Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/joshsymonds/nix-confignpx agentmods add skills/joshsymonds/nix-config/home-assistantWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/joshsymonds/nix-config/home-assistant)<a href="https://agentmods.dev/skills/joshsymonds/nix-config/home-assistant"><img src="https://agentmods.dev/badge/skills/joshsymonds/nix-config/home-assistant/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/joshsymonds/nix-config/home-assistant"><img src="https://agentmods.dev/badge/skills/joshsymonds/nix-config/home-assistant.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.00714 |
| Opus 5 | $0.00017 | $0.00357 |
| Sonnet 5 | $0.00007 | $0.00143 |
| Haiku 4.5 | $0.00003 | $0.00071 |
Grade A, and why
configuring-home-assistant scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Home Assistant Configuration
Dashboard Workflow
Dashboards use YAML mode (not UI storage). Edit YAML files directly, then run update to deploy. UI-based editing will NOT work - changes would be overwritten on rebuild.
Common Mistakes
| Wrong | Right |
|---|---|
| Editing dashboards in HA UI | Edit YAML files, run update |
Using standard light card |
Use custom:bubble-card with button_type: slider |
| Duplicating styles inline | Use YAML anchors from cards/templates.yaml |
hass-cli state list # List all entities
hass-cli state get <entity_id> # Get entity details
hass-cli service call <service> # Call a service
Token: ~/.config/home-assistant/token
Bubble Cards Patterns
All cards use custom:bubble-card. Common patterns:
Light Slider Button
type: custom:bubble-card
card_type: button
button_type: slider
entity: light.room_name
name: Room Name
icon: mdi:lamp
show_state: true
show_attribute: true
attribute: brightness
slider_live_update: true
allow_light_slider_to_0: false
card_layout: large
Sub-Buttons with Conditional Styling
sub_button:
- entity: binary_sensor.door
show_background: true
styles: |-
.bubble-sub-button {
{% if is_state('binary_sensor.door', 'on') %}
background-color: rgba(239, 83, 80, 0.3) !important;
{% else %}
background-color: rgba(76, 175, 80, 0.3) !important;
{% endif %}
}
Popup Navigation
- icon: mdi:dots-horizontal
show_background: true
tap_action:
action: fire-dom-event
browser_mod:
service: browser_mod.popup
data:
title: Room Name
content: !include ../../popup-content/room.yaml
Popup Base Settings
card_type: pop-up
back_open: false
close_by_clicking_outside: true
bg_opacity: '88'
bg_blur: '14'
width_desktop: 540px
auto_close: 60000
show_header: true
YAML Anchors
Use anchors in cards/templates.yaml for reusable patterns:
&door_sensor_styles- Red/green conditional door status&water_sensor_styles- Leak sensor with pulse animation&light_slider_options- Standard light slider config&popup_base- Common popup settings
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 108 lines · 34 tokens per session scan A bf393cd3bc86
configuring-home-assistant is a skill published in the GitHub repository joshsymonds/nix-config (836 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 714 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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