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SKILL verified MIT Self-run

Mcp Hass

skill-aahl-skills-mcp-hass · by aahl

The skill for control Home Assistant smart home devices and query states using MCP protocol.

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Install

$ agentstack add skill-aahl-skills-mcp-hass

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

Home Assistant

Control Home Assistant smart home and query states using MCP protocol.

Prerequisites

Enable MCP server in Home Assistant:

  • Browse to your Home Assistant instance.
  • Go to Settings > Devices & services.
  • In the bottom right corner, select the + Add Integration button.
  • From the list, select Model Context Protocol.
  • Follow the instructions on screen to complete the setup.

Config

When prompted that the MCP server does not exist, remind the user to configure the HASS_BASE_URL and HASS_ACCESS_TOKEN environment variables by executing the following command to add the configuration:

npx -y mcporter config add home-assistant \
  --transport http \
  --url "${HASS_BASE_URL:-http://homeassistant.local:8123}/api/mcp" \
  --header "Authorization=Bearer \${HASS_ACCESS_TOKEN}"

Usage

# Get states
npx -y mcporter call home-assistant.GetLiveContext

# Turn on the device
npx -y mcporter call home-assistant.HassTurnOn(name: "Bedroom Light")
npx -y mcporter call home-assistant.HassTurnOn(name: "Light", area: "Bedroom")

# Turn off the device
npx -y mcporter call home-assistant.HassTurnOff(name: "Bedroom Light")
npx -y mcporter call home-assistant.HassTurnOff(area: "Bedroom", domain: ["light"])

# Control light
# brightness: The percentage of the light, where 0 is off and 100 is fully lit.
# color: Name of color
npx -y mcporter call home-assistant.HassLightSet(name: "Bedroom Light", brightness: 50)

# Control fan
# percentage: The percentage of the fan, where 0 is off and 100 is full speed.
npx -y mcporter call home-assistant.HassFanSetSpeed(name: "Fan", area: "Bedroom", percentage: 80)

Execute the following command to learn about specific usage methods:

  • npx -y mcporter list home-assistant --schema --all-parameters

About mcporter

  • To improve compatibility, use npx -y mcporter instead of mcporter when executing commands.
  • https://github.com/steipete/mcporter/raw/refs/heads/main/docs/call-syntax.md
  • https://github.com/steipete/mcporter/raw/refs/heads/main/docs/cli-reference.md

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

  • Author: aahl
  • Source: aahl/skills
  • License: MIT
  • Homepage: https://skills.sh/aahl/skills

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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