id_effect_cli

Thin helpers for building CLIs whose bodies are Effect programs, aligned with Phase E — CLI ergonomics:

• Map Exit / Cause to [std::process::ExitCode].
• Optional clap (feature clap, on by default).
• run_main — optional tracing install via install_tracing_layer, then run_blocking, then stderr logging and exit code mapping.

See the mdBook chapter CLI entrypoints (id_effect_cli) under Part II → Services, the examples/cli-minimal template, and crate docs on docs.rs.