Second Brain & Knowledge Management Skills for Claude Code, Codex & AI Agents

These skills help an agent capture information, connect related material, and retrieve it later. Members cover Obsidian vaults, research cards, code and business graphs, decision records, content libraries, and memory notes.

54 skills

Explore Second Brain & Knowledge Management skills

8 skills
Nature Skills repository banner with a research robot and its literature, writing, review and figure workflows.
Free
Documents

Nature Experiment Log

Turn experiment images, voice notes and text into structured Markdown logs with YAML metadata and optional Obsidian or Feishu integration.

53.3KStars2.8KForks
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Create and edit Obsidian Bases (.base files) with views, filters, formulas, and summaries.

  • obsidian
  • databases
5.5KStars613Forks
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Create and edit Obsidian Flavored Markdown with wikilinks, embeds, callouts, properties, and other Obsidian-specific syntax.

  • obsidian
  • markdown
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Obsidian Second Brain — obsidian-second-brain: your vault, alive. 8 agents, 48 commands, free and open source. Runs on Claude Code, Codex, Gemini, OpenCode, Antigravity, Hermes, Pi, and Grok Bot, plus Crew: one logbook for Claude Code, Codex, Cursor, and Grok Bot.
Free
Productivity & automation

Obsidian Second Brain

Organize an Obsidian vault into a connected knowledge system with source ingestion, linked notes, task tracking, and agent-assisted maintenance.

5.3KStars648Forks
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Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections.

  • obsidian
  • diagrams
5.5KStars613Forks
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Create and edit Obsidian Bases (.base files) with views, filters, formulas, and summaries.

  • notes
  • obsidian
51.8KStars3.7KForks
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Interact with Obsidian vaults using the Obsidian CLI to read, create, search, and manage notes, tasks, properties, and more. Also supports plugin and theme development with commands to reload plugins, run JavaScript, capture errors, take screenshots, and inspect the DOM.

  • obsidian
  • notes
5.5KStars613Forks
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Search an Obsidian vault with QMD semantic search and locate related notes or duplicates.

  • semantic-search
  • obsidian
5.5KStars613Forks
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Related topics

How to choose Second Brain & Knowledge Management skills

Use a vault or notes skill for personal material, graph tools for relationships, and retrieval or library skills when the collection already spans many sources.

  • Turn research notes into a linked knowledge base
  • Map dependencies in an unfamiliar codebase
  • Retrieve a prior decision from a project archive