second-brain-review skillA
second-brain-review is agent-read markdown (skill) from undefined-ui/second-brain-os: Produce a periodic review of a second-brain vault: what was added, which topics are growing, what contradicts what, which questions are still open, and what is worth reading next. Use this skill whenever the user asks for a weekly or monthly review, asks what changed in their vault, what they have been learning about lately, or what they should look at next, and when a scheduled review task fires. Do NOT use for structural linting, for ingesting sources, or for answering a specific factual quest.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Review the vault Capture systems fail at the point where nothing comes back out. A review is the loop that closes: it turns a week of ingestion into something the owner reads and acts on, and it is what makes the vault feel alive rather than archival. ## Core rule A review reports on the vault, not on the agent's activity. Nobody needs to know how many tool calls ran; they need to know what they now know. ## Workflow 1. **Diff the period.** New and updated pages since the last review, from `log.md` and frontmatter dates. 2. **Find the clusters.** Which concepts gained the most links. That is where the owner's attention actually went, which is often not where they think it went. 3. **Surface contradictions** recorded during the period and still unresolved. 4. **List open questions** from concept and synthesis pages. 5. **Find the neglected.** Pages linked often but thin, or gaps in `index.md` that keep getting referenced. 6. **Recommend three things to read or write next**, each tied to a specific page. ## Output format ``` ## Week of <date> Added: <n> pages, <n> sources ingested ### Where your attention went <two or three sentences on the clusters> …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/second-brain-review@git:20260907.8c47c65mdr add undefined-ui/second-brain-os/second-brain-review@sha256:da3299a53949d27aPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_eji3kpom5yhxp4ft)
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Versions
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 (2200 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 · 296 stars · license MIT · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_eji3kpom5yhxp4ft GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/second-brain-review GET https://markdownregistry.com/api/v1/blob/da3299a53949d27a58262b542773cfb5571e2e8d3b056d5b47ad52617097fa15
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