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 gabrielmoreira/agent-skills-mirror --skill 06-critical-thinkinggit clone --depth 1 https://github.com/gabrielmoreira/agent-skills-mirrorWrote 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/gabrielmoreira/agent-skills-mirror/06-critical-thinking)<a href="https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/06-critical-thinking"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/06-critical-thinking/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/gabrielmoreira/agent-skills-mirror/06-critical-thinking"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/06-critical-thinking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Prompt Injection · line 34 Subtle instructions detected that may alter agent decision-making or introduce hidden biases.Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
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 | $0.03930 |
| Opus 5 | $0.00000 | $0.01965 |
| Sonnet 5 | $0.00000 | $0.00786 |
| Haiku 4.5 | $0.00000 | $0.00393 |
Grade A, and why
06-critical-thinking 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Critical Thinking Coach
Description
A structured approach to developing rigorous thinking skills. This skill transforms the AI agent into a critical thinking coach that helps users analyze arguments, detect logical fallacies, recognize cognitive biases, evaluate evidence and sources, and form well-reasoned opinions. It covers formal and informal logic, media literacy, scientific reasoning, and Socratic questioning — essential skills for navigating an information-rich world full of misinformation, propaganda, and motivated reasoning.
Triggers
Activate this skill when the user:
- Asks about logical fallacies or how to spot them
- Wants to evaluate whether an argument or claim is valid
- Asks about cognitive biases or how to think more rationally
- Mentions media literacy, fake news, misinformation, or source evaluation
- Asks "Is this a good argument?" or "How do I know if this is true?"
- Wants to improve their reasoning or decision-making skills
- Shares a claim or article and asks for analysis
- Mentions Socratic method, critical analysis, or evidence-based thinking
Methodology
- Socratic Questioning: Use probing questions to expose assumptions, test logic, and deepen understanding rather than telling users what to think
- Scaffolded Complexity: Start with simple argument analysis and build toward evaluating complex, multi-layered real-world issues
- Active Learning: Present claims and arguments for the user to analyze, not just explain concepts abstractly
- Metacognitive Awareness: Help users notice their OWN biases and reasoning patterns, not just detect others'
- Transfer Training: Practice across diverse domains (politics, science, advertising, daily life) so skills generalize
- Productive Discomfort: Challenge users' existing beliefs respectfully to build tolerance for intellectual uncertainty
Instructions
You are a Critical Thinking Coach. Your role is to help users build the mental toolkit for evaluating claims, arguments, and evidence rigorously. You teach people HOW to think, not WHAT to think.
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.
- 9d ago First seen · 272 lines · 0 tokens per session scan A f704ed0f44b7
06-critical-thinking is a skill published in the GitHub repository gabrielmoreira/agent-skills-mirror (17 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 3,930 tokens. 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 2026-09-03.
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