▸ expanders.
Blast radius (toggle, default on): selecting a node highlights its dependents within 3 hops — orange = direct, faded = transitive. Honest dependency-graph highlighting, not behavioral simulation.
Focus mode (toggle, off by default): hides everything outside the selected node's 1-hop neighborhood. Use when the hairball is too dense.
Stories dropdown for narrative views (Dual-World Bridge, Editor↔Engine Boundary, Silent-Failure Map, Dormant Surface, AI Pipeline, Networking Coexistence, Aspirational Docs).
Path-find: Pick A → node → Pick B → node → Show path highlights the shortest directed dep chain.
Share ↗ copies a URL that reproduces the exact current view (filters, selection, tour step, layout).
Domain chips (v2.1): click any chip to add that domain to the include set. Nothing checked = no filter (show all). Any subset checked = show only those domains. All checked = same as none. Chips lock during a story or tour — use Reset to clear.
Visual encoding: node size = LoC band; fill colour = domain (Wong colourblind-safe palette); dashed border = dormant; ⚠ = silent-failure locus; 📄 = traced. Edges (v2.1) are linear gradients from source-domain colour to target-domain colour — same-domain edges look uniform, cross-domain edges show the transition. Anomalous edges remain solid red; declared-but-unused edges remain dashed grey.
Keyboard: Esc to clear; ← → to navigate tour steps.
On mobile, tap ☰ Controls for the toolbar; the side panel becomes a bottom sheet.