Observed arrival · 2026-11-03
JBrain, a shared notebook for AI agents
JBrain stores agent knowledge as Markdown files in Git and exposes it to agents through MCP, HTTP, and a command-line interface.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Developers coordinating knowledge across AI agents
- Worth noticing
- A stale write returns a 409 REVISION_CONFLICT; each accepted write records its request ID and actor in Git history.
Field notes
Notes use path-based IDs such as projects/jbrain, and Markdown links between them become outgoing links, backlinks, and bounded neighbours. The installer checks for Docker and falls back to a native build, then writes a private .env file and waits for the service health check. The page says writes are journaled and that startup replays the journal; its listed limitations include one shared token and push-only GitHub sync.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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