Tagged: Tool-Use
2 posts
Claude API Tool Use: input_schema Draft 2020-12 Restrictions
Which JSON Schema draft 2020-12 keywords Claude's input_schema enforces: the strict-mode restriction list, what plain tool use ignores, and fixes.
Claude API Structured Output: 3 Patterns for Guaranteed JSON
Clean JSON from Claude every time: tool use as schema contract, assistant prefill, stop sequences. When each pattern wins and what breaks them.