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Hacker News
5/10

AgentNotes

A personal notebook where notes automatically trigger their own follow-up actions.

Target user

Writers, researchers, and content creators managing sprawling personal knowledge

Features
  • Write notes for humans; the app quietly tags and structures them for AI agents
  • Proactive agent suggestions like 'this travel note is missing a dinner reservation, want me to check OpenTable?'
  • Note-in, task-out workflows so meeting notes create calendar events and reading notes queue up posts
  • Offline-first Markdown storage that runs against local LLMs for privacy
Why now

Personal AI agents are arriving fast; the bottleneck is feeding them high-quality, structured personal context that notes apps do not currently expose.

Signals · overall 5/10
Demand
5/10

HN traction for Hubble was modest (18 points in current snapshot, not 125) and adjacent 'AI notetaker' search results skew toward meeting transcription (Otter, Supernormal, ifolabs) rather than agentic personal notebooks — niche but real interest.Hubbele: Open-source notetaking app for you and your agents | Hacker NewsMost notable AI notetakers 2025 - supernormal.com

Whitespace
4/10

Direct competitor Hubble.md ships the exact 'notes for you and your agents' pitch as open-source, and Obsidian already has an 'AI Agents' community plugin plus Smart Connections — the space is crowded, not wide open.GitHub - bholmesdev/hubble.md: The best notepad for you and your agentsAI Agents - Obsidian Plugin

Monetization
4/10

Hard to monetize against a free open-source rival (Hubble) and mostly free Obsidian community plugins; while PKM users do pay for Bear/Craft/Notion, charging specifically for agent-triggered follow-ups is an unproven premium wedge.Hubble.mdObsidian + AI: From Simple Plugin to Full Agent Integration

Longevity
7/10

AI-agent integration with personal knowledge is a durable multi-year trend; multiple 2026-dated comparison guides already treat it as a settled product category, suggesting staying power.AI Automation Agency Guide: Notion vs Obsidian 2026

Feasibility
5/10

Doable but non-trivial: needs a real markdown editor, agent plumbing, and reliability — and Hubble.md already provides a reference implementation, reducing the build-vs-buy advantage but raising the bar to ship something noticeably better.GitHub - bholmesdev/hubble.md: The best notepad for you and your agents

Hubble: Open-source notetaking app for you and your agents · 125 points · 57 commentsHacker News · 2026-07-29 (today)