- Document view - Rendered Markdown with a first-class frontmatter header, contents, backlinks, and outgoing links.
- Bundle library - Sidebar controls for opening, ordering, counting, copying, exporting, and sharing bundles.
- Graph view - The concept link-graph, colored by type.
- Search - Full-text command palette across all open bundles.
- Live sync - Bundles stay current as files change, without losing UI state.
- Diagnostics - OKF v0.1 conformance issues, surfaced not enforced.
- Recents - Previously-imported bundles are remembered for one-click reopen.
- Settings & the MCP dashboard - In-app configuration and a first-class MCP control surface.