Skip to main content
ClaudeWave
eugeniughelbur avatar
eugeniughelbur

obsidian-second-brain

View on GitHub

Cross-CLI skill for Obsidian: turn your vault into a living AI-first second brain across Claude Code, Codex, Gemini, and OpenCode. 43 commands - now with /obsidian-architect to document your codebase, key-less web research, Google Calendar, and self-rewriting notes.

Skills2.4k stars279 forksPythonMITUpdated today
Editor's note

Obsidian Second Brain is a Claude Code skill that extends an Obsidian vault with 44 slash commands, turning it into an AI-managed knowledge base that rewrites and reconciles notes rather than simply appending to them. It installs into Claude Code as a skill set and also runs on Codex CLI, Gemini CLI, and OpenCode, sharing a single Python codebase across all four. Core capabilities include research commands such as `/research-deep` (which pulls live results via Perplexity and Grok), `/x-read` and `/x-pulse` for X content, `/youtube` and `/podcast` for media transcription, and `/notebooklm` for querying the vault itself via Gemini File Search. The v0.10 addition `/obsidian-architect` scans a codebase and writes refreshable architecture notes into the vault without overwriting user edits. Four scheduled agents, Google Calendar integration, anti-hallucination validators, and a `/create-command` interview flow round out the toolkit. Researchers, developers, and knowledge workers who already use Obsidian and want AI to actively maintain and synthesize their vault over time are the primary audience.

ClaudeWave Trust Score
100/100
Verified
Passed
  • Open-source license (MIT)
  • Actively maintained (<30d)
  • Healthy fork ratio
  • Clear description
  • Topics declared
  • Documented (README)
Last scanned: 6/11/2026
Install as a Claude Code skill
Method: Clone
Terminal
git clone https://github.com/eugeniughelbur/obsidian-second-brain ~/.claude/skills/obsidian-second-brain
1. Clone the repository into your ~/.claude/skills directory (or copy the skill folder containing SKILL.md).
2. Start a new Claude Code session so the skill registry reloads.
3. Invoke it by name, or let Claude trigger it automatically when the task matches.
💡 If the repo bundles several skills, copy only the folders you need.

24 items in this repository

create-commandSlash Command

Create a new obsidian-second-brain command via interview - zero markdown editing required

Install
idea-discoverySlash Command

Surface 3-5 next-direction candidates by reading ungraduated ideas, open project questions, and orphan research notes - what is worth working on next

Install
notebooklmSlash Command

Vault-first source-grounded research via Gemini File Search. One command, no browser. The grounded parallel to /research-deep (which is open-web via Perplexity).

Install
obsidian-adrSlash Command

Generate a decision record when the vault structure changes - the vault knows why it knows what it does

Install
obsidian-agendaSlash Command

Read Google Calendar and write an AI-first snapshot to the vault - today, week, next week, or a custom range

Install
obsidian-architectSlash Command

Scan a codebase and write a maintained set of architecture notes into the vault - overview, per-module notes, key decisions. Re-run to refresh without clobbering your edits

Install
obsidian-boardSlash Command

Show or update a kanban board - flags overdue items, updates from conversation

Install
obsidian-calendarSlash Command

Reconcile the vault against your calendar - flag deadlines and commitments implied by notes that are not on the calendar. Flag only, never adds events

Install
obsidian-captureSlash Command

Quick idea capture - zero friction, saves to Ideas/ and mentions in daily note

Install
obsidian-challengeSlash Command

Red-team your current idea against your own vault history - finds contradictions, past failures, and flawed assumptions

Install
obsidian-connectSlash Command

Bridge two unrelated domains using your vault's link graph - forces creative friction to spark new ideas

Install
obsidian-dailySlash Command

Create or update today's daily note - pulls calendar events, overdue tasks, and conversation context

Install
obsidian-decideSlash Command

Extract decisions from this conversation and log them to the right project notes

Install
obsidian-emergeSlash Command

Surface unnamed patterns from your recent notes - recurring themes, hidden connections, and conclusions you haven't explicitly stated

Install
obsidian-exportSlash Command

Export a clean structured snapshot of the vault that any agent or tool can consume - flat JSON or markdown index

Install
obsidian-findSlash Command

Smart vault search - returns results with context, not just filenames

Install
obsidian-graduateSlash Command

Promote an idea fragment into a full project spec with tasks, board entries, and structure

Install
obsidian-healthSlash Command

Run a vault health check - grouped by severity, detects contradictions, concept gaps, stale claims, and structural issues

Install
obsidian-ingestSlash Command

Ingest a source into the vault - the vault rewrites itself around new knowledge. Every ingest updates entities, rewrites stale claims, synthesizes new concepts, and resolves contradictions.

