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eval-harness

Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

Skill by Luohaothu

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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

Use cases: agent-building

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What's inside

Skill name
eval-harness
Description
Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles
License
MIT
Instructions
223 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Eval Harness 技能

Claude Code 工作階段的正式評估框架,實作 eval 驅動開發(EDD)原則。

## 理念

Eval 驅動開發將 evals 視為「AI 開發的單元測試」:
- 在實作前定義預期行為
- 開發期間持續執行 evals
- 每次變更追蹤回歸
- 使用 pass@k 指標進行可靠性測量

## Eval 類型

### 能力 Evals
測試 Claude 是否能做到以前做不到的事:
```markdown
[CAPABILITY EVAL: feature-name]
任務:Claude 應完成什麼的描述
成功標準:
  - [ ] 標準 1
  - [ ] 標準 2
  - [ ] 標準 3
預期輸出:預期結果描述
```

### 回歸 Evals
確保變更不會破壞現有功能:
```markdown
[REGRESSION EVAL: feature-name]
基準:SHA 或檢查點名稱
測試:
  - existing-test-1: PASS/FAIL
  - existing-test-2: PASS/FAIL
  - existing-test-3: PASS/FAIL
結果:X/Y 通過(先前為 Y/Y)
```

## 評分器類型

### 1. 基於程式碼的評分器
使用程式碼的確定性檢查:
```bash
# 檢查檔案是否包含預期模式
grep -q "export function handleAuth" src/auth.ts && echo "PASS" || echo "FAIL"

# 檢查測試是否通過
npm test -- --testPathPattern="auth" && echo "PASS" || echo "FAIL"

# 檢查建置是否成功
npm run build && echo "PASS" || echo "FAIL"
```

### 2. 基於模型的評分器
使用 Claude 評估開放式輸出:
```markdown
[MODEL GRADER PROMPT]
評估以下程式碼變更:
1. 它是否解決了陳述的問題?
2. 結構是否良好?
3. 邊界案例是否被處理?
4. 錯誤處理是否適當?

分數:1-5(1=差,5=優秀)
理由:[解釋]
```

### 3. 人工評分器
標記為手動審查:
```markdown
[HUMAN REVIEW REQUIRED]
變更:變更內容的描述
理由:為何需要人工審查
風險等級:LOW/MEDIUM/HIGH
```

## 指標

### pass@k
「k 次嘗試中至少一次成功」
- pass@1:第一次嘗試成功率
- pass@3:3 次嘗試內成功
- 典型目標:pass@3 > 90%

### pass^k
「所有 k 次試驗都成功」
- 更高的可靠性標準
- pass^3:連續 3 次成功
- 用於關鍵路徑

## Eval 工作流程

### 1. 定義(編碼前)
```markdown
## EVAL 定義:feature-xyz

### 能力 Evals
1. 可以建立新使用者帳戶
2. 可以驗證電子郵件格式
3. 可以安全地雜湊密碼

### 回歸 Evals
1. 現有登入仍可運作
2. 工作階段管理未變更
3. 登出流程完整

### 成功指標
- 能力 evals 的 pass@3 > 90%
- 回歸 evals 的 pass^3 = 100%
```

### 2. 實作
撰寫程式碼以通過定義的 evals。

### 3. 評估
```bash
# 執行能力 evals
[執行每個能力 eval,記錄 PASS/FAIL]

From Luohaothu/everything-codex, MIT.

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Last commit (this folder)
Jan 29, 2026 (9 months ago)

From GitHub (fetched Oct 24, 2026).

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License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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eval-harness skill. Agent Mart. https://agentmart.dev/skills/luohaothu-eval-harness-281251 (last updated 2026-10-24)