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copyleftdev/sk1llz

The skills of the gods, encoded for mortals. Legendary engineer coding philosophies as Anthropic-compatible Skills.

95 skills
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hejlsberg

copyleftdev/sk1llz

3
This skill helps you design productive, IDE-friendly languages and type systems inspired by Hejlsberg, emphasizing gradual typing and tooling.
kennedy

copyleftdev/sk1llz

3
This skill helps you write high-performance Go code with mechanical sympathy and data-oriented design, improving execution understanding and readability.
dean

copyleftdev/sk1llz

3
This skill helps you design distributed systems at planet scale with Jeff Dean principles, optimizing tail latency and scalability.
parent

copyleftdev/sk1llz

3
This skill helps you write cleaner C++ by applying Sean Parent's no raw loops philosophy, replacing loops with expressive algorithms for clarity and
lane

copyleftdev/sk1llz

3
This skill helps you design APIs as products using OpenAPI first, governance, and mocking to accelerate public platform development.
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helland

copyleftdev/sk1llz

3
This skill helps design scalable distributed data systems inspired by Pat Helland, emphasizing idempotency, entity-based design, and messaging over distributed
gettys-bufferbloat

copyleftdev/sk1llz

3
This skill helps you diagnose and optimize latency in networks by applying bufferbloat principles, fq_codel guidance, and per-flow queue management.
property-based

copyleftdev/sk1llz

3
This skill helps you apply John Hughes property-based testing concepts to Python code, generating inputs, checking invariants, and shrinking failures.
thompson

copyleftdev/sk1llz

3
This skill helps you design small, composable CLI tools by applying Unix philosophy, one-task-per-tool discipline, and straightforward text-based interfaces.
stroustrup

copyleftdev/sk1llz

3
This skill helps you write C++ in Stroustrup style, emphasizing type safety, RAII, and zero-overhead abstractions for clear, efficient systems.
eich

copyleftdev/sk1llz

3
This skill helps you write JavaScript with deep language fundamentals, emphasizing first-class functions, prototypes, and dynamic typing for powerful, flexible
vanrossum

copyleftdev/sk1llz

3
This skill helps you write Python code that emphasizes readability and simplicity following Guido van Rossum's Pythonic principles.
abramov

copyleftdev/sk1llz

3
This skill helps you write predictable, composable React state, colocate data, and use custom hooks to improve developer experience.
kelley

copyleftdev/sk1llz

3
This skill helps you write Zig code in Andrew Kelley style, emphasizing simplicity, explicit behavior, and compile-time metaprogramming for safer systems.
citadel

copyleftdev/sk1llz

3
This skill helps you implement ultra-low-latency trading systems with deterministic execution, kernel bypass networking, and lock-free structures inspired by
uunet

copyleftdev/sk1llz

3
This skill helps you design and secure global-scale networks and systems with resilience, visibility, and data-driven security practices across backbone
renaissance

copyleftdev/sk1llz

3
This skill helps you design and test Renaissance-style statistical arbitrage systems using rigorous backtesting, signal integration, and robust risk management.
kleppmann

copyleftdev/sk1llz

3
This skill helps you design data-intensive systems by applying Kleppmann-style trade-offs, ensuring reliability, observability, and scalable data architectures.
two-sigma

copyleftdev/sk1llz

3
This skill helps you build scalable ML trading pipelines inspired by Two Sigma, emphasizing feature stores, distributed backtesting, and reproducible workflows.
bellard

copyleftdev/sk1llz

3
This skill helps you design ultra-minimal, high-performance systems in the Bellard mold, emphasizing deep domain mastery and single-file pragmatism.
pall

copyleftdev/sk1llz

3
This skill helps you design and optimize high-performance JIT compilers and interpreters by applying trace-based, microarchitecture-aware techniques.
click

copyleftdev/sk1llz

3
This skill analyzes JVM JIT design and applies Cliff Click style optimizations to improve dynamic language performance in runtimes.
muratori

copyleftdev/sk1llz

3
This skill helps you write performance-aware Python code by emphasizing hardware realities, measuring everything, and avoiding unnecessary abstractions.
forensics-team

