claude▌

Create, edit, and analyze Excel spreadsheets with formulas, formatting, and error-free calculations. \n \n Supports reading, creating, and modifying .xlsx, .xlsm, .csv, and .tsv files using pandas for data analysis and openpyxl for formulas and formatting \n Automatically recalculates all formulas and scans for Excel errors (#REF!, #DIV/0!, #VALUE!, #N/A, #NAME?) using LibreOffice integration \n Enforces industry-standard color coding and number formatting for financial models (blue for inputs,

### Data Compression Utility - Reduces file sizes by applying lossless compression algorithms to specified inputs. - Supports multiple compression formats to optimize storage and transmission efficiency. - Provides command-line flags for adjusting compression levels and output directory paths.

Intercept and block dangerous git commands before Claude executes them via PreToolUse hooks. \n \n Blocks five command categories: git push (including --force ), git reset --hard , git clean , git branch -D , and git checkout / git restore on tracked files \n Installs as a bash hook script to either project scope ( .claude/settings.json ) or globally ( ~/.claude/settings.json ) \n Customizable blocklist: edit the hook script to add or remove patterns based on your safety requirements \n Claude r

Multi-component React artifacts for Claude with bundling, state management, and shadcn/ui component library. \n \n Scaffolds React 18 + TypeScript projects with Vite, Tailwind CSS, and 40+ pre-installed shadcn/ui components via automated initialization script \n Bundles complete artifacts into single self-contained HTML files with inlined assets, ready for Claude artifact display \n Includes design guidance to avoid common \"AI slop\" patterns like excessive centering, purple gradients, and unif

Create, edit, read, and manipulate PowerPoint presentations with design guidance and quality assurance workflows. \n \n Supports three primary workflows: reading/extracting text from existing .pptx files, editing presentations via template unpacking and repacking, and creating decks from scratch using PptxGenJS \n Includes 10 curated color palettes and typography pairings designed to avoid generic AI aesthetics, plus layout patterns (two-column, icon rows, grids, half-bleed images) with specific

### Tech Debt - description: "Track, categorize, and prioritize technical debt across the codebase. Scans for debt indicators, maintains a debt register, and recommends repayment scheduling." - argument-hint: "[scan|add|prioritize|report]" - allowed-tools: Read, Glob, Grep, Write

### Social Campaign Planner - Develops cohesive social media campaigns by defining objectives, target audiences, and key campaign moments. - Structures content across organic and paid channels using a strategic sequence from initial teaser to launch and follow-through. - Provides comprehensive outputs including channel roles, asset ideas, posting schedules, and relevant KPI suggestions.

### Lead Magnet Creation - Develop high-value, practical resources like checklists, templates, or guides to capture leads and support sales qualification. - Follow a structured workflow to identify audience pain points, select the optimal format, and draft compelling asset copy. - Provide comprehensive outputs including title options, content outlines, opt-in promises, and strategic follow-up email hooks.

Create, test, and iteratively improve AI agent skills with structured evaluation and benchmarking. \n \n Guides you through the full skill development lifecycle: intent capture, drafting, test case creation, evaluation, and iteration based on user feedback \n Runs parallel test cases with and without the skill to measure impact, capturing timing and token usage for quantitative comparison \n Generates an interactive browser-based reviewer showing outputs, qualitative feedback, and benchmark metr

Author production-grade prompts for Claude by applying Anthropic's canonical prompt-engineering best practices in impact order: clarity, examples, chain-of-thought, XML tags, system roles, prefilling, prompt chaining, and long-context tips.