Skill Claude CodeCodex
Guides systematic project analysis, codebase exploration, and architecture pattern recognition. Use when understanding new codebases, onboarding to projects, or investigating system structure.
Skill Claude CodeCodex
Guides REST and GraphQL API design, endpoint patterns, request/response schemas, versioning, and API best practices. Use when building APIs, designing endpoints, or reviewing API contracts.
Skill Claude CodeCodex
Guides software architecture decisions, design patterns, and system design principles. Use when designing systems, choosing patterns, or making architectural decisions.
Skill Claude CodeCodex
Guides test strategy, TDD/BDD approaches, test coverage planning, and testing best practices. Use when designing test suites, improving coverage, or choosing testing approaches.
Skill Claude CodeCodex
Guides git workflows, branching strategies, commit conventions, and version control best practices. Use when managing repositories, creating branches, or handling merges.
Skill Claude CodeCodex
Guides performance optimization, profiling techniques, and bottleneck identification. Use when improving application speed, reducing resource usage, or diagnosing performance issues.
Skill Claude CodeCodex
CRITICAL skill for executing multiple Task tool calls in a SINGLE message for true parallelism. Essential for efficient multi-task workflows, subagent coordination, and maximizing throughput.
Skill Claude CodeCodex
Reference for X algorithm engagement types and signals. Use when analyzing engagement metrics, action predictions, or understanding what signals the algorithm tracks.
Skill Claude CodeCodex
Explain why posts get filtered from the X feed. Use when analyzing why a post was removed, not shown, or filtered out of recommendations.
Skill Claude CodeCodex
Explain the Phoenix ML model architecture for X recommendations. Use when users ask about embeddings, transformers, how predictions work, or ML model details.
Skill Claude CodeCodex
Explain the complete X recommendation algorithm pipeline. Use when users ask how posts are ranked, how the algorithm works, or want an overview of the recommendation system.
Skill Claude CodeCodex
Calculate and explain X algorithm engagement scores. Use when analyzing post ranking, understanding score weights, engagement potential, or why one post ranks higher than another.
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: