Use when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, settings, onboarding, and empty states. Handles UX review, visual hierarchy, information architecture, cognitive load, accessibility, performance, responsive behavior, theming, anti-patterns, typography, fonts, spacing, layout, alignment, color, motion, micro-interactions, UX copy, error states, edge cases, i18n, and reusable design systems or tokens. Also use for bland designs that need to become bolder or more delightful, loud designs that should become quieter, live browser iteration on UI elements, or ambitious visual effects that should feel technically extraordinary. Not for backend-only or non-UI tasks.
Document codebase as-is with research directory for historical context.
Delegate work to builtin or custom subagents with single-agent, chain, parallel, async, forked-context, and intercom-coordinated workflows. Use for parallel codebase discovery, debug-and-fix, refinement, and multi-step tasks where a single parent agent stays in control while specialist subagents contribute locate, analyze, pattern-find, research, debug, or simplify passes.
Streamline session-to-session coordination with the intercom extension. Send messages, delegate tasks, and coordinate work across multiple atomic sessions on the same machine. Use for planner-worker workflows, cross-session context sharing, and real-time collaboration between sessions.
Create a detailed execution plan/spec/PRD for implementing features or refactors in a codebase, designed around the program's entrypoints, the doors that carry domain intent, by leveraging existing research in the codebase.
Control tmux-compatible sessions/windows/panes for interactive CLIs: list, capture output, send keys, paste text, monitor prompts.
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Example skill loaded from resources_discover