second-brain-metrics SKILL.md skillA
second-brain-metrics 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-metrics@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-metrics/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260908.1615b29, committed Sep 8, 2026
- Size
- 1,697 bytes
- Repository stars
- 1,499
- License
- MIT
Record a dated snapshot of the vault's health numbers and compare against previous snapshots so trends are visible. Use this skill for a monthly or quarterly check, when the user asks whether the vault is improving, or asks to track its numbers over time. Do NOT use for a one-off graph analysis, which is second-brain-graph, or for structural repairs.
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
# Record metrics A single reading tells you almost nothing. Direction over months is the information, and nobody remembers what last quarter's orphan rate was. ## Core rule Four numbers, appended to a dated log, compared against the last entry. Never page count or word count. ## Workflow 1. **Run** `scripts/vault_stats.py` and `scripts/link_check.py`. 2. **Record:** orphan rate, average degree, component count, stale-concept rate, with the date and total pages for context. 3. **Append** to the metrics note. Never overwrite previous entries. 4. **Compare** against the last snapshot and name what moved. 5. **Interpret only what changed.** A stable number needs no commentary. ## Output format ``` <date> | pages <n> orphan rate <n>% (<+/-n> since <date>) avg degree <n> (<+/-n>) components <n> (main <n>%) stale concepts <n>% (<+/-n>) Moved: <what changed and the likely cause> Watch: <the one number to fix, or none> ``` ## Calibration A rising orphan rate with a rising page count means ingestion has stopped linking. That is the single most important pattern in this report and it should be called out explicitly, not left in the numbers. …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/second-brain-metrics@sha256:8fa637b5d5b17e20The 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_up7kai446hlknxdj)
5 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 (1697 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_up7kai446hlknxdj GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/second-brain-metrics GET https://markdownregistry.com/api/v1/blob/8fa637b5d5b17e2057c0639783898092d8917838bf50f1d6e2904d5af6cc7483
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.