Represents one structured Rack audit failure in API and JSON output.
Reports Rack audit pass/fail state and serializes to the a0 JSON contract.
Emits Rack runtime progress JSONL events for long-running tests.
Collects metrics, timings, comparisons, attachments, SVGs, tags, and status.
Audits Rack suite manifests against the filesystem without running tests.
Returns the thread-local output collector for the current test.
Sets the thread-local output collector for the current test.
Clears the thread-local output collector.