vault-system SKILL.md skillA

vault-system from mycelium-hq/ai-brain-starter is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mycelium-hq/ai-brain-starter/vault-system@git:20260829.e8236e7

Pins git:20260829.e8236e7 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mycelium-hq/ai-brain-starter
Path
skills/vault-system/SKILL.md
Versions recorded
4
Latest version
git:20260829.e8236e7, committed Aug 29, 2026
First version recorded
Jun 27, 2026
Size
5,417 bytes
Repository stars
50
License
MIT

Use when maintaining the vault ITSELF as a system, not its content: knowledge-graph build/rebuild/query (graphify), second-brain mapping, vault diagnose/audit/hygiene, drift detection, extract rules from vault, backfill journals, setup vault types, consolidate memory (index over cap), Obsidian tooling (CLI/Bases/Markdown/JSON Canvas), vault bloat or Obsidian slow. Answering questions FROM the graph, use graph-query tools; daily journal/coaching/pattern detection, use those skills.

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

# Vault system

Routes **vault meta-maintenance** — the vault AS a system (its markdown corpus, knowledge graph, drift monitors, rule extraction, substrate sync). Not the content; the substrate that makes the content queryable and auditable.

**Distinct from:**
- Querying the vault to answer a question (use the knowledge-graph query tools)
- Bringing external data INTO the vault (use the ingest skills)
- Daily journal + coaching + pattern detection (those operate inside the substrate)

This is the SUBSTRATE layer. It maintains what every other skill uses.

## Step 1. Identify the maintenance moment

| Trigger | Skill / tool |
|---|---|
| Knowledge graph stale or never built for a corpus | `graphify` |
| Existing graph query (find concept / path / cluster) | your graph-query tool, or Obsidian graph view |
| Typed-file metadata extraction (books, meetings, people, articles, goals) | `second-brain-mapping` |
| Vault self-check (CLAUDE.md / Meta folder / skills / hooks / MCPs / journal index) | `diagnose` |
| Files edited many times in a short window (drift hotspot) | a drift-detection pass → a Drift Audit note |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mycelium-hq/ai-brain-starter/vault-system@sha256:4dbd1894cfb163df

The line at the top of this page pins the label git:20260829.e8236e7, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_4yjx3e3s6jjvl3rd.svg)](https://markdownregistry.com/a/art_4yjx3e3s6jjvl3rd)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Jun 27, 2026 and Aug 29, 2026, about one every 21 days.

versioncommittedcommitsizeaudit
git:20260829.e8236e7 latest2026-08-29 e8236e7 5,417 BA view · diff
git:20260707.f0ac9032026-07-07 f0ac903 5,272 BA view · diff
git:20260703.aecf7742026-07-03 aecf774 5,503 BA view · diff
git:20260627.cf0678b2026-06-27 cf0678b 5,489 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5417 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

GitHub

mycelium-hq/ai-brain-starter · 50 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4yjx3e3s6jjvl3rd
GET https://markdownregistry.com/api/v1/resolve?ref=mycelium-hq/ai-brain-starter/vault-system
GET https://markdownregistry.com/api/v1/blob/4dbd1894cfb163dfcb26dccc33d5920c9a5e13b5d3f84177a848ffafa28f66a9

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.

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