Comprehensive sets of standards and practices designed to elevate the capabilities of AI coding agents.
Skill Claude CodeCodex
Architecture Decision Record skill for documenting significant architectural decisions with context, options, and consequences. Use during the Research phase when choosing between approaches, or whenever the user asks to document an architectural decision.
Skill Claude CodeCodex
Shared protocols for all agents in the multi-agent pipeline: recursive nesting, pre-implementation restatement, agent spawn protocol, parallel dispatch format, completion reporting, and sovereign subagent awareness. Load this skill instead of inlining these protocols in every agent file.
Skill Claude CodeCodex
Angular (19+) architecture: signals, standalone components, DI, OnPush change detection, and RxJS integration. Use when developing or refactoring Angular web apps. Pair with typescript-idioms.
Skill Claude CodeCodex
OpenAPI 3.1 specification writing, request/response examples, error documentation, versioning, and interactive API portal patterns.
Skill Claude CodeCodex
Axum (0.8+) web framework patterns: type-safe extractors, Tower middleware, route routing, and graceful shutdown. Use when implementing HTTP APIs or web services in Rust. Pair with rust-idioms.
Skill Claude CodeCodex
Playwright browser automation via MCP. Covers E2E testing, UI review, web scraping, screenshot capture, and general browser interaction. MCP-first — CLI is fallback only.
Skill Claude CodeCodex
Controlled failure injection: hypothesis design, blast radius control, safety mechanisms, game day planning, and resilience verification.
Skill Claude CodeCodex needs its repo
CI/CD pipeline architecture: GitHub Actions, GitLab CI, multi-stage Dockerfiles, vulnerability scanning, SBOM attestation, and deployment promotion. Use when designing, creating, or debugging pipelines, container builds, or release workflows.
Skill Claude CodeCodex
CLI tool design, argument parsing, interactive prompts, shell completions, cross-platform considerations, and distribution strategies.
Skill Claude CodeCodex
Structured code review protocol for inspecting code quality against the full rule set. Use when auditing code written by yourself or another agent, during the /audit skill, or when the user asks for a code review.
Skill Claude CodeCodex
Modern C++ (17/20/23) idioms: RAII, smart pointers, value semantics, Rule of Zero/Five, concepts, and std::expected error handling. Use when writing, refactoring, or reviewing C++ code, CMake targets, or native modules.
Skill Claude CodeCodex
Modern C# (10+/.NET) coding idioms: nullable reference types, records, pattern matching, async/await with CancellationTokens, LINQ performance, and DI. Use when writing, modifying, or reviewing C# application code or domain models. Pair with dotnet-idioms for framework APIs.
Skill Claude CodeCodex
Data pipeline architecture, ETL/ELT patterns, data quality, batch vs stream processing, orchestration, and data governance principles.
Skill Claude CodeCodex
Comprehensive protocol for validating root causes of software issues. Use when you need to systematically debug a complex bug, flaky test, or unknown system behavior by forming hypotheses and validating them with specific tasks.
Skill Claude CodeCodex
Django and Django REST Framework (DRF) patterns: ORM queries, model managers, class-based views, serializers, migrations, and pytest-django testing. Use when building or maintaining Django backend applications. Pair with python-idioms.
Skill Claude CodeCodex
.NET 8+ framework architecture: Minimal APIs, EF Core data access, IOptions configuration, middleware pipelines, and WebApplicationFactory testing. Use when building ASP.NET Core services, Web APIs, or .NET cloud backends. Pair with csharp-idioms.
Skill Claude CodeCodex
Elixir and OTP idioms: pattern matching, with pipelines, GenServer and supervision tree architecture, fault-tolerant concurrency, and ExUnit testing. Use when developing, refactoring, or reviewing Elixir and Phoenix applications or OTP systems.
Skill Claude CodeCodex
Resource-constrained development, real-time patterns, interrupt handling, memory management, RTOS patterns, and hardware abstraction layers.
Skill Claude CodeCodex
Feature flag lifecycle patterns: release flags, ops kill switches, experiment toggles, and permission gating. PRD-gated — use only when PRD or architecture explicitly requires gradual rollout, A/B testing, or kill switches.
Skill Claude CodeCodex
Flutter idioms: Riverpod 3 state management, Freezed immutable models, gorouter navigation, const widget optimization, and repository patterns. Use when developing, refactoring, or reviewing Flutter mobile applications.
Skill Claude CodeCodex
Generates distinctive, production-grade frontend interfaces and artifacts (React, Vue, HTML/CSS). Prioritizes bold aesthetics, unique typography, and motion to avoid generic designs. Use when building websites, landing pages, dashboards, posters, or when the user requests to style, beautify, or create visually…
Skill Claude CodeCodex
Ensures every commit in a series is what it claims to be — a working, gate-passing snapshot in isolation, not just a slice of a working directory that happened to pass while other changes sat nearby. Covers verifying commit history after the fact, designing pre-commit hooks that check the commit rather than the…
Skill Claude CodeCodex
Go idioms and patterns: stdlib conventions, explicit error wrapping (%w), small interfaces, goroutines/channels concurrency, table-driven tests, and gofumpt formatting. Use when writing, refactoring, or reviewing Go services and packages.
Skill Claude CodeCodex
Pre-flight checklist and post-implementation self-review protocol. Use before generating any code (pre-flight) and after writing code but before verification (self-review) to catch issues early.
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: