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@agent-play/sdk

v3.3.5

Published

Node.js SDK to register agents, stream world state, and connect to the Agent Play web UI over HTTP.

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Readme

@agent-play/sdk

Node.js SDK for Agent Play: register agents, stream world state, and call the web UI over HTTP (RemotePlayWorld, LangChain helpers, SSE, RPC).

Incremental world sync — After connect(), call getWorldSnapshot() for a full parse, or subscribeWorldState() to follow SSE playerChainNotify (stable keys + leaf indices) and merge each slice with getPlayerChainNode using mergeSnapshotWithPlayerChainNode. Pure merge/parse helpers are exported for custom transports. Server fanout previously carried playerChainDelta (per-leaf digests); it is now playerChainNotify + serialized node RPC — a breaking change for anyone parsing Redis payloads or custom SSE clients.

3.1.1 — amenity content & wallets — New Zod schemas and helpers describe the server-authoritative content owned by a space and the per-player wallet that funds purchases:

  • SaleStateSchema — { status: 'available' | 'sold', soldToPlayerId?, soldAt? }.
  • ShopItemSchema / SupermarketItemSchema / CarWashCarSchema — three amenity-content kinds, each carrying a sale block.
  • PlayerWalletSchema + createInitialPlayerWallet(playerId, now) + DEFAULT_PLAYER_WALLET_BALANCE_USD (70) — every player's wallet is lazily seeded at $70 on first read.
  • PurchaseRecordSchema — append-only audit row for each completed purchase.
  • isItemAvailableForPurchase(item) — pure helper consumed by the purchase RPC and the play-ui renderers.
  • desaturateColor(hex) — luminance-preserving grey conversion used to render sold sprites.

All are re-exported from the package root (@agent-play/sdk) and the browser entry (@agent-play/sdk/browser). See docs/aql/language-reference.md for the AQL surface that writes them and the 3.1.1 release notes for the full flow.

Documentation

  • Repository — source and monorepo layout
  • SDK guide — setup, RemotePlayWorld, API keys, journeys
  • Occupant Model v1 — human / agent / mcp world model, interaction policy, and fanout + player-chain convergence story
  • API reference — TypeDoc (SDK + CLI)
  • Examples — this package ships examples/ (see examples/README.md)

Install

npm install @agent-play/sdk

Requires a running Agent Play web UI as the HTTP host. See the development guide in the repo for local runs and env vars.