On-demand builder that converts a SINGLE test failure record (JUnit XML, Allure JSON, pytest --tb=short, Playwright HTML, Cypress mocha-junit) into a structured, tracker-agnostic bug SPEC: extracts test name, assertion, stack trace, environment, and artefacts, and proposes severity, defect type (IEEE 1044), and a root-cause hypothesis (ISTQB CTAL-TA), then hands the JSON spec to a jira/linear/github-issues-bug-workflow runner to file. Use when you already hold a failure artefact and want one classified, ready-to-file report. Distinct from the event-driven CI orchestrator that triggers automatically on a pipeline failure and files in bulk, and from screen-recording-driven bug reporting; this is the on-demand, single-record spec builder.