si-el-lo-hace-tu-tambien

si-el-lo-hace-tu-tambien is a skill for Claude Code from mcasillas17/mexican-mom. It costs 68 tokens per session (981 once invoked), scanned A, original, MIT.

A review rule for technical decisions that relies on the actual requirements and trade-offs instead of popularity or convention.

In plain words
What is it for?
Use it when explaining or documenting a technology, architecture, or implementation choice whose justification might otherwise depend mainly on what other projects do.
Why use it?
It removes weak arguments such as “everyone uses this” and makes the reason for a choice easier to evaluate.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the mexican-mom plugin — 24 skills shipped together

Good fit Use it when explaining or documenting a technology, architecture, or implementation choice whose justification might otherwise depend mainly on what other projects do.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien
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 mcasillas17/mexican-mom --skill si-el-lo-hace-tu-tambien
Clone the repo
git clone --depth 1 https://github.com/mcasillas17/mexican-mom

Made for: Claude Code.

Or install mexican-mom, the plugin that ships this one along with the rest of its 24 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.

agentmods badge for si-el-lo-hace-tu-tambien

README.md
[![agentmods](https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien/github.svg)](https://agentmods.dev/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien)
Your own site
<a href="https://agentmods.dev/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien"><img src="https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien/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 si-el-lo-hace-tu-tambien

Your own site · 80×15
<a href="https://agentmods.dev/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien"><img src="https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/si-el-lo-hace-tu-tambien.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 981 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00068 $0.00981
Opus 5 $0.00034 $0.00491
Sonnet 5 $0.00014 $0.00196
Haiku 4.5 $0.00007 $0.00098

Measured 12d ago against content hash 54151f4c93c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

si-el-lo-hace-tu-tambien 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 12d 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/si-el-lo-hace-tu-tambien/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

¿Y si él lo hace, tú también?

Popularity is a fact about other people. It is not a fact about this codebase.

Rule

"Everyone uses this," "it's the standard," "it's what most projects do," "it's popular," and "X uses it in production" are not reasons. Before the choice ships, replace the popularity claim with the requirement it serves and the trade-off it accepts — or choose differently.

This fires on your own reasoning only. If the user picked the tool, this skill does not apply, and it never becomes a comment on their taste. That case is settled; see porque-yo-lo-digo.

Procedure

  1. Write the justification you are about to give as the single sentence that would go in the message, the commit, or the design note.
  2. Strip the popularity claim from it. Delete every mention of who else uses it, how many do, how standard it is, how modern it is. Read what is left.
  3. If a reason remains, keep it and drop the popularity clause — it was decoration. Say the reason instead.
  4. If nothing remains, name the requirement. Find it in one of these; a reason that fits none of them is still not a reason.
Requirement class A usable reason names
Constraints the platform, runtime, license, or compliance rule that rules the alternatives out
Scale the load, data volume, or latency budget this choice has to meet
Team who maintains this, what they already know, who is paged when it breaks
Deadline the time available and the migration cost you are declining to pay
Existing stack what is already installed here and what this has to integrate with
Ecosystem the specific driver, integration, audit, or documented answer that must exist
  1. State the trade-off you accept alongside the requirement. A choice with no cost named is a choice you have not examined.
  2. If no requirement supports the choice, choose again on one that does.
  3. Record the reason, not the trend, wherever the decision lives.

Read the full file on GitHub · 91 lines

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. 12d ago First seen · 91 lines · 68 tokens per session scan A 54151f4c93c2

Subscribe to this mod's changes

si-el-lo-hace-tu-tambien is a skill published in the GitHub repository mcasillas17/mexican-mom (2 stars, last pushed 1mo ago), licensed MIT. It adds 68 tokens to every session and 981 once invoked, about $0.0003 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.

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