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SKILL.md
npx skills add github/awesome-copilot --skill agentic-eval
Patterns and techniques for evaluating and improving AI agent outputs. Use this skill when: - Implementing self-critique and reflection loops - Building evaluator-optimizer pipelines for quality-critical generation - Creating test-driven code refinement workflows - Designing rubric-based or LLM-as-judge evaluation systems - Adding iterative improvement to agent outputs (code, reports, analysis) - Measuring and improving agent response quality
npx skills add github/awesome-copilot --skill agentic-eval
Patterns for self-improvement through iterative evaluation and refinement.
Evaluation patterns enable agents to assess and improve their own outputs, moving beyond single-shot generation to iterative refinement loops.
Agent evaluates and improves its own output through self-critique.
Key insight: Use structured JSON output for reliable parsing of critique results.
Separate generation and evaluation into distinct components for clearer responsibilities.
Test-driven refinement loop for code generation.
Evaluate whether output achieves the expected result.
Use LLM to compare and rank outputs.
Score outputs against weighted dimensions.
| Practice | Rationale |
|---|---|
| Clear criteria | Define specific, measurable evaluation criteria upfront |
| Iteration limits | Set max iterations (3-5) to prevent infinite loops |
| Convergence check | Stop if output score isn't improving between iterations |
| Log history | Keep full trajectory for debugging and analysis |
| Structured output | Use JSON for reliable parsing of evaluation results |
class EvaluatorOptimizer:
def __init__(self, score_threshold: float = 0.8):
self.score_threshold = score_threshold
def generate(self, task: str) -> str:
return llm(f"Complete: {task}")
def evaluate(self, output: str, task: str) -> dict:
return json.loads(llm(f"""
Evaluate output for task: {task}
Output: {output}
Return JSON: {{"overall_score": 0-1, "dimensions": {{"accuracy": ..., "clarity": ...}}}}
"""))
def optimize(self, output: str, feedback: dict) -> str:
return llm(f"Improve based on feedback: {feedback}\nOutput: {output}")
def run(self, task: str, max_iterations: int = 3) -> str:
output = self.generate(task)
for _ in range(max_iterations):
evaluation = self.evaluate(output, task)
if evaluation["overall_score"] >= self.score_threshold:
break
output = self.optimize(output, evaluation)
return outputclass CodeReflector:
def reflect_and_fix(self, spec: str, max_iterations: int = 3) -> str:
code = llm(f"Write Python code for: {spec}")
tests = llm(f"Generate pytest tests for: {spec}\nCode: {code}")
for _ in range(max_iterations):
result = run_tests(code, tests)
if result["success"]:
return code
code = llm(f"Fix error: {result['error']}\nCode: {code}")
return codedef evaluate_outcome(task: str, output: str, expected: str) -> str:
return llm(f"Does output achieve expected outcome? Task: {task}, Expected: {expected}, Output: {output}")def llm_judge(output_a: str, output_b: str, criteria: str) -> str:
return llm(f"Compare outputs A and B for {criteria}. Which is better and why?")RUBRIC = {
"accuracy": {"weight": 0.4},
"clarity": {"weight": 0.3},
"completeness": {"weight": 0.3}
}
def evaluate_with_rubric(output: str, rubric: dict) -> float:
scores = json.loads(llm(f"Rate 1-5 for each dimension: {list(rubric.keys())}\nOutput: {output}"))
return sum(scores[d] * rubric[d]["weight"] for d in rubric) / 5## Evaluation Implementation Checklist
### Setup
- [ ] Define evaluation criteria/rubric
- [ ] Set score threshold for "good enough"
- [ ] Configure max iterations (default: 3)
### Implementation
- [ ] Implement generate() function
- [ ] Implement evaluate() function with structured output
- [ ] Implement optimize() function
- [ ] Wire up the refinement loop
### Safety
- [ ] Add convergence detection
- [ ] Log all iterations for debugging
- [ ] Handle evaluation parse failures gracefully