Check whether the active backend's transport is ready — hal_available • hal

Dispatches by backend:

vscode: bridge port file exists and /version responds.
copilot: Copilot CLI binary found and --version succeeds.
claude: Claude CLI binary found and --version succeeds.

Usage

hal_available(backend = NULL)

Arguments

backend: Optional backend id ("vscode", "copilot", "claude"). If NULL, uses the resolved default for this session.

Value

TRUE if the backend's transport is reachable, FALSE otherwise.

Details

Honors the hal.backend option / explicit argument so callers can probe a specific backend without switching the session default.

See also

HalChat, hal_models(), hal_bridge_status() for richer vscode-backend diagnostics.

Examples

hal_available()
#> [1] TRUE
if (FALSE) { # \dontrun{
hal_available(backend = "vscode")
hal_available(backend = "claude")
} # }