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Home Assistant frontend TypeScript conventions. An agent skill from home-assistant/frontend.
Install Ha Frontend Types
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install home-assistant/frontend ha-frontend-types --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/ha-frontend-types .claude/skills/ha-frontend-types && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .claude/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-typesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install home-assistant/frontend ha-frontend-types --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/ha-frontend-types .agents/skills/ha-frontend-types && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .agents/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install home-assistant/frontend ha-frontend-types --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/ha-frontend-types .cursor/skills/ha-frontend-types && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .cursor/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/home-assistant/frontend.git --path .agents/skills/ha-frontend-types--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install home-assistant/frontend ha-frontend-types --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/ha-frontend-types .gemini/skills/ha-frontend-types && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .gemini/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install home-assistant/frontend ha-frontend-typesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/ha-frontend-types .github/skills/ha-frontend-types && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .github/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add home-assistant/frontend --skill ha-frontend-types -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install home-assistant/frontend ha-frontend-types --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/home-assistant/frontend.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/ha-frontend-types .opencode/skills/ha-frontend-types && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "ha-frontend-types" agent skill from https://github.com/home-assistant/frontend/tree/dev/.agents/skills/ha-frontend-types into .opencode/skills/ha-frontend-types/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ha-frontend-types", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
ha-frontend-types- GitHub stars
- 5.7k
- Token cost
- ~574 tokens
- SKILL.md length
- 276 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Home Assistant frontend TypeScript conventions. An agent skill from home-assistant/frontend.
- Reviewing backend data contracts
- SKILL.md covers Home Assistant Data Contracts, Reuse Home Assistant Contracts, Assertions and Lit Lifecycle Types, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Optional schemas
What it does
Ha Frontend Types is an agent skill from home-assistant/frontend. Home Assistant frontend TypeScript conventions. Use when defining or reviewing backend data contracts, optional schemas, shared types, assertions, or Lit lifecycle types.
Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design, covering Data governance. It works with Home Assistant and TypeScript. The repository describes itself as: :lollipop: Frontend for Home Assistant. The licence is Apache-2.0.
When your agent uses it
- Reviewing backend data contracts
- Optional schemas
- Lit lifecycle types
Example prompts
- “/ha-frontend-types”
What it can do on your machine
Read from SKILL.md and the folder at commit 0e9b62e. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Ha Frontend Types loads about 574 tokens when it runs. Until then it costs about 47 tokens; SKILL.md has 276 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from home-assistant/frontend at commit 0e9b62e, republished under its Apache-2.0 licence (© home-assistant). 276 words, ~574 tokens.
Download SKILL.mdSave it as
.claude/skills/ha-frontend-types/SKILL.md (or your agent's skills folder).- name
- ha-frontend-types
- description
- Home Assistant frontend TypeScript conventions. Use when defining or reviewing backend data contracts, optional schemas, shared types, assertions, or Lit lifecycle types.
HA Frontend Types
Use this skill for Home Assistant-specific TypeScript contracts and type choices.
Home Assistant Data Contracts
Verify data contracts against the source that owns them, such as Home Assistant Core, Supervisor, a WebSocket handler, or an exported component type. Do not shape a type around assumptions made by its current frontend consumers.
- Match required, optional, nullable, and defaulted fields to the producer and runtime contract. Preserve optional configuration fields when omission is supported and has defined behavior.
- Use distinct request and response types when their wire shapes differ.
- When changing a shared contract, check affected consumers, tests, fixtures, and mocks.
Reuse Home Assistant Contracts
- Reuse the canonical Home Assistant type when one exists. Define shared contract types in the data or API module that owns them.
- Reuse types exported by components and helpers rather than reconstructing their payloads. For event types, follow
ha-frontend-events. - When one domain contract is used across modules, define and export it from the module that owns that contract.
Prefer an existing owning contract. Introduce a frontend-specific type when the frontend shape or boundary genuinely differs.
Assertions
Prefer accurate types and runtime narrowing. Use assertions or TypeScript suppressions at boundaries where the runtime invariant is understood but cannot be expressed cleanly; keep them narrow and explain non-obvious invariants.
