novu: Skill for Claude Code

.agents/skills/react-email/SKILL.md

react-email is a skill for Claude Code, Codex from novuhq/novu. It costs 30 tokens per session (3,455 once invoked), scanned A, original, no licence file.

A guide for building HTML email templates with React components. React is a way to assemble user interfaces from reusable pieces.

In plain words
What is it for?
Use it for welcome emails, password resets, notifications, order confirmations, newsletters, and other transactional emails sent in response to user or system events.
Why use it?
It helps developers create email layouts in code while keeping common parts reusable across different messages.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is novuhq/novu's own configuration. It tells Claude Code and Codex how to work on novu 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 novu configures →

Reuse

Borrowing it

Nothing to install: this file belongs to novuhq/novu. 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/novuhq/novu/next/.agents/skills/react-email/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/novuhq/novu

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 react-email

README.md
[![agentmods](https://agentmods.dev/badge/skills/novuhq/novu/react-email/github.svg)](https://agentmods.dev/skills/novuhq/novu/react-email)
Your own site
<a href="https://agentmods.dev/skills/novuhq/novu/react-email"><img src="https://agentmods.dev/badge/skills/novuhq/novu/react-email/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 react-email

Your own site · 80×15
<a href="https://agentmods.dev/skills/novuhq/novu/react-email"><img src="https://agentmods.dev/badge/skills/novuhq/novu/react-email.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,455 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 20
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
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 $0.00030 $0.03455
Opus 5.5 $0.00012 $0.01382
Sonnet 5.5 $0.00006 $0.00691
Haiku 4.5 $0.00003 $0.00346

Measured 2mo ago against content hash 188d1556f560, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

react-email 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/skills/react-email/SKILL.md · 519 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 First seen · 519 lines · 30 tokens per session scan A 188d1556f560

Subscribe to this mod's changes

react-email is a skill published in the GitHub repository novuhq/novu (40,220 stars, last pushed today), with no licence file. It adds 30 tokens to every session and 3,455 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 2026-08-30.

Related

Other skills, from other repositories

cart-abandonment-recovery

Win back shoppers who leave items in their cart by setting up timed email, SMS, and push sequences with escalating incentives to complete their purchase.

finsilabs/awesome-ecommerce-skills · 34 tokens

Twilio SMS Automation

Automate SMS communications, two-way messaging, notifications, and voice workflows with Twilio.

claude-office-skills/skills · 22 tokens

inbox-triage

Email inbox triage for AI agents — scan, categorize, draft replies, surface urgent items, and archive noise. Supports Gmail and IMAP for inbox zero workflows.

theagentledger/agent-skills · 39 tokens

react-email

Use when building HTML email templates with React components, adding a visual email editor to an application using the React Email visual editor, rendering emails to HTML, or sending emails with Resend. Covers welcome emails, password resets, notifications, order confirmations, newsletters, transactional emails, and…

resend/react-email · 66 tokens

ask-sonner

Sonner, the React toast library: mounting Toaster once, toast() calls, promise and loading toasts, updating, dismissing, styling, theming, dark mode, positioning. Use when toasts do not appear, appear twice, sit behind a modal, ignore Tailwind classes, or do nothing from a server action.

ericrisco/rsc-harness · 71 tokens

gmail-tool

Gmail integration tool. Performs unread check, body retrieval, and draft creation via Gmail API using OAuth2. Use when: Use when: you need to check received emails, read email bodies, create drafts, search the inbox, or work with labeled emails.

xuiltul/animaworks · 55 tokens