Agent skill

Frontend Expert

by mizchi in mizchi/skills

Frontend architect perspective for the weekly review. An agent skill from mizchi/skills.

No licenceAuto-check passedFrontend & Design

Install Frontend Expert

skills CLI
$ npx skills add mizchi/skills --skill frontend-expert -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mizchi/skills frontend-expert --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/frontend-expert .claude/skills/frontend-expert && rm -rf skills-src

Use ~/.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/

Facts

Skill name
frontend-expert
GitHub stars
359
Token cost
~977 tokens
SKILL.md length
477 words
Files
2
Skills in repo
69
Repo updated
First seen
Licence
None found

At a glance

Frontend architect perspective for the weekly review. An agent skill from mizchi/skills.

  • Works in 3 steps: Read… → Sample 3-5 components from src/ (or the… → Judge: does the code feel like something…
  • Tasks that involve State management
  • SKILL.md covers Procedure, Output, Architecture Principles to… and Boundaries, plus 1 more section
  • Calls git

What it does

Frontend Expert is an agent skill from mizchi/skills. Frontend architect perspective for the weekly review. Focuses on component design, state management, DOM usage, developer experience, and build configuration. Reads raw JSON from other audit scripts and produces an opinionated perspective report.

Its SKILL.md is about 980 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `README.md`).

It sits in Frontend & Design, covering State management and Journaling and reflection. The repository describes itself as: Agent skills by mizchi, distributed via APM.

When your agent uses it

  • Tasks that involve State management
  • Tasks that involve Journaling and reflection

Example prompts

  • “/frontend-expert”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Read /.frontend-review/report/latest/raw/typescript.json, lint.json, deps.json, similarity.json.
  2. Sample 3-5 components from src/ (or the project's equivalent). Prefer the most-modified files (git log --since='1 week' --name-only).
  3. Judge: does the code feel like something a senior frontend architect would ship?

What it can do on your machine

Read from SKILL.md and the folder at commit 62f5808. 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

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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

Frontend Expert loads about 977 tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 477 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~66
When it runs · the whole SKILL.md, loaded when a task matches
~977

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 477 words (~977 tokens).

“You are a senior frontend architect reviewing a codebase during the weekly AI review. You care about:”

— opening of SKILL.md by mizchi
name
frontend-expert

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in frontend-expert of mizchi/skills.

  • SKILL.md
  • README.md

Open the folder on GitHubat commit 62f5808

Compare with similar skills

Frontend Expert 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.

Frontend Expert compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Frontend Expert this skillmizchi/skills359—~977Automated safety check: PassNone
Svelte Core Best Practicesrilldata/rill2.9k4 repos~1.8kAutomated safety check: PassApache-2.0
Dify Component Writing Guidelanggenius/dify158k—~626Automated safety check: PassCustom licence
React State Managementinvolvex/youtube-music-cli45613 repos~3kAutomated safety check: PassMIT
Pierre Theming Librarypierrecomputer/pierre6.3k—~661Automated safety check: PassApache-2.0
Frontend Patternskurealnum/dotfiles29019 repos~3.7kAutomated safety check: PassNone

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  • Rules for writing idiomatic Svelte 5 code: when to reach for runes like state, derived and effect, and how to handle props, attachments and bindings.

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  • Use when implementing or refactoring React/TypeScript components and the task requires decisions about component ownership, feature boundaries, state, data…

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    Frontend & DesignAuto-check passed
  • React State Management

    involvex/youtube-music-cli

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    456 GitHub starsUsed in 13 repos~3k tokens
    Frontend & DesignAuto-check passed
  • Pierre Theming Library

    pierrecomputer/pierre

    Explains how to use the @pierre/theming package to list, resolve, select, switch and persist themes, with controller, color and React references.

    6.3k GitHub stars~661 tokensUpdated today
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  • Frontend Patterns

    kurealnum/dotfiles

    Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

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Questions about Frontend Expert

What does Frontend Expert do?

Frontend architect perspective for the weekly review. An agent skill from mizchi/skills. Frontend Expert is an agent skill from mizchi/skills. Frontend architect perspective for the weekly review.

When should I use Frontend Expert?

Frontend Expert fits situations like: tasks that involve State management; tasks that involve Journaling and reflection.

How do I install Frontend Expert in Claude Code?

Run `npx skills add mizchi/skills --skill frontend-expert -a claude-code`. Or copy the skill folder (frontend-expert in mizchi/skills) into .claude/skills/frontend-expert in your project. Claude Code loads it when a task matches its description.

How do I install Frontend Expert in Codex?

Run `npx skills add mizchi/skills --skill frontend-expert -a codex`. Or copy the skill folder (frontend-expert in mizchi/skills) into .agents/skills/frontend-expert in your project. Codex loads it when a task matches its description.

Can I use Frontend Expert 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 mizchi/skills --skill frontend-expert -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/frontend-expert, .gemini/skills/frontend-expert, .github/skills/frontend-expert and .opencode/skills/frontend-expert in your project.

What does Frontend Expert need to run?

Going by SKILL.md and its folder, Frontend Expert needs the command-line tools its instructions call (git).

Does Frontend Expert access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Frontend Expert 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 Frontend Expert use?

No licence was found for Frontend Expert or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Frontend Expert use?

About 977 tokens (SKILL.md is roughly 3.9k 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 Frontend Expert?

Skills that share tags, products or a category with Frontend Expert: Svelte Core Best Practices (rilldata/rill, 2.9k stars), Dify Component Writing Guide (langgenius/dify, 158k stars), React State Management (involvex/youtube-music-cli, 456 stars) and Pierre Theming Library (pierrecomputer/pierre, 6.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Frontend Expert?

mizchi (a GitHub user) maintains it in mizchi/skills, which has 359 GitHub stars. The repository holds 69 skills in this directory. The repository was last updated on October 2, 2026.

Source: mizchi/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.