Skill

render-template

Render a Home Assistant Jinja2 template. Use when the user wants to test template expressions, debug automation conditions, or evaluate sensor value transformations.

Install

npx claudepluginhub cameri/claude-skills --plugin home-assistant

Tool Access

This skill is limited to using the following tools:

ReadBash(source *)Bash(http *)

Preview

SKILL.md

Similar Skills

dispatching-parallel-agents

Dispatches parallel agents to independently tackle 2+ tasks like separate test failures or subsystems without shared state or dependencies.

superpowers

158.9k

writing-skills

6 files

Guides TDD-style skill creation: pressure scenarios as tests, baseline agent failures, write docs to enforce compliance, verify with RED-GREEN-REFACTOR.

superpowers

158.9k

brainstorming

7 files

Guides idea refinement into designs: explores context, asks questions one-by-one, proposes approaches, presents sections for approval, writes/review specs before coding.

superpowers

158.9k

Stats

Parent Repo Stars0

Parent Repo Forks0

Last CommitMar 28, 2026

Actions

View Source View Plugin View on GitHub View README

/home-assistant:render-template "{{ states('sensor.temperature') }}" /home-assistant:render-template "{{ states('light.living_room') == 'on' }}" /home-assistant:render-template "{{ state_attr('climate.thermostat', 'current_temperature') }}"

Function

Description

states('entity_id')

Current state value

is_state('entity_id', 'value')

Boolean state check

state_attr('entity_id', 'attr')

Get an attribute

now()

Current datetime

as_timestamp(state)

Convert to Unix timestamp

float(value, default)

Cast to float with fallback

int(value, default)

Cast to int with fallback

<objective> Renders a Jinja2 template via `POST /api/template` and returns the evaluated output. Supports all HA template functions including `states()`, `is_state()`, `state_attr()`, etc. </objective>

<quick_start>

/home-assistant:render-template "{{ states('sensor.temperature') }}"
/home-assistant:render-template "{{ states('light.living_room') == 'on' }}"
/home-assistant:render-template "{{ state_attr('climate.thermostat', 'current_temperature') }}"

</quick_start>

<context> Load credentials before every call: ```bash source ~/.claude/channels/home-assistant/.env ``` If `.env` is missing or `HA_URL`/`HA_TOKEN` are not set, tell the user to run `/home-assistant:access` first. </context> <workflow> Parse `$ARGUMENTS`: - Everything in `$ARGUMENTS` is the template string (required). - If the user didn't quote it, reconstruct the full string from all args.

httpie call:

http --ignore-stdin -b POST "${HA_URL%/}/api/template" \
  "Authorization: Bearer $HA_TOKEN" \
  template="<template_string>"

Display result:

The API returns plain text — the rendered output of the template.
Show: Template: <input> then Result: <output>
If error (400): HA returns the Jinja2 error — display it and suggest fixing the template syntax.

Common HA template functions to remind the user:

Function	Description
`states('entity_id')`	Current state value
`is_state('entity_id', 'value')`	Boolean state check
`state_attr('entity_id', 'attr')`	Get an attribute
`now()`	Current datetime
`as_timestamp(state)`	Convert to Unix timestamp
`float(value, default)`	Cast to float with fallback
`int(value, default)`	Cast to int with fallback

</workflow>

<success_criteria>

Template rendered and output displayed
Input template echoed alongside output for clarity
Jinja2 errors surfaced with the raw HA error message </success_criteria>