second-brain-backfill skillA
second-brain-backfill is agent-read markdown (skill) from undefined-ui/second-brain-os: Import a large archive into the vault in controlled batches: triage what is worth ingesting, process oldest first, checkpoint after every batch, and keep cost visible. Use this skill whenever the user wants to import years of bookmarks, an export from another notes app, a downloads folder, a chat history dump, or says "backfill", "bulk import", "process my archive". Do NOT use for ingesting one or a few new sources, which is second-brain-ingest..
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
# Backfill an archive A backfill is where cost and quality both go wrong quietly. Done in the wrong order it also inverts the vault's history, because later sources should update pages that earlier ones created. ## Core rule Oldest first, ten sources per batch, stop for a go-ahead between batches. ## Workflow 1. **Triage before ingesting.** Read titles and first paragraphs. Sort into worth-ingesting, keep-in-raw, and delete. Most archives are half dead links and things saved but never opened. 2. **Order by date, oldest first.** Run it the other way and every old source arrives as a contradiction against a page that already has the final answer. 3. **Batch of ten.** Ingest following `second-brain-ingest`. 4. **Checkpoint:** update `index.md`, append to `log.md`, commit with the batch range in the message, report counts. 5. **Stop and wait** before the next batch. 6. **Full lint at the end.** Large imports always leave orphans and duplicates. ## Output format ``` Batch <n>/<total>: <range> Ingested: <n> sources -> <n> new pages, <n> updated, <n> links Skipped: <n> (reason) Running total: <n> of <n> Next batch: <what it contains> ``` ## Calibration …
Read the whole file at its exact version.
How to install
mdr add undefined-ui/second-brain-os/second-brain-backfill@git:20260908.1615b29mdr add undefined-ui/second-brain-os/second-brain-backfill@sha256:66876a67dafa86b6Pin 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_epny5f2wq6elwuth)
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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 (2013 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_epny5f2wq6elwuth GET https://markdownregistry.com/api/v1/resolve?ref=undefined-ui/second-brain-os/second-brain-backfill GET https://markdownregistry.com/api/v1/blob/66876a67dafa86b67bef3b511147658370b0ea94e0b3a26c9c8507f74da6ca2e
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