This package is the contract layer. It defines the durable shapes for homes, devices, rooms, agents, automations, tools, approvals, audit receipts, dashboards, and typed hub requests. It contains no runtime business logic, which makes it safe to import from hubs, CLIs, browser apps, automation files, tests, and integration packages.

Issue Reporting and Security

For reporting bugs, issues, or security vulnerabilities, please visit community.foss.global/. This is the central community hub for all issue reporting. Developers who sign and comply with our contribution agreement and go through identification can also get a code.foss.global/ account to submit Pull Requests directly.

Install

pnpm add @smarthome.exchange/interfaces

Import Pattern

import type { data, request } from '@smarthome.exchange/interfaces';

const device: data.IDeviceDefinition = {
  id: 'light.living.floor',
  name: 'Living Floor Lamp',
  protocol: 'hue',
  online: true,
  features: [
    {
      id: 'power',
      capability: 'light',
      name: 'Power',
      readable: true,
      writable: true,
    },
  ],
  state: [
    {
      featureId: 'power',
      value: true,
      updatedAt: new Date().toISOString(),
    },
  ],
};

type SnapshotResponse = request.IReq_GetHomeSnapshot['response'];

Public Surface

The package exports two namespaces from the root entry point:

Namespace	What it contains
`data`	Durable domain objects such as `IDeviceDefinition`, `IAgentDefinition`, `IToolPlan`, `IApprovalRequest`, and `IHomeSnapshot`.
`request`	TypedRequest contracts such as `IReq_ListDevices`, `IReq_ExecuteToolPlan`, and `IReq_SubmitApproval`.

Data Contracts

Core groups include:

Home state: IHomeDefinition, IHomeMember, IHomeSnapshot.
Devices and rooms: IDeviceDefinition, IDeviceFeature, IDeviceState, IRoomDefinition.
Agents: IAgentDefinition, IAgentStatus, IAgentReasoningEvent.
Tools and approvals: IToolDefinition, IToolCall, IToolPlan, IToolPlanResult, IApprovalRequest.
Automations: IAutomationDefinition, IAutomationTrigger, IAutomationRun.
Dashboards and audit: IDashboardDefinition, IDashboardWidget, IAuditReceipt.

Device protocols are explicit string unions such as matter, zigbee, thread, mqtt, homeassistant, hue, http, cloud, and virtual. Tool scopes are equally explicit, including device.read, device.write, light.write, climate.write, approval.write, and *.read.

TypedRequest Contracts

The request namespace defines the hub API boundary:

Method	Contract	Purpose
`getHomeSnapshot`	`IReq_GetHomeSnapshot`	Return the complete home snapshot.
`listDevices`	`IReq_ListDevices`	List devices, optionally filtered by room/capability/online state.
`listAgents`	`IReq_ListAgents`	List agents and runtime statuses.
`listTools`	`IReq_ListTools`	List available tools, optionally by owner.
`executeToolPlan`	`IReq_ExecuteToolPlan`	Execute, queue, or suggest a typed tool plan.
`listApprovals`	`IReq_ListApprovals`	Query approval requests by status.
`submitApproval`	`IReq_SubmitApproval`	Approve or reject a pending approval.

Every request interface carries a literal method, a typed request, and a typed response, so API clients and hub handlers stay in lockstep.

Scripts

pnpm test
pnpm build
pnpm buildDocs

License and Legal Information

This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the LICENSE file.

Please note: The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

Trademarks

This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.

Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.

readme.md

@smarthome.exchange/interfaces