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CLI

The crate ships an arcp binary for local runtime hosting and version checks.

Version

cargo run -- version

Prints the crate implementation version, the ARCP wire version, and the Rust implementation kind.

Serve

cargo run -- serve --bind 127.0.0.1:7777

By default, serve listens over WebSocket and advertises anonymous auth. Add a bearer token to require authentication:

cargo run -- serve \
  --bind 127.0.0.1:7777 \
  --bearer secret-token \
  --principal alice@example.com

Current serve support is intentionally small: one WebSocket listener, built-in anonymous or static bearer auth, and default runtime capabilities for streaming and artifacts. Rich host integrations live in application code and examples.

Tail

tail is present as a placeholder for future event-log inspection:

cargo run -- tail --session ses_...

The current implementation reports that subscription/event-log tailing is not yet wired into the CLI.

Logging

Use -v, -vv, or -vvv for progressively more verbose tracing output. The RUST_LOG environment variable overrides the default filter.