copyleftdev/sk1llz

3
This skill analyzes PCAPs from the OSI outward, delivering expert forensics insights with native Linux tools and precise attribution.
mendez

copyleftdev/sk1llz

3
This skill helps you apply AsyncAPI event-first design principles to create decoupled, schema-governed message contracts for scalable microservices.
rodriguez

copyleftdev/sk1llz

3
This skill helps you build threat hunting programs by applying Roberto Rodriguez's playbook with reproducible notebooks, data-driven tests, and open-source
roth

copyleftdev/sk1llz

3
This skill helps you craft portable detection rules with Sigma and YARA, enabling cross-platform sharing and quality through community-driven patterns.
hypothesis

copyleftdev/sk1llz

3
This skill helps you test Python code with stateful property-based testing, shrinking, and example databases inspired by David MacIver's Hypothesis approach.
cheney

copyleftdev/sk1llz

3
This skill helps you write practical production Go code in the style of Dave Cheney, emphasizing clear errors, performance, and maintainability.
osmani

copyleftdev/sk1llz

3
This skill helps you apply Addy Osmani's performance-first patterns to build fast, well-structured Python apps with thoughtful design.
cloudflare

copyleftdev/sk1llz

3
This skill helps you design and optimize globally distributed systems with edge computing, kernel bypass, and real-time measurement inspired by Cloudflare
matsakis

copyleftdev/sk1llz

3
This skill helps you write Rust-style ownership and lifetime guidance in Python, applying Matsakis-inspired patterns to APIs for safer borrows.
turon

copyleftdev/sk1llz

3
This skill helps you design user-friendly public APIs and async Rust interfaces with Turon-inspired patterns for safe, ergonomic usage.
virtu

copyleftdev/sk1llz

3
This skill helps you design and optimize Virtu-style execution systems by modeling market microstructure, routing intelligently, and measuring execution
hickey

copyleftdev/sk1llz

3
This skill helps you design simple, immutable data oriented Python code inspired by Rich Hickey, making state explicit and maintainable.
stevens

copyleftdev/sk1llz

3
This skill helps you understand network protocols byte-by-byte and troubleshoot with packet-level insights, using Stevens-style analysis to debug and implement
beck-tdd

copyleftdev/sk1llz

3
This skill helps you adopt Kent Beck's test-driven development discipline, guiding red-green-refactor, small steps, and emergent design for reliable Python
crockford

copyleftdev/sk1llz

3
This skill writes JavaScript in the Crockford style, promoting a reliable subset, clarity, and maintainable code with strict patterns.
peyton-jones

copyleftdev/sk1llz

3
This skill helps you write practical, compiler-friendly Haskell and Python alike by teaching laziness, purity, and profiling-driven optimization for real-world
wadler

copyleftdev/sk1llz

3
This skill helps you write Python with Wadler-inspired monadic patterns, guiding type-driven design and clean composable abstractions.
torvalds

copyleftdev/sk1llz

3
This skill helps you write high-performance systems and kernel-level code with pragmatic design, data-structure focus, and rigorous code review.
lampson

copyleftdev/sk1llz

3
This skill helps you make architectural decisions and design evolving APIs using Butler Lampson's abstraction, interfaces, and security principles.
simpson

copyleftdev/sk1llz

3
This skill helps you write JavaScript with Kyle Simpson depth, focusing on scope, closures, this, prototypes, and async mechanics for real understanding.
reitz

copyleftdev/sk1llz

3
This skill helps you design Python APIs in the Kenneth Reitz style, emphasizing simplicity, human-friendly interfaces, and meaningful defaults.
cro

copyleftdev/sk1llz

3
This skill helps you write practical Zig code in the style of Loris Cro, emphasizing build system mastery and real-world patterns.
skill-template

copyleftdev/sk1llz

3
This skill writes Python code in the style and philosophy of a legendary engineer, applying their design principles to produce clean, robust solutions.
bolton-rst

copyleftdev/sk1llz

3
This skill helps testers apply Michael Bolton's Rapid Software Testing principles to distinguish testing from checking and design effective strategies.
meyers

