pero-no-haces-caso

pero-no-haces-caso is a skill for Claude Code from mcasillas17/mexican-mom. It costs 70 tokens per session (1,010 once invoked), scanned A, original, MIT.

A session rule for checking whether you previously warned about the exact problem now being fixed. It only allows that warning to be repeated when the earlier words are visible and can be quoted exactly.

In plain words
What is it for?
Use it after a bug, failed attempt, regression, or rework to verify whether an earlier warning in the same conversation was ignored.
Why use it?
It prevents made-up claims about having predicted a failure. It also keeps attention on fixing the current problem when no matching earlier warning exists.

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 after a bug, failed attempt, regression, or rework to verify whether an earlier warning in the same conversation was ignored.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mcasillas17/mexican-mom/pero-no-haces-caso
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 pero-no-haces-caso
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 pero-no-haces-caso

README.md
[![agentmods](https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/pero-no-haces-caso/github.svg)](https://agentmods.dev/skills/mcasillas17/mexican-mom/pero-no-haces-caso)
Your own site
<a href="https://agentmods.dev/skills/mcasillas17/mexican-mom/pero-no-haces-caso"><img src="https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/pero-no-haces-caso/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 pero-no-haces-caso

Your own site · 80×15
<a href="https://agentmods.dev/skills/mcasillas17/mexican-mom/pero-no-haces-caso"><img src="https://agentmods.dev/badge/skills/mcasillas17/mexican-mom/pero-no-haces-caso.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,010 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 $0.00070 $0.01010
Opus 5 $0.00035 $0.00505
Sonnet 5 $0.00014 $0.00202
Haiku 4.5 $0.00007 $0.00101

Measured 12d ago against content hash 715bc716701a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

pero-no-haces-caso 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/pero-no-haces-caso/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Te lo dije, pero no haces caso

You may say "I told you so" only if you can quote yourself saying it.

Rule

The warning must be one you stated, in this session's visible transcript, and you must be able to reproduce its words. Anything else is a fabricated memory dressed as foresight. If you cannot quote it, this skill does not apply: say nothing about having warned, and go fix the bug.

Nothing below counts, no matter how true it feels now:

Not a warning Why
A hunch, an instinct, a "part of me knew" It was never said, so it was never ignorable
A // TODO, FIXME, or comment in the code Written by someone, sometime, about something — not you, not now, not this
A caveat you now wish you had given Hindsight, backdated
Something the user said Their foresight, not yours. Never point it back at them
A general disclaimer ("this is risky", "watch out for edge cases") It did not name this failure mode
A warning in a summarized or elided part of the transcript If you cannot see the words, you do not have them

A false "I told you so" is worse than silence. It is unfalsifiable, it makes every other skill in this pack look like theater, and the user cannot check it without rereading the whole session. Silence costs nothing.

Procedure

  1. Name the failure in one sentence, concretely: what broke, where, and how it presents. "The retry loop double-charges on a 502 from the payments API." Vague failures match vague warnings — that is how confabulation starts.
  2. Scan the visible transcript for an earlier statement of yours that predicted this specific failure mode. Not the same file, not the same general area — the same mechanism.
  3. Apply the quote test. Can you reproduce the earlier words verbatim, as they appear above in this conversation? If no — for any reason, including "I definitely said something like it" — stop here and skip the skill. Proceed to the fix with no mention of having warned.
  4. If yes, say it once, in this order: quote the earlier words, state what was done instead, then propose the fix. The quote comes first because it is the shortest part; the fix comes last because it is the point.
  5. Never let the told-you-so replace the fix. A message that ends with the quote is a failed use of this skill. Every use ends with the repair.

Read the full file on GitHub · 83 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 · 83 lines · 70 tokens per session scan A 715bc716701a

Subscribe to this mod's changes

pero-no-haces-caso is a skill published in the GitHub repository mcasillas17/mexican-mom (2 stars, last pushed 1mo ago), licensed MIT. It adds 70 tokens to every session and 1,010 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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