fact-check skillB
fact-check is agent-read markdown (skill) from yennanliu/investskill: Claim-level verification of any report or data set — extract every figure and factual claim, check each against a primary source (SEC filing, company IR, FRED, exchange data, or the user's own document), recompute derived numbers, mark ✅ verified / ⚠️ mismatch / ❓ unverifiable, and re-issue the report with inline citations and a References section; Verification Score 0–10.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add yennanliu/investskill/fact-check@git:20260924.abdb9acmdr add yennanliu/investskill/fact-check@sha256:dc75e80b8e40f103Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_sswkojmbq5f7baao)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.abdb9ac latest | 2026-09-24 | abdb9ac | 25,961 B | B | view · diff |
| git:20260924.827f42c | 2026-09-24 | 827f42c | 25,513 B | B | view · diff |
| git:20260924.27bf710 | 2026-09-24 | 27bf710 | 24,345 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a name
- pass: Frontmatter block present
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (25961 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
yennanliu/investskill · 221 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sswkojmbq5f7baao GET https://markdownregistry.com/api/v1/resolve?ref=yennanliu/investskill/fact-check GET https://markdownregistry.com/api/v1/blob/dc75e80b8e40f103d7132012f7844d3b33384a3d1a240f01150c978dc02e29f7
Your agent does the deals. You hear about the good ones. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.