Documentation & knowledge

Link docs to code. Create a RAG layer the AI uses.

Write architecture notes with Mermaid diagrams and Excalidraw sketches. Link them to components, tasks, or rules. When the AI queries code, it gets code + linked docs automatically.

Get started See RAG layer →

Note editor with Markdown, Mermaid, and entity linking

The RAG layer

Documentation travels with code automatically

RAG context bundle — Context bundle: code + relationships + notes + rules

Entity linking

Link notes to components, files, directories, tasks, rules. Bidirectional links with strength (primary/secondary/reference).

Markdown and Mermaid diagrams — Markdown with live-rendered Mermaid diagrams

Excalidraw UI mockups — Excalidraw sketches for UI mockups and wireframes

Markdown + Mermaid + Excalidraw

Full GitHub-flavored Markdown. Mermaid diagrams. Excalidraw sketches. Code blocks with syntax highlighting.

Block-level parsing

Felix splits notes into addressable blocks. Semantic search returns specific sections, not entire documents.

Automatic inclusion

When AI queries a component, Felix returns: source + relationships + linked notes + applicable rules.

Workflow requirements

Workflows can require specific note types. AI must create architecture notes, ERDs, API contracts before coding.

Tags and hierarchy

Organize with tags and parent-child relationships. Tags auto-degrade when unused for 30+ days.

Next: Rules engine

Context-aware rules that inject guidance and track effectiveness.

Explore rules →