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.
npx skills add Tarekkharsa/agentstack --skill frontend-reviewgit clone --depth 1 https://github.com/Tarekkharsa/agentstackWrote 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.
[](https://agentmods.dev/skills/tarekkharsa/agentstack/frontend-review)<a href="https://agentmods.dev/skills/tarekkharsa/agentstack/frontend-review"><img src="https://agentmods.dev/badge/skills/tarekkharsa/agentstack/frontend-review/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.
<a href="https://agentmods.dev/skills/tarekkharsa/agentstack/frontend-review"><img src="https://agentmods.dev/badge/skills/tarekkharsa/agentstack/frontend-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00020 | $0.00039 |
| Opus 5.5 | $0.00008 | $0.00016 |
| Sonnet 5.5 | $0.00004 | $0.00008 |
| Haiku 4.5 | $0.00002 | $0.00004 |
Grade A, and why
frontend-review 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 1mo 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.
What it actually says
frontend-review
Check accessibility, keys, and effect deps.
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.
- 1mo ago First seen · 9 lines · 20 tokens per session scan A ca0b0024f145
frontend-review is a skill published in the GitHub repository Tarekkharsa/agentstack (3 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 20 tokens to every session and 39 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.
Other skills, from other repositories
fe-framework-coding-standard
Standardized frontend implementation guidance for FE Dev using the SRS-declared Frontend-Framework. Use when coding, refactoring, or reviewing UI work in React Native, ReactJS, Flutter, Vue.js, Angular, or Next.js; FE Dev reads docs/SRS.md Frontend-Framework plus §3.4.2/§3.4.5 for multi-app projects, then selects the…
engineering-frontend-developer
A frontend development guide for modern web interfaces built with React, Vue, or Angular. Frontend code is the part of a website or web app that users see and interact with.
pr-check-frontend
Frontend PR checklist for React, Next.js, Vue.js, Tailwind CSS, and React Query (F1–F16). Use when user says "frontend review", "review my React/Vue PR", "check my UI code", working in a frontend repo, or when the diff contains .tsx/.vue/.css files. For the full review workflow, use pr-review.
zoom-meeting-sdk-web-component-view
Zoom Meeting SDK Web - Component View. Embeddable Zoom meeting components with Promise-based API for flexible integration. Ideal for React/Vue/Angular apps and custom layouts. Uses ZoomMtgEmbedded with async/await patterns and embeddable UI containers.
add-localization
Adds or extends multilingual localization in a Power Pages code-site SPA. Use whenever the user asks to translate, localize, internationalize, support multiple languages, add a language selector, add locale routes, repair an i18n setup, or add languages to an existing React, Vue, Angular, or Astro Power Pages site.
recipe-front-review
Reviews completed frontend implementation for governing-source compliance, scope economy, repository quality, and security, then applies user-approved React corrections.