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Error Handling

SDK errors fall into four categories.

Transport Errors

The CLI subprocess could not start, disconnected, or returned invalid JSON.

Common causes:

AUTOHAND_CLI_PATH points to a missing binary.
The CLI is not authenticated.
The provider config is invalid.

Request Timeouts

Requests time out according to Config::timeout.

auto config = autohand::Config::from_environment();
config.timeout = std::chrono::milliseconds(120000);

JSON-RPC Errors

The CLI rejected a request. Examples:

calling a control method before start();
sending an expired permission request id;
setting an unsupported model.

Agent Events

Agent loop failures may arrive as error events in the stream. Handle them in your event callback and show enough context for users to recover.

Recovery Patterns

Stop and restart the SDK after transport failures.
Use interrupt() or Run::abort() for user cancellation.
Keep final summaries honest when checks fail.
Keep raw event JSON available for debugging advanced CLI behavior.