Load a Chrome extension and launch the browser. Returns extension ID.

Navigate to a URL in the browser.

Get an accessibility snapshot of the page, popup, or side panel.

Read from chrome.storage (local/sync/session).

Write to chrome.storage (local/sync/session).

Execute JavaScript in the extension Service Worker context.

Get console logs from all extension contexts (page, SW, popup, sidepanel).

Click an element by CSS selector.

Type text into an input element by CSS selector.

Wait for an element to appear, disappear, or change visibility.

Validate manifest.json against MV3 requirements (no browser needed).

Open the extension popup in a new tab and return accessibility snapshot.

Open the extension side panel in a new tab and return accessibility snapshot.

List declarativeNetRequest rules (dynamic/session/static).

Check declared vs granted extension permissions.

Get declarativeNetRequest matched rules (which rules fired). Requires declarativeNetRequestFeedback permission.

Get extension errors from chrome://extensions and recent SW crash logs.

Send a message via chrome.runtime.sendMessage() and capture the response.

Execute JavaScript in an extension popup or side panel page context (has access to chrome.* APIs).

Take a screenshot of the page, popup, or side panel. Returns base64 PNG.

List captured network requests with optional URL filter.

Execute JavaScript in the page context (ISOLATED or MAIN world).

Reload the extension and re-attach to the Service Worker.