Manifest, developed by Omfang, serves as an action layer for AI agents, transforming any webpage into a structured representation that delineates the capabilities available to an agent. By submitting a URL to the Manifest API, developers obtain a clean JSON output that details the state of the page, encompassing available buttons, forms, inputs, navigation links, mandatory fields, and interdependencies among actions. Manifest operates by loading the webpage in a genuine Chromium browser after executing JavaScript, examining the accessibility tree utilized by screen readers, and cross-referencing it with the underlying DOM to capture intricate details often overlooked by the accessibility layer, such as input types, placeholders, disabled states, and submission prerequisites. Once potential actions are identified, their locators are resolved with precision instead of relying on model-generated guesses; any ambiguous matches are flagged as uncertain rather than assumed. This process provides agents with a machine-readable framework that enhances their reasoning capabilities regarding interactions like clicking, filling, or submitting without depending on screenshots or fragile CSS selectors. Ultimately, Manifest elevates the efficiency and reliability of AI agents in navigating and interacting with web content.