Skill Claude CodeCodex
Test systems with no reliable oracle using metamorphic relations — equivalence-preserving input transforms whose outputs must agree, with concrete relations for LLM/NLP stability.
Skill Claude CodeCodex
Mobile application development (iOS, Android, React Native).
Skill Claude CodeCodex
Deep expertise in Node.js internals, Fastify architecture, and advanced TypeScript.
Skill Claude CodeCodex
Make LLM and agent outputs safe and machine-reliable via schema validation and PII masking.
Skill Claude CodeCodex
Property-based testing with Python Hypothesis — find invariants, write @given strategies, and model stateful systems with RuleBasedStateMachine.
Skill Claude CodeCodex
Strategies for high-performance AI/LLM systems (Context Management, Prompt Engineering, RAG, Inference Tuning).
Skill Claude CodeCodex
Strategies for high-performance Go systems (Goroutines, Channels, Pprof, Memory Alignment).
Skill Claude CodeCodex
Strategies for high-performance, scalable Laravel systems (Octane, DB Optimization, Redis, Microservices).
Skill Claude CodeCodex
Strategies for high-performance, scalable Node.js systems (Worker Threads, ESM, Observability, Clean Architecture).
Skill Claude CodeCodex
High-performance modern PHP — PHP 8.4/8.5, OPcache+JIT, FrankenPHP workers, Composer, Symfony/Laravel, PHPStan/Psalm, Pest.
Skill Claude CodeCodex
Strategies for high-performance Python systems (FastAPI, Asyncio, UVloop, Memory Optimization).
Skill Claude CodeCodex
Safe refactoring with test guard — improve code quality without changing behavior.
Skill Claude CodeCodex
Implementing OWASP Proactive Controls (Input Validation, Output Encoding, AuthZ/AuthN).
Skill Claude CodeCodex
Convert hand-drawn sketches and photos into formal digital diagrams using image recognition + diagram generation.
Skill Claude CodeCodex
Spec-first workflow where an executable, testable specification is written before code and becomes the single source of truth that tests verify against, flowing spec → acceptance criteria → tasks → implementation.
Skill Claude CodeCodex
Red-Green-Refactor TDD loop with mandatory false-positive check.
Skill Claude CodeCodex
Formulates a comprehensive testing strategy (Pyramid vs Trophy) and selects appropriate tools.
Skill Claude CodeCodex
Estimate Big-O time complexity of code via static analysis (tree-sitter MCP).
Skill Claude CodeCodex
Create, manage, and search tldraw canvases for visual design, wireframing, and UI prototyping.
Skill Claude CodeCodex
Dynamically building simple MCP servers or Python scripts to solve unique problems.
Skill Claude CodeCodex
Generate User Interfaces (Web, CLI, Mobile) using GenUI, HTMX, or TUI patterns.
Skill Claude CodeCodex
Translate aesthetic 'vibe' requests (e.g. 90s cyberpunk, Apple minimalism) into concrete CSS/animation/copy changes.
Skill Claude CodeCodex
Create high-fidelity UI designs, color palettes, and design systems.
Skill Claude CodeCodex
Manage connections, handshakes, and protocol negotiation between agents (MCP, A2A, ACP).
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: