blog-factcheck SKILL.md skillA
blog-factcheck from agricidaniel/claude-blog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agricidaniel/claude-blog/blog-factcheck@git:20260709.9bf0b3ePins git:20260709.9bf0b3e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agricidaniel/claude-blog
- Path
brain/.raw/sources/claude-blog-skill/skills/blog-factcheck/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260709.9bf0b3e, committed Jul 9, 2026
- Size
- 8,668 bytes
- Repository stars
- 2,434
- License
- MIT
Verify statistics and claims in blog posts by fetching cited source URLs and checking if the claimed data actually appears on the page. Extracts all load-bearing claims (statistics, product or policy claims, ranking and comparative claims, named sources), validates cited URLs before fetching, and scores match confidence (exact match 1.0, paraphrase 0.7-0.9, not found 0.0). Flags uncited claims as UNVERIFIED. Use when user says "fact check", "verify statistics", "check sources…
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
# Blog Fact-Check Verify statistics, claims, and source attributions in blog posts. Pure Claude pipeline with no external NLP dependencies. ## Workflow ### Step 1: Read the Blog Post Read the target file and identify all sections containing data or other load-bearing claims. ### Step 2: Extract Load-Bearing Claims Scan the full text for every claim that would need evidence if challenged. Include numeric claims and non-numeric load-bearing claims such as policy, product, ranking, methodology, legal, comparative, "best", "first", "latest", or platform-behavior statements. Build a claims list with these fields: | Field | Description | |-------|-------------| | claim_text | The exact sentence or phrase containing the claim | | claim_type | Statistic, policy, product, ranking, comparative, legal, methodology, freshness | | value | The numeric value if present (e.g., "42%", "$1.2M", "3x") | | attribution | Named source if present (e.g., "HubSpot", "Gartner 2025") | | url | Cited URL if present (from markdown link or parenthetical) | | location | Heading or line number where the claim appears | ### Step 3: Verify Cited Claims For each claim that includes a URL: …
Read the whole file at its exact version.
How to install
mdr add agricidaniel/claude-blog/blog-factcheck@sha256:3cf3639e2d6d5abcThe line at the top of this page pins the label git:20260709.9bf0b3e, 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.
[](https://markdownregistry.com/a/art_yjor62aqr4joeiz3)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 9, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8668 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
agricidaniel/claude-blog · 2,434 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yjor62aqr4joeiz3 GET https://markdownregistry.com/api/v1/resolve?ref=agricidaniel/claude-blog/blog-factcheck GET https://markdownregistry.com/api/v1/blob/3cf3639e2d6d5abc424a73c6ba9a494839addd82f0c589aef92b347f4ba944fa
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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