---
phase: 10
slug: proxy-pool
status: draft
nyquist_compliant: false
wave_0_complete: false
created: 2026-03-18
---

# Phase 10 — Validation Strategy

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

---

## Test Infrastructure

| Property | Value |
|----------|-------|
| **Framework** | pytest 8.3+ |
| **Config file** | pytest.ini (pythonpath = ., testpaths = tests) |
| **Quick run command** | `pytest tests/test_crawler/test_proxy_pool.py -x` |
| **Full suite command** | `pytest tests/test_crawler/ -v` |
| **Estimated runtime** | ~5 seconds |

---

## Sampling Rate

- **After every task commit:** Run `pytest tests/test_crawler/test_proxy_pool.py -x`
- **After every plan wave:** Run `pytest tests/test_crawler/ -v`
- **Before `/gsd:verify-work`:** Full suite must be green
- **Max feedback latency:** 5 seconds

---

## Per-Task Verification Map

| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
|---------|------|------|-------------|-----------|-------------------|-------------|--------|
| 10-01-01 | 01 | 1 | PROXY-01 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_load_from_yaml -x` | ❌ W0 | ⬜ pending |
| 10-01-02 | 01 | 1 | PROXY-01 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_load_from_env -x` | ❌ W0 | ⬜ pending |
| 10-01-03 | 01 | 1 | PROXY-02 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_round_robin -x` | ❌ W0 | ⬜ pending |
| 10-02-01 | 02 | 1 | PROXY-03 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_fail_threshold -x` | ❌ W0 | ⬜ pending |
| 10-02-02 | 02 | 1 | PROXY-03 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_cooldown_recovery -x` | ❌ W0 | ⬜ pending |
| 10-02-03 | 02 | 1 | PROXY-04 | unit | `pytest tests/test_crawler/test_proxy_pool.py::test_all_unavailable_fallback -x` | ❌ W0 | ⬜ pending |
| 10-02-04 | 02 | 1 | PROXY-04 | integration | `pytest tests/test_crawler/test_proxy_pool.py::test_proxy_switch -x` | ❌ W0 | ⬜ pending |

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

---

## Wave 0 Requirements

- [ ] `tests/test_crawler/test_proxy_pool.py` — stubs for PROXY-01~04
- [ ] `tests/test_crawler/conftest.py` — add proxy_pool fixture (extend existing)
- [ ] No framework install needed — pytest already configured

---

## Manual-Only Verifications

| Behavior | Requirement | Why Manual | Test Instructions |
|----------|-------------|------------|-------------------|
| Real proxy connection | PROXY-01~04 | Requires external proxy service | Configure ~/.kb_proxies.yaml with real proxies, run crawler |

*All phase behaviors have automated verification for core logic. Manual verification only for integration with external proxy services.*

---

## 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 < 5s
- [ ] `nyquist_compliant: true` set in frontmatter

**Approval:** pending