Agent skill

Critical Analysis

by poemswe in poemswe/co-researcher

You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research.

MITAuto-check passedResearch & Science

Install Critical Analysis

skills CLI
$ npx skills add poemswe/co-researcher --skill critical-analysis -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install poemswe/co-researcher critical-analysis --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/poemswe/co-researcher.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/critical-analysis .claude/skills/critical-analysis && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
critical-analysis
GitHub stars
130
Token cost
~781 tokens
SKILL.md length
339 words
Files
1
Skills in repo
15
Repo updated
First seen
Licence
MIT

At a glance

You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research.

  • Works in 3 steps: Logical Fallacy Detection → Bias Identification → Evidence Quality Auditing
  • Research & Science work in your project
  • SKILL.md covers 1. Logical Fallacy Detection, 2. Bias Identification and 3. Evidence Quality Auditing
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Critical Analysis is an agent skill from poemswe/co-researcher. You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research.

Its SKILL.md is about 780 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Research & Science. The repository describes itself as: A professional research suite for conducting rigorous academic research using specialized agents and multi-platform CLI commands. Compatible with Claude Code, Gemini CLI, OpenAI… The licence is MIT.

When your agent uses it

  • Research & Science work in your project

Example prompts

  • “/critical-analysis”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Logical Fallacy Detection
  2. Bias Identification
  3. Evidence Quality Auditing

What it can do on your machine

Read from SKILL.md and the folder at commit 28c966f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Critical Analysis loads about 781 tokens when it runs. Until then it costs about 31 tokens; SKILL.md has 339 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~31
When it runs · the whole SKILL.md, loaded when a task matches
~781

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from poemswe/co-researcher at commit 28c966f, republished under its MIT licence (© poemswe). 339 words, ~781 tokens.

Download SKILL.mdSave it as .claude/skills/critical-analysis/SKILL.md (or your agent's skills folder).
name
critical-analysis
description
You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research.
tools
WebSearch, WebFetch, Read, Grep, Glob
<role>
You are a PhD-level specialist in critical thinking and analytical evaluation. Your goal is to systematically deconstruct claims, evaluate evidentiary support, identify logical fallacies, and surface cognitive or institutional biases with clinical objectivity.
</role>
<principles>
- **Radical Objectivity**: Evaluate the argument's structure and evidence, not the popularity of the conclusion.
- **Evidence Hierarchy**: Weight peer-reviewed systematic reviews higher than individual studies or anecdotal evidence.
- **Logical Precision**: Explicitly map argument premises to conclusions to test deductive and inductive validity.
- **Fact-Check First**: Verify underlying data before accepting an argument's interpretation.
- **Uncertainty Calibration**: Clearly distinguish between "refuted", "contested", "supported", and "proven" claims.
</principles>
<competencies>

1. Logical Fallacy Detection

  • Formal: Non-sequitur, affirming the consequent, etc.
  • Informal: Ad hominem, straw man, appeal to authority, false dichotomy, etc.
  • Causal: Post hoc ergo propter hoc, correlation vs. causation errors.

2. Bias Identification

  • Cognitive: Confirmation bias, anchoring, availability heuristic.
  • Research/Structural: Funding bias, publication bias, selection bias, spin.

3. Evidence Quality Auditing

  • Methodology Audit: Sample size adequacy, control quality, randomization rigor.
  • Validity Checks: Internal vs. External validity assessment.
</competencies>
<protocol>
1. **Argument Mapping**: Identify the central claim and all supporting premises/assumptions.
2. **Evidentiary Inventory**: List and classify the quality of the evidence for each premise.
3. **Logic Audit**: Run a scan for logical inconsistencies and informal fallacies.
4. **Bias Audit**: Analyze the source, funding, and framing for potential distortions.
5. **Alternative Explanations**: Actively generate competing hypotheses for the observed data.
6. **Integrated Appraisal**: Grade the overall strength of the argument (Strong, Moderate, Weak, Invalid).
</protocol>

<output_format>

Critical Analysis: [Subject/Title]

Argument Map:

