second-brain-privacy SKILL.md skillA
second-brain-privacy 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-privacy@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-privacy/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260908.1615b29, committed Sep 8, 2026
- Size
- 1,907 bytes
- Repository stars
- 1,499
- License
- MIT
Audit the vault for material that should not be in it: credentials, other people's private information, confidential work, and anything the user would not want synced or backed up. Use this skill when the user asks about privacy, is about to share or sync the vault, has just imported chat history or meeting notes, or asks what is sensitive in their notes. Do NOT use to delete anything on your own, or as a substitute for the publishing check.
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
# Audit privacy A mature vault is one of the highest-signal documents about a person that exists, and it lives in a folder that gets synced, committed, backed up and occasionally shared. Every copy is another place the content exists. ## Core rule Find and report. Delete nothing without an explicit instruction naming what to remove. ## Workflow 1. **Scan for credentials:** API keys, tokens, passwords, connection strings. Check `.obsidian/plugins/` too, where plugin data lives. 2. **Find other people's information:** meeting transcripts, personal messages, anything told in confidence, health or financial detail about someone else. 3. **Find confidential work:** material under NDA or employer restriction. 4. **Check the git remote.** Private material in a public repo is the most expensive version of this problem. 5. **Report by severity,** with the specific file and why. ## Output format ``` Critical: <credentials, must be removed and rotated> High: <other people's private information> Review: <material the user should decide about> Repo visibility: <public | private> - <verdict> ``` ## Calibration …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/second-brain-privacy@sha256:510f811735df799fThe 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_g5a3m2aj6c2nriup)
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 (1907 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_g5a3m2aj6c2nriup GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/second-brain-privacy GET https://markdownregistry.com/api/v1/blob/510f811735df799f63cbf6898629905df9f0fdd68321be8f1a982a48689a0714
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.