v1.7.2

1.7.2 (2026-03-20)

Breaking change

• ResilientLLM.chat() now always returns a consistent envelope object: { content, toolCalls?, metadata } (metadata is no longer gated by returnOperationMetadata).

This is how you use the library after v1.7.2

import { ResilientLLM } from 'resilient-llm';

const llm = new ResilientLLM({
  aiService: 'openai',
  model: 'gpt-4o-mini',
});

const conversationHistory = [
  { role: 'system', content: 'You are a helpful assistant.' },
  { role: 'assistant', content: 'Hi, I am here to help.' },
  { role: 'user', content: 'What is the capital of France?' }
];

try {
    const { content, toolCalls, metadata } = await llm.chat(conversationHistory);
    console.log('LLM response:', content);
} catch (err) {
    console.error('Error:', err);
}

Bug Fixes

• add support for structured output support (#85) (c79b9ee)

Structured output example

const conversationHistory = [{ role: 'user', content: 'Add 2 and 3 and respond ONLY with JSON having sum and explanationSteps' }];
const { content: result } = await llm.chat(conversationHistory, {
  responseFormat: {
    type: 'json_schema',
    json_schema: {
        name: 'math_answer',
        schema: {
             type: 'object',
             properties: {
                 sum: { type: 'number' },
                  explanationSteps: {
                      type: 'array',
                      items: { type: 'string' }
                  }
             },
             required: ['sum', 'explanationSteps'],
             // Anthropic Messages structured output requires explicit false here for object roots.
             additionalProperties: false
        }
   }
});

console.log(JSON.stringify(result))
// {
//  content: {
//    sum: 5,
//    explanationSteps: [
//      "Add 2 and 3.",
//      "The result is 5."
//    ]
//  },
//  metadata: { requestId: "unique-id", finishReason: "stop", .... }
// }