Echo 2026
Run
Build the e26 runner and point it at a candidate binary (Echo 2026 suite).
Commands
cargo build -p xo -p e26
cargo run -p e26 -- --binary target/debug/xo
e26 --binary /path/to/my-echo
e26 --binary target/debug/xo --filter leaders/bind
e26 --binary target/debug/xo --update
Update
--update refreshes expectations from a known-good binary. Use it after intentional language changes. Leave unexpected failures red until the suite or the language is fixed.
Related
Spec TOC: /e26/spec. Layout: /e26/layout. Protocol: /e26/protocol. Form sheets: /docs.