fact-checker SKILL.md skillA

fact-checker from ibrahimsobh/aiskills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ibrahimsobh/aiskills/fact-checker@git:20261008.b426679

Pins git:20261008.b426679 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ibrahimsobh/aiskills
Path
fact-checker/SKILL.md
Versions recorded
1
Latest version
git:20261008.b426679, committed Oct 8, 2026
Size
7,084 bytes
Repository stars
7
License
MIT

Verify the factual claims in a piece of text — an article, post, transcript, list of statements, or anything else the user pastes in — and return a Markdown table classifying each claim as Correct, Partially Correct, or Incorrect, backed by cited sources. Trigger this whenever the user asks to "fact-check", "verify", "check the accuracy of", "is this true", or shares a draft/post/claim and wants to know if the numbers, dates, quotes, or statements in it hold up. Works in any language — match…

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

# Fact Checker

Verify factual claims against reputable sources and report the verdict in a standard table. The value of this skill is in cited, sourced verification — not recall — so every claim gets checked against live sources, even ones that seem obviously true or false.

## Step 1 — Identify the claims

Pull out every distinct, checkable factual statement from the input: something with a truth value that evidence can confirm or refute (a number, a date, an attribution, an event, a mechanism). Leave out opinions, predictions, and subjective framing — they have no evidence to check against.

- If the input contains no checkable claims, or a statement is too vague to verify as written (undefined scope, no clear referent), don't guess at what was meant — ask the user to clarify or restate it in checkable form, and don't produce a table until you have something concrete to check.
- If the input is a mix of checkable claims and other content (opinions, hedges, predictions), check only the checkable parts. Mention once, outside the table, that the rest was excluded and why — don't caveat this per row.

## Step 2 — Research each claim
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ibrahimsobh/aiskills/fact-checker@sha256:4f8bceb0ded5c0e2

The line at the top of this page pins the label git:20261008.b426679, 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_kwkr3cxopvmxxug3.svg)](https://markdownregistry.com/a/art_kwkr3cxopvmxxug3)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 8, 2026.

versioncommittedcommitsizeaudit
git:20261008.b426679 latest2026-10-08 b426679 7,084 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 (7084 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

ibrahimsobh/aiskills · 7 stars · license MIT · pushed 2026-10-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_kwkr3cxopvmxxug3
GET https://markdownregistry.com/api/v1/resolve?ref=ibrahimsobh/aiskills/fact-checker
GET https://markdownregistry.com/api/v1/blob/4f8bceb0ded5c0e2faeea741057e5aeba895159fc03ec541c3e2cefa54015966

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.

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