Best second brain skills for Claude Code, Codex and other agents.

Runs a bounded, source-grounded research loop that drafts a cited dossier and can propose a separately reviewed merge into an Obsidian vault.

AgriciDaniel/claude-obsidian

Creates, inspects and updates Obsidian JSON Canvas boards in a vault, with text, file, link, group and edge nodes, using safe recoverable edits.

AgriciDaniel/claude-obsidian

A skill your agent uses when someone asks to build a 3D brain, visualize their AIOS or second brain, turn their knowledge into an interactive graph, or run /3d-brain or /3D brain.

nateherkai/AIS-OS

Sets up or adopts a separate Obsidian knowledge vault through the claude-obsidian core script and routes follow-up work to the right wiki sub-skill.

AgriciDaniel/claude-obsidian

Design any process, idea, problem, or body of knowledge into an ICM (Interpretable Context Methodology) workspace — folder structure as agent architecture — or restructure an existing folder, repo…

RinDig/icm-architect

Set up a new Obsidian knowledge base with the LLM Wiki pattern.

NicholasSpisak/second-brain

Creates a bounded, extractive rollup of recent Obsidian wiki log entries, previewed by default, with one optional apply step and no changes to child pages.

AgriciDaniel/claude-obsidian

Initialize a PM Brain — a markdown-native second brain for a product operator (PM, product lead, founder, or anyone accountable for one product or initiative) doing judgment-heavy work with…

phuryn/pm-brain

Adds a persistent wiki knowledge base to a NanoClaw group following Karpathy's LLM Wiki pattern, with folders, a tailored container skill and a CLAUDE.md section.

nanocoai/nanoclaw

Converts PDFs, text, web pages or a codebase into an Obsidian vault of study notes, practice questions, or a developer onboarding guide.

bevibing/tutor-skills

Use SwarmVault when the user needs a local-first knowledge vault that writes durable markdown, graph, search, dashboard, review, chat-session, context-pack, task-ledger, static AI export, retrieval…

swarmclawai/swarmvault

Tracks three-year, yearly, monthly, and weekly goals in linked Markdown files, calculating completion percentages and flagging stalled goals.

ballred/obsidian-claude-pkm

A skill your agent uses when building or maintaining a personal knowledge base with LLM assistance.

SherwinQ/karpathy-wiki

Pull metadata from YouTube subscription videos into a second-brain vault as a real cross-linked knowledge graph — not just a flat archive.

EfficientStreet/youtube-subscriptions-ingest

Explains, drafts and validates Obsidian Bases .base files, building filters, formulas and table, card or list views, and applying edits only through one inspected transaction.

AgriciDaniel/claude-obsidian

Provides access to the user's personal wiki, including notes, research, project documentation, decisions, and archived knowledge.

MartinLwx/dotfiles

Health-check the wiki for contradictions, orphan pages, stale claims, and missing cross-references.

NicholasSpisak/second-brain

Turns PDFs, slides, syllabi, papers and transcripts into structured, teaching-quality Obsidian notes, matching how much structure is built to how much the material needs.

Michael-OvO/obsidian-knowledge-agent

Walks the user through Charlie Hills's AI Second Brain + Karpathy Wiki setup from the MarTech AI newsletter.

charlie947/ai-second-brain

Maintains a project-scoped Obsidian research knowledge base: bootstrapping its folders, routing notes, updating hub, plan and index notes, and linting.

Galaxy-Dawn/claude-scholar

Captures and searches personal notes in a self-hosted Open Brain using plain curl calls over HTTP, for setups where MCP is disabled or blocked.

