check-model skillA
check-model is agent-read markdown (skill) from ginlix-ai/langalpha: Audit a model somebody already built, and report on it without editing it: structure, formulas, integrity identities, source tie-out and reasonableness, ending in a routed issue log. Triggers on check my formulas, QA this spreadsheet, audit model, model review, something is off in my model, why does my balance sheet not balance..
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.
What the file says
# Model Checker
Two different things can be wrong with a model: the arithmetic, and the underwriting. A model whose formulas are flawless can still be built on a figure that contradicts the filing it cites, or on an estimate nobody refreshed after the last print. This skill tests both, and ends in a report a reader can act on rather than a list of cells.
Evidence labels, source tiers, staleness, the readiness posture and the intake limits: `.agents/skills/research-conventions/SKILL.md`, read before the first finding.
## Step 1: Ingest and scope the audit
- Accept the user's model (`.xlsx` or `.xlsm`) from `{task}/`
- Identify the model type: DCF, LBO, merger, 3-statement, comps, returns, or custom
- Map the structure: which tabs exist, how they link, where inputs live against outputs
…Read the whole file at its exact version.
How to install
mdr add ginlix-ai/langalpha/check-model@git:20260921.26f807bmdr add ginlix-ai/langalpha/check-model@sha256:449566bacde433c9Pin 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_k5azmtzywom3rpv4)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.26f807b latest | 2026-09-21 | 26f807b | 16,819 B | A | view · diff |
| git:20260915.99ad826 | 2026-09-15 | 99ad826 | 16,849 B | A | view · diff |
| git:20260826.8da358a | 2026-08-26 | 8da358a | 6,310 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 (16819 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
ginlix-ai/langalpha · 1,774 stars · license Apache-2.0 · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_k5azmtzywom3rpv4 GET https://markdownregistry.com/api/v1/resolve?ref=ginlix-ai/langalpha/check-model GET https://markdownregistry.com/api/v1/blob/449566bacde433c9e325b708682fe4a9be2554e20611b865c0b5fd916f820cb1
Your agent 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.