Lofi Fren

Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.

Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

This skill should be used when the user asks to "create a PicoCalc app", "build a game for PicoCalc", "write a PicoCalc script", "new app for the handheld", "make a tool for PicoCalc", "add a PicoCalc application", or mentions building any application, game, utility, or tool for the PicoCalc device. Also activate when the user mentions writing MicroPython code targeting the 320x320 display, membrane keyboard, or audio PWM on the Clockwork Pi PicoCalc with Raspberry Pi Pico 2W.

This skill should be used when the user asks to "create a C module", "modify the display driver", "modify the terminal emulator", "add native code", "MicroPython C API", "compile firmware", "picocalcdisplay module", "vtterminal module", or wants to create or modify C extension modules compiled into the MicroPython firmware for PicoCalc (RP2350/Pico 2W).

This skill provides hardware reference data for PicoCalc development. It should be activated automatically when writing code that accesses GPIO pins, SPI buses, I2C interfaces, the 320x320 display, membrane keyboard, SD card, audio PWM, WiFi, or Bluetooth on the Clockwork Pi PicoCalc with Raspberry Pi Pico 2W. Use this skill whenever pin numbers, bus configurations, register addresses, or hardware specifications are needed.

This skill should be used when the user asks to build WiFi or BLE networking features for PicoCalc, mentions "WiFi for PicoCalc", "BLE feature", "Bluetooth PicoCalc", "network connectivity", "WiFi scanning", "connect to WiFi", "BLE file transfer", "wireless PicoCalc", "ProxiScan", "FoxHunt", or wants to add any network/wireless functionality to a PicoCalc application.

This skill should be used when the user reports PicoCalc issues (boot failures, SD card not mounting, display blank, keyboard not responding), wants to flash firmware, deploy scripts to SD card, debug errors, or manage the PicoCalc device. Activate when the user mentions "PicoCalc not booting", "boot loop", "SD card error", "display not working", "flash firmware", "UF2", "BOOTSEL", "deploy to PicoCalc", "copy to SD card", "PicoCalc error", or "debug PicoCalc".

This skill should be used when the user asks to "review PicoCalc code", "check my PicoCalc app", "validate PicoCalc script", "audit embedded code", "is this PicoCalc code correct", or wants feedback on MicroPython code targeting the PicoCalc device. Activate when reviewing any Python code that imports picocalc, uses PicoDisplay, PicoKeyboard, or targets the 320x320 handheld.

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

Install and deploy Claude Code skills from URLs with minimal interaction. Use this skill whenever a user provides a URL to a skill and wants to install it, deploy it, import it, or add it. Trigger on phrases like "install this skill", "import skill from", "deploy skill", "add this skill", or any message containing a GitHub URL pointing to a skill directory or a .skill file URL. Also trigger when users say "get this skill" or paste a URL and say something like "use this" or "set this up".