# Reference Verification Report 문서 작성 가이드

이 디렉터리는 Reference Verification Agent가 작성하거나 제안하는 기능별 reference comparison report를 보관하는 위치다.

Reference Verification Agent는 Build/Test Executor Agent 통과 후 generated solver `results.h5`와 Abaqus reference CSV files를 tolerance 기준으로 비교한다. Reference CSV는 동일한 Abaqus `.inp` 모델을 Abaqus로 해석해 추출한 변위, 반력, 내력, 응력 결과이며, FESA HDF5 dataset에서 파생된 파일이 아니다. 이 agent는 comparison과 report만 수행하며, source code, tests, CMake files, requirements, formulations, I/O contracts, reference artifacts, tolerance policies를 수정하지 않는다.

기본 문서명은 `docs/reference-verifications/<feature-id>-reference-verification.md` 형식을 사용한다.

## Reference Verification Agent 역할

수행한다:
- `reference/<model-id>/` artifact bundle과 generated solver `results.h5`를 확인한다.
- `metadata.json`, `model.inp`, required Abaqus reference CSV files, reference CSV schema version, FESA HDF5 schema version, units, coordinate system, step/frame identity, node/element ID matching rule, output location, component naming, tolerance policy를 확인한다.
- FESA HDF5 dataset을 normalized row record로 읽고 Abaqus reference CSV row와 직접 비교한다.
- comparison command가 FESA `results.h5`에서 deterministic CSV view를 materialize할 수 있지만, 이 파일은 debugging/review용 derived artifact일 뿐 reference artifact가 아니다.
- upstream 문서가 요구할 때만 `<model-id>_strains.csv`, `<model-id>_energy_or_residual.csv`, 또는 `<model-id>_<quantity>.csv`를 추가 비교한다.
- max absolute error, max relative error, RMS error, norm error, worst id/component, missing rows, extra rows, pass/fail을 보고한다.
- 실패를 missing-reference-artifact, missing-solver-output, schema-mismatch, id-mismatch, unit-or-coordinate-mismatch, tolerance-failure, nonfinite-result, upstream-contract, environment로 분류한다.

수행하지 않는다:
- source code를 수정하지 않는다.
- tests를 수정하지 않는다.
- CMake files를 수정하지 않는다.
- requirements, formulations, I/O contracts, reference model contracts를 수정하지 않는다.
- reference artifacts 또는 tolerance policies를 수정하지 않는다.
- Abaqus, Nastran 또는 reference solver를 실행하지 않는다.
- Abaqus reference CSV 파일을 생성하거나 수정하지 않는다.
- solver output을 tolerance에 맞추기 위해 보정하지 않는다.
- physics validation success 또는 release readiness를 승인하지 않는다.

## 실행 순서

Reference Verification Agent는 항상 다음 순서를 따른다.

```text
ARTIFACT CHECK -> COMPARE -> CLASSIFY -> REPORT
```

`ARTIFACT CHECK`에서 다음 항목이 없으면 비교를 시작하지 않는다.

- `metadata.json`
- `model.inp`
- generated solver `results.h5`
- `reference/<model-id>/<model-id>_displacements.csv`
- `reference/<model-id>/<model-id>_reactions.csv`
- `reference/<model-id>/<model-id>_internalforces.csv`
- `reference/<model-id>/<model-id>_stresses.csv`
- reference CSV schema version
- FESA HDF5 schema version
- units
- coordinate system
- step/frame identity
- node/element ID matching rule
- output location
- component naming
- tolerance policy

## 비교 대상

| quantity | fesa_hdf5_dataset | reference_csv |
| --- | --- | --- |
| displacement | /steps/<step>/frames/<frame>/field_outputs/U | reference/<model-id>/<model-id>_displacements.csv |
| reaction | /steps/<step>/frames/<frame>/field_outputs/RF | reference/<model-id>/<model-id>_reactions.csv |
| internal force | /steps/<step>/frames/<frame>/field_outputs/element_forces | reference/<model-id>/<model-id>_internalforces.csv |
| stress | /steps/<step>/frames/<frame>/field_outputs/S | reference/<model-id>/<model-id>_stresses.csv |

선택 Abaqus reference CSV:
- `reference/<model-id>/<model-id>_strains.csv`: strain이 acceptance criteria에 포함된 경우
- `reference/<model-id>/<model-id>_energy_or_residual.csv`: energy, residual, convergence quantity가 acceptance criteria에 포함된 경우
- `reference/<model-id>/<model-id>_<quantity>.csv`: feature-specific quantity가 acceptance criteria에 포함된 경우

## Failure Classification

- `missing-reference-artifact`: required Abaqus reference CSV file 또는 provenance가 없다.
- `missing-solver-output`: generated solver `results.h5` 또는 comparison command가 없다.
- `schema-mismatch`: FESA HDF5 또는 reference CSV row schema가 다르다.
- `id-mismatch`: node id, element id, step/frame, integration point, component matching이 실패했다.
- `unit-or-coordinate-mismatch`: units 또는 coordinate system이 비교 가능하지 않다.
- `tolerance-failure`: schema와 matching은 유효하지만 error가 tolerance를 초과했다.
- `nonfinite-result`: NaN 또는 infinite value가 발견됐다.
- `upstream-contract`: tolerance, schema, units, output location, ID matching policy가 누락 또는 충돌한다.
- `environment`: 로컬 실행 환경 문제로 비교가 불가능하다.

## 문서 템플릿

```markdown
# <feature title> Reference Verification Report

## Metadata
- feature_id: <feature-id>
- source_build_test_report: docs/build-test-reports/<feature-id>-build-test.md
- source_reference_models: docs/reference-models/<feature-id>-reference-models.md
- source_io_definition: docs/io-definitions/<feature-id>-io.md
- source_implementation_report: <path or N/A>
- status: pass-for-physics-evaluation | needs-correction | needs-reference-artifacts | needs-solver-results | needs-upstream-decision | blocked
- owner_agent: reference-verification-agent
- date: <YYYY-MM-DD>

## Artifact Inventory

| item | path | status | notes |
| --- | --- | --- | --- |
| reference_model_dir | reference/<model-id>/ | present | missing | <notes> |
| reference_input | reference/<model-id>/model.inp | present | missing | <input summary> |
| metadata | reference/<model-id>/metadata.json | present | missing | <provenance summary> |
| reference_displacements_csv | reference/<model-id>/<model-id>_displacements.csv | present | missing | <row/schema summary> |
| reference_reactions_csv | reference/<model-id>/<model-id>_reactions.csv | present | missing | <row/schema summary> |
| reference_internalforces_csv | reference/<model-id>/<model-id>_internalforces.csv | present | missing | <row/schema summary> |
| reference_stresses_csv | reference/<model-id>/<model-id>_stresses.csv | present | missing | <row/schema summary> |
| solver_hdf5 | <solver output directory>/results.h5 | present | missing | <schema summary> |
| solver_debug_csv_view | <solver output directory>/csv/ | present | missing | <optional, derived from results.h5 only> |

## Comparison Contract
- hdf5_schema_version: <version>
- reference_csv_schema_version: <version>
- id_matching: node_id | element_id | step/frame | integration_point | component
- units: <unit system>
- coordinate_system: <global/local convention>
- output_location: nodal | element | integration_point | centroid | recovery_location
- component_naming: <component naming policy>
- row_sort_order: <step, frame, id, location, component order>
- tolerance_source: <requirement/reference model/I/O document>
- tolerance_policy: absolute | relative | norm-based | combined
- zero_reference_policy: <policy or N/A>

## Quantity Results

| quantity | model_id | fesa_hdf5_dataset | reference_csv | compared_rows | missing_rows | extra_rows | max_abs_error | max_rel_error | rms_error | norm_error | worst_id | worst_component | result |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| displacement | <model-id> | /steps/<step>/frames/<frame>/field_outputs/U | reference/<model-id>/<model-id>_displacements.csv | <n> | <n> | <n> | <value> | <value> | <value> | <value or N/A> | <node id> | <component> | pass | fail |
| reaction | <model-id> | /steps/<step>/frames/<frame>/field_outputs/RF | reference/<model-id>/<model-id>_reactions.csv | <n> | <n> | <n> | <value> | <value> | <value> | <value or N/A> | <node id> | <component> | pass | fail |
| internal force | <model-id> | /steps/<step>/frames/<frame>/field_outputs/element_forces | reference/<model-id>/<model-id>_internalforces.csv | <n> | <n> | <n> | <value> | <value> | <value> | <value or N/A> | <element id> | <component> | pass | fail |
| stress | <model-id> | /steps/<step>/frames/<frame>/field_outputs/S | reference/<model-id>/<model-id>_stresses.csv | <n> | <n> | <n> | <value> | <value> | <value> | <value or N/A> | <element/ip id> | <component> | pass | fail |

## Failure Classification
- classification: missing-reference-artifact | missing-solver-output | schema-mismatch | id-mismatch | unit-or-coordinate-mismatch | tolerance-failure | nonfinite-result | upstream-contract | environment | N/A
- primary_failure: <short summary>
- evidence: <short relevant excerpt or computed metric>

## Handoff Recommendation

| target_agent | reason | required_input |
| --- | --- | --- |
| Correction Agent | <implementation-owned mismatch or nonfinite result> | <comparison metrics and failing quantity> |
| Reference Model Agent | <missing or invalid reference artifact/provenance> | <artifact inventory> |
| I/O Definition Agent | <FESA HDF5 schema, reference CSV schema, units, coordinate, output location mismatch> | <contract mismatch> |
| Physics Evaluation Agent | <reference comparisons passed> | <quantity results and report> |
| Coordinator Agent | <blocked or repeated ambiguity> | <classification and open issue> |

## No-Change Assertion
- source_files_modified: false
- test_files_modified: false
- cmake_files_modified: false
- reference_artifacts_modified: false
- tolerance_policies_modified: false
- notes: <observed no-change evidence or exception>

## Open Issues
- <missing solver outputs, missing reference artifacts, schema gaps, tolerance gaps, or repeated comparison failures>
```