copyleftdev/sk1llz

3
This skill helps you write robust C++ code by applying Meyers Effective C++ guidelines for safer, clearer, and more maintainable interfaces.
alexandrescu

copyleftdev/sk1llz

3
This skill helps you apply Andrei Alexandrescu's Modern C++ Design, promoting policy-based templates and compile-time abstractions for zero-runtime overhead.
jacobson

copyleftdev/sk1llz

3
This skill guides you to optimize network performance using Jacobson-inspired congestion control, RTT-based adaptation, and robust traceroute diagnostics.
deterministic-simulation

copyleftdev/sk1llz

3
This skill helps you explore distributed systems correctness by deterministic simulation, enabling rapid failure reproduction and bug discovery with seed-based
bach

copyleftdev/sk1llz

3
This skill guides you through exploratory testing in the James Bach style, blending learning, design, and execution to uncover hidden risks.
sutter

copyleftdev/sk1llz

3
This skill helps you write robust C++ following Herb Sutter's exceptional principles, emphasizing exception safety, const correctness, and defensive
swing-trading

copyleftdev/sk1llz

3
This skill helps you identify Minervini-style swing setups by applying SEPA principles, VCP patterns, and strict risk controls for stock momentum trades.
griesemer

copyleftdev/sk1llz

3
This skill helps you design Go APIs with precise semantics and clean syntax inspired by Griesemer, improving type safety and readability.
hettinger

copyleftdev/sk1llz

3
This skill helps you write idiomatic Python in the Hettinger style, using generators, iterators, and built-ins for clean, efficient code.
cox

copyleftdev/sk1llz

3
This skill helps you design Go packages and tooling with Russ Cox's correctness and compatibility principles, emphasizing reproducible builds and stable APIs.
bos

copyleftdev/sk1llz

3
This skill helps you write correct, efficient concurrent Rust code by applying Mara Bos-inspired memory-ordering guidance and safe patterns.
dodds

copyleftdev/sk1llz

3
This skill helps you write user-focused tests in the Kent Dodds style, boosting React maintainability and confidence through integration-driven practices.
fielding

copyleftdev/sk1llz

3
This skill helps you design durable REST APIs by applying Fielding's constraints to ensure statelessness, hypermedia, caching, and uniform interfaces.
hashimoto

copyleftdev/sk1llz

3
This skill helps you design developer-friendly CLIs with consistent patterns, helpful errors, and machine-readable output inspired by HashiCorp UX.
pavlo

copyleftdev/sk1llz

3
This skill helps you optimize database performance following Pavlo's rigorous benchmarking, internal understanding, and architecture-driven decisions.
stonebraker

copyleftdev/sk1llz

3
This skill guides database architecture design inspired by Stonebraker, emphasizing workload-specific, shared-nothing, and durable, extensible storage and
s2-geometry

copyleftdev/sk1llz

3
This skill helps you build geospatial services with S2 by indexing and querying spherical data using Hilbert-based cell IDs for efficient proximity and
vogels

copyleftdev/sk1llz

3
This skill helps you design resilient cloud-native systems using Vogels principles, emphasizing failure handling, eventual consistency, and API-driven
google-search-architecture

copyleftdev/sk1llz

3
This skill helps you design scalable search architectures by translating Google's multi-stage ranking pipeline into actionable patterns and signals.
bianco

copyleftdev/sk1llz

3
This skill helps you design threat detection using the Pyramid of Pain and Threat Hunting Maturity Model to maximize adversary pain.
mitre-attack

copyleftdev/sk1llz

3
This skill maps threats to MITRE ATT&CK tactics and techniques to improve detection coverage and threat intelligence.
fowler

copyleftdev/sk1llz

3
This skill helps design scalable enterprise systems by applying Martin Fowler's refactoring, continuous integration, and evolution-focused patterns for
gray

copyleftdev/sk1llz

3
This skill helps design reliable data systems using Jim Gray's ACID principles, WAL, and fault-tolerant recovery to ensure data integrity.
lamport

