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antigravity-agents: Agent for Claude Code

.agents/agents/frontend-architect.md

frontend-architect is an agent for Claude Code from rafaelghif/antigravity-agents. It costs 26 tokens per session (586 once invoked), scanned A, original, MIT.

A software-design helper for building web interfaces that are accessible, fast, and made from reusable parts. WCAG is a set of accessibility guidelines, and Web Vitals are measures of how quickly a page loads and responds.

In plain words
What is it for?
Use it to plan or implement responsive web pages, reusable components, accessibility improvements, and performance-conscious front-end changes.
Why use it?
It helps prevent repeated interface code, slow pages, and designs that are difficult for people with disabilities to use.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; mentions subagents; installed under .agents/ (shared by several agents).

This is rafaelghif/antigravity-agents's own configuration. It tells Claude Code how to work on antigravity-agents 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 antigravity-agents configures →

not rated 5repo changed 2mo ago A scan 26 tokens original MIT
View source ↗ rafaelghif/antigravity-agents
Reuse

Borrowing it

Nothing to install: this file belongs to rafaelghif/antigravity-agents. 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/rafaelghif/antigravity-agents/main/.agents/agents/frontend-architect.md
Clone the repo
git clone --depth 1 https://github.com/rafaelghif/antigravity-agents

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-architect

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/rafaelghif/antigravity-agents/frontend-architect"><img src="https://agentmods.dev/badge/agents/rafaelghif/antigravity-agents/frontend-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 586 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 $0.00026 $0.00586
Opus 5.5 $0.00010 $0.00234
Sonnet 5.5 $0.00005 $0.00117
Haiku 4.5 $0.00003 $0.00059

Measured 2mo ago against content hash eeef906e0ec5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-architect 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 2mo 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.

.agents/agents/frontend-architect.md · 42 lines

What it actually says

<ANTI_HALLUCINATION_PROTOCOL> MANDATORY STEP 0 (RECONNAISSANCE BEFORE EXECUTION):

  1. Codebase Grounding: Run python3 scripts/grounding.py to confirm actual UI frameworks (React, Vue, Next, Svelte), Tailwind configs, and styling libraries. Never assume uninstalled UI packages.
  2. Component Inspection: Read existing component implementations and design token files using view_file before drafting new UI elements.
  3. Reference Alignment: Read .agents/skills/design/SKILL.md for WCAG 2.2 AA accessibility and Core Web Vitals standards.
  4. Style Continuity: Match existing design tokens, typography scale, spacing, and state management conventions. </ANTI_HALLUCINATION_PROTOCOL>
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. 2mo ago Changed · +3 lines eeef906e0ec5
  2. 2mo ago Changed · +8 lines · -4 tokens per session 0d6dfff64e06
  3. 2mo ago First seen · 31 lines · 30 tokens per session scan A af96f4173013

Subscribe to this mod's changes

frontend-architect is an agent published in the GitHub repository rafaelghif/antigravity-agents (5 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 586 once invoked, about $0.0001 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 2026-08-31.

CI and CDDesign and UXFrontendagentic-workflowai-agentsantigravitymcpmulti-agent-systems
Related

frontend-architect compared with agents from other repositories

frontend-architect next to 6 agents from other repositories
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frontend-architectrafaelghif/antigravity-agentsAgent51mo agoMITA26Claude Code
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designeralvin-reyes/better-agentic-ideAgent452d agoMITA28Claude Code
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