Lit Lifecycle Types
For Lit lifecycle methods that receive changed properties, use PropertyValues<this> when the method only needs public reactive properties:
protected willUpdate(changedProperties: PropertyValues<this>) {
// ...
}Use unparameterized PropertyValues when the method inspects private or protected reactive properties, which are not keys of this. Do not add assertions solely to retain PropertyValues<this>.
Enforced Baseline
Use import type for type-only imports. This is enforced by the repository ESLint configuration.
© home-assistant, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/ha-frontend-types of home-assistant/frontend.
Open the folder on GitHubat commit 0e9b62e
Compare with similar skills
Ha Frontend Types next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Ha Frontend Types this skillhome-assistant/frontend | 5.7k | — | ~574 | Automated safety check: Pass | Apache-2.0 | |
| Web Artifacts Builderanthropics/skills | 180k | 40 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| Ink Tui Wizardnovuhq/novu | 40k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Frontend Module Standardssiteboon/claudecodeui | 14k | — | ~2.6k | Automated safety check: Pass | AGPL-3.0 | |
| Dify Component Writing Guidelanggenius/dify | 158k | — | ~626 | Automated safety check: Pass | Custom licence | |
| React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase | 10k | 2 repos | ~2.9k | Automated safety check: Pass | MIT |
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Home Assistant frontend Lit context and hass migration guidance.
Ha Frontend Demo
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Home Assistant standalone demo structure, configurations, URL navigation, mocked APIs, shared demo stubs used by gallery, and verification.
Ha Frontend Gallery
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Home Assistant frontend styling, theming, spacing, responsive layout, RTL, and View Transitions guidance.
Ha Frontend Testing
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Home Assistant frontend testing and validation workflow. An agent skill from home-assistant/frontend.
Related
Works with
Categories
Questions about Ha Frontend Types
What does Ha Frontend Types do?
Home Assistant frontend TypeScript conventions. An agent skill from home-assistant/frontend. Ha Frontend Types is an agent skill from home-assistant/frontend. Home Assistant frontend TypeScript conventions.
When should I use Ha Frontend Types?
Ha Frontend Types fits situations like: reviewing backend data contracts; optional schemas; lit lifecycle types.
How do I install Ha Frontend Types in Claude Code?
Run `npx skills add home-assistant/frontend --skill ha-frontend-types -a claude-code`. Or copy the skill folder (.agents/skills/ha-frontend-types in home-assistant/frontend) into .claude/skills/ha-frontend-types in your project. Claude Code loads it when a task matches its description.
How do I install Ha Frontend Types in Codex?
Run `npx skills add home-assistant/frontend --skill ha-frontend-types -a codex`. Or copy the skill folder (.agents/skills/ha-frontend-types in home-assistant/frontend) into .agents/skills/ha-frontend-types in your project. Codex loads it when a task matches its description.
Can I use Ha Frontend Types in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add home-assistant/frontend --skill ha-frontend-types -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ha-frontend-types, .gemini/skills/ha-frontend-types, .github/skills/ha-frontend-types and .opencode/skills/ha-frontend-types in your project.
What does Ha Frontend Types need to run?
SKILL.md names no scripts, command-line tools or credentials: Ha Frontend Types is instructions for the agent only.
Does Ha Frontend Types access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Ha Frontend Types safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Ha Frontend Types use?
Ha Frontend Types is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Ha Frontend Types use?
About 574 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Ha Frontend Types?
Skills that share tags, products or a category with Ha Frontend Types: Web Artifacts Builder (anthropics/skills, 180k stars), Ink Tui Wizard (novuhq/novu, 40k stars), Frontend Module Standards (siteboon/claudecodeui, 14k stars) and Dify Component Writing Guide (langgenius/dify, 158k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ha Frontend Types?
home-assistant (a GitHub organization) maintains it in home-assistant/frontend, which has 5,698 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 10, 2026.
Source: home-assistant/frontend on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.