copyleftdev/sk1llz

3
This skill helps you design and verify distributed systems using Lamport's formal methods, logical clocks, and state machine reasoning before coding.
mutation-testing

copyleftdev/sk1llz

3
This skill helps you evaluate test quality using mutation testing concepts from Lipton, guiding you to improve coverage and detect weaknesses.
mean-reversion

copyleftdev/sk1llz

3
This skill helps you implement Scarface-inspired mean reversion by applying standard deviation bands and RSI signals with defined risk.
stepanov

copyleftdev/sk1llz

3
This skill helps you design reusable algorithms following Stepanov's generic programming, focusing on minimal requirements, concepts, and iterator-based
pike

copyleftdev/sk1llz

3
This skill helps you write clear, concurrent Go code in the Rob Pike style, emphasizing simplicity, channels, and small interfaces for maintainable software.
beazley

copyleftdev/sk1llz

3
This skill helps you write advanced Python in the Beazley style, emphasizing generators, coroutines, metaprogramming, and deep interpreter understanding.
ramalho

copyleftdev/sk1llz

3
This skill helps you write idiomatic Python in the Ramalho Fluent Python style, focusing on the data model and advanced idioms.
klabnik

copyleftdev/sk1llz

3
This skill teaches Rust-style clear, idiomatic coding by writing examples and docs that illuminate concepts and teach as they run.
ronacher

copyleftdev/sk1llz

3
This skill helps you write Python code in Armin Ronacher's pragmatic, explicit, and composable style for extensible, maintainable frameworks.
hoare

copyleftdev/sk1llz

3
This skill helps you design safe, memory-efficient Rust code inspired by Graydon Hoare's vision, emphasizing ownership, zero-cost abstractions, and practical
levien

copyleftdev/sk1llz

3
This skill helps you design declarative, GPU-accelerated native UIs with synchronized trees and Rust patterns inspired by Raph Levien.
nichols

copyleftdev/sk1llz

3
This skill helps you write practical, safe, and maintainable Rust code in the spirit of Carol Nichols, with clear explanations and real-world patterns.
aqr

copyleftdev/sk1llz

3
This skill helps you build transparent, academically grounded factor investing models in Python, guiding portfolio construction and risk-aware implementation.
de-shaw

copyleftdev/sk1llz

3
This skill helps you build systematic trading platforms and quantitative research pipelines inspired by D.E.
continuous-fuzzing

copyleftdev/sk1llz

3
This skill helps you implement Google's continuous fuzzing framework with OSS-Fuzz and ClusterFuzz to automate bug discovery and CI/CD integration.
material-design

copyleftdev/sk1llz

3
This skill helps you implement Google Material Design principles to create accessible, delightful interfaces across platforms with consistent elevation,
sre

copyleftdev/sk1llz

3
This skill helps you implement Google's SRE practices to improve reliability, manage error budgets, and automate toil while maintaining velocity.
enterprise-chaos

copyleftdev/sk1llz

3
This skill guides enterprise chaos engineering with safety controls and categorized attacks to safely validate resilience and compliance.
hashicorp

copyleftdev/sk1llz

3
This skill guides platform engineering by embracing the Tao of HashiCorp, focusing on workflows, immutability, and codified, composable infrastructure.
jane-street

copyleftdev/sk1llz

3
This skill helps you build robust, correct-by-construction market systems inspired by Jane Street, using functional patterns, strong types, and explicit error
jump-trading

copyleftdev/sk1llz

3
This skill helps you design ultra-low-latency trading systems using FPGA, network optimization, and hardware-software co-design principles.
chaos-engineering

copyleftdev/sk1llz

3
This skill helps you validate system resilience using chaos engineering principles to safely inject failures and verify steady-state throughout production.
blow

copyleftdev/sk1llz

3
This skill helps you design game engines and languages inspired by Jonathan Blow, prioritizing programmer productivity and compile-time efficiency.
lattner

copyleftdev/sk1llz

3
This skill helps you build modular compiler infrastructure and progressive lowering, enabling reusable libraries and clearer diagnostics for language tooling.