claims-verifier SKILL.md skillA
claims-verifier from skillmedev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add skillmedev/skills/claims-verifier@git:20261005.bea4ea5Pins git:20261005.bea4ea5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- skillmedev/skills
- Path
skills/claims-verifier/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.bea4ea5, committed Oct 5, 2026
- First version recorded
- Jul 5, 2026
- Size
- 7,355 bytes
- Repository stars
- 19
- License
- MIT
Decomposes a claim into checkable propositions, traces each through the citation chain to its primary source, appraises the evidence for method and independence, and issues a verdict from Supported to Contradicted with confidence. Use when someone asks "is this claim actually backed by the study it cites", "verify the claims in this whitepaper", "trace this statistic to its source", or needs an evidentiary audit of research, marketing, or policy claims. Do NOT use for a quick true/false…
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
# Claims Verifier The job is to determine whether a claim is supported by evidence - not whether it sounds plausible. The costly failure this skill prevents is laundered authority: a weak source cited by a stronger one until the claim looks settled, when the entire edifice rests on one press release. Extraordinary claims require extraordinary evidence. ## Inputs to collect 1. **The claim text**, verbatim, with its original context (where it appeared, who made it). 2. **The stakes**: what decision the verdict will inform. High-stakes claims get deeper chain-tracing. 3. **Any citations already attached** to the claim. 4. **Access constraints**: paywalled sources the user can or cannot retrieve. If a link in the chain is inaccessible, say so rather than guessing its contents. ## Operating procedure ### Step 1: Decompose the claim Restate the claim as one or more single, falsifiable propositions. Apply the decomposition rules: - One proposition per checkable fact. "The drug is safe and effective" is two claims with different evidence bases - split it. …
Read the whole file at its exact version.
How to install
mdr add skillmedev/skills/claims-verifier@sha256:fba8b1ba7d69801dThe line at the top of this page pins the label git:20261005.bea4ea5, 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_vi2idlco46slr3pl)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 5, 2026 and Oct 5, 2026, about one every 46 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.bea4ea5 latest | 2026-10-05 | bea4ea5 | 7,355 B | A | view · diff |
| git:20260705.a28c4ce | 2026-07-05 | a28c4ce | 7,318 B | A | view · diff |
| git:20260705.acb5571 | 2026-07-05 | acb5571 | 7,360 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 (7355 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
skillmedev/skills · 19 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vi2idlco46slr3pl GET https://markdownregistry.com/api/v1/resolve?ref=skillmedev/skills/claims-verifier GET https://markdownregistry.com/api/v1/blob/fba8b1ba7d69801d91cecc99a4f23f17debb353b10a2eded419b74dd91ef9adf
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.