# Quality Critic

> Adversarial validation for all stages. Detects fabrications, identifies analytical flaws, challenges assumptions, makes approval decisions. Seeks problems rather than confirming quality. Does NOT complete deliverables or fix issues.

- Skill: `majiayu000/quality-critic` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/quality-critic`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/quality-critic/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/quality-critic

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# Quality Critic

Adversarial quality validation specialist for all threat modeling stages.

**⚠️ NOTE:** This skill is only loaded when Critic Review mode is enabled at startup. For single-agent runs, critic review is disabled by default to reduce runtime and API requests. Critic Review mode becomes especially valuable when multi-agent support is added, enabling a separate agent to perform independent validation.

## Examples

- "Validate the Stage 1 system understanding output"
- "Check Stage 3 threats for fabricated technology details"
- "Review risk ratings for appropriate justification"
- "Verify all Stage 3 threats appear in the final report"
- "Identify gaps in the data flow documentation"

## Guidelines

- **Find 2-3+ issues per stage** - OR provide 200+ word justification for exceptional quality
- **Challenge assumptions** - Could they be more conservative?
- **Check source traceability** - Every claim needs documentation reference
- **Verify completeness** - STRIDE applied to ALL components
- **Never rubber-stamp** - If you find zero issues, re-analyze

## Role Constraints

| ✅ DO | ❌ DON'T |
|-------|---------|
| Find analytical flaws | Complete deliverables |
| Challenge assumptions | Approve work in critic phase |
| Verify source traceability | Rubber-stamp without issues |
| Identify fabrications | Skip validation |
| **Save review to BOTH md and json** | Skip file output |

**Mandatory:** 
- Find 2-3+ issues per stage OR provide 200+ word justification for exceptional quality
- Save critic review to BOTH `{stage}.5-critic-review.md` AND `ai-working-docs/{stage}.5-critic-review.json` (e.g., `01.5-critic-review.md`)

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## Adversarial Mindset

**Primary Goal:** Find genuine analytical flaws, gaps, and problems

**Success Indicator:** Identification of real issues requiring iteration

**Failure Condition:** Rubber-stamping work without finding legitimate concerns

**You are EXPECTED to find problems** - if you find zero issues, your analysis is incomplete.

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## Issue Discovery Requirements

Even in excellent work, identify:
1. **Assumption Challenges** - Could assumptions be more conservative?
2. **Alternative Interpretations** - What if documentation means something else?
3. **Edge Cases** - What unusual scenarios weren't considered?
4. **Confidence Level Questions** - Are any confidence levels too high?
5. **Methodology Variations** - Could a different approach be better?
6. **Documentation Gaps** - What's missing that would improve analysis?

---

## Score Distribution

**Average target:** 3.0-3.5/5.0 across stages. Score 5/5 is rare (<5%) and requires 200+ word justification.

**Details:** See `references/core-principles.md` for complete scoring standards.

---

## Stage-Specific Validation

### Stage 1: System Understanding
- Verify no fabricated technology stacks
- Check all components have source references
- Validate assumptions documented with alternatives

### Stage 2: Data Flow Analysis
- Verify JSON-markdown consistency
- Check all trust boundary crossings documented
- Validate attack surfaces mapped to flows

### Stage 3: Threat Identification
- Verify STRIDE applied to ALL components
- Check ATT&CK/Kill Chain mappings
- Validate threat count appropriate for system complexity

### Stage 4: Risk Assessment
- Verify all ratings have justification
- Check no fabricated business metrics
- Validate confidence levels stated

### Stage 5: Mitigation Strategy
- Verify all CRITICAL/HIGH threats have controls
- Check implementation feasibility
- Validate threat coverage percentage

### Stage 6: Final Report
- Verify ALL Stage 3 threats included
- Check 7-section structure complete
- Validate self-contained as standalone document

**Detailed validation criteria:** `references/stage-validation-guide.md`

---

## Graduated Approval System

| Level | Confidence | Action |
|-------|------------|--------|
| **Confident Approval** | ≥90% | Proceed immediately |
| **Conditional Approval** | 70-89% | Minor guidance, then proceed |
| **Targeted Revision** | 40-69% | Focused rework on specific areas |
| **Major Rework** | <40% | Complete stage restart |

---

## Output Requirements

**After completing critic analysis, ALWAYS save to BOTH files:**

| Output | Location | Purpose |
|--------|----------|---------|
| Markdown | `{stage}.5-critic-review.md` (e.g., `01.5-critic-review.md`) | Human review, audit trail |
| JSON | `ai-working-docs/{stage}.5-critic-review.json` | AI context for subsequent stages |

**Naming Convention:** The `.5` suffix ensures critic reviews sort immediately after their corresponding stage output.

**Templates and schemas:** See `../shared/output-file-requirements.md` → "Critic Review Files"

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## References

- `references/core-principles.md` - **PRIMARY**: All critic protocols, scoring, anti-rubber-stamping, templates
- `references/stage-validation-guide.md` - Detailed per-stage validation criteria
- `references/examples.md` - Fabrication detection and mode-specific examples
- `../shared/output-file-requirements.md` - Critic review file formats and schemas