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SKILL.md

second-brain-write

Agent skill fromundefined-ui/second-brain-os

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.

How to install second-brain-write

install second-brain-write
# install the second-brain-os pack with the skills CLI
npx skills add undefined-ui/second-brain-os

# or add only this skill to Claude Code: copy the folder

skills/second-brain-write/

# into

~/.claude/skills/second-brain-write/ (all projects)

.claude/skills/second-brain-write/ (one project)

skills/second-brain-write/SKILL.md

MITFull file
1# Write from the vault
2
3The research is already done, cited and connected. What is left is the argument,
4and that is the part the user should keep.
5
6## Core rule
7
8Assemble structure and evidence. Do not hand back finished prose as if it were
9theirs.
10
11## Workflow
12
131. **Find the relevant concept pages** and say what they collectively argue.
142. **Surface the disagreements.** These are where the user has something to say
15 that is not the consensus view, and they are the most useful part of the
16 outline.
173. **Build the outline** from pages, each point tied to the page behind it.
184. **Mark the weak points:** claims resting on one source, self-reported
19 figures, anything the vault flags as unverified.
205. **Draft only if asked,** and say plainly that the phrasing is a first pass to
21 be rewritten in their voice.
226. **Offer to ingest the finished piece** back as a source once published.
23
24## Output format
25
26```
27Angle: <what this piece argues that the sources do not individually>
28Outline:
29 1. <point> - [[page]], [[page]]
30Weak points: <claims with thin support>
31Missing: <what would strengthen it>
32```
33
34## Calibration
35
36If every point in the outline comes from one page, this is a summary of that
37page, not an article. Say so.
38
39Never introduce a specific number or quote that has no source page behind it.
40That is the failure mode of writing with a model, and in a cited piece it is
41the one that costs the most.

Excerpt shown under the repository's MIT license.

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