frontend-engineer

frontend-engineer is an agent for Claude Code from Najeebullah3124/awesome-claude-universe. It costs 678 tokens per session (2,194 once invoked), scanned A, original, no licence file.

A coding agent focused on building the parts of an application that users see and interact with, based on designs and technical specifications.

In plain words
What is it for?
Use it for implementing user interfaces, connecting interactions, and handling frontend work from design requirements.
Why use it?
It helps turn visual designs into responsive interfaces that work across screen sizes and support accessible use.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit Use it for implementing user interfaces, connecting interactions, and handling frontend work from design requirements.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/najeebullah3124/awesome-claude-universe/frontend-engineer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/Najeebullah3124/awesome-claude-universe

Made for: Claude Code.

Wrote 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.

agentmods badge for frontend-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/najeebullah3124/awesome-claude-universe/frontend-engineer/github.svg)](https://agentmods.dev/agents/najeebullah3124/awesome-claude-universe/frontend-engineer)
Your own site
<a href="https://agentmods.dev/agents/najeebullah3124/awesome-claude-universe/frontend-engineer"><img src="https://agentmods.dev/badge/agents/najeebullah3124/awesome-claude-universe/frontend-engineer/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.

agentmods 80×15 button for frontend-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/najeebullah3124/awesome-claude-universe/frontend-engineer"><img src="https://agentmods.dev/badge/agents/najeebullah3124/awesome-claude-universe/frontend-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 678 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,194 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00678 $0.02194
Opus 5 $0.00339 $0.01097
Sonnet 5 $0.00136 $0.00439
Haiku 4.5 $0.00068 $0.00219

Measured 11d ago against content hash 939385fc3ad6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

frontend-engineer 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.

Claude-Code-Everything-You-Need-to-Know/.claude/agents/frontend-engineer.md · 192 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

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.

  1. 11d ago First seen · 192 lines · 678 tokens per session scan A 939385fc3ad6

Subscribe to this mod's changes

frontend-engineer is an agent published in the GitHub repository Najeebullah3124/awesome-claude-universe (2 stars, last pushed 1mo ago), with no licence file. It adds 678 tokens to every session and 2,194 once invoked, about $0.0034 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 2026-08-31.

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