os-eval-runner skillA
os-eval-runner is agent-read markdown (skill) from richfrem/agent-plugins-skills: Stateless evaluation engine that scores and gates skill improvement iterations using headless Python evaluation scripts. Use when the user says "evaluate this skill", "run autoresearch loop on", "optimize this skill", "run the eval loop", or when another agent proposes a change and needs validation..
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 richfrem/agent-plugins-skills/os-eval-runner@git:20260628.325c1b7mdr add richfrem/agent-plugins-skills/os-eval-runner@sha256:be78ba4c14e0cf65Pin 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_gx6e4uaxpduo3t4x)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260628.325c1b7 latest | 2026-06-28 | 325c1b7 | 4,025 B | A | view · diff |
| git:20260607.23c573b | 2026-06-07 | 23c573b | 25,183 B | A | view · diff |
| git:20260601.c08662d | 2026-06-01 | c08662d | 25,099 B | A | view · diff |
| git:20260427.a7c1e49 | 2026-04-27 | a7c1e49 | 25,102 B | A | view · diff |
| git:20260427.62fade3 | 2026-04-27 | 62fade3 | 25,077 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 (4025 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
richfrem/agent-plugins-skills · 6 stars · license MIT · pushed 2026-09-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gx6e4uaxpduo3t4x GET https://markdownregistry.com/api/v1/resolve?ref=richfrem/agent-plugins-skills/os-eval-runner GET https://markdownregistry.com/api/v1/blob/be78ba4c14e0cf65fb9439a88a955c04ae490063c3ab8a2b729d669181872d8d