critical-thinking-logical-reasoning SKILL.md skillA

critical-thinking-logical-reasoning from martineserios/thebrana is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add martineserios/thebrana/critical-thinking-logical-reasoning@git:20260615.d11a2d9

Pins git:20260615.d11a2d9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
martineserios/thebrana
Path
.agents/skills/critical-thinking-logical-reasoning/SKILL.md
Versions recorded
1
Latest version
git:20260615.d11a2d9, committed Jun 15, 2026
Size
3,550 bytes
Repository stars
3
License
MIT

Critical thinking and logical reasoning analysis skills for when you are explicitly asked to critically analyse written content such as articles, blogs, transcripts and reports (not code).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

The following guidelines help you think critically and perform logical reasoning.

Your role is to examine information, arguments, and claims using logic and reasoning, then provide clear, actionable critique.

One of your goals is to avoid signal dilution, context collapse, quality degradation and degraded reasoning for future agent or human understanding of the meeting by ensuring you keep the signal to noise ratio high and that domain insights are preserved.

When analysing content:

1. **Understand the argument first** - Can you state it in a way the speaker would agree with? If not, you are not ready to critique.
2. **Identify the core claim(s)** - What is actually being asserted? Separate conclusions from supporting points.
3. **Examine the evidence** - Is it sufficient? Relevant? From credible sources?
4. **Spot logical issues** - Look for fallacies, unsupported leaps, circular reasoning, false dichotomies, appeals to authority/emotion, hasty generalisations. Note: empirical claims need evidence; normative claims need justified principles; definitional claims need consistency.
5. **Surface hidden assumptions** - What must be true for this argument to hold?
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add martineserios/thebrana/critical-thinking-logical-reasoning@sha256:c8fa41560a87b6b1

The line at the top of this page pins the label git:20260615.d11a2d9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_v3ivpfu743v6ritx.svg)](https://markdownregistry.com/a/art_v3ivpfu743v6ritx)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jun 15, 2026.

versioncommittedcommitsizeaudit
git:20260615.d11a2d9 latest2026-06-15 d11a2d9 3,550 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3550 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

martineserios/thebrana · 3 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_v3ivpfu743v6ritx
GET https://markdownregistry.com/api/v1/resolve?ref=martineserios/thebrana/critical-thinking-logical-reasoning
GET https://markdownregistry.com/api/v1/blob/c8fa41560a87b6b1e6aa0e4a5abf5f369c1529ff15c896ee602b3abec62ddc67

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from martineserios/thebrana

cold-start-problem SKILL.md skill
martineserios/thebrana · .agents/skills/cold-start-problem/SKILL.md · Start and scale networked products using Andrew Chen''s "The Cold Start Problem" framework for network effects. Use…
v1.2.0 · audit A · 3 stars
decision-matrix SKILL.md skill
martineserios/thebrana · .agents/skills/decision-matrix/SKILL.md · Compares multiple named alternatives against weighted criteria to produce transparent, defensible choices with explicit…
git:20260615.d11a2d9 · audit A · 3 stars
domain-driven-design SKILL.md skill
martineserios/thebrana · .agents/skills/domain-driven-design/SKILL.md · DDD tactical patterns for complex business modeling including entities, value objects, aggregates, domain services…
v1.0.0 · audit A · 3 stars
first-principles SKILL.md skill
martineserios/thebrana · .agents/skills/first-principles/SKILL.md · Break down complex problems to their fundamental truths, then reason up from there. Master Aristotle's ancient method…
v1.0.0 · audit A · 3 stars
inversion SKILL.md skill
martineserios/thebrana · .agents/skills/inversion/SKILL.md · "Invert, always invert." Apply Carl Jacobi's mathematical principle and Charlie Munger's investing wisdom to solve…
v1.0.0 · audit A · 3 stars
jobs-to-be-done SKILL.md skill
martineserios/thebrana · .agents/skills/jobs-to-be-done/SKILL.md · Discover what customers truly need by analyzing the "job" they hire your product to do. Use when the user mentions…
v1.5.0 · audit A · 3 stars
marketplace-fundamentals SKILL.md skill
martineserios/thebrana · .agents/skills/marketplace-fundamentals/SKILL.md · Help users understand the core mechanics of marketplace businesses, from solving the cold start problem to maintaining…
git:20260731.0803ef5 · audit A · 3 stars
marketplace-liquidity-take-rates SKILL.md skill
martineserios/thebrana · .agents/skills/marketplace-liquidity-take-rates/SKILL.md · Help users define precise liquidity metrics, set competitive take rates based on value delivery, and manage the…
git:20260731.0803ef5 · audit A · 3 stars
pre-mortem SKILL.md skill
martineserios/thebrana · .agents/skills/pre-mortem/SKILL.md · Imagine your project has failed spectacularly—then work backward to identify why. Apply Gary Klein's "prospective…
v1.0.0 · audit A · 3 stars
second-order-thinking SKILL.md skill
martineserios/thebrana · .agents/skills/second-order-thinking/SKILL.md · Think beyond immediate consequences to understand the chain reactions of decisions. Master Howard Marks' investment…
v1.0.0 · audit A · 3 stars
six-thinking-hats SKILL.md skill
martineserios/thebrana · .agents/skills/six-thinking-hats/SKILL.md · Apply Edward de Bono's parallel thinking framework (1985) to make better decisions by examining ideas from six distinct…
v1.0.0 · audit A · 3 stars
supply-demand-balance SKILL.md skill
martineserios/thebrana · .agents/skills/supply-demand-balance/SKILL.md · Help users identify whether supply or demand is their primary growth bottleneck and apply tactical levers to achieve…
git:20260731.0803ef5 · audit F · 3 stars

Every file in martineserios/thebrana

Other files named critical-thinking-logical-reasoning

critical-thinking-logical-reasoning SKILL.md skill
martineserios/thebrana · system/skills/acquired/critical-thinking-logical-reasoning/SKILL.md · Surface hidden assumptions, detect logical fallacies, examine evidence quality, and stress-test arguments before…
git:20260615.6d899e8 · audit A · 3 stars

Browse by kind, by grade A, or by owner.