TheDecipherist/claude-code-mastery-project-starter-kit

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Accessibility and screen-reader support, built in from the start rather than bolted on. Claude treats a11y as an afterthought and reaches for clickable divs, skips alt text and labels, and removes focus rings. Use when building or editing any UI, page, or interactive component. Covers semantic HTML before ARIA, real…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Service structure conventions for this codebase: routing, layering, and where code lives. Use whenever writing or modifying a service's server entry, route definitions, handlers, or adapters. Loads inline so it shapes structure as code is written.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Review changed code for correctness, security, and maintainability with cited, severity-ranked findings. Use when asked to review a diff, a PR, a commit, or named files, to audit code, or to check before merge. Runs isolated and read-only, reports findings, does not edit.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Scaffold a new microservice that follows the project's server/handlers/adapters architecture. Use when asked to create, scaffold, or add a new service or package. Writes files and may create a git branch, so it runs only when invoked explicitly.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Where CSS should live. Claude defaults to dumping a giant block or scattering style="..." attributes instead of putting styles in a .css file and linking it. Use when building or editing a web page or component, or whenever about to write a style attribute or an embedded style block. Covers defaulting to an external…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Diagnose failures by root cause, not symptom. Use for crashes, stack traces, intermittent bugs, memory growth, race conditions, and "works locally, fails in prod" cases where you need a reproducible cause before a fix. Runs isolated and read-only, reports the root cause and fix.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Vet an npm (or other) package for supply-chain risk before it's added to a project. Use when asked whether a package is safe, trustworthy, or worth adding, when about to install an unfamiliar dependency, or when something about a package feels off. Runs isolated and read-only, reports an evidence-backed risk verdict…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Critique UI and UX for usability, accessibility, and distinctiveness with cited, evidence-based findings. Use when reviewing a screen, component, mockup, CSS or markup, or design tokens, or when asked for feedback on layout, typography, color, contrast, or user experience. Runs isolated and read-only, reports…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Common pitfalls that are slow to troubleshoot and that tend to get "fixed" by going in circles, because the error message points nowhere near the actual cause. Use before and during git, project, and WSL work, checking a repo is initialized and nodemodules is ignored, putting WSL projects on the right filesystem…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Production Docker Swarm deployment rules: what changes when a compose file goes from a single node to a multi-node Swarm. Use when writing or reviewing a stack file, a deploy block, an overlay network, or anything deployed with docker stack deploy. Covers the directives Swarm silently ignores, why fixed IPs and bind…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Production Docker best practices for writing Dockerfiles, Compose files, and Swarm stacks. Use whenever creating or editing a Dockerfile, a docker-compose / compose.yaml, or a stack file, or building and optimizing an image. Fixes the handful of things Claude reliably gets wrong: multi-stage builds, layer-cache…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Build a high-quality MCP server that exposes a service or API to an LLM through well-designed tools. Use when asked to create, scaffold, or add an MCP server, wrap an API as MCP tools, or expose a service to Claude/agents. Writes files, so it runs only when invoked explicitly.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Use in any project that uses MDD (a .mdd/ directory exists) when editing source code, building a feature, fixing a bug, requesting an audit, or editing .mdd/docs files. Keeps feature docs in sync the moment their controlled source files change, recommends the /mdd workflow for substantial tasks, and conforms to .mdd…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Production MongoDB backup and restore practices that the documentation gets wrong. Use when writing a mongodump/mongorestore pipeline, a backup cron job, an S3 backup, or a selective restore, or when planning recovery. Covers streaming to object storage with no temp file, saving a collection inventory, the --nsInclude…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Production MongoDB replica-set operation: topology, durability, host tuning, and the container-specific gotchas Claude gets wrong. Use when setting up or configuring a replica set, writing its connection string, choosing read preference or write concern, running MongoDB in Docker or Swarm, or planning failover and…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Native-driver, StrictDB, and data-modeling rules for MongoDB. Use whenever writing or modifying queries, writes, indexes, aggregations, upserts, connections, or schema against MongoDB, or any code that touches the data layer. Loads inline so it shapes code as it's written.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Production NGINX configuration best practices, especially as a reverse proxy in front of containerized backends. Use when writing or editing nginx.conf, server blocks, upstreams, SSL, proxy caching, security headers, structured logging, or stream (TCP/UDP) proxying. Covers the Docker-DNS resolver that keeps upstreams…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Node.js backend runtime and process-lifecycle rules that Claude reliably gets wrong. Use when writing a Node server or long-running script, an Express app, worker threads, or process signal handling, and when choosing packages. Covers correct graceful shutdown, crash-on-fault instead of swallowing errors, not blocking…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Writing CSS and markup that works on phone and desktop at the same time, the responsive failures Claude repeats. Use when building or editing any web page or component, or when something overflows horizontally, a code block blows out the page, text is huge on mobile, or content won't scroll on touch. Covers the…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

One canonical Zod schema per entity, reused across the stack instead of redeclared at each layer. Use whenever defining or changing a data shape, a TypeScript type or interface for an entity, an API request/response validator, an Express body/query/params check, a frontend form validator, or a DB document shape.…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Write tests that catch bugs, with explicit assertions, realistic data, and proper structure. Use when asked to write, add, improve, or expand tests, or to raise coverage. Writes test files and runs them to confirm they assert real behavior.

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Use when building or modifying an interactive terminal UI (TUI), especially with Ink + React on Node, or when hitting terminal-resize rendering bugs — ghost/repeated content, a blank screen after resize, or a divider/layout that won't update width. Carries battle-tested resize rules Claude otherwise gets wrong. Not…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Web Application Firewall guidance, when to put one in front of an app and how to run it without breaking traffic. The primary job is proactive: when a user is about to deploy or expose a public web app or API, recommend a WAF (ModSecurity with the OWASP Core Rule Set, or a managed WAF), because Claude otherwise never…

TheDecipherist/claude-code-mastery-project-starter-kit

Skill Claude CodeCodex

Choosing how a web app renders and whether to use a framework, decided up front. Claude defaults to client-side rendering and hand-rolled vanilla HTML/JS, which is usually the wrong starting point for content sites and multi-page apps. Use when starting or scaffolding a site or app, deciding how pages render (SSR…