Git & Version Control

Create ASCII diagrams for any GitHub Flavored Markdown file using graph-easy. Use for READMEs, design docs, specifications, or any markdown needing architecture diagrams. Zero external dependencies for rendering - pure text output embeds directly in markdown.

This skill generates interactive timeline visualizations using the vis-timeline JavaScript library. Use this skill when users need to create historical timelines, project timelines, event sequences, or any chronological data visualization with optional category filtering. The skill creates a complete MicroSim package with HTML, CSS, JSON data, and documentation.

Authentication library for Next.js applications (NextAuth.js v5). Use when building Next.js 14+ apps that need OAuth providers (GitHub, Google, etc.), credentials login, or session management. Provides adapters for Prisma, Drizzle, and other databases. Choose Auth.js over Passport.js for Next.js App Router projects.

Multi-agent parallel E2E validation workflow for database refactors and system migrations. Use when validating QuestDB deployments, schema migrations, bulk data ingestion pipelines, or any database-centric refactor requiring comprehensive testing across environment, data flow, and query layers.

This skill generates curated, verified reference lists for textbooks with level-appropriate resources (10 for junior-high, 20 for senior-high, 30 for college, 40 for graduate). References are formatted with links, publication details, and relevance descriptions. Use this skill when working with intelligent textbooks that need academic references, either book-level or chapter-level.

Create, navigate, and reorganize stacks in GitButler using virtual branches, anchor-based stacking, and post-hoc organization. Use for dependent branches, PR preparation, and reviewable feature breakdown.

Containerization for TypeScript/Node.js applications. Use when deploying Node.js backends, need consistent dev environments, or setting up CI/CD pipelines. Covers multi-stage builds, docker-compose for development, and production optimization. Choose this skill for containerizing tRPC/Express APIs with Prisma.

Creates specialized subagents for Claude Code with proper configuration, capabilities, tool restrictions, and Task tool integration. Use when building specialized agents, editing agent files, creating subagents for specific tasks, or when users mention agent development, subagent configuration, or Task tool usage. Different from Skills - agents are invoked via Task tool.

[YOUR_DESCRIPTION] - Be specific about WHAT the skill does and WHEN to use it. Include trigger keywords users might mention. Example: "Extract text and tables from PDF files, fill forms, merge documents. Use when working with PDF files or when the user mentions PDFs, forms, or document extraction."

One lifecycle for Lambda repos: choose a bd task, start work, land the PR, and watch GitHub via Dumbwaiter MCP until it merges.

Interactive setup workflow for running the Magnet MCP server locally (project-specific, magnet-app directory only). Use when user says "local setup", "run locally", "test locally", "configure MCP", or "set up local development".

Play an alert sound and speak "Project NAME needs your attention." Use at the end of a run or whenever Codex needs user input or confirmation; derive the project name from the git remote (origin) with fallback to the repo folder or an override.

Execute Preflight phase for /itp:go workflow - create ADR (MADR 4.0), design spec from global plan, verify checkpoint. Use when creating ADRs, design specs, or when /itp:go invokes Preflight phase. Triggers - ADR creation, design spec, MADR format, preflight verification.

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.

Penetration testing framework for exploit development, vulnerability validation, and authorized security assessments using Metasploit Framework. Use when: (1) Validating vulnerabilities in authorized security assessments, (2) Demonstrating exploit impact for security research, (3) Testing defensive controls in controlled environments, (4) Conducting authorized penetration tests with proper scoping and authorization, (5) Developing post-exploitation workflows for red team operations.

Generates README files, API documentation, and inline code comments following best practices. Use when creating project documentation, writing READMEs, documenting APIs, or explaining complex code.

This skill generates comprehensive chapter content for intelligent textbooks after the book-chapter-generator skill has created the chapter structure. Use this skill when a chapter index.md file exists with title, summary, and concept list, and detailed educational content needs to be generated at the appropriate reading level with rich non-text elements including diagrams, infographics, and MicroSims. (project, gitignored)

Configure scan-mcp MCP server in Claude Code's global configuration. Use when user wants to setup, configure, initialize, enable, or install the scan-mcp MCP server. Runs preflight checks for prerequisites (Node 22+, SANE tools, tiffcp), helps install missing dependencies, and adds server configuration with user-specified INBOX_DIR.

Expert guidance for using JJ (Jujutsu) version control system. Use when working with JJ, whatever the subject. Operations, revsets, templates, debugging change evolution, etc. Covers JJ commands, template system, evolog, operations log, and interoperability with git remotes.

The model must use this skill when : 1. working within any python project. 2. Python CLI applications with Typer and Rich are mentioned by the user. 2. tasked with Python script writing or editing. 3. building CI scripts or tools. 4. Creating portable Python scripts with stdlib only. 5. planning out a python package design. 6. running any python script or test. 7. writing tests (unit, integration, e2e, validation) for a python script, package, or application. Reviewing Python code against best practices or for code smells. 8. The python command fails to run or errors, or the python3 command shows errors. 9. pre-commit or linting errors occur in python files. 10. Writing or editing python code in a git repository.\n<hint>This skill provides : 1. the users preferred workflow patterns for test-driven development, feature addition, refactoring, debugging, and code review using modern Python 3.11+ patterns (including PEP 723 inline metadata, native generics, and type-safe async processing). 2. References to favor