second-brain-write
100 / 100 · Low risk
Fine to try.
Draft from the vault: outline from concept pages, keep citations to the user's own sources, and surface where their material disagrees. Use this skill when the user wants to write an article, post, essay or newsletter based on what they have collected, or asks what they could write about a topic. Do NOT use for research reports, for writing with no grounding in the vault, or for editing text the user wrote themselves unless asked.
What this skill can do
We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'second-brain-write' ] || [ -L ~/.agents/skills/'second-brain-write' ]; then echo 'A skill folder named second-brain-write already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/undefined-ui/second-brain-os' "$d" && git -C "$d" checkout --quiet '53aea8231aff3024352e21839dc08668f7ecc0b9' -- 'skills/second-brain-write' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/second-brain-write' ~/.agents/skills/'second-brain-write' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'second-brain-write' ~/.claude/skills/'second-brain-write' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
[](https://zalavijaysinh.github.io/skilltrust/repos/undefined-ui/second-brain-os/)
Score history
| Date | Version | Score |
|---|---|---|
| 2026-11-08 | 53aea82 | 100 |
| 2026-11-07 | 53aea82 | 100 |