---
phase: 11
slug: stealth-fingerprinting
status: draft
nyquist_compliant: false
wave_0_complete: false
created: 2026-03-18
---

# Phase 11 — Validation Strategy

> Per-phase validation contract for feedback sampling during execution.

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | pytest |
| **Config file** | pytest.ini (pythonpath=., testpaths=tests) |
| **Quick run command** | `pytest tests/test_crawler/ -x -v` |
| **Full suite command** | `pytest tests/ -v` |
| **Estimated runtime** | ~30 seconds |

---

## Sampling Rate

- **After every task commit:** Run `pytest tests/test_crawler/ -x`
- **After every plan wave:** Run `pytest tests/ -v`
- **Before `/gsd:verify-work`:** Full suite must be green
- **Max feedback latency:** 30 seconds

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
|---------|------|------|-------------|-----------|-------------------|-------------|--------|
| 11-01-01 | 01 | 1 | STEALTH-01 | unit | `pytest tests/test_crawler/test_stealth.py::test_navigator_webdriver_hidden -x` | ❌ W0 | ⬜ pending |
| 11-01-02 | 01 | 1 | STEALTH-02 | unit | `pytest tests/test_crawler/test_stealth.py::test_playwright_properties_removed -x` | ❌ W0 | ⬜ pending |
| 11-01-03 | 01 | 1 | STEALTH-03 | unit | `pytest tests/test_crawler/test_stealth.py::test_chrome_properties_mocked -x` | ❌ W0 | ⬜ pending |
| 11-01-04 | 01 | 1 | STEALTH-04 | unit | `pytest tests/test_crawler/test_stealth.py::test_user_agent_modified -x` | ❌ W0 | ⬜ pending |
| 11-02-01 | 02 | 1 | VERIFY-01 | integration | `pytest tests/test_crawler/test_zhihu_crawler_stealth.py::test_crawl_answer_with_stealth -x` | ❌ W0 | ⬜ pending |
| 11-02-02 | 02 | 1 | VERIFY-02 | regression | `pytest tests/test_crawler/ -v` | ✅ Existing | ⬜ pending |

*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*

---

## Wave 0 Requirements

- [ ] `tests/test_crawler/test_stealth.py` — stubs for STEALTH-01, STEALTH-02, STEALTH-03, STEALTH-04
- [ ] `tests/test_crawler/test_zhihu_crawler_stealth.py` — integration test for VERIFY-01
- [ ] `tests/test_crawler/conftest.py` — add `stealth_config` fixture

---

## Manual-Only Verifications

| Behavior | Requirement | Why Manual | Test Instructions |
|----------|-------------|------------|-------------------|
| 知乎 40362 错误消失 | VERIFY-01 | 需要真实网络环境 | 1. 运行 `python -m kb_workflow.crawler.zhihu_crawler` 访问问答页面 2. 确认无 40362 错误 |

---

## Validation Sign-Off

- [ ] All tasks have `<automated>` verify or Wave 0 dependencies
- [ ] Sampling continuity: no 3 consecutive tasks without automated verify
- [ ] Wave 0 covers all MISSING references
- [ ] No watch-mode flags
- [ ] Feedback latency < 30s
- [ ] `nyquist_compliant: true` set in frontmatter

**Approval:** pending