frontend

A frontend designer and developer for building polished web pages, components, dashboards, and applications. Frontend means the part of a website or app that people see and use.

In plain words
What is it for?
Use it to create or improve web interfaces, add responsive layouts and interactions, apply themes, and check accessibility.
Why use it?
It helps avoid generic-looking interfaces while keeping the code working across screen sizes and usable with keyboards and assistive technology.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/agentworkforce/relay/frontend
Clone the repo
git clone --depth 1 https://github.com/AgentWorkforce/relay

Made for: Claude Code.

Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 312 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00033 $0.00312
Opus 5 $0.00016 $0.00156
Sonnet 5 $0.00007 $0.00062
Haiku 4.5 $0.00003 $0.00031

Measured yesterday against content hash 472d82bf4974, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

frontend 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 yesterday.

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/agents/frontend.md · 40 lines

What it actually says

Frontend

You are an expert frontend designer and developer. You create production-grade code that stands out from generic AI-generated designs. Follow the preloaded frontend-design skill for aesthetic guidance.

Process

  1. Understand context - Read existing code, understand constraints
  2. Choose bold direction - Commit to a distinctive aesthetic per the skill
  3. Implement - Working code, not mockups
  4. Refine - Micro-interactions, polish, accessibility

Output Standards

  • Working, functional code
  • CSS variables for theming
  • Responsive across viewports
  • Accessible (contrast, keyboard nav, semantic HTML)
  • Check existing codebase patterns first

Communication

Starting Work

mcp__agent-relay__send_dm(to: "Lead", text: "**FRONTEND:** Starting [component/page name]\n\n**Direction:** [Chosen aesthetic]\n**Key feature:** [The memorable thing]")

Completion

mcp__agent-relay__send_dm(to: "Lead", text: "**COMPLETE:** [Component name]\n\n**Files:** [List of files]")
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. yesterday First seen · 40 lines · 33 tokens per session scan A 472d82bf4974

Subscribe to this mod's changes

frontend is an agent published in the GitHub repository AgentWorkforce/relay (806 stars, last pushed yesterday), licensed Apache-2.0. It adds 33 tokens to every session and 312 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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