## 4.2.3 Requirement Clarification Protocol (important)

> **User requirements may be stated casually and unconsciously. The AI must transform vague descriptions into structured requirements.**

**Trigger Conditions**: The user's requirement has any of the following issues:
- Description is vague or incomplete
- Missing specific acceptance criteria
- Open to multiple interpretations
- Involves S/A-level decisions

**Clarification Flow**:
```
1. [AI] Identify user intent, extract key information
2. [AI] Transform into structured requirement description
3. [AI] List assumptions and items to confirm
4. [Human] Confirm / correct / supplement
5. [AI] Finalize the requirement document
```

**Structured Requirement Template**:

```markdown
## Requirement: {title}

**Original Description**: 
> {user's original words}

**Requirement Analysis**:
- Goal: {what to achieve}
- Scenario: {under what circumstances}
- User: {who will use it}

**Functional Requirements**:
1. {specific feature 1}
2. {specific feature 2}

**Acceptance Criteria**:
- [ ] {verifiable criterion 1}
- [ ] {verifiable criterion 2}

**Items to Confirm**:
- [ ] {assumption needing user confirmation 1}
- [ ] {assumption needing user confirmation 2}

**Decision Level**: {S/A/B/C}
**Estimated Complexity**: {high/medium/low}
```

**Quick Clarification Questions**:
- "What outcome are you hoping for?"
- "Do you have any reference examples?"
- "Who will use this feature? In what scenario?"
- "How do we verify this feature is complete?"
- "Are there any time or resource constraints?"

**Example**:

User says: "Add an export feature"

AI after clarification:
```markdown
## Requirement: Data Export Feature

**Original Description**: 
> Add an export feature

**Requirement Analysis**:
- Goal: Export system data to files for backup or sharing
- Scenario: When users need to view data offline or migrate data
- User: All users

**Functional Requirements**:
1. Support export to JSON format
2. Support export to CSV format (if tabular data exists)
3. Exported files named with timestamps

**Acceptance Criteria**:
- [ ] File is generated after clicking the export button
- [ ] File can be opened normally by other tools
- [ ] Exported content is complete with no data loss

**Items to Confirm**:
- [ ] Which data needs to be exported? All or partial?
- [ ] Is export format selection needed?
- [ ] Are there file size limits?

**Decision Level**: B
**Estimated Complexity**: Medium
```

