json-yaml skillA
json-yaml is agent-read markdown (skill) from bug-ops/zeph: Parse, query, transform, validate, and convert JSON and YAML data using jq and fy (fast-yaml). Use when the user asks to filter JSON arrays, extract nested fields, reshape data structures, convert between JSON and YAML formats, validate or lint YAML files, pretty-print or minify JSON, format YAML, or perform complex data transformations on structured data..
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 bug-ops/zeph/json-yaml@v1.0mdr add bug-ops/zeph/json-yaml@sha256:ebf758308b3d7b58Pin 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_tuzv45gjja6wngev)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-03-30 | c68c5de | 9,815 B | A | view · diff |
| v1.0 | 2026-03-21 | f1a698c | 9,800 B | A | view · diff |
| v1.0 | 2026-03-21 | a3fbaa5 | 9,801 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 (9815 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
bug-ops/zeph · 59 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tuzv45gjja6wngev GET https://markdownregistry.com/api/v1/resolve?ref=bug-ops/zeph/json-yaml GET https://markdownregistry.com/api/v1/blob/ebf758308b3d7b58abea760c3daa79ac6ff2dc48f922a78a5cc2c9e17418ef95
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.