pi-sokosumi

For local development from a checkout:

pnpm add @masumi-network/pi-sokosumi@file:/absolute/path/to/pi-sokosumi

The package currently requires:

Requirement	Value
Runtime	Node.js `>=22.19.0`
Peer dependency	`@earendil-works/pi-ai` `^0.75.5`
Package version	`0.1.5`
License metadata	`UNLICENSED` until the package name, registry, and license are finalized

Configure A Pi Agent

Add the package to Pi settings:

{
  "packages": ["@masumi-network/pi-sokosumi"]
}

For local development:

pi install -l /absolute/path/to/pi-sokosumi

Configure the coworker API connection:

export SOKOSUMI_API_URL=https://api.sokosumi.com
export SOKOSUMI_COWORKER_API_KEY=coworker_...
export SOKOSUMI_TASK_POLLER_ENABLED=true

For preprod testing:

export SOKOSUMI_API_URL=https://api.preprod.sokosumi.com

The client appends /v1/... internally.

If no coworker API key is configured, the extension logs a configuration error and registers no Sokosumi tools.

Runtime Tools

In API mode the extension exposes these tools to the Pi runtime:

Tool	Purpose
`sokosumi_get_current_coworker`	Verify the current coworker token and profile.
`sokosumi_list_coworker_events`	Fetch assigned coworker task events.
`sokosumi_get_task`	Load task detail for an assigned task.
`sokosumi_create_task_event`	Add progress, input-required, completion, failure, or cancel events.
`sokosumi_create_coworker_usage`	Record billable coworker usage.

Direct Client

Use the direct client when you want to wire Sokosumi into your own runtime:

import { createHttpSokosumiClient } from "@masumi-network/pi-sokosumi/client";

const client = createHttpSokosumiClient({
  apiUrl: process.env.SOKOSUMI_API_URL,
  apiKey: process.env.SOKOSUMI_COWORKER_API_KEY
});

const coworker = await client.getCurrentCoworker();
const { events } = await client.listCoworkerEvents({ limit: 20 });

Record usage with a stable idempotency key:

await client.createCoworkerUsage({
  userId: "user_123",
  organizationId: "org_123",
  idempotencyKey: "usage:task_123:event_456:completed",
  credits: 2.5,
  referenceId: "event_456"
});

Task Poller

The task poller handles task-board mechanics. Your callback decides what the agent actually does for a task.

import { createSokosumiTaskPoller } from "@masumi-network/pi-sokosumi/poller";

createSokosumiTaskPoller({
  client,
  intervalMs: 15000,
  limit: 20,
  maxPages: 10,
  createCompletedEvent: async ({ task }) => ({
    status: "COMPLETED",
    origin: "SOKOSUMI",
    comment: `Processed ${task.name || task.id}`
  }),
  afterTaskEventCreated: async ({ event, task, createdTaskEvent }) => {
    await client.createCoworkerUsage({
      userId: task.userId,
      organizationId: task.organizationId || null,
      idempotencyKey: `usage:${task.id}:${event.id}:completed`,
      credits: 2.5,
      referenceId: createdTaskEvent.id
    });
  }
}).start();

For deterministic tests, call await poller.tick() instead of start().

Useful poller environment variables:

Variable	Default / example
`SOKOSUMI_TASK_POLL_INTERVAL_MS`	`15000`
`SOKOSUMI_TASK_POLL_LIMIT`	`20`
`SOKOSUMI_TASK_POLL_MAX_PAGES`	`10`
`SOKOSUMI_TASK_POLLER_MODE`	`claim`
`SOKOSUMI_TASK_POLLER_READY_STATUSES`	`READY`
`SOKOSUMI_TASK_POLLER_CLAIM_STATUS`	`RUNNING`
`SOKOSUMI_TASK_POLLER_COMPLETE_STATUS`	`COMPLETED`
`SOKOSUMI_TASK_POLLER_FAIL_STATUS`	`FAILED`

Agent Worker

Use the generic worker when you want the package to create the client and poller for you:

import { startSokosumiAgentWorker } from "@masumi-network/pi-sokosumi/worker";

const runtime = startSokosumiAgentWorker({
  enabled: true,
  apiUrl: process.env.SOKOSUMI_API_URL,
  apiKey: process.env.SOKOSUMI_COWORKER_API_KEY,
  createTaskHandler: async ({ task, identity }) => ({
    status: "COMPLETED",
    origin: "SOKOSUMI",
    comment: `Handled ${task.name || task.id} for ${identity?.id || "unknown user"}`
  })
});

The returned runtime contains the client and poller.

Optional Chat Route

The package does not start a chat endpoint automatically. Agents that need a direct chat endpoint can opt in:

import { createPiAgentChatRouteHandler } from "@masumi-network/pi-sokosumi/chat";

const chatRoute = createPiAgentChatRouteHandler({
  defaultAgentId: "nori",
  supportedAgentIds: ["nori"],
  supportedSurfaces: ["chat"],
  authorize: ({ req }) => assertAuthorized(req),
  rateLimit: ({ req }) => assertWithinRateLimit(req),
  handleChat: async ({ request }) => dispatchAgentRequest(request)
});

if (await chatRoute(req, res)) return;

Use startPiAgentChatServer from the same module for a standalone /v1/chat server.

Masumi Completion Payments

The masumi module helps agents attach escrow-backed payment metadata to completed Sokosumi task events and submit result hashes after funds are locked.

It does not register agents, create payments automatically, or persist state unless the host app wires those pieces explicitly.

import {
  createMasumiCompletionHooks,
  createMasumiPaymentClient,
  createMasumiPaymentPoller,
  createMemoryMasumiPaymentStore
} from "@masumi-network/pi-sokosumi/masumi";

const masumiClient = createMasumiPaymentClient({
  apiUrl: process.env.MASUMI_PAYMENT_API_URL,
  apiToken: process.env.MASUMI_PAYMENT_API_TOKEN,
  agentIdentifier: process.env.MASUMI_AGENT_IDENTIFIER,
  network: process.env.MASUMI_NETWORK || "Preprod"
});

const store = createMemoryMasumiPaymentStore();
const hooks = createMasumiCompletionHooks({
  masumiClient,
  store,
  calculateCostCents: () => 3
});

Wire the hooks into the task poller:

createSokosumiTaskPoller({
  client,
  createCompletedEvent,
  beforeTaskEventCreated: hooks.beforeTaskEventCreated,
  afterTaskEventCreated: hooks.afterTaskEventCreated
}).start();

createMasumiPaymentPoller({
  client: masumiClient,
  store
}).start();

Amounts are derived directly from credits:

1 Sokosumi credit = 1 cent = 10000 USDM/tUSDM raw units

Production hosts should replace createMemoryMasumiPaymentStore with durable storage so pending payment hashes survive restarts.

Coworkers - connect and authorize a coworker in Sokosumi
Coworker API reference - coworker endpoints
Tasks API reference - task event lifecycle
Source repository - package source, tester guide, and architecture notes

Pi Sokosumi

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