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FESADev/phases/euler-beam-3d/step3.md
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2026-06-12 17:26:01 +09:00

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# Step 3: numerical-review
## Read These Files First
Read the following files before editing:
- `/AGENTS.md`
- `/docs/PRD.md`
- `/docs/ARCHITECTURE.md`
- `/docs/ADR.md`
- `/docs/requirements/euler-beam-3d.md`
- `/docs/research/euler-beam-3d-research.md`
- `/docs/formulations/euler-beam-3d-formulation.md`
- `/docs/numerical-reviews/README.md`
## Task
Create `/docs/numerical-reviews/euler-beam-3d-review.md`.
Review the formulation for implementation readiness. The review must include:
- dimension and units check for each stiffness coefficient
- symmetry and rigid body mode expectations
- local axis construction risks
- positive semi-definite local stiffness expectation before constraints
- test obligations before production code
- known numerical limits for slender beams and very small section constants
- pass/fail verdict for kernel implementation planning
If the formulation is not ready, mark the document status as `needs-upstream-decision` and update this phase step as blocked with a concrete reason.
Do not create C++ files in this step.
## Tests To Write First
- No C++ test is required in this documentation-only step.
## Acceptance Criteria
```powershell
python -m unittest discover -s scripts -p "test_*.py"
python scripts/validate_workspace.py
```
## Verification Notes
1. Confirm the review does not change requirements or formulation.
2. Confirm implementation-owned risks are turned into concrete tests.
3. Update `phases/euler-beam-3d/index.json` step 3:
- success: `"status": "completed"`, `"summary": "3D Euler beam numerical review added"`
- failure after retries: `"status": "error"`, `"error_message": "<specific error>"`
- blocked: `"status": "blocked"`, `"blocked_reason": "<specific reason>"`
## Forbidden
- Do not modify requirements, formulation, source, tests, or reference artifacts.