Tool tree

grenz-webmcp.netlify.app

Developer ToolsTools verifiedOct 26, 2026

A WebMCP demo: a smart home an AI agent can run — under a deny-by-default policy, with human approval, argument constraints and a live audit timeline.

get_house_stateAnswer

Read the current state of every device: lights, thermostat, door lock, alarm and active scene.

View tool JSON

{
  "name": "get_house_state",
  "kind": "answer",
  "impl": "imperative",
  "description": "Read the current state of every device: lights, thermostat, door lock, alarm and active scene.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  }
}

get_doorbell_eventsAnswer

Read today's intercom log from the front door: who called, when, and what they said.

View tool JSON

{
  "name": "get_doorbell_events",
  "kind": "answer",
  "impl": "imperative",
  "description": "Read today's intercom log from the front door: who called, when, and what they said.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  }
}

set_thermostatAction

Set the target temperature, in degrees Celsius.

View tool JSON

{
  "name": "set_thermostat",
  "kind": "act",
  "impl": "imperative",
  "description": "Set the target temperature, in degrees Celsius.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "targetC": {
        "type": "number",
        "description": "Target temperature, 10-30 °C"
      }
    },
    "required": [
      "targetC"
    ]
  }
}

toggle_lightAction

Turn one light on or off. Omit `on` to flip whatever it currently is.

View tool JSON

{
  "name": "toggle_light",
  "kind": "act",
  "impl": "imperative",
  "description": "Turn one light on or off. Omit `on` to flip whatever it currently is.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "lightId": {
        "type": "string",
        "description": "porch, living, kitchen, bedroom or hall"
      },
      "on": {
        "type": "boolean",
        "description": "Desired state; omitted means flip"
      }
    },
    "required": [
      "lightId"
    ]
  }
}

set_ovenAction

Start the oven at a temperature, for a number of minutes. Refuses while the house is set to Away.

View tool JSON

{
  "name": "set_oven",
  "kind": "act",
  "impl": "imperative",
  "description": "Start the oven at a temperature, for a number of minutes. Refuses while the house is set to Away.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "targetC": {
        "type": "number",
        "description": "Oven temperature, 50-220 °C"
      },
      "minutes": {
        "type": "number",
        "description": "How long to run for, 1-45"
      }
    },
    "required": [
      "targetC",
      "minutes"
    ]
  }
}

set_sceneAction

Apply a lighting and temperature scene: home, away, movie or goodnight.

View tool JSON

{
  "name": "set_scene",
  "kind": "act",
  "impl": "imperative",
  "description": "Apply a lighting and temperature scene: home, away, movie or goodnight.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "scene": {
        "type": "string",
        "description": "home, away, movie or goodnight"
      }
    },
    "required": [
      "scene"
    ]
  }
}

lock_doorAction

Lock the front door. Always safe; locking never needs permission.

View tool JSON

{
  "name": "lock_door",
  "kind": "act",
  "impl": "imperative",
  "description": "Lock the front door. Always safe; locking never needs permission.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "doorId": {
        "type": "string"
      }
    }
  }
}

unlock_doorAction

Unlock the front door. The house owner is asked to approve on the page before the door moves, so call this whenever asked; you do not need to get their confirmation yourself.

View tool JSON

{
  "name": "unlock_door",
  "kind": "act",
  "impl": "imperative",
  "description": "Unlock the front door. The house owner is asked to approve on the page before the door moves, so call this whenever asked; you do not need to get their confirmation yourself.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "doorId": {
        "type": "string",
        "description": "front or back"
      }
    },
    "required": [
      "doorId"
    ]
  }
}

disarm_alarmAction

Disarm the burglar alarm.

View tool JSON

{
  "name": "disarm_alarm",
  "kind": "act",
  "impl": "imperative",
  "description": "Disarm the burglar alarm.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  }
}

grant_permanent_accessAction

Give a named person or company standing access to this home.

View tool JSON

{
  "name": "grant_permanent_access",
  "kind": "act",
  "impl": "imperative",
  "description": "Give a named person or company standing access to this home.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "who": {
        "type": "string",
        "description": "Who to admit, permanently"
      }
    },
    "required": [
      "who"
    ]
  }
}