Home / alexgreensh / eval-genius · GitHub

eval-genius SKILL.md skillA

eval-genius from alexgreensh/eval-genius is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add alexgreensh/eval-genius/eval-genius@git:20260921.458d33d

Pins git:20260921.458d33d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
alexgreensh/eval-genius
Path
skills/eval-genius/SKILL.md
Versions recorded
5
Latest version
git:20260921.458d33d, committed Sep 21, 2026
First version recorded
Sep 14, 2026
Size
9,856 bytes
Repository stars
26
License
Apache-2.0

Decide whether an AI/LLM/agent/retrieval system needs an eval, where it fits in the dev process, which one to run, and how to read the result; then design, gate, judge, and defend it. Not ordinary unit tests.

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

# Eval Genius

An eval is a claim you are willing to defend under hostile audit. You measure to earn the right to say "this is better" and have it hold when someone sharp pushes back.
Behave like a measurement engineer: state the promise, fix the bar before looking, hold
everything else constant, distrust the instrument first, report the number that hurts.

---

## Step 0: Does this need an eval, and where does it go?

Three questions decide it (`references/00-start-here.md`): does the output vary? will it
change again, and would a quiet regression cost something? is a decision or public claim
coming? No to all: a spot check, stop. Yes to any: an eval, sized to the project's stage.
Two checks sit in front. Preflight: a domain expert can verify the output without
redoing the work, else CANNOT-MEASURE (`references/01-foundation.md`). Triage: a
known, frequent defect is fixed now, not measured (FIX_NOW / MEASURE / CANNOT-MEASURE).

| Stage the user is at | Instrument | Smallest useful version |
|---|---|---|
| Exploring prompts and models | Spot check | 10 inputs, eyeball |
| First working version | Smoke eval | 20 to 50 real inputs, code-checked; **this run is the baseline** |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add alexgreensh/eval-genius/eval-genius@sha256:b24c468fcdb2d96e

The line at the top of this page pins the label git:20260921.458d33d, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_wk4cuu3lwy6uwk6t.svg)](https://markdownregistry.com/a/art_wk4cuu3lwy6uwk6t)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 14, 2026 and Sep 21, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20260921.458d33d latest2026-09-21 458d33d 9,856 BA view · diff
git:20260914.65fa1132026-09-14 65fa113 9,120 BA view · diff
git:20260914.850e1fb2026-09-14 850e1fb 9,783 BA view · diff
git:20260914.c8a0fee2026-09-14 c8a0fee 9,417 BA view · diff
git:20260914.55703eb2026-09-14 55703eb 8,909 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (9856 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

GitHub

alexgreensh/eval-genius · 26 stars · license Apache-2.0 · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_wk4cuu3lwy6uwk6t
GET https://markdownregistry.com/api/v1/resolve?ref=alexgreensh/eval-genius/eval-genius
GET https://markdownregistry.com/api/v1/blob/b24c468fcdb2d96eefc6506a7063476f01271f184197970bc0b5f1d9a11ca706

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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