Capability evaluation

Every capability, live and verified.

56 public capabilities, each with exactly one owning showcase, a required interaction, and an executable browser contract. Open the live scenario that matches your job.

0.6 ms median interaction at 1,000,000 rows across 14 scenarios · 108 MB renderer heap — see the measured evidence or read the protocol.

Capability showcases

Four framework-neutral live scenarios — one subsystem each, real and editable.

Performance & scaleA million paged rows, Worker and main-thread rendering, measured medians.7 owned capabilities →
Database & document lifecycleSnapshot load, append-only IndexedDB commits, compaction, reload recovery.7 owned capabilities →
Spreadsheet interoperabilityXLSX/Excel and CSV/TSV against independent fixtures, with explicit warnings.6 owned capabilities →
Collaboration protocolTwo clients, one sequencer: presence, offline reconnect, conflicts, recovery.6 owned capabilities →

Framework workbenches

One engine, four first-party adapters — every workbench stays directly editable.