MCP App StoreMCP App StoreThis skill enables an agent to perform high-precision instrumentation of the Chromium browser's C++ source code. By injecting TRACE_EVENT macros, the agent can break down "black box" latency gaps on the main thread, allowing developers to see exactly where time is being spent during execution.
Use this skill when you have a target C++ method that is causing performance issues or latency gaps and you need to add granular tracing to analyze its internal behavior without introducing performance optimizations or refactoring.
autoninja and git cl format.Designed for agents with deep C++ filesystem access, codesearch capabilities, and integration with the Chromium build system (autoninja, git cl).
This skill has not been reviewed by our automated audit pipeline yet.
NullAway Guidance
Practical guide to resolving NullAway static analysis issues and migrating code to @NullMarked null-safety in Chromium Java code.
Create Web Applications Browsertest
Guides writing end-to-end browser tests for Chrome web applications using WebAppBrowserTestBase, with setup, waiting patterns, and state validation.
OpenTestAI
Automated, high-confidence AI testing: bug detection, persona feedback, and prioritized test-case generation using many specialized tester profiles.
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Authoritative guidance on choosing and using Go built-in and standard-library data structures, with practical best practices for slices, maps, arrays, container
React Development Expert
Provides authoritative React guidance on hooks, state patterns, Server Components, performance optimization, and common architectural patterns.
Code Reviewer
Perform structured, prioritized code reviews that find correctness, security, performance, reliability, and testing issues and provide concrete fix suggestions.
Datadog Live Debugger (dd-debugger)
Place live log probes on running services to capture runtime arguments and variables without redeploying (Datadog Live Debugger).
dotLottie Web
Guidelines and patterns for implementing performant dotLottie/Lottie animations on the web (vanilla JS and React), including workers, state machines, and themin
Party Engine Skill
Guidance and examples for using the @cazala/party particle engine (engine lifecycle, modules, WebGPU vs CPU patterns) in custom apps.
Party Skill
Programmatic guide for the @cazala/party library: engine setup, modules, particle APIs, and performance tips for WebGPU and CPU runtimes.