Q37 of 60 — CCA Practice Exam

Claude Code for Continuous Integration

Your team is building a Python-based CI pipeline that uses the Claude Code agent SDK to run automated code reviews on every pull request. The pipeline needs to execute a workspace initialization script at the start of each session — setting environment variables, validating credentials, and logging the run start time. A developer implements this as a SessionStart SDK callback in Python, mirroring how it works in the TypeScript version. The pipeline deploys and fails silently: the initialization logic never runs. What is the most effective architectural fix?

A. Register the initialization logic as a PreToolUse SDK callback with no matcher, so it fires before any tool call in the session and acts as a session-start proxy.

B. Define the initialization logic as a SessionStart shell command hook in .claude/settings.json and include setting_sources=["project"] in the ClaudeAgentOptions so the SDK loads it.

C. Wrap the SDK client initialization in a try/except block that logs the failure and retries session creation, ensuring the callback eventually runs.

D. Migrate the CI pipeline from the Python SDK to the TypeScript SDK, which supports SessionStart as an SDK callback hook natively.