fact-checker SKILL.md skillA

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

Install it, pinned

mdr add nicepkg/ai-workflow/fact-checker@git:20260118.be84779

Pins git:20260118.be84779 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: nicepkg/ai-workflow
Path: workflows/content-creator-workflow/.claude/skills/fact-checker/SKILL.md
Versions recorded: 1
Latest version: git:20260118.be84779, committed Jan 18, 2026
Size: 8,229 bytes
Repository stars: 291
License: MIT

Verifies factual claims in documents using web search and official sources, then proposes corrections with user confirmation. Use when the user asks to fact-check, verify information, validate claims, check accuracy, or update outdated information in documents. Supports AI model specs, technical documentation, statistics, and general factual statements.

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 in documents and propose corrections backed by authoritative sources.

## When to use

Trigger when users request:
- "Fact-check this document"
- "Verify these AI model specifications"
- "Check if this information is still accurate"
- "Update outdated data in this file"
- "Validate the claims in this section"

## Workflow

Copy this checklist to track progress:

```
Fact-checking Progress:
- [ ] Step 1: Identify factual claims
- [ ] Step 2: Search authoritative sources
- [ ] Step 3: Compare claims against sources
- [ ] Step 4: Generate correction report
- [ ] Step 5: Apply corrections with user approval
```

### Step 1: Identify factual claims

Scan the document for verifiable statements:

**Target claim types:**
- Technical specifications (context windows, pricing, features)
- Version numbers and release dates
- Statistical data and metrics
- API capabilities and limitations
- Benchmark scores and performance data

**Skip subjective content:**
- Opinions and recommendations
- Explanatory prose
- Tutorial instructions
- Architectural discussions

### Step 2: Search authoritative sources

For each claim, search official sources:

**AI models:**
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add nicepkg/ai-workflow/fact-checker@sha256:898b569d4a2c57ab

The line at the top of this page pins the label git:20260118.be84779, 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](https://markdownregistry.com/badge/art_v3htz7yi5cwpap73.svg)](https://markdownregistry.com/a/art_v3htz7yi5cwpap73)

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

Versions

The registry has recorded 1 version of this file, committed on Jan 18, 2026.

version	committed	commit	size	audit
git:20260118.be84779 latest	2026-01-18	be84779	8,229 B	A	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 (8229 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

nicepkg/ai-workflow · 291 stars · license MIT · pushed 2026-01-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_v3htz7yi5cwpap73
GET https://markdownregistry.com/api/v1/resolve?ref=nicepkg/ai-workflow/fact-checker
GET https://markdownregistry.com/api/v1/blob/898b569d4a2c57abdf10f4b0f264c5be5d8dc17c57e6efbf8d1e4b52a37ad80f

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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