The human-sovereign memory vault your agents share
Agent writes default to your diff review; explicitly trusted low-risk paths still keep provenance and undo. Ships with a proven multi-agent fleet methodology — not an empty vault, a working system.
Today puts growth, actions, and automation health on the first screen; knowledge opens through dual lenses; the AI workspace lets you switch local agents and discovered models.
Local-first · Plain Markdown · Open-source core
Four things a DIY stack cannot structurally match
Obsidian + Claude Code is great — Mycel sells these four capabilities out of the box.
Capture pipeline
Phone, browser, global shortcut → E2EE relay → atomic writes. Never lose a thought.
Review governance
Diff queue, trust tiers, undo, provenance — not “read git diff yourself.”
Prompt corpus harvest
GBs of local Claude/Codex/Cursor transcripts → playbook-ready assets on your machine.
Built-in methodology
Fleet playbooks ship with Pro — how to delegate, review, and distill with agents.
From Today to the local AI workspace
Today
A local display-name greeting, 30-day growth curve, action cards, and automation health make the first screen operational.
Dual knowledge lenses
Semantic Mycelium opens by default; switch to the structure galaxy when you need topology instead of terrain.
Five navigation groups
Today, To handle, Knowledge, Tasks, and Agent keep the workspace compact without hiding the underlying tools.
AI workspace
Switch among 16 detected local agent CLIs and choose discovered models only where the local integration is verified.
Why not free Obsidian + Claude Code?
| Capability | DIY | Mycel |
|---|---|---|
| Capture | Plugins/scripts; mobile often breaks | Three surfaces + E2EE relay |
| Review UX | You maintain git/PR flow | Built-in diff queue & undo |
| Corpus harvest | Manual exports | Local agent transcripts → assets |
| Methodology | Empty vault + plugins | Fleet playbook pack included |
| Lock-in | Depends on your habits | OKF one-click export |
If you enjoy maintaining git review flows, DIY is excellent — Mycel sells the integrated system. Full comparison →
Big suites are strong — and expensive
Notion AI and peers run roughly $200+/user/year with memory locked in their cloud. Mycel Pro is a one-time buy (¥168), near one month of that seat; BYOK reuses subscriptions you already pay. Files stay on your disk. See pricing.
Three steps
Download
macOS 14+ Apple Silicon today. Auto-updates built in.
Open Today
Set your display name, see the growth curve, and use the five-group navigation: Today, To handle, Knowledge, Tasks, Agent.
Choose an agent, then review
Pick an installed agent in the AI workspace, choose a discovered model where supported, then approve a proposal from To handle.
Source and issues: github.com/Alexsun1one/mycel. Feedback: email us.