# Brief: expand-diagnosis-eval-fixtures

## Background

The diagnosis eval harness is implemented and archived, but the fixed baseline is incomplete because three of the five diagnosis cases still reference missing fixtures.

## Goals

1. Add representative trace fixtures for all remaining fixed diagnosis cases.
2. Save a reproducible baseline report in JSON and Markdown.
3. Document how to regenerate and interpret the baseline.
4. Keep evaluation offline and deterministic.

## Scope

- Redis timeout fixture
- Slow response fixture
- JVM memory risk fixture
- Baseline reports under `mvp/eval/reports`
- Focused tests for full fixture coverage and report generation

## Non-Goals

- No new diagnosis cases
- No production Agent runtime changes
- No LLM-as-judge
- No live infrastructure requirement

## Related OpenSpec

`openspec/changes/expand-diagnosis-eval-fixtures/`