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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,

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

Comprehensive PDF processing with text extraction, merging, splitting, form filling, and OCR capabilities. \n \n Supports core operations: merge/split PDFs, extract text and tables, rotate pages, add watermarks, encrypt/decrypt, and extract images \n Includes Python libraries (pypdf, pdfplumber, reportlab) and command-line tools (qpdf, pdftotext, pdftk) with ready-to-use code examples \n Handles scanned PDFs via OCR using pytesseract and pdf2image for searchable text extraction \n Dedicated form

Claude API integration for building LLM-powered applications across Python, TypeScript, Java, Go, Ruby, C#, and PHP. \n \n Defaults to Claude Opus 4.6 with adaptive thinking and streaming; supports tool use, structured outputs, batches, and file uploads through a single /v1/messages endpoint \n Language detection automatically routes you to the correct SDK documentation; includes decision trees for choosing between single API calls, workflows with tool use, and agentic loops \n Tool runner (beta

Distinctive, production-grade frontend interfaces that reject generic AI aesthetics. \n \n Guides design thinking before coding: establish bold aesthetic direction (brutalist, maximalist, retro-futuristic, luxury, playful, etc.) with clear purpose, tone, and differentiation \n Emphasizes typography, color theming, motion, spatial composition, and textural details as core design pillars; uses CSS variables, animations, and scroll-triggered effects \n Generates working, functional code (HTML/CSS/J

Structured workflow for collaboratively authoring documentation, proposals, specs, and similar content. \n \n Guides users through three stages: Context Gathering (closing knowledge gaps), Refinement & Structure (building sections iteratively), and Reader Testing (validating the doc works for fresh readers) \n Supports integration with shared documents, team channels, and templates to pull in context directly when connectors are available \n Uses brainstorming and curation cycles for each s

Apply Anthropic's official brand colors and typography to visual artifacts and designs. \n \n Includes a defined color palette with primary dark/light neutrals, mid and light grays, plus three accent colors (orange, blue, green) \n Applies Poppins font to headings (24pt+) and Lora font to body text, with automatic fallbacks to Arial and Georgia \n Smart color selection based on background context to preserve readability and visual hierarchy \n Works with system-installed fonts; no additional ins

Templates and guidelines for writing company-standard internal communications across multiple formats. \n \n Covers seven communication types: 3P updates, company newsletters, FAQ responses, status reports, leadership updates, project updates, and incident reports \n Each format has a dedicated guideline file in the examples/ directory with specific instructions for tone, structure, and content \n Helps maintain consistency across internal communications by enforcing company-preferred formats an

Create visually-driven design artifacts from philosophical aesthetic movements, expressed as pristine PDF or PNG artworks. \n \n Generates custom design philosophies (aesthetic movements articulated through form, space, color, and composition) as markdown foundations \n Expresses philosophies visually through museum-quality single or multi-page PDF/PNG compositions with minimal, integrated text \n Embeds subtle conceptual references invisibly into abstract compositions, rewarding deeper viewing

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