Most product pages describe a feeling. This one lists files. Second Brain Starter is US$19, a 40% coupon is live right now, and before you decide whether that trade is worth it, here is the complete inventory — including the parts that are thin, because a store that hides its limits is asking you to do its QA for free.
The product is a vault, and it has two readers
You unzip it into Obsidian and get a working second brain: a notes/ folder where one file is one subject, an inbox/ for capture, and — the part most templates skip — instructions written for the other reader. An AGENTS.md index tells a coding agent in your terminal what this vault is, what it may write, and where things live. The design bet is that a knowledge base that only serves humans is half-used when you also have an agent sitting in the same folder all day.
The tools it ships with
| file | what it does |
|---|---|
gerar_mapa.py |
Walks your whole vault and produces MAPA.md: one line per note — title, what it is about, size, date. In the vault this workshop runs daily, reading the map instead of opening files means 1.37 MB of notes against a 9 KB index. The map states when it was generated; a stale map is treated as worse than no map. |
buscar.py |
Ranked snippet search (idf-weighted, section-aware). It returns file > section > subsection anchors instead of every matching line, so an agent can find the right paragraph without reading the whole file. |
Both ran against a throwaway vault with new folders, subfolders and accented names before release: the map generator labeled an unknown folder with its own name and the search handled an accented term, a full phrase, a custom folder, and a nonexistent term (honest message, exit code 1). Those four cases are the release test log for version 1.
The reading path
A file called INICIO-AQUI.md ("start here") walks you through setup in six steps, advertised at ten minutes. A ten-section e-book explains the method — why files beat folders, why dates are absolute, why an empty field beats a plausible guess. Fair warning, stated plainly: the e-book and tutorial are written in Portuguese; the tools and the vault's instruction files are language-neutral, and version 1 declares this instead of pretending otherwise.
Who this is not for
If you do not use Obsidian and do not run a coding agent, this product solves a problem you do not have. It is deliberately narrow: a vault, two scripts, a method. No app, no subscription, no dashboard.
Second Brain Starter — 40% off with this link
The link carries the coupon code FIELD40; the discount is applied by the store at checkout, and we verified the code server-side (40% off US$19) before writing this note.
This workshop publishes its own funnel numbers, including the zeros. The canonical link points to the original note on our site.
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