second-brain-quiz SKILL.md skillA
second-brain-quiz from undefined-ui/second-brain-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add undefined-ui/second-brain-os/second-brain-quiz@git:20260908.1615b29Pins git:20260908.1615b29 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- undefined-ui/second-brain-os
- Path
skills/second-brain-quiz/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260908.1615b29, committed Sep 8, 2026
- Size
- 1,772 bytes
- Repository stars
- 1,499
- License
- MIT
Generate questions from the user's own concept pages so they can find out what they saved but never learned, and compare their answers against what the pages say. Use this skill when the user wants to test themselves, revise, make flashcards from their notes, or asks what they have forgotten. Do NOT use for generic quizzing on a topic the vault does not cover, or for answering a question from the vault.
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
# Quiz from your own pages Reading something is not learning it. A vault of well-written pages nobody revisits is a library, and libraries do not make anyone knowledgeable. ## Core rule Questions come from the user's pages, at the depth those pages record. Never from general knowledge about the topic. ## Workflow 1. **Pick the scope:** a topic, a cluster, or pages updated recently. 2. **Write questions of two kinds:** recall of what the page states, and application of the idea to a new case. 3. **Withhold answers** until the user has attempted them. 4. **Grade against the page, not against what is true.** If they answered correctly but the page says otherwise, that is a page problem worth surfacing. 5. **Report the gaps:** which pages they could not answer from. Those are things saved and never learned. ## Output format ``` <n> questions from <n> pages 1. <question> ... [after answers] Solid: <topics> Shaky: <topics, with the pages to reread> Page problems found: <pages that are unclear or wrong> ``` ## Calibration Keep it to a handful of pages that matter. Quizzing everything ever saved is a job, not a habit. …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/second-brain-quiz@sha256:87ca8d9d70e827cbThe line at the top of this page pins the label git:20260908.1615b29, 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_4tjfg6rj7ljlixrc)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 8, 2026.
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 (1772 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
undefined-ui/second-brain-os · 1,499 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4tjfg6rj7ljlixrc GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/second-brain-quiz GET https://markdownregistry.com/api/v1/blob/87ca8d9d70e827cb11303d5b7f78a55733201aba81756090f8f065ea9016262b
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.