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**Package**: @anthropic-ai/[email protected]
Passed 13 of 22 test cases with the skill, and 0 of 22 without it.
13 fixed0 passed either way9 still failing0 broke
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Package: @anthropic-ai/[email protected] Breaking Changes: v0.1.45 - Structured outputs (Nov 2025), v0.1.0 - No default system prompt, settingSources required
Major Features:
outputFormat parameter - Define output structure with JSON schema or Zodmessage.structured_outputstructured-outputs-2025-11-13Example:
import { query } from "@anthropic-ai/claude-agent-sdk";
import { z } from "zod";
import { zodToJsonSchema } from "zod-to-json-schema";
const schema = z.object({
summary: z.string(),
sentiment: z.enum(['positive', 'neutral', 'negative']),
confidence: z.number().min(0).max(1)
});
const response = query({
prompt: "Analyze this code review feedback",
options: {
model: "claude-sonnet-4-5",
outputFormat: {
type: "json_schema",
json_schema: {
name: "AnalysisResult",
strict: true,
schema: zodToJsonSchema(schema)
test cases passed, vs 0 / 22 without
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