llm-eval-anti-patterns SKILL.md skillA
llm-eval-anti-patterns from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testland/qa/llm-eval-anti-patterns@git:20260728.1bce424Pins git:20260728.1bce424 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testland/qa
- Path
plugins/qa-llm-evaluation/skills/llm-eval-anti-patterns/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260728.1bce424, committed Jul 28, 2026
- First version recorded
- Jul 19, 2026
- Size
- 24,108 bytes
- Repository stars
- 11
- License
- MIT
Audits an existing LLM evaluation suite for eight methodology errors that make its numbers untrustworthy: too few cases per capability, single-provider lock-in, exact-match assertions on open-ended output, no semantic-similarity check on paraphrase-tolerant output, no baseline comparison in CI, no cost or latency ceiling, unpinned model identifiers, and no adversarial coverage. Supplies harness-neutral detection cues, the reason each error invalidates the result, a concrete fix, a…
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
# llm-eval-anti-patterns An LLM eval suite can be green and still be worthless. The failure is not in the system under test, it is in the eval definition: too few cases to distinguish signal from sampling noise, assertions that cannot fail for the right reason, no baseline to compare against, or a judge model whose verdicts have never been checked against a human. This catalog reviews the **eval definition**, not the eval run. Read the config, the test data, the assertions, and the CI job that executes them. Every finding must point at a line in one of those. ## What this owns, and what it does not | This catalog | Not this catalog | |---|---| | Reviews a suite that already exists | Building the suite, choosing a harness, or writing the first test cases | | Judges whether the suite's design can produce a trustworthy verdict | Choosing which quality metrics matter for the product | | Reports methodology defects with a severity and a fix | Ranking one model against another, or running the benchmark | If there is no eval suite yet, there is nothing here to review. If the question is "which model is better", that is a benchmarking exercise, and this …
Read the whole file at its exact version.
How to install
mdr add testland/qa/llm-eval-anti-patterns@sha256:bb0373782a75b4afThe line at the top of this page pins the label git:20260728.1bce424, 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_rtntme5sgn3cv4yu)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 19, 2026 and Jul 28, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260728.1bce424 latest | 2026-07-28 | 1bce424 | 24,108 B | A | view · diff |
| git:20260719.364dc50 | 2026-07-19 | 364dc50 | 27,050 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 (24108 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
testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rtntme5sgn3cv4yu GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/llm-eval-anti-patterns GET https://markdownregistry.com/api/v1/blob/bb0373782a75b4afbabcad0ce369b55f60eb20904a797602fd3cc8d992cdfbfb
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.