The latest articles on DEV Community by Pedro Teixeira (@pgte). https://dev.to/pgte https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F2603038%2F6954f79f-3ac7-44e2-a4f3-179b9bfe133d.jpg https://dev.to/pgte en Pedro Teixeira Thu, 12 Feb 2026 09:54:03 +0000 https://dev.to/pgte/subscription-based-api-throttling-without-client-api-keys-310n https://dev.to/pgte/subscription-based-api-throttling-without-client-api-keys-310n <p>How to implement tiered API throttling in AWS API Gateway using subscriptions, without requiring clients to send or manage API keys. Learn how to map subscriptions to usage plans with a custom Lambda authorizer for seamless and secure rate limiting.</p> <p><a href="https://metaduck.com/subscription-based-api-throttling-without-client-api-keys/" rel="noopener noreferrer">Read more 👉</a></p> infrastructureascode aws saas Pedro Teixeira Mon, 09 Feb 2026 10:09:10 +0000 https://dev.to/pgte/how-we-give-ai-agents-long-term-memory-without-blowing-the-budget-3ib1 https://dev.to/pgte/how-we-give-ai-agents-long-term-memory-without-blowing-the-budget-3ib1 <p>Giving agents long-term memory is hard: context windows are limited, storing every raw message is expensive, and retrieval has to be both fast and relevant. We solved this with a time-stratified design: organize memory by temporal grain, summarize progressively, and pair it with a graph-based knowledge base for structured facts. </p> <p>Read more: <a href="https://metaduck.com/how-we-give-ai-agents-long-term-memory-without-blowing-the-budget/" rel="noopener noreferrer">https://metaduck.com/how-we-give-ai-agents-long-term-memory-without-blowing-the-budget/</a></p> ai Pedro Teixeira Mon, 16 Jun 2025 16:43:00 +0000 https://dev.to/pgte/embedding-an-all-seeing-ai-agent-in-your-web-app-41hn https://dev.to/pgte/embedding-an-all-seeing-ai-agent-in-your-web-app-41hn <p>Instead of building a complex API surface for your <strong>AI agent</strong>, make it interact with your app like a human user would. <strong>Use the Accessibility Object Model (AOM) to give your agent “eyes” to see the UI and “hands” to interact with it</strong>. This approach is simpler, more maintainable, and has the bonus of making your app more accessible for screen readers.</p> <p><a href="https://metaduck.com/embedding-an-all-seeing-ai-agent/" rel="noopener noreferrer">Read on</a></p> ai a11y webdev automation