Q23 of 60 — CCA Practice Exam

Code Generation with Claude Code

Your Claude Code integration generates function implementations by issuing tool-use requests. Overnight batch jobs show that roughly 12% of code generation tasks are failing silently — the pipeline records a successful API call but produces no usable output. Examining the raw API responses, you find these calls have stop_reason: "max_tokens" and the content array contains a partially constructed tool_use block with no closing structure. What is the most likely root cause of this failure pattern?

A. The tool schema is missing required fields, causing Claude to abandon the tool_use block before completion.

B. The max_tokens limit is being reached mid-response, truncating the tool_use block before Claude can close it, producing an unusable partial output that the pipeline treats as a success.

C. The pipeline is misreading a valid end_turn response as a success when the actual content is empty, masking a prompt construction error.

D. Claude is returning a text block instead of a tool_use block because the system prompt and tool description are ambiguous, and the pipeline does not validate the content type before proceeding.