## 상태 값

- `pass-for-physics-evaluation`: required reference comparisons가 모두 통과했고 Physics Evaluation Agent로 넘길 수 있다.
- `needs-correction`: implementation-owned solver result mismatch 또는 nonfinite result가 있다.
- `needs-reference-artifacts`: required Abaqus reference CSV 또는 provenance가 누락됐다.
- `needs-solver-results`: generated solver `results.h5` 또는 comparison command가 없다.
- `needs-upstream-decision`: schema, tolerance, units, coordinate system, output location, ID matching policy가 누락 또는 충돌한다.
- `blocked`: 사용자 또는 Coordinator Agent 결정 없이는 안전하게 진행할 수 없다.

## 품질 기준

- 모든 `must` requirement의 reference-comparison 항목은 model id, compared quantity, FESA HDF5 dataset, reference CSV, tolerance에 trace되어야 한다.
- reference artifact는 읽기 전용이다. `model.inp`, `metadata.json`, `reference/<model-id>/<model-id>_*.csv`를 수정하지 않는다.
- FESA `results.h5`가 authoritative solver output이고 Abaqus reference CSV files가 authoritative reference result다.
- solver debug CSV view는 행 정렬과 사람이 검토 가능한 비교 view일 뿐이며 tolerance에 맞추기 위해 후처리 보정하지 않는다.
- stress/strain은 element id, integration point 또는 recovery location, component naming이 일치할 때만 비교한다.
- nodal displacement/reaction은 node id, DOF/component, coordinate system, unit이 일치할 때만 비교한다.
- missing rows와 extra rows를 숨기지 않고 보고한다.
- NaN 또는 infinite value는 `nonfinite-result`로 분류한다.
- pass는 reference tolerance 통과만 의미한다.
- physics validation과 release readiness는 각각 Physics Evaluation Agent와 Release Agent가 판정한다.