agentmods.dev

Forge: Agent for Claude Code

.claude/agents/frontend-web.md

frontend-web is an agent for Claude Code from lionshilov/Forge. It costs 57 tokens per session (384 once invoked), scanned A, original, MIT.

A specialist for building and changing the visible parts of websites and their browser-side behaviour. It covers React, Next.js, Vue, Svelte, Tailwind, accessibility, and Web Vitals, which are measures of website user experience and performance.

In plain words
What is it for?
Use it to create or modify web pages, interactive components, and client-side logic, including accessibility and performance work.
Why use it?
It gives web-interface tasks a focused coding role instead of mixing them with system architecture or visual design decisions. Its instructions also require checking the project's shared rules before changing code.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

This is lionshilov/Forge's own configuration. It tells Claude Code how to work on Forge itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Forge configures →

not rated 5repo 1mo ago A scan 57 tokens original MIT
View source ↗ lionshilov/Forge
Reuse

Borrowing it

Nothing to install: this file belongs to lionshilov/Forge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/lionshilov/Forge/main/.claude/agents/frontend-web.md
Clone the repo
git clone --depth 1 https://github.com/lionshilov/Forge

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-web

README.md
[![agentmods](https://agentmods.dev/badge/agents/lionshilov/forge/frontend-web/github.svg)](https://agentmods.dev/agents/lionshilov/forge/frontend-web)
Your own site
<a href="https://agentmods.dev/agents/lionshilov/forge/frontend-web"><img src="https://agentmods.dev/badge/agents/lionshilov/forge/frontend-web/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-web

Your own site · 80×15
<a href="https://agentmods.dev/agents/lionshilov/forge/frontend-web"><img src="https://agentmods.dev/badge/agents/lionshilov/forge/frontend-web.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 384 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 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 5.1 $0.00057 $0.00384
Opus 5.5 $0.00023 $0.00154
Sonnet 5.5 $0.00011 $0.00077
Haiku 4.5 $0.00006 $0.00038

Measured today against content hash ed3349b1cebb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-web 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 today.

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-web.md · 32 lines

What it actually says

You are the Frontend-Web specialist in the Forge agent system.

Your full operating instructions

Before writing any code, read agents/frontend-web/CLAUDE.md in the project root — that is your complete prompt (responsibilities, rules, Before-Submitting checklist, anti-patterns). Treat it as authoritative.

Shared context you MUST read first

  1. project_context/PRODUCT.md
  2. project_context/DESIGN.md — tokens, components, a11y floor
  3. project_context/ARCHITECTURE.md
  4. project_context/CONVENTIONS.md
  5. project_context/INTERFACES.md
  6. project_context/SECURITY.md — CSRF, CORS, input handling
  7. project_context/ANALYTICS.md — events you are expected to fire
  8. project_context/ERRORS_LOG.md

Invariants (never violate)

  • Use design tokens from DESIGN.md, never raw hex / magic numbers
  • Client validation is UX only — server must re-validate
  • Every interactive element must be keyboard-reachable with a visible focus state
  • Fire analytics events exactly per ANALYTICS.md schema
  • No secrets, API keys, or service URLs in client bundles

Reporting back

Return a compact summary: files changed, key decisions, self-assessed confidence (1–5), known issues / TODOs. QA will review your output next.

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. today First seen · 32 lines · 57 tokens per session scan A ed3349b1cebb

Subscribe to this mod's changes

frontend-web is an agent published in the GitHub repository lionshilov/Forge (5 stars, last pushed 1mo ago), licensed MIT. It adds 57 tokens to every session and 384 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-11-07.

FrontendLLMMulti-AgentReactVue and Svelteai-agentsanthropicclaude
Related

frontend-web compared with agents from other repositories

frontend-web next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
frontend-weblionshilov/ForgeAgent51mo agoMITA57Claude Code
react-build-resolveraffaan-m/ECCAgent299ktodayMITA73Claude Code, Kiro
react-revieweraffaan-m/ECCAgent299ktodayMITA53Claude Code, Kiro
frontend-specialistsoftspark/ai-toolkitAgent179yesterdayApache-2.0A59Claude Code
Stolarz meblowy UITheJacksonCode/Agent-ArchitectureAgent1101mo agoMITA78Claude Code
Lawlietjosix/agent-flowAgent812d agoMITA25Claude Code
Rikojosix/agent-flowAgent812d agoMITA24Claude Code