obsidian-second-brain vs chat-fork-map
obsidian-second-brain is a plugin bundle for AI coding tools published by Eugeniu Ghelbur. Marketplaces we read that list it: 1 (Community GitHub marketplaces). chat-fork-map is a plugin bundle for AI coding tools published by jdneo. Marketplaces we read that list it: 1 (Copilot CLI: github/awesome-copilot). As of our marketplace pass on 2026-10-22. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  chat-fork-map | |
|---|---|---|
| Community marketplace eugeniughelbur/obsidian-second-brain | Listed Version: 0.18.1 Forks (GitHub): 592 Stars (GitHub): 4 843 Not marked · First seen |
Not listed |
| Copilot CLI: github/awesome-copilot | Not listed | Listed Version: 0.0.5 Forks (GitHub): 0 Stars (GitHub): 2 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | obsidian-second-brain | chat-fork-map |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 4 843 (better) | 2 (worse) |
| Forks (GitHub) (differs) | 592 (better) | 0 (worse) |
| Last release (differs) | 2026-10-21 | Not published |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 3 | Not published |
| Parts of the bundle (differs) | 52 | Not published |
| Licence | MIT | MIT |
| Repository (differs) | github.com/eugeniughelbur/obsidian-second-brain | github.com/jdneo/copilot-chat-map |
| Changes in the last 7 days (differs) | 3 | 0 |
| First seen (differs) | 2026-10-18 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
obsidian-second-brain
Stop re-explaining your notes to Claude. Turns your Obsidian vault into memory Claude can actually search, and keeps it true: new sources rewrite existing pages, contradictions reconcile, and stale facts get flagged. AI note-taking and PKM for Claude Code.
chat-fork-map
Maps branching Copilot conversations so parallel follow-up questions and exploration paths from complex tasks or learning can be navigated without losing context. Its visual layout makes breadth-first exploration easier than managing multiple active threads in a traditional conversation list.
How to run each
obsidian-second-brain As a Claude Code plugin
/plugin marketplace add eugeniughelbur/obsidian-second-brain
/plugin install obsidian-second-brain@obsidian-second-brainchat-fork-map
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: obsidian-second-brain · What it can do: chat-fork-map · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/github/awesome-copilot/blob/HEAD/.github/plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.