#1717th of 27 in Memory
obsidian-second-brain
Claude Code plugin that saves chats into a linked Obsidian vault and recalls them
- Stars
- 5.3k
- License
- MIT
- Last commit
- Nov 2026
- Last release
- Oct 2026
- Language
- Python
261 on 21 Apr 20265,300 on 10 Nov 2026
From GitHub's daily star counts.
Checked on GitHub.
Overview
A Claude Code plugin, also usable from Codex, Gemini CLI, OpenCode and others, that gives agents persistent memory in an Obsidian vault of plain Markdown. Slash commands save conversations as linked notes, ingest URLs, PDFs, Word files, audio and screenshots, and answer questions from the vault. Optional scheduled agents reconcile contradictions and write a morning brief. A separate Crew feature shares a job log across agents without Obsidian.
Who it is for: Obsidian users who want persistent memory for Claude Code or Codex
Strengths
- Notes stay as local Markdown files; core commands need no API keys
- Ingest rewrites existing pages rather than only appending new notes
- Runs in Claude Code, Codex, Gemini CLI, OpenCode and Grok Bot
- MIT licensed, with a changelog and recent releases
Weaknesses
- Large surface of about 48 commands; README suggests starting with three
- Research commands depend on external services such as Perplexity, Grok and Gemini
- Word and OpenDocument ingest needs a separate LibreOffice 26.2+ install
- Presentation and spreadsheet formats are out of scope for ingest
What it needs
- Needs Obsidian, Claude Code (or Codex, Gemini CLI, OpenCode), Python 3.10+, LibreOffice 26.2+ (Word/ODT ingest), Local Whisper (audio ingest), ffmpeg (YouTube --visual), Perplexity, Grok, Gemini (optional research)
- Models: Claude Code, Codex, Gemini CLI, OpenCode, Grok Bot
What changed
- v0.20.0 ↗ (opens in a new tab)Security fix
“Six locked dependencies had published security advisories (#356, reported by @yotamleo). uv.lock pinned certifi 2026.4.22, anyio 4.13.0, urllib3 2.7.0, pyasn1 0.6.3, httplib2 0.31.2 and idna 3.13, wh…”
From the release notes. No flag means the note does not say so, not that the upgrade is safe.
Also in Memory
See all 27| Rank | Project | Score |
|---|---|---|
| 1 | hindsightAgent memory server with retain, recall and reflect operations | 95 out of 100 |
| 2 | gbrainMemory store with sources and a knowledge graph for coding agents | 91 out of 100 |
| 3 | MemPalaceLocal verbatim memory store for AI agents with semantic search and MCP | 90 out of 100 |
| #4 | SupermemoryMemory and context engine for AI agents, with user profiles and hybrid search | 89 out of 100 |
| #5 | Mem0Long-term memory layer that stores and retrieves user facts for LLM agents | 88 out of 100 |