aco-frontend-coder

aco-frontend-coder is a skill for Claude Code, Codex from yoonhwan/ai-codex-orchestrator. It costs 41 tokens per session (2,244 once invoked), scanned A, original, no licence file.

A frontend coding skill for building user interfaces, pages, state management, and basic unit tests. Frontend code is the part of an application that users see and interact with.

In plain words
What is it for?
Use it to create UI components and pages, manage application state, and write basic unit tests.
Why use it?
It supports common interface development work in one workflow, including keeping page state and checking basic behavior with tests.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: model in frontmatter.

Good fit Use it to create UI components and pages, manage application state, and write basic unit tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yoonhwan/ai-codex-orchestrator/aco-frontend-coder
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.

Any agent
npx skills add yoonhwan/ai-codex-orchestrator --skill aco-frontend-coder
Clone the repo
git clone --depth 1 https://github.com/yoonhwan/ai-codex-orchestrator

Made for: Claude Code, Codex.

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 aco-frontend-coder

README.md
[![agentmods](https://agentmods.dev/badge/skills/yoonhwan/ai-codex-orchestrator/aco-frontend-coder.svg)](https://agentmods.dev/skills/yoonhwan/ai-codex-orchestrator/aco-frontend-coder)
Your own site
<a href="https://agentmods.dev/skills/yoonhwan/ai-codex-orchestrator/aco-frontend-coder"><img src="https://agentmods.dev/badge/skills/yoonhwan/ai-codex-orchestrator/aco-frontend-coder.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,244 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 $0.00041 $0.02244
Opus 5 $0.00020 $0.01122
Sonnet 5 $0.00008 $0.00449
Haiku 4.5 $0.00004 $0.00224

Measured 8d ago against content hash 772fc86e5fbd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

aco-frontend-coder 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 8d 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.

crew-skills/aco-frontend-coder/SKILL.md · 203 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. 8d ago First seen · 203 lines · 41 tokens per session scan A 772fc86e5fbd

Subscribe to this mod's changes

aco-frontend-coder is a skill published in the GitHub repository yoonhwan/ai-codex-orchestrator (4 stars, last pushed 5mo ago), with no licence file. It adds 41 tokens to every session and 2,244 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 2026-08-31.

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