Agent skills for Grok Build

Curate personalized playlists and music recommendations with strict intent preservation.

List the account's saved music productions with metadata and audio_url

Run a mastering pass (LUFS loudness normalization + peak limiting) on an existing production

MusicKit Now Playing integration patterns.

Applies Elon Musk's first-principles thinking, cost breakdown formulas, and engineering algorithms to rigorously evaluate technical…

Apply the ordered question-delete-simplify-accelerate-automate method to project concepts, product or technical designs, workflows, and…

CRITICAL: Use for mutability issues. Triggers: E0596, E0499, E0502, cannot borrow as mutable, already borrowed as immutable, mut, &mut…

Run Stryker mutation testing on the source files changed in the current branch (vs origin/master) across vitest packages.

Run Stryker mutation testing on a single source file and return a structured, token-frugal report that's pipeable to a follow-up…

Use when needing thread-safe primitives for performance-critical code.

Web app MVP launch checklist knowledge. Auto-triggered when conversation involves "launch readiness", "MVP checklist", "production ready"…

Automate Mx Toolbox tasks via Rube MCP (Composio).

List PRs opened today that are assigned to me or the move-destinations team, excluding external contributors

Display your personalized social feed from AI book-lover personas

Execute read-only SQL queries against multiple MySQL databases.

When the user wants to plan, design, or implement an A/B test or experiment.

When the user wants to set up, improve, or audit analytics tracking and measurement.

When the user wants to create competitor comparison or alternative pages for SEO and sales enablement.

When the user wants to plan a content strategy, decide what content to create, or figure out what topics to cover.

When the user wants to edit, review, or improve existing marketing copy.

When the user wants to write, rewrite, or improve marketing copy for any page — including homepage, landing pages, pricing pages, feature…