Use when you need to drive the BUILT read-frog extension in real Chrome with Puppeteer — verifying a translation fix end-to-end, reproducing a DOM bug on a fixture page, or asserting restore/toggle behavior programmatically. Covers Chrome 137+ extension loading, config patching, and message-based toggling. For Playwright/Edge screenshots use extension-real-browser-testing; for leaks/freezes use extension-perf-forensics.
Diagnose extension-caused memory leaks, freezes, and CPU storms on live third-party sites via controlled attribution experiments, CDP metrics, heap snapshots, and browser-process trace profiling that works even when the renderer is starved.
Survey a codebase's animation and motion code as a senior motion advisor, then produce a prioritized audit and self-contained implementation plans for other agents (or cheaper models) to execute. Read-only on source code — it plans improvements, it does not apply them. Use when the user asks to "improve the animations", "audit the motion", "make this app feel better", or wants a roadmap of animation fixes rather than a review of a single diff.
Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.
Test browser extensions in real browsers using built artifacts, Edge + Playwright automation, runtime-message triggering, DOM debugging, and truthful screenshot capture.
Create a pull request, optionally for the issue provided as argument
Prepare all work before creating a pull request, optionally for the issue provided as argument
Use when writing or reviewing database/config migration scripts or migration registries. Enforces frozen-snapshot migrations, safe registration, and lean import boundaries.