Refactoring
Code restructuring and optimization
pmf-survey
by wdavidturner
Use when asked to "PMF survey", "measure product-market fit", "40% rule", "Sean Ellis test", "Rahul Vohra method", or "how disappointed would you be". Helps quantify product-market fit and systematically improve it. The PMF Survey framework (created by Sean Ellis, popularized by Rahul Vohra at Superhuman) measures how disappointed users would be without your product and turns that data into a roadmap.
cobrapy
by tondevrel
Constraints-Based Reconstruction and Analysis for Python. Used for modeling large-scale metabolic networks in microorganisms.
okrs
by wdavidturner
Use when asked to "set OKRs", "objectives and key results", "quarterly OKR planning", "align objectives", "measure OKR progress", or "focus priorities with OKRs". Helps teams focus on what matters most and create a cadence of progress. The OKR framework (originated by Andy Grove at Intel, popularized by John Doerr at Google) creates alignment, focus, and learning cycles. Christina Wodtke's Radical Focus approach emphasizes simplicity and avoiding common pitfalls.
ase
by tondevrel
Atomic Simulation Environment - a set of tools for setting up, manipulating, running, visualizing, and analyzing atomistic simulations. Acts as a universal interface between Python and numerous quantum chemical and molecular dynamics codes. Use for building atomic structures, geometry optimization, molecular dynamics simulations, transition state searches (NEB), file format conversion (CIF, XYZ, POSCAR, PDB), electronic property calculations (DOS, band structures), and automating simulation workflows with DFT/MD codes like VASP, GPAW, Quantum ESPRESSO, LAMMPS.
pyscf
by tondevrel
Comprehensive guide for PySCF - Python-based Simulations of Chemistry Framework. Use for ab initio quantum chemistry calculations including Hartree-Fock, DFT, MP2, CCSD, geometry optimization, excited states, and molecular properties. Industry-standard library for electronic structure calculations.
thinking-in-bets
by wdavidturner
Use when asked to "thinking in bets", "make decisions under uncertainty", "think probabilistically", "avoid resulting", "separate decision quality from outcomes", or "reduce bias in decisions". Helps make explicit bets and evaluate decisions on process, not results. The Thinking in Bets framework (from Annie Duke) applies poker strategy to business and life decisions.
hierarchy-of-engagement
by wdavidturner
Use when asked to "define our core action", "North Star metric", "accruing benefits", "improve retention mechanics", "hierarchy of engagement", or "Sarah Tavel framework". Helps consumer products identify the actions and benefits that drive long-term retention. The Hierarchy of Engagement framework (created by Sarah Tavel at Benchmark) maps progression from core action to mounting loss.
qbcore-framework
by germanfndez
QBCore Framework for FiveM - Player management, jobs, gangs, economy, inventory. Use when creating QBCore resources or working with Player object, PlayerData, QBCore functions.
db-query-optimization
by KentoShimizu
"Query optimization workflow for reducing latency and resource cost through plan-aware rewrites and access-path improvements. Use when hot-path query behavior is the bottleneck; do not use for conceptual schema redesign without workload evidence."
architecture-clean-architecture
by KentoShimizu
"Clean Architecture workflow for enforcing dependency direction, stable domain boundaries, and use-case-centered application design. Use when teams must separate business rules from frameworks and delivery mechanisms; do not use for isolated module cleanup without boundary implications."
growth-marketing-experimentation
by dmend3z
A skill for running growth marketing experiments. Use when a user wants to A/B test, optimize funnels, or build a culture of experimentation. Trigger keywords: growth marketing, A/B testing, multivariate testing, funnel optimization, AARRR.
crm-customer-data
by dmend3z
This skill helps you master Customer Relationship Management (CRM) and customer data. Use it to unify customer data, automate marketing and sales, integrate your martech stack, and set strategic goals. Triggers: CRM, customer data, marketing automation, sales automation.
bd-clean
by MichaelVessia
Review and consolidate beads issues
anthropic-prompt-engineer
by zircote
Master Anthropic's prompt engineering techniques to generate new prompts or improve existing ones using best practices for Claude AI models.
refactor
by whichguy
Refactor code for improved quality and structure. Dispatches to code-refactor agent for large multi-file refactoring operations. AUTOMATICALLY INVOKE when: - "refactor this", "clean up", "reduce duplication", "DRY this up" - "simplify", "modernize", "restructure" - When detecting code duplication or technical debt NOT for: Bug fixes (fix the bug directly), feature additions (use /develop)
torch-sim Skill
by fl-sean03
data-analysis skill - Analyzing torch-sim outputs
java
by mbarbieri
Use when writing, modifying, or reviewing Java code - applies SOLID principles, clean code practices, minimal documentation, and pragmatic abstraction to create maintainable Java applications
image-enhancer
by Crumbgrabber
Improves the quality of images, especially screenshots, by enhancing
clean-code-principles
by emvnuel
Detects violations of Clean Code principles and suggests refactorings. Use when reviewing code quality, improving readability, or refactoring methods, classes, and modules.
clean-permissions
by MichaelVessia
Clean up Claude Code permissions allowlist
barrel-craft
by marcioaltoe
Expert in barrel file generation and import organization. Use when user creates index.ts/tsx files, needs clean import paths, wants to organize exports, or mentions barrel files. Examples - "create barrel files", "generate index exports", "organize imports", "I created a new index.ts", "clean up barrel files", "update barrel exports".
backend-architect
by Bikach
Expert senior en architecture backend pour accompagner le développement (conception, implémentation, review, refactoring). Architecture hexagonale, DDD, SOLID, clean code, tests. Utiliser pour concevoir de nouvelles features, développer du code, reviewer, refactorer, ou résoudre des problèmes architecturaux.
view-refactor
by patrickserrano
Refactor SwiftUI view files for consistent structure, dependency injection, and Observation usage. Use when asked to clean up a SwiftUI view's layout, handle view models safely, or standardize how dependencies are initialized and passed.
open-closed-principle
by yanko-belov
Use when adding new functionality to existing code. Use when tempted to add if/else or switch branches. Use when extending behavior of existing classes.