Borrowing it
Nothing to install: this file belongs to hackingyseguridad/IA. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/hackingyseguridad/IA/main/.claude/skills/email/SKILL.mdgit clone --depth 1 https://github.com/hackingyseguridad/IAWrote 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/hackingyseguridad/ia/email)<a href="https://agentmods.dev/skills/hackingyseguridad/ia/email"><img src="https://agentmods.dev/badge/skills/hackingyseguridad/ia/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.
<a href="https://agentmods.dev/skills/hackingyseguridad/ia/email"><img src="https://agentmods.dev/badge/skills/hackingyseguridad/ia/email.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 | $0.00000 | $0.05725 |
| Opus 5.5 | $0.00000 | $0.02290 |
| Sonnet 5.5 | $0.00000 | $0.01145 |
| Haiku 4.5 | $0.00000 | $0.00573 |
Grade A, and why
email 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `curl` | Pruebas HTTP y webmail | 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.
What ships with it
1 file 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.
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 · 579 lines · 0 tokens per session scan A bf10eeb80106
email is a skill published in the GitHub repository hackingyseguridad/IA (3 stars, last pushed 5d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 5,725 tokens. 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 2026-08-31.
Other skills, from other repositories
blind-sqli
Blind SQL injection under hostile WAF — manual bypass playbook for when sqlmap fails because common tokens (SUBSTRING, IF, AND, WHERE, single quotes) are filtered. Covers token-fingerprinting probe loops, arithmetic-multiplication boolean evaluation, hex-encoded literals, and exponential-probe binary search. Loaded on…
hpp
HTTP Parameter Pollution — parser discrepancies between proxy/server/app, WAF bypass, auth/ACL bypass, injection delivery.
php-type-juggling
PHP type juggling and magic hash attacks — exploit loose comparison (==) with 0e-prefixed hash collisions and NULL returns to bypass authentication.
race-condition
Race condition / TOCTOU exploitation — concurrent and parallel-request attacks against web applications that check then act, write session state before validating it, or perform slow operations that widen the race window. Covers single-endpoint races (double-spend, coupon abuse, balance overflow) and multi-endpoint…
verb-tampering
HTTP verb/method tampering — auth bypass via HEAD/OPTIONS/arbitrary methods, X-HTTP-Method-Override, TRACE/PUT/DELETE exposure, framework routing flaws.
csrf
Cross-Site Request Forgery — missing/invalid tokens, method override, JSON CSRF, SameSite gaps, double-submit flaws, login/logout CSRF, and CSRF-via-XSS chains to account takeover.