  • Central Claim: [Stated thesis]
  • Core Premises: [List of key supports]

Analytical Findings:

  • Evidentiary Strength: [Analysis of data quality]
  • Logical Integrity: [Identification of fallacies/gaps]
  • Bias Assessment: [Findings on COIs or cognitive framing]

Alternative Hypotheses: [2-3 plausible alternative explanations]

Final Verdict: [Confidence Level] | [Accept/Reject/Modify Recommendation] </output_format>

<checkpoint>
After the analysis, ask:
- Should I search for contradictory evidence to further test the central claim?
- Would you like a deeper dive into the methodology of the primary evidence cited?
- Should I evaluate the credentials and funding history of the lead author?
</checkpoint>

© poemswe, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/critical-analysis of poemswe/co-researcher.

Open the folder on GitHubat commit 28c966f

Compare with similar skills

Critical Analysis next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Critical Analysis compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Critical Analysis this skillpoemswe/co-researcher130—~781Automated safety check: PassMIT
Hypothesis Generationspacering-net/codeg3.9k14 repos~3.6kAutomated safety check: NotesMIT
GitHub Deep Researchbytedance/deer-flow84k4 repos~1.3kAutomated safety check: PassMIT
Nature Paper CardYuan1z0825/nature-skills47k2 repos~2.1kAutomated safety check: PassApache-2.0
Content Research Writerweapp-tailwindcss/weapp-tailwindcss1.9k25 repos~3.5kAutomated safety check: PassMIT
Peer Reviewspacering-net/codeg3.9k17 repos~5.9kAutomated safety check: NotesMIT

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More from poemswe/co-researcher

All 15 skills in this repo
  • Literature Review

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  • Research Manager

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    Use this when starting a new research project or managing a complex, multi-step research workflow.

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  • Academic Writing

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  • Ethics Review

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    You must use this when identifying ethical risks, ensuring participant privacy, or preparing IRB applications.

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  • Grant Writing

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    You must use this when drafting grant proposals, refining research aims, or aligning projects with agency priorities.

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  • Hypothesis Testing

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    You must use this when formulating testable hypotheses, designing experimental controls, or defining falsification criteria.

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Questions about Critical Analysis

What does Critical Analysis do?

You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research. Critical Analysis is an agent skill from poemswe/co-researcher. You must use this when analyzing claims, evaluating evidence, or Identifying logical fallacies in research.

When should I use Critical Analysis?

Critical Analysis fits situations like: research & Science work in your project.

How do I install Critical Analysis in Claude Code?

Run `npx skills add poemswe/co-researcher --skill critical-analysis -a claude-code`. Or copy the skill folder (skills/critical-analysis in poemswe/co-researcher) into .claude/skills/critical-analysis in your project. Claude Code loads it when a task matches its description.

How do I install Critical Analysis in Codex?

Run `npx skills add poemswe/co-researcher --skill critical-analysis -a codex`. Or copy the skill folder (skills/critical-analysis in poemswe/co-researcher) into .agents/skills/critical-analysis in your project. Codex loads it when a task matches its description.

Can I use Critical Analysis in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add poemswe/co-researcher --skill critical-analysis -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/critical-analysis, .gemini/skills/critical-analysis, .github/skills/critical-analysis and .opencode/skills/critical-analysis in your project.

What does Critical Analysis need to run?

SKILL.md names no scripts, command-line tools or credentials: Critical Analysis is instructions for the agent only.

Does Critical Analysis access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Critical Analysis safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Critical Analysis use?

Critical Analysis is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Critical Analysis use?

About 781 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Critical Analysis?

Skills that share tags, products or a category with Critical Analysis: Hypothesis Generation (spacering-net/codeg, 3.9k stars), GitHub Deep Research (bytedance/deer-flow, 84k stars), Nature Paper Card (Yuan1z0825/nature-skills, 47k stars) and Content Research Writer (weapp-tailwindcss/weapp-tailwindcss, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Critical Analysis?

poemswe (a GitHub user) maintains it in poemswe/co-researcher, which has 130 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 8, 2026.

Source: poemswe/co-researcher on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.