Obsidian

Same files.A different job.

Both keep plain markdown in your own folders. The difference is what the app is for once the files are there.

Obsidian is the better second brain. This page is about the other half of the work.

The Riverside Library Workshop folder in the Ritemark sidebar, with Workshop Handout.md selected

An agent that edits the file.

Ask in plain words and it works in the document you have open, rather than answering in a chat window you then copy from.

The Ritemark sidebar with a request written in plain words

Review before anything changes.

Plan only shows what the agent intends to do. Approve it, or keep planning.

The agent's plan waiting for review, with Approve and continue or Keep planning

Where each one wins

Obsidian

Linking, graph, plugins, and years of notes that reward being connected.

Ritemark

Agents in the sidebar, recordings, spreadsheets and exports, around one document.

Both

Plain markdown in your folders, so you can run them on the same vault.

Point Ritemark at your vault.

Free and open source.