Error reporting
When something goes wrong, the CLI distinguishes a condition it expected from a genuine bug, and treats them differently.
Expected conditions
Things like "you're not logged in", "this isn't a driver project", "no controller selected", or "the Anvil Agent is unreachable" are expected. The CLI shows a short, friendly card explaining what happened and how to fix it, and never reports them anywhere.
Unexpected errors
If the CLI hits something it didn't anticipate, it shows a crash card and offers to send an error report so we can fix it. Reporting is opt-in, per error: you're asked each time, and nothing is sent unless you agree.
A report contains the command you ran, which flags were set (their names only, not their values), and the error itself, never your source code or file contents.
Turning it off
Error reporting is off automatically in CI and non-interactive shells. To disable it everywhere, set any of:
ANVIL_NO_ERROR_REPORTING=1DO_NOT_TRACK=1ANVIL_NO_METRICS=1
See also Telemetry for anonymous usage metrics, which are separate and likewise opt-in.