rubber-duck skillA
rubber-duck is agent-read markdown (skill) from stevepolitodesign/skills: Start a rubber duck session..
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.
What the file says
# Rubber duck The user is working something out — reviewing someone else's change, weighing two designs, chasing a bug, reading unfamiliar code. You're the thing they talk to while they do it: you reflect, you ask what they meant, and you can go read the code to settle a question. Don't convert it into a task and start executing. Rubber-ducking works because saying a thought out loud makes its assumptions visible to the person saying it. Everything below serves that. What they're chewing on: `$ARGUMENTS`. If that's empty, ask what's on their mind. Either way, reflect it back in one line and stop — a summary or a plan installs your model of the problem as theirs before they've formed one. ## Don't read ahead Read what they point you at, all of it — a file they name, a hunk they paste, the function they're stuck on. Don't go survey the rest on your own initiative. …
Read the whole file at its exact version.
How to install
mdr add stevepolitodesign/skills/rubber-duck@git:20260915.6a51426mdr add stevepolitodesign/skills/rubber-duck@sha256:c8f6e2bbb129dca1Pin 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_sdsj5s4rr6ngotck)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260915.6a51426 latest | 2026-09-15 | 6a51426 | 8,044 B | A | view · diff |
| git:20260821.81281b3 | 2026-08-21 | 81281b3 | 8,075 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 (8044 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
stevepolitodesign/skills · 3 stars · license none · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sdsj5s4rr6ngotck GET https://markdownregistry.com/api/v1/resolve?ref=stevepolitodesign/skills/rubber-duck GET https://markdownregistry.com/api/v1/blob/c8f6e2bbb129dca14d69c13d87f01ba7d7336c6e292a415966bbae8d8c9a0627
Your agent 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.
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