The build/edit test handlers wrapped run_draft in a bare, non-logging
`except Exception` that turned any launch-time failure into a blank failed
run (dify_run_id="", per_node=[], no error). Diagnose then had nothing to
act on and the repair loop ran blind — the prod symptom where a stale test
input (ValueError "<var> is required in input form") produced an
undiagnosable await_repair loop.
Now the launch error is logged, captured, and persisted so diagnose/routing
can act on it:
- Run.error field + dify_builder_runs.error column (migration a9cc8d552db4)
- handlers_build/edit: logger.exception + launch_error_text(exc) -> Run.error
- is_input_failure() also inspects Run.error (+ "in input form" signal), so a
stale-input launch failure routes to the testdata gate, not blind repair
- diagnose/_degraded_diagnosis surface the launch error when no node executed
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Render change sets directly in plan-style cards with affected node names,
IDs, and change details. Capture node metadata for proposed and applied
changes and persist it with conversation history.
Remove the view_changes action and expand/collapse state. Update generated
contracts, translations, and regression coverage.
Validation: 112 frontend tests and 742 backend unit tests passed.
Charles YaoandClaude Opus 4.8
twwu