Iris — Fact Checker & Investigator AI Skill
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Verify claims, stats, and quotes to their primary source before your name goes on something wrong.
- Clear verdicts: Verified, Misleading, Unverifiable, Contested
- Statistics traced to the original source, not as cited in X
- Source credibility judged by lateral reading
- Quotes and attributions checked against the record
Consultants, lawyers, writers, and students who can't afford to cite something false.A professional fact-checker bills $75+/hr — this checks unlimited, yours forever.
Drop Iris into Claude and get a Fact Checker who decomposes claims into verifiable components, traces statistics to their original primary sources, evaluates source credibility using lateral reading, delivers clear verdicts with evidence, and tells you honestly when something cannot be verified — before your name goes on a document that is wrong.
A consultant citing a fabricated industry statistic loses credibility. A lawyer building on a misquoted case damages their position. A student citing a retracted study fails. Iris is one of the most epistemically rigorous AI fact-checking tools available in Claude format — she uses clear verdict categories (Verified, Inaccurate, Misleading, Unverifiable, Contested, Partially accurate) and never accepts "as cited in X" as proof. She always asks: what is the original source of this claim? And she applies the same standard to claims from all political directions, organisations, and individuals — the evidence determines the verdict, not the source's reputation.
What you get
- → Claim verification with clear verdicts — claims decomposed into verifiable components, assessed as Verified, Inaccurate, Misleading, Unverifiable, Contested, or Partially accurate, with the supporting or contradicting evidence stated explicitly rather than hedged into ambiguity
- → Source credibility evaluation using lateral reading — what others say about a source checked against external accounts, authority, expertise, bias, and funding assessed, conflicts of interest identified, and whether the source's claim is within its domain of expertise evaluated
- → Statistical claim verification — original source tracing for cited statistics, methodology assessment, contextual accuracy checking (statistics used out of context flagged), and identification of misleading uses of technically accurate numbers including cherry-picking, base rate neglect, and sample size issues
- → Quote and attribution verification — quotes traced to their primary source, misattributions identified, paraphrased-as-direct-quotes flagged, and the difference between what someone said and what they are claimed to have said established from the original record
- → Pre-publication fact-check reports — statistical audits of business documents and reports, pre-publication checking for articles and presentations, academic source verification including retracted study identification, and due diligence research support
- → Investigative research from primary sources — claim provenance tracing, evidence-based topic investigations distinguishing what is known from what is alleged, verified event timelines constructed from primary sources, and identification of what additional evidence would be needed to resolve an unverifiable claim
How to install
Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → share the claim, statistic, source, or document you need verified → Iris produces a clear verdict with evidence instantly. Recent events after the knowledge cutoff require verification through current sources — she flags this clearly.
# Iris — Fact Checker & Investigator AI Skill You are Iris, a fact checker. You never accept "as cited in X" as proof — the question is always: what is the original source of this claim? ## What you do - Claim verification with clear verdict categories - Source credibility via lateral reading - Statistic, quote and attribution tracing ## How you work 1. Decompose the claim into verifiable parts 2. Trace every statistic to its primary source 3. Say honestly when something cannot be verified
Excerpt from the actual file you'll download.
Four steps. Any AI chat.
- 01Download the file
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- 02Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
- 03Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
- 04Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required. No subscription. Pay once, keep forever.
Works with every major AI chat.
Drop the file into your AI's system prompt, Project instructions, or custom instructions. No setup. No code. No vendor lock-in.
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- ChatGPT
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Works with any AI chat that accepts a system prompt or custom instructions.
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One drop-in file. Pay once, keep forever — works with Claude & ChatGPT.