How do I install the Second Brain Mapping Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/second-brain-mapping/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / Content / content-misc

Second Brain Mapping

Category: Content · Sub-category: content-misc · Last updated: 2026-05-21

Unified vault-mapping pipeline. Extracts structured metadata from every typed file in your vault (books, meetings, people, articles, goals, etc.), optionally runs knowledge-graph extraction, applies wikilinks, and surfaces cross-type insights you can't see from any single file. Zero LLM cost per run for metadata + insights. Use whenever you want to "map your second brain", refresh your vault's queryable index, or discover cross-doc patterns.

From the source SKILL.md

Your vault is a database. This skill makes it queryable.

What this skill does

Second Brain Mapping is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/second-brain-mapping/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use whenever you want to "map your second brain", refresh your vault's queryable index, or discover cross-doc patterns.

Who uses this skill

The Second Brain Mapping Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/second-brain-mapping
curl -L https://claudskills.com/skills/second-brain-mapping/SKILL.md \
  -o ~/.claude/skills/second-brain-mapping/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/second-brain-mapping/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/second-brain-mapping/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\second-brain-mapping\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/adelaidasofia/ai-brain-starter/blob/HEAD/skills/second-brain-mapping/SKILL.md
Author: adelaidasofia

Second Brain Mapping

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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