Add obsidian-second-brain (Claude Code skill) to External Tools/Other

[eugeniughelbur]

Adds obsidian-second-brain to the External Tools / Other section.

What it is: a 31-command Claude Code skill that operates an Obsidian vault as an AI-first second brain. It writes to plain markdown vault files (no proprietary database, no vendor lock-in), making it a natural fit for the External Tools list.

What's included:

• 21 vault operations commands (save, daily, log, project, person, decide, capture, find, recap, review, board, health, ingest, synthesize, reconcile, export, init, etc.)
• 4 thinking tools that argue with you using your own notes (challenge, emerge, connect, graduate)
• 1 context engine (world)
• 5 research commands (x-read, x-pulse, research, research-deep, youtube)
• 4 scheduled agents (morning, nightly, weekly, health-check)
• 1 background agent (PostCompact hook)

License: MIT

Style match: appended to the end of the Other section per CONTRIBUTING.md guidelines.

Recent traffic: 5,960 page views from 2,692 unique visitors over 14 days (per GitHub Insights). Already getting cited by AI search engines (ChatGPT, Claude, Perplexity).