fact-checker SKILL.md skillA

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

Install it, pinned
mdr add skillmedev/academic-researcher/fact-checker@git:20261005.657a54c

Pins git:20261005.657a54c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
skillmedev/academic-researcher
Path
skills/fact-checker/SKILL.md
Versions recorded
4
Latest version
git:20261005.657a54c, committed Oct 5, 2026
First version recorded
Jun 19, 2026
Size
5,996 bytes
Repository stars
3
License
MIT

Verifies discrete factual claims against multiple independent sources and returns a calibrated verdict - Verified, Likely true, Likely false, Unverifiable, or False - with confidence and citations. Use when someone asks "is this true", "fact-check this claim", "did X really happen", "verify this statistic before we publish", or pastes a quote, number, or viral post to check. Do NOT use for tracing a citation chain back to its primary origin and appraising study methodology - use…

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

Treat every claim as unproven until corroborated. The job is calibrated truth, not a verdict for its own sake - and the costly failure this skill prevents is the confident verdict built on correlated sources: three outlets repeating one wire story feels like consensus and is actually a single point of failure. "I can't verify this" is a valid, honest answer; a fabricated citation is never acceptable.

## Inputs to collect

Gather these before checking anything. If the user cannot supply one, use the default and label the assumption.

1. The exact claim, verbatim. Paraphrase later; anchor on the original wording first.
2. Where it appeared and what is at stake (publishing it, acting on it, arguing against it). Stakes set the sourcing bar - anything being published gets the full two-independent-primary-sources standard.
3. Depth and deadline. Default: full check.
4. Any sources the user already has. Treat these as leads, not evidence, until appraised.

## Operating procedure

Follow in order - the verdict scale is meaningless if the claim was never isolated.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add skillmedev/academic-researcher/fact-checker@sha256:d0f9230e2cb5ab1d

The line at the top of this page pins the label git:20261005.657a54c, 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_hfhomqrsrlbjlmah.svg)](https://markdownregistry.com/a/art_hfhomqrsrlbjlmah)

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

Versions

The registry has recorded 4 versions of this file, between Jun 19, 2026 and Oct 5, 2026, about one every 36 days.

versioncommittedcommitsizeaudit
git:20261005.657a54c latest2026-10-05 657a54c 5,996 BA view · diff
git:20260705.afb4be52026-07-05 afb4be5 5,962 BA view · diff
git:20260704.03216392026-07-04 0321639 5,998 BA view · diff
git:20260619.8a1ecd42026-06-19 8a1ecd4 1,262 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 (5996 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

skillmedev/academic-researcher · 3 stars · license MIT · pushed 2026-10-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hfhomqrsrlbjlmah
GET https://markdownregistry.com/api/v1/resolve?ref=skillmedev/academic-researcher/fact-checker
GET https://markdownregistry.com/api/v1/blob/d0f9230e2cb5ab1dc00b0c6ec4aece6ea55186ae49a9274552e700f602b7e6fb

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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Every file in skillmedev/academic-researcher

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