Install
obsidian-initSlash Command

Scan your vault and generate a _CLAUDE.md operating manual, index.md catalog, and log.md pointer

Install
obsidian-learnSlash Command

Review vault learnings, prune stale ones, surface active patterns - the vault's lessons compound or expire

Install
obsidian-logSlash Command

Log this work or dev session to the vault - infers project from context

Install
obsidian-meetingSlash Command

Generate a meeting note in the vault from a Google Calendar event - pre-fills attendees, time, and link so notes/decisions/action items can be captured

Install
Use cases

Skills overview

README preview not available. Visit the repo on GitHub for full documentation.
ai-agentai-agentsai-automationai-researchai-toolsanthropicclaudeclaude-aiclaude-codeclaude-code-skillclaude-skillknowledge-managementllm-toolsnote-takingobsidianobsidian-mdobsidian-pluginobsidian-skillpersonal-knowledge-managementsecond-brain

What people ask about obsidian-second-brain

What is eugeniughelbur/obsidian-second-brain?

+

eugeniughelbur/obsidian-second-brain is skills for the Claude AI ecosystem. Cross-CLI skill for Obsidian: turn your vault into a living AI-first second brain across Claude Code, Codex, Gemini, and OpenCode. 43 commands - now with /obsidian-architect to document your codebase, key-less web research, Google Calendar, and self-rewriting notes. It has 2.4k GitHub stars and was last updated today.

How do I install obsidian-second-brain?

+

You can install obsidian-second-brain by cloning the repository (https://github.com/eugeniughelbur/obsidian-second-brain) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.

Is eugeniughelbur/obsidian-second-brain safe to use?

+

Our security agent has analyzed eugeniughelbur/obsidian-second-brain and assigned a Trust Score of 100/100 (tier: Verified). See the full breakdown of passed checks and flags on this page.

Who maintains eugeniughelbur/obsidian-second-brain?

+

eugeniughelbur/obsidian-second-brain is maintained by eugeniughelbur. The last recorded GitHub activity is from today, with 3 open issues.

Are there alternatives to obsidian-second-brain?

+

Yes. On ClaudeWave you can browse similar skills at /categories/skills, sorted by popularity or recent activity.

Deploy obsidian-second-brain to your cloud

Ship this repo to production in minutes. Each platform spins up its own environment with editable env vars.

Maintain this repo? Add a badge to your README

Drop the badge into your GitHub README to show it's tracked on ClaudeWave. Each badge links back to this page and reflects the live Trust Score.

Featured on ClaudeWave: eugeniughelbur/obsidian-second-brain
[![Featured on ClaudeWave](https://claudewave.com/api/badge/eugeniughelbur-obsidian-second-brain)](https://claudewave.com/repo/eugeniughelbur-obsidian-second-brain)
<a href="https://claudewave.com/repo/eugeniughelbur-obsidian-second-brain"><img src="https://claudewave.com/api/badge/eugeniughelbur-obsidian-second-brain" alt="Featured on ClaudeWave: eugeniughelbur/obsidian-second-brain" width="320" height="64" /></a>

More Skills

farion1231
cc-switch
yesterday

A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Gemini CLI & Hermes Agent. Only official website: ccswitch.io

99.4k6.6kRust
Skillsai-toolsclaude-codeInstall
code-yeongyu
oh-my-openagent
today

omo/lazycodex: The coding agent for tokenmaxxers;the one and only agent harness for complex codebases. For your Codex, for your OpenCode

62k5kTypeScript
Skillsaiai-agentsInstall
Egonex-AI
Understand-Anything
yesterday

Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.

58.2k4.8kTypeScript
Skillsantigravity-skillsbusiness-knowledgeInstall
K-Dense-AI
scientific-agent-skills
today

Turn any AI agent into an AI Scientist. The #1 Agent Skills library for science, used by 160,000+ scientists worldwide. 140 ready-to-use skills plus 100+ scientific databases covering biology, chemistry, medicine, and drug discovery. Compatible with Cursor, Claude Code, Codex, Antigravity, and the open Agent Skills standard.

28.1k2.9kPython
Skillsagent-skillsai-scientistInstall
VoltAgent
awesome-agent-skills
today

A curated collection of 1000+ agent skills from official dev teams and the community, compatible with Claude Code, Codex, Gemini CLI, Cursor, and more.

25.2k2.7k
Skillsagent-skillsai-agentsInstall
JimLiu
baoyu-skills
today

No description provided.

21.4k2.5kTypeScript
Skillsagent-skillsclaude-skillsInstall