Claude Skills by lev-os

The psychological phenomenon where losses loom larger than equivalent gains, with losses being about twice as powerful emotionally

Julie Zhuo's management framework focused on purpose, people, and process from her experience scaling Facebook's design team

Camille Fournier's engineering management career ladder framework mapping six levels from mentor to CTO

Strategic framework emphasizing speed, agility, and disrupting opponent decision-making over direct attrition, achieving victory through superior tempo and indirect approaches

Recognize that models, representations, and abstractions are simplifications of reality, not reality itself—confusing the two leads to errors

Distinguish between mental models (maps) and reality (territory) to avoid confusing representations with the actual thing

Build protective buffers, safety factors, and error tolerance into decisions by requiring significant discount between price and intrinsic value - create multiple layers of protection when facing uncertainty, irreversible commitments, or high-cost failures in investing, engineering, and project planning

The additional satisfaction or benefit derived from consuming one more unit of a good or service, which typically decreases with each additional unit consumed

Two-sided network effect where supply-side users directly increase value for demand-side users, and vice versa

Google's comprehensive open-source design system providing guidelines, components, and tools for building high-quality digital experiences

Organizational alignment diagnostic examining seven interdependent elements that must be harmonized for effective execution

Reverse game theory that engineers rules and incentive structures to achieve desired outcomes when participants have private information and self-interested motivations

Bottom-up pattern detection from massive local data aggregation to identify large-scale, multi-decade societal transformation forces

Remember death to create urgency, perspective, and gratitude - live virtuously in each present moment as if it could be your last

How people mentally categorize, evaluate, and track money in separate psychological accounts rather than treating all money as fungible

Build a latticework of 100+ fundamental models from multiple disciplines to achieve worldly wisdom and superior decision-making through multidisciplinary thinking

Repeated exposure to neutral stimuli increases preference and liking, making familiarity a powerful driver of preference independent of objective quality

Design distributed systems as a collection of loosely coupled, independently deployable services organized around business capabilities

Practice present-moment awareness without judgment to reduce stress, improve focus, and respond skillfully to difficult situations

Recognize that memory is reconstructive and vulnerable to contamination by post-event information, leading to false but confident recollections

Batch processing decouples prediction from real-time requests by pre-computing predictions on scheduled intervals

Systematic methodology for choosing the most appropriate machine learning algorithm based on problem characteristics, data properties, and constraints

Streaming inference processes predictions on events as they arrive in real-time data streams with sub-second latency

Customer interview methodology that extracts truthful insights by focusing on past behavior over future intentions

Harness the compound power of motion in a consistent direction to make progress increasingly effortless over time

Understand how single firms dominate markets through barriers to entry, economies of scale, and network effects

Probabilistic modeling technique that runs thousands of scenarios with random variable inputs to quantify uncertainty and assess risk distributions

The tendency to take greater risks when protected from consequences, because someone else bears the cost of failure

Systematically explore solution space by decomposing problem into parameters, listing variations for each, then analyzing all possible combinations

Liz Wiseman's leadership framework contrasting Multipliers who amplify team intelligence 2x versus Diminishers who drain capability and create dependency

Build an interconnected network of mental models from multiple disciplines to analyze problems through diverse lenses and avoid single-perspective blind spots

Separate user interface logic into Model (data), View (presentation), and Controller (input handling) for maintainable, testable GUI applications

Separate application logic into Model (data), View (presentation), and Controller (input handling) for maintainable software architecture

Separate UI from business logic using Model (data), View (UI markup), and ViewModel (presentation logic with data binding) for testable, reactive applications

Build reactive user interfaces by binding Views to ViewModels that expose observable state and commands, separating UI from presentation logic

Identify stable strategic outcomes where no player benefits from unilaterally changing their strategy - predict where competitive dynamics settle

Design systems that improve through variation, selection pressure, and inheritance of successful traits over generations

Deliberately imagine potential losses and setbacks to build resilience and gratitude when preparing for major changes or managing anxiety about uncertain futures

Negative information, events, and experiences have disproportionately greater psychological impact than equivalent positive ones - bad is stronger than good.

Product or service becomes more valuable as more people use it, with 16 distinct types enabling strategic design choices

A product or service becomes more valuable as more people use it, creating self-reinforcing growth, winner-take-all dynamics, and durable competitive moats

10 foundational usability principles for evaluating and designing user interfaces

Buddhist framework for ending suffering through integrated practice of wisdom, ethics, and mental discipline across eight interconnected dimensions

Bell curve pattern where most values cluster around the mean with symmetrical variation

Product strategy model that aligns teams around a single metric capturing core customer value, plus supporting input metrics that drive it

Single metric framework that captures core product value and aligns teams on sustainable growth

Influence people's behavior in predictable ways without restricting their freedom by designing the choice architecture context

Choose simpler explanations over complex ones when both explain the evidence equally well, avoiding unnecessary assumptions

Translate long-term vision into executable action through one-page strategic alignment of Objectives, Goals, Strategies, and Measures

Goal-setting framework using qualitative Objectives and quantitative Key Results to align teams, drive ambitious outcomes, and measure progress