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 MoizIbnYousaf/marketing-cli --skill resend-inboundgit clone --depth 1 https://github.com/MoizIbnYousaf/marketing-cliWrote 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/moizibnyousaf/marketing-cli/resend-inbound)<a href="https://agentmods.dev/skills/moizibnyousaf/marketing-cli/resend-inbound"><img src="https://agentmods.dev/badge/skills/moizibnyousaf/marketing-cli/resend-inbound/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/moizibnyousaf/marketing-cli/resend-inbound"><img src="https://agentmods.dev/badge/skills/moizibnyousaf/marketing-cli/resend-inbound.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to critical
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 →
- critical YARA Match · line 93 YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
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 | $0.00077 | $0.02126 |
| Opus 5 | $0.00039 | $0.01063 |
| Sonnet 5 | $0.00015 | $0.00425 |
| Haiku 4.5 | $0.00008 | $0.00213 |
Grade A, and why
resend-inbound scanned grade A with 1 finding 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 6d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
const response = await fetch(attachment.download_url); How it starts
The opening of the file, as written. The whole thing — 295 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Receive Emails with Resend
Overview
Resend processes incoming emails for your domain and sends webhook events to your endpoint. Webhooks contain metadata only — you must call separate APIs to retrieve email body and attachments.
This skill is context-independent — it does not use brand/ files and works identically in any project.
On Activation
- Determine if the user needs a Resend-managed domain or custom domain.
- Walk through domain setup and webhook configuration.
- Implement webhook handler with signature verification.
- Add content retrieval logic (body + attachments as needed).
- Add routing logic if multiple recipients are expected.
Output: A webhook handler file with signature verification, content retrieval, and routing logic.
Quick Start
- Configure receiving domain — Use Resend's
.resend.appdomain or add MX record for custom domain - Set up webhook — Subscribe to
email.receivedevent - Retrieve content — Call Receiving API for body, Attachments API for files
Domain Setup
Option 1: Resend-Managed Domain (Fastest)
Use your auto-generated address: <anything>@<your-id>.resend.app
No DNS configuration needed. Find your address in Dashboard → Emails → Receiving → "Receiving address".
Option 2: Custom Domain
Add MX record to receive at <anything>@yourdomain.com.
| Setting | Value |
|---|---|
| Type | MX |
| Host | Your domain or subdomain |
| Value | Provided in Resend dashboard |
| Priority | 10 (lowest number wins a conflict, but typically only multiples of 10 are used) |
Critical: Your MX record must have the lowest priority value, or emails won't route to Resend.
Subdomain Recommendation
If you already have MX records (e.g., Google Workspace, Microsoft 365):
| Approach | Result |
|---|---|
| Use subdomain (recommended) | support.acme.com → Resend, acme.com → existing provider |
| Use root domain | All email routes to Resend (breaks existing email) |
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.
- 6d ago First seen · 295 lines · 77 tokens per session scan A b5f1675824f0
resend-inbound is a skill published in the GitHub repository MoizIbnYousaf/marketing-cli (31 stars, last pushed 23d ago), licensed MIT. It adds 77 tokens to every session and 2,126 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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