Promptier: SDK de engenharia de prompts para Node.js

If you're like me and are creating ai agents in nodejs then you might have also felt the lack of proper tooling when it comes to creating prompts in code. I was debugging an agent that kept ignoring instructions. Took me 2 hours to find the problem: two fragments written months apart that contradicted each other. One said 'always explain your reasoning', the other said 'be brief, no explanations needed.' The prompt was 1800 tokens across 6 files - impossible to spot by eye. Figured if we lint code, we should lint prompts. For that reason i've created Promptier - https://github.com/DeanShandler123/promptier - Core SDK: Used to compose prompts by chaining sections for example: const agent = prompt('customer-support') .model('claude-sonnet-4-20250514') .identity('You are a customer support agent for Acme Inc.') .capabilities(['Access customer order history', 'Process refunds up to $100']) .constraints(['Never share conflicting instructions'])