Claude Code plugins
6 plugins from public Claude Code marketplaces. Each one bundles skills, slash commands, agents, hooks or MCP servers that install together.
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UX and UI design skills including Refactoring UI, iOS HIG design, usability heuristics, habit-forming product design, behavior design for retention, web typography, award-winning top-design, Steve Jobs-style design reviews, and Don Norman's foundational design principles
Claude for Product Designers: 32 Claude skills for one piece of design work, from the request to the result, in eight stages: frame the problem with a problem framing brief, a user journey map and a HEART metrics plan; explore and decide with design principles, an options trade-off table, a rationale doc and a decision log; design with context through a design system rules file, a product context file, the user flow, the copy deck and every UI state; prototype around one question; critique against a quality bar, ten heuristics and an accessibility review; test with real users; hand off with a spec and a UX debt register; then show the impact in a review deck, a pushback brief, an impact write-up and a portfolio case study. For product designers, UX and UI designers, and designers who do their own research. Claude drafts, checks and explains; you make the design decisions, real users test the work, and nothing is presented as tested, accessible or ready to ship that was not.
productivity
Scenario-driven UI development: a versioned design chain in docs/ux/ that runs product vision -> personas, JTBD, journeys and stories -> user flows -> a screens+states UI map with Figma frames -> traced use-case scenarios -> evidence-backed audits -> concrete fix plans. Skills: vision, ux-foundation, ux-flows, ux-scenarios, ux-audit, brand-voice, copywriting. /ux is the single plain-language entry point and reaches every skill; a stdlib linter fails on doc drift; a tag-indexed best-practices catalog, PRN heuristics and component guidelines guide design; one style pack (via the sheleg-design companion) locks the visual identity.
development
Manual and exploratory testing: scripted test cases, session-based exploratory charters, decision-table and state-transition test design, and bug bashes. Covers SBTM, Whittaker's tours, Bach and Bolton's heuristics, UAT scripts, and PROOF debriefs. A critic agent (test-script-quality-critic) flags vague preconditions and bundled steps in authored scripts.
tooling
Autonomous optimization loop — iterates on prompts, skills, templates, or code overnight. Two evaluation modes: deterministic (eval.py with proxy heuristics) for mechanical checks, or AI judge (LLM rubric scoring) for creative/subjective quality. Uses 4-way agent separation for unbiased evaluation.
76 skills covering MILP modeling with Gurobi, decomposition methods (column generation, Benders, Lagrangian), all major metaheuristics (GA, PSO, SA, tabu, ALNS, BRKGA, ...), encodings and operators, classic problems (TSP, VRP, scheduling, knapsack, facility location), and optimization research workflows with numpy, pandas, matplotlib, and Optuna
optimization