personal-second-brain-and-knowledge-os SKILL.md skillA
personal-second-brain-and-knowledge-os from kina2711/data-department-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kina2711/data-department-agent-skills/personal-second-brain-and-knowledge-os@git:20260910.94a05b4Pins git:20260910.94a05b4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kina2711/data-department-agent-skills
- Path
skills/personal-second-brain-and-knowledge-os/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260910.94a05b4, committed Sep 10, 2026
- First version recorded
- Aug 14, 2026
- Size
- 5,926 bytes
- Repository stars
- 3
- License
- a license file GitHub does not identify
Build or operate a local-first AI Second Brain with 1_Nguon, 2_Wiki, 3_Toi and 4_Ket-Qua layers. Use for Obsidian or local-file knowledge systems, migration from Notion/Sheets/Lark, source ingestion, linked notes, personal context, grounded retrieval, reusable outputs, privacy, backup and freshness.
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
# Personal Second Brain and Knowledge OS ## Operating contract 1. Identify the requested deliverable, then select exactly one atomic task below. 2. Read that task file completely before acting. 3. Read [references/lifecycle-standard.md](references/lifecycle-standard.md) and use the task's profile, risk tier and execution path. 4. Load only the company context and adapter references needed for the selected task. 5. On a cross-role handoff, compare logical ID and SHA-256 in `references/shared-reference-manifest.json`; reuse an already loaded shared reference when both match instead of loading its duplicate. 6. Inspect real artifacts and systems before making change-sensitive claims. 7. Apply Definition of Ready, stage gates, test strategy, Definition of Done, approval and handoff requirements. 8. Do not invent access, approvals, successful execution, test results or business confirmation. 9. For any Git-backed mutation, regardless of the task's verb or profile, require a pre-change success/scope contract, a post-change `core-audit-change-scope`, and fresh `core-verify-deliverable` evidence before completion. …
Read the whole file at its exact version.
How to install
mdr add kina2711/data-department-agent-skills/personal-second-brain-and-knowledge-os@sha256:9daa969c39e655b7The line at the top of this page pins the label git:20260910.94a05b4, 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_q5cvs33i2qb3xji4)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 14, 2026 and Sep 10, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260910.94a05b4 latest | 2026-09-10 | 94a05b4 | 5,926 B | A | view · diff |
| git:20260831.2cfdda5 | 2026-08-31 | 2cfdda5 | 5,924 B | A | view · diff |
| git:20260819.a6c2643 | 2026-08-19 | a6c2643 | 5,716 B | A | view · diff |
| git:20260815.64401eb | 2026-08-15 | 64401eb | 4,613 B | A | view · diff |
| git:20260814.a9ef350 | 2026-08-14 | a9ef350 | 4,302 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 (5926 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
kina2711/data-department-agent-skills · 3 stars · license a license file GitHub does not identify · pushed 2026-10-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_q5cvs33i2qb3xji4 GET https://markdownregistry.com/api/v1/resolve?ref=kina2711/data-department-agent-skills/personal-second-brain-and-knowledge-os GET https://markdownregistry.com/api/v1/blob/9daa969c39e655b7eb71e57174293d0e9135532376dbb0cd864267a49783475c
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.