Returns the generated fix diff (as file paths and line counts, not full content) and before/after test-run output for one triage run, identified by the triage run id from get_triage_runs (NOT a build id and NOT an issue number). stdout/stderr are tail-truncated because test failure summaries appear at the end of output, not the install noise at the start. Full file contents are available separately via the get_build_files tool using the run's buildId. Also includes a per-LLM-call trace (stage/model/status/latency) from Analytics Engine when available, covering attempts that failed before ever reaching the before/after test comparison above.