# Step 2: deep-research

## Read First
- /AGENTS.md
- /docs/PRD.md
- /docs/ARCHITECTURE.md
- /docs/ADR.md
- /docs/UI_GUIDE.md
- /docs/RESEARCH_LOG.md
- /phases/0-report-generation/index.json

## Task
Deepen the research around the most important keywords, stakeholders, time periods, regions, and required questions from `docs/PRD.md`.

Use web search to fill evidence gaps, find current data, and look for conflicting viewpoints. Update:

- `docs/RESEARCH_LOG.md` source list with additional source entries.
- `docs/RESEARCH_LOG.md` `상충 근거` table when sources disagree.
- `docs/RESEARCH_LOG.md` `검증 필요` for claims that still lack enough support.
- `docs/RESEARCH_LOG.md` `폐기한 주장` for claims excluded because the evidence is weak, outdated, or outside scope.

## Acceptance Criteria
```bash
python scripts/validate_workspace.py
```

## Verification
1. Run the acceptance command.
2. Confirm the required questions in `docs/PRD.md` have research coverage or explicit gaps.
3. Confirm conflicts and uncertainty are visible in `docs/RESEARCH_LOG.md`.
4. Update this step in `phases/0-report-generation/index.json`.

## Do Not
- Do not resolve conflicting evidence by ignoring one side.
- Do not overfit research to a predetermined conclusion.
- Do not write the final report body before the source review and outline step.