fact-check SKILL.md skillA
fact-check from scdenney/open-science-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add scdenney/open-science-skills/fact-check@git:20261008.697c89fPins git:20261008.697c89f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- scdenney/open-science-skills
- Path
plugin/skills/fact-check/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261008.697c89f, committed Oct 8, 2026
- First version recorded
- Jun 14, 2026
- Size
- 12,377 bytes
- Repository stars
- 69
- License
- a license file GitHub does not identify
Checks whether each claim in a manuscript is supported by the source it cites, reading the project's per-source Markdown knowledge base. Flags contradicted, unsupported, overclaimed, out-of-scope, and misattributed claims with verbatim source quotes. Runs citation-check first, and stops at a pre-flight gate when the knowledge base is missing, incomplete, or holds unconverted PDFs. Use to verify that a draft's claims match the sources it cites.
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
# Claim–Source Fact Checker This skill extends `citation-check` (which verifies a citation *exists*, resolves, and is formatted) to the next question: does the cited *source* actually support the *claim* it is attached to? It checks claims against the project's **per-source Markdown knowledge base** — one Markdown file per cited source, each converted or summarized to `sources/md/<author>-<year>-<slug>.md` by whatever intake workflow the project uses. This is local-source verification, not open-web fact-checking: it audits whether a manuscript's sentences are backed by the documents the author has actually read and filed. Run once a draft has citations and a populated knowledge base. ## Instructions ### 1. Pre-flight gate — orient, then refuse if the knowledge base is not ready **Orient.** Identify the inputs: - **Manuscript source:** LaTeX, Markdown, Word/PDF text, or pasted prose with citations or footnotes. - **Bibliography:** `.bib`, CSL JSON, or reference list — used to resolve cite keys to author-year-title so source files can be found. …
Read the whole file at its exact version.
How to install
mdr add scdenney/open-science-skills/fact-check@sha256:0d070d6f83408bb6The line at the top of this page pins the label git:20261008.697c89f, 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_lbi6uqf3ltygikiu)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Jun 14, 2026 and Oct 8, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261008.697c89f latest | 2026-10-08 | 697c89f | 12,377 B | A | view · diff |
| git:20260930.699726d | 2026-09-30 | 699726d | 13,796 B | A | view · diff |
| git:20260917.d88ee2d | 2026-09-17 | d88ee2d | 11,734 B | A | view · diff |
| git:20260909.08bf795 | 2026-09-09 | 08bf795 | 11,703 B | A | view · diff |
| git:20260808.e9e2c11 | 2026-08-08 | e9e2c11 | 11,746 B | A | view · diff |
| git:20260702.539af7b | 2026-07-02 | 539af7b | 11,566 B | A | view · diff |
| git:20260614.0bed599 | 2026-06-14 | 0bed599 | 11,566 B | A | view · diff |
| git:20260614.bab5342 | 2026-06-14 | bab5342 | 8,542 B | A | view |
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 (12377 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
scdenney/open-science-skills · 69 stars · license a license file GitHub does not identify · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lbi6uqf3ltygikiu GET https://markdownregistry.com/api/v1/resolve?ref=scdenney/open-science-skills/fact-check GET https://markdownregistry.com/api/v1/blob/0d070d6f83408bb679dcbec5bba30216d561cd3a00a86204bfecf53ab7d3212e
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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