NateBJones-Projects/OB1

Reads, creates and edits notes in an Obsidian vault while preserving wiki-links, YAML frontmatter, tags and template variables.

ballred/obsidian-claude-pkm

Sets up, evaluates or turns off Open Second Brain's optional decision-model feature, starting from the o2b decision-model check command and a provider route you choose.

itechmeat/open-second-brain

Answer any question about Baalda (the team second-brain app at baalda.com) in plain, non-technical language — what it is, what it can and cannot do, which file formats it supports (Markdown, images…

naveedharri/baalda

Assigns and checks Luhmann-style codes for book manuscript notes and Obsidian card folders without renumbering existing notes.

twhsi/skills

Maintain a persistent AI-tended research wiki. An agent skill from frankchu91/mindbase-llm-wiki.

frankchu91/mindbase-llm-wiki

Answer questions against the knowledge base wiki. An agent skill from NicholasSpisak/second-brain.

NicholasSpisak/second-brain

Creates, tracks and archives projects linked to yearly goals in an Obsidian vault, with a status dashboard and a CLAUDE.md context file for each project.

ballred/obsidian-claude-pkm

Searches and writes a company-wide knowledge brain through the gbrain CLI, so durable decisions and facts about people, projects and history stay findable beyond one session.

garrytan/gbrain

Files a specific answer, decision or insight you point to in a conversation as one reviewed note in your Obsidian vault, and only when you ask for it.

AgriciDaniel/claude-obsidian

Personalized 6-month action plan to land a $100K AI job or equivalent income.

ayush488-glitch/ai-career-planner-skill

Diagnose and repair a broken or non-standard agent-second-brain install/migration.

smixs/agent-second-brain

Guide users through setting up a personal LLM-maintained wiki — a persistent, compounding knowledge base where the LLM incrementally builds and maintains interlinked markdown pages from raw sources.

infranodus/skills

Creates new Obsidian Canvas files, either blank with a starter structure or from one of 12 templates such as flowchart, mind map, kanban or timeline.

AgriciDaniel/claude-canvas

Use sift-kg as an AI second brain — a persistent knowledge graph your agent operates from across sessions.

juanceresa/sift-kg

Sets up, audits or incrementally upgrades a local Obsidian vault for knowledge work and content production, without overwriting or moving existing notes.

imraywang/rayskills

When you paste raw human input — a call transcript (Grain, Zoom, Granola, Fathom), a text or email from a client/partner/friend, a voice-memo dump, or meeting notes — and want it converted into…

coreyhaines31/makerskills

Updates an obsidian-claude-pkm vault's system files to the latest version, with a backup, per-file diff review and no changes to your own notes.

ballred/obsidian-claude-pkm

Build or revise private, cited Markdown notes from the user's WeChat history in the current agent session.

bojieli/greenbubbles

Kill the running Baalda desktop (Tauri) dev instance AND the backend server, then launch fresh instances of both.

naveedharri/baalda

A skill your agent uses when creating or refreshing a product builder's personal profile in 8-System/about.md - supports both assessment-based (Gallup, DISC, MBTI) and interview-based onboarding

superhero-tech/super-brain

Audit any second brain, notes folder, or agent memory for facts that have quietly stopped being true, then fix the worst one so it stops recurring.

coleam00/skills

Process raw source documents into wiki pages. An agent skill from NicholasSpisak/second-brain.

NicholasSpisak/second-brain

Guides a newcomer to Basic Memory through designing a personal knowledge system, then teaches its use and sets up their assistant to load it each session.

basicmachines-co/basic-memory

Run Baalda's real desktop UI in a local browser with synthetic vault data to preview Windows or macOS layouts, investigate visual bugs, and capture screenshots from a Mac.

naveedharri/baalda

Detects and uses the official Obsidian command-line interface for read-only vault access, falling back to direct file reads, while all mutations stay on a separate transaction core.

AgriciDaniel/claude-obsidian

Answers the six everyday life questions (my goals, what to focus on, the weekly priorities, the highlight of today, my key elements, what has my…

myICOR/myPKA

Work through open findings in the latest lint report one at a time — propose a fix, apply on approval, skip on rejection.

PieroSierra/SecondBrain