AI 写代码变快了，交付为什么没跟上？

stages:
  - verify
  - test

verify_ai_traceability:
  stage: verify
  image: alpine:3.20
  rules:
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
  script:
    - |
      echo "MR labels: ${CI_MERGE_REQUEST_LABELS:-}"
      case ",$CI_MERGE_REQUEST_LABELS," in
        *,ai-assisted,*)
          echo "AI-assisted change detected. Checking traceability note..."
          test -f docs/ai-change-note.md || {
            echo "Missing docs/ai-change-note.md"
            echo "Create it and describe AI usage, human review, and validation steps."
            exit 1
          }
          grep -q "Human validation:" docs/ai-change-note.md || {
            echo "docs/ai-change-note.md must include: Human validation:"
            exit 1
          }
          ;;
        *)
          echo "No ai-assisted label found. Skipping AI traceability check."
          ;;
      esac

unit_tests:
  stage: test
  image: python:3.12-slim
  script:
    - python -m pip install -r requirements.txt
    - python -m pytest -q

# AI Change Note

AI usage:
- Example: generated initial implementation for input validation helper.

Human validation:
- Example: reviewed edge cases for empty input, malformed IDs, and permission checks.
- Example: added or updated unit tests covering changed behavior.

Risk notes:
- Example: no new runtime dependency introduced.
- Example: security-sensitive logic was manually reviewed.

import os
import statistics
from datetime import datetime, timezone

import requests

GITLAB_HOST = os.getenv("GITLAB_HOST", "https://gitlab.com")
PROJECT_ID = os.environ["PROJECT_ID"]
TOKEN = os.environ["GITLAB_TOKEN"]

url = f"{GITLAB_HOST}/api/v4/projects/{PROJECT_ID}/merge_requests"
params = {
    "state": "merged",
    "per_page": 50,
    "order_by": "updated_at",
    "sort": "desc",
}
headers = {"PRIVATE-TOKEN": TOKEN}

resp = requests.get(url, params=params, headers=headers, timeout=20)
resp.raise_for_status()

hours = []
for mr in resp.json():
    created = datetime.fromisoformat(mr["created_at"].replace("Z", "+00:00"))
    merged = datetime.fromisoformat(mr["merged_at"].replace("Z", "+00:00"))
    hours.append((merged - created).total_seconds() / 3600)

if not hours:
    print("No merged merge requests found.")
else:
    print(f"MR count: {len(hours)}")
    print(f"Median lead time: {statistics.median(hours):.1f} hours")
    print(f"Average lead time: {statistics.mean(hours):.1f} hours")

python -m venv .venv
. .venv/bin/activate
python -m pip install requests
export GITLAB_TOKEN="glpat_xxx"
export PROJECT_ID="123456"
export GITLAB_HOST="https://gitlab.com"
python measure_mr_lead_time.py