Verified65% confidenceFactExact time
The Claude Code SDK can return structured output in JSON format via the --output-format json parameter.
3
Sources
65%
Confidence
Long-term
Relevance
8/3/2025
First Seen
Sources
Related Entities
Related Claims
VerifiedStructured output imposes constraints on token generation during the decoding phase through JSON Schema or function-calling mechanisms, which is fundamentally different from requesting JSON-format output in the prompt.75% similarUnverifiedEach line of Claude Code's JSONL is a JSON record, distinguished by type via the type field, including user, assistant, custom-title, ai-title, system, attachment, queue-operation, pr-link, result, and others.74% similarUnverifiedThe interface text of Claude Code and Codex is hard-coded into the program's resource files (typically language packages in JSON or JS format) rather than being dynamically read from the system language.73% similarUnverifiedClaude Code settings keys are typically written into JSON files such as .claude/settings.json (project level) or ~/.claude/settings.json (user level), and can also be overridden via environment variables or managed policies.72% similar
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