Agent Skills (SKILL.md) by OverKill Hill for Claude, OpenClaw, and Codex. BPMN-aware Mermaid diagramming, a LinkedIn voice-to-post pipeline, and process-capture meta-skills for turning recurring work into reusable agent skills. Gotta have the skillz to pay the bills.
This repository also configures its own agents. See what skillz tells them →
Skill Claude CodeCodex
Universal SQL code review assistant that performs comprehensive security, maintainability, and code quality analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Focuses on SQL injection prevention, access control, code standards, and anti-pattern detection. Complements SQL optimization prompt for…
Skill Claude CodeCodex
Universal SQL performance optimization assistant for comprehensive query tuning, indexing strategies, and database performance analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Provides execution plan analysis, pagination optimization, batch operations, and performance monitoring guidance.
Skill Claude CodeCodex
Use when: comparing SQL Server tables across instances, data migration validation, ETL verification, row mismatch detection, schema drift, reconciliation report, production vs staging comparison. Uses mssql-python driver with Apache Arrow for fast columnar data transfer and comparison.
Skill Claude CodeCodex
Test-Driven Development guidance. Use when writing tests before implementation, applying Red-Green-Refactor, testing Value Object contracts, typed domain failures/Results, DDD Aggregates, Domain Events/subscribers, transaction or cache boundaries, data migrations/backfills, Criteria/query adapters, repository…
Skill Claude CodeCodex
Comprehensive technology stack blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks, programming languages, and implementation patterns across multiple platforms (.NET, Java, JavaScript, React, Python). Generates configurable blueprints…
Skill Claude CodeCodex
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.
Skill Claude CodeCodex
Full STRIDE-A threat model analysis and incremental update skill for repositories and systems. Supports two modes: (1) Single analysis — full STRIDE-A threat model of a repository, producing architecture overviews, DFD diagrams, STRIDE-A analysis, prioritized findings, and executive assessments. (2) Incremental…
Skill Claude CodeCodex
Works out what could go wrong in a system's design before it is built — who would attack it, how, and which defences are worth having. Use this whenever the user is designing a system that handles sensitive data, money, or authentication, asks what the security risks are, mentions threat modeling or STRIDE, or is…
Skill Claude CodeCodex
Creates valid Microsoft Threat Modeling Tool (.tm7) files compatible with the Microsoft Threat Modeling Tool v7.3+. Use this skill whenever asked to create, generate, or modify a .tm7 threat model file, or when performing STRIDE threat modeling that should output a .tm7 file that opens cleanly in the Microsoft Threat…
Skill Claude CodeCodex
Writes unit tests for code that already exists — choosing what deserves a test, what the cases are, and how to assert without welding the test to the implementation. Use this whenever the user asks for tests, unit tests, more coverage, or tests for a specific function or module, and also when adding to untested code…
Skill Claude CodeCodex
Update an existing specification file for the solution, optimized for Generative AI consumption based on new requirements or updates to any existing code.
Skill Claude CodeCodex
React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.
Skill Claude CodeCodex
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
Skill Claude CodeCodex
This skill enables visual inspection of websites running locally or remotely to identify and fix design issues. Triggers on requests like "review website design", "check the UI", "fix the layout", "find design problems". Detects issues with responsive design, accessibility, visual consistency, and layout breakage…
Skill Claude CodeCodex
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
Skill Claude CodeCodex
Comprehensive technology-agnostic prompt generator for documenting end-to-end application workflows. Automatically detects project architecture patterns, technology stacks, and data flow patterns to generate detailed implementation blueprints covering entry points, service layers, data access, error handling, and…
Skill Claude CodeCodex
Write a coding standards document for a project using the coding styles from the file(s) and/or folder(s) passed as arguments in the prompt.
Skill Codex
Extract manually supplied xAI Grok conversations into standalone, actionable Markdown. Use when the user pastes a Grok chat, X-grounded answer, DeepSearch or reasoning output, prompt-response sequence, source list, connector result, image, video, file, or Canvas reference and wants its goals, reasoning, decisions…
Skill Codex
Extract manually supplied Microsoft Copilot and Microsoft 365 Copilot chats into standalone, actionable Markdown. Use when the user pastes a Copilot chat, Work or Web-grounded answer, Copilot Page, agent output, prompt-response sequence, or references to files, emails, meetings, people, or tenant sources and wants…
Skill Codex
Extract manually supplied Google Gemini conversations into standalone, actionable Markdown. Use when the user pastes a Gemini chat, Gem output, Canvas, Deep Research report, Workspace-grounded answer, file analysis, prompt-response sequence, image or audio reference, or export excerpt and wants its goals, reasoning…
Skill Codex
Extract manually supplied Mistral Vibe or former Le Chat conversations into standalone, actionable Markdown. Use when the user pastes a Vibe Work, Chat, or Code thread, Canvas, plan, tool trace, approval request, connector result, file analysis, prompt-response sequence, or export excerpt and wants its goals…
Skill Codex
Extract manually supplied Perplexity conversations into standalone, actionable Markdown. Use when the user pastes a Perplexity Thread, Space excerpt, Research or Create output, source-rich answer, prompt-response sequence, uploaded-file reference, or export excerpt and wants its goals, reasoning, decisions, citations…
Skill Claude CodeCodex
Design, author, evaluate, and package a reusable Microsoft Copilot Studio agent skill. Use when a task-specific capability must be created or shared across Copilot Studio agents powered by the GitHub Copilot harness. Do not use for Cowork packages, SharePoint site skills, GitHub repository skills, agent identity…
Skill Claude CodeCodex
Find and reconcile the user's commitments across an agreed set of email and meeting sources. Use when preparing an accountable follow-up list, checking promises, or identifying open commitments. Do not assign commitments, send reminders, create tasks, or alter records without explicit approval.
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: