riff skillA
riff is agent-read markdown (skill) from simota/agent-skills: Brainstorming interactively to deepen ideas via four modes (Expand/Propose/Evaluate/Subtract). Does not write code. Not for decisions (Magi), feature specs (Spark), or one-shot reframing (Flux)..
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 simota/agent-skills/riff@git:20260820.ae5025amdr add simota/agent-skills/riff@sha256:d7be53900ef7a685Pin 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_w3d54ro3som6cqos)
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Versions
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 (23381 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
simota/agent-skills · 75 stars · license MIT · pushed 2026-09-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_w3d54ro3som6cqos GET https://markdownregistry.com/api/v1/resolve?ref=simota/agent-skills/riff GET https://markdownregistry.com/api/v1/blob/d7be53900ef7a68520782bab595ee83a6a8df7660151b001766e9d7ab084a6d4