d3k Agent Runtime

d3k is the local web runtime for this task. It starts the dev server behind a stable Portless URL, owns a project-stable Chrome profile, and records server logs, browser console output, network activity, interactions, and screenshots in one timeline.

When this skill triggers, operate d3k. Do not merely tell the user how to run it.

Interpret the Request

"Let me test/dev my project with d3k": prepare the runtime and headed browser, confirm it is ready, then hand control to the user. Wait for them to reproduce the issue before inspecting evidence.
"Test/debug/fix this with d3k": prepare the runtime, then drive the managed browser and investigate autonomously.
If ambiguous, start the runtime and browser first. That action is safe and useful for either path.

Start or Reuse d3k

Run from the project root.

Check for an existing project runtime: