What is disposable_email-post-check?

An email checker that tells you whether an address uses a disposable domain, a temporary email service often used for short-lived sign-ups. It also returns the domain it examined.

Use it in registration forms, lead collection, promotions, or account-verification flows.

It helps separate temporary addresses from regular email addresses before accepting or storing them.

disposable_email-post-check — Skill for Claude Code by bobadilla-tech

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 bobadilla-tech/requiems-api-skills --skill disposable_email-post-check

Clone the repo

git clone --depth 1 https://github.com/bobadilla-tech/requiems-api-skills

Made for: Claude Code.

Or install requiems-api-skills, the plugin that ships this one along with the rest of its 127 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check/github.svg)](https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check)

Your own site

<a href="https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/disposable_email-post-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 323 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.

Model	Per session	Once invoked
Fable 5.1	$0.00015	$0.00323
Opus 5	$0.00008	$0.00161
Sonnet 5	$0.00003	$0.00065
Haiku 4.5	$0.00002	$0.00032

Measured 11d ago against content hash a56d3521932d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

disposable_email-post-check 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 11d 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.

skills/disposable_email-post-check/SKILL.md · 59 lines

What it actually says

Endpoint

POST https://requiems.xyz/v1/networking/disposable/check

Check Single Email

Validate whether an email address uses a disposable domain

Parameters

Name	Type	Required	Location	Description
`email`	string	yes	body	The email address to check

Request Example

{
  "email": "[email protected]"
}

Response Example

{
  "data": {
    "email": "[email protected]",
    "is_disposable": true,
    "domain": "tempmail.com"
  },
  "metadata": {
    "timestamp": "2026-01-01T00:00:00Z"
  }
}

Response Fields

Field	Type	Description
`email`	string	The email address that was checked
`is_disposable`	boolean	Whether the email uses a disposable domain
`domain`	string	The domain part of the email address

Errors

undefined 400 — The request body is missing or malformed
undefined 400 — The email address format is invalid

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.

11d ago First seen · 59 lines · 15 tokens per session scan A a56d3521932d

Subscribe to this mod's changes

disposable_email-post-check is a skill published in the GitHub repository bobadilla-tech/requiems-api-skills (2 stars, last pushed 3d ago), licensed MIT. It adds 15 tokens to every session and 323 once invoked, about $0.0001 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.

Security agentic-ai claude-skills codex-skill copilot-skills requiems-api skills

humanizar

Reescreve textos em português brasileiro para soarem mais humanos e naturais, reduzindo padrões típicos de escrita gerada por IA sem alterar fatos, argumento ou intenção. Use quando o texto em PT-BR parecer genérico, burocrático ou gerado por IA, ou quando o usuário pedir para "humanizar", "dar vida", "tirar cara de…

fabricioctelles/skills · 167 tokens

agent-ready-cloudflare

Audit and improve website readiness for AI agents using the Cloudflare "Is It Agent Ready?" scanner (isitagentready.com). Covers scanning via API, interpreting results, generating implementation prompts, and fixing every check. Use when the user mentions "agent ready", "isitagentready", "AI agent scan", "agent…

fabricioctelles/skills · 158 tokens

human-ai

Rewrites English text so it reads as written by a person, without AI writing tics. Removes machine language patterns and AI slop, restores semantic entropy, and injects voice and personality. Use when ENGLISH text reads as generic, bland, or AI-generated - or when asked to "humanize", "de-slop", "remove AI patterns"…

fabricioctelles/skills · 115 tokens

coolify-operator

Master Coolify operator for self-hosted deployment platform. Use when the user mentions 'coolify', 'deploy on coolify', 'list/restart/redeploy applications', 'view coolify logs', 'coolify API/CLI', 'manage coolify servers/databases/apps', or 'coolify context'. Automates deployments and management via REST API or…

fabricioctelles/skills · 79 tokens

okf-open-knowledge-format

Create, validate, and enrich Open Knowledge Format (OKF) bundles — the open spec for representing organizational knowledge as markdown files with YAML frontmatter. Use when the user mentions 'OKF', 'Open Knowledge Format', 'knowledge bundle', 'OKF bundle', 'create a knowledge base for agents', 'validate OKF', 'convert…

fabricioctelles/skills · 168 tokens

resume-ats-beater

Este skill deve ser usado para reescrever currículos com foco em compatibilidade ATS e impacto para recrutadores, e/ou auditar perfis LinkedIn para maximizar visibilidade e conversão profissional. Acionar em pedidos de otimização de currículo, melhoria para ATS, reescrita profissional do CV, adaptação para vaga-alvo…

fabricioctelles/skills · 120 tokens