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The Tech Gazette
Agent skills are folders of instructions an agent loads when a task calls for them. These are read from the vendors' own repositories, in their own words, each under a license that lets it be shared.
Reverse engineer anything with agents, from app behavior down to native binaries.
Skills for Real Engineers. Straight from my .agents directory.
Editorial diagram design for Claude Code, Codex, GitHub Copilot, Cursor, Factory Droid, and Pi. 44 diagram types. Self-contained HTML + SVG. No shadows. No Mermaid slop.
Write HTML. Render video. Built for agents.
Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.
Official, Anthropic-managed directory of high quality Claude Code Plugins.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
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.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
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.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, project updates, etc.).
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
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.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
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.
/plugin marketplace add anthropics/skills /plugin install example-skills@anthropic-agent-skills
Build and troubleshoot Cloudflare Basin analytics workflows with Basin Pipelines, Basin Catalog, and Basin SQL. Use for streaming data into R2 Iceberg tables, managing catalogs, or querying those tables; also use for requests using the former Data Platform, Pipelines, R2 Data Catalog, or R2 SQL names.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Cloudflare's official cf CLI (beta) for the public Cloudflare API and Workers projects. Use for finding and running Cloudflare commands from the terminal — sign-in and profiles, cf cli search, cf schema, cf deploy/dev/build, resource commands for DNS, zones, D1, KV, and R2 — and for choosing between cf and Wrangler in a project.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Discover and choose Cloudflare products for apps, APIs, AI agents, storage, networking, and security. Use for architecture and product selection, including when the user describes a need without naming a Cloudflare product; then find the relevant skill or documentation.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Build and troubleshoot Cloudflare K2 or K2 Streams durable logs. Use for stream setup, producing from Workers or HTTP, configuring retention and inputs, and consuming through subscriptions.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Build or maintain Cloudflare Sandbox apps on @cloudflare/sandbox@next (SDK 1.0 preview). Use sandbox-migrate-to-next when porting a stable app.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Cloudflare Workers best practices for production applications. Use when writing, reviewing, or configuring Workers.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects. Then use this information to optimize your code.
/plugin marketplace add cloudflare/skills /plugin install cloudflare@cloudflare
Check the health of published EAS Update: crash rates, install/launch counts, unique users, payload size, and the split between embedded and OTA users per channel. Use when the user asks how an update is performing, whether a rollout is healthy, how many users are on the embedded build vs OTA, or wants to gate CI on update health.
claude plugin install expo@claude-plugins-official
Helps understand and write EAS workflow YAML files for Expo projects. Use this skill when the user asks about CI/CD or workflows in an Expo or EAS context, mentions .eas/workflows/, or wants help with EAS build pipelines or deployment automation.
claude plugin install expo@claude-plugins-official
Integrate Expo and React Native into an existing native iOS or Android app. Use for brownfield, embedding a React Native screen in SwiftUI/UIKit or Kotlin, or AAR/XCFramework packaging. Covers isolated and integrated approaches. For building or distributing a purely native app with EAS, use eas-app-stores.
claude plugin install expo@claude-plugins-official
Use when implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, React Query, SWR, error handling, caching, offline support, loading/empty/error screen states, and Expo Router data loaders (`useLoaderData`).
claude plugin install expo@claude-plugins-official
Run evaluations for Hugging Face Hub models using inspect-ai and lighteval on local hardware. Use for backend selection, local GPU evals, and choosing between vLLM / Transformers / accelerate. Not for HF Jobs orchestration, model-card PRs, .eval_results publication, or community-evals automation.
hf skills add huggingface-community-evals
Use this skill for Hugging Face Dataset Viewer API workflows that fetch subset/split metadata, paginate rows, search text, apply filters, download parquet URLs, and read size or statistics.
hf skills add huggingface-datasets
Build Gradio web UIs and demos in Python. Use when creating or editing Gradio apps, components, event listeners, layouts, or chatbots.
hf skills add huggingface-gradio
Look up and read Hugging Face paper pages in markdown, and use the papers API for structured metadata such as authors, linked models/datasets/spaces, Github repo and project page. Use when the user shares a Hugging Face paper page URL, an arXiv URL or ID, or asks to summarize, explain, or analyze an AI research paper.
hf skills add huggingface-papers
Use this skill when the user wants to build tool/scripts or achieve a task where using data from the Hugging Face API would help. This is especially useful when chaining or combining API calls or the task will be repeated/automated. This Skill creates a reusable script to fetch, enrich or process data.
hf skills add huggingface-tool-builder
“The Batches API offers significant cost savings. All usage is charged at 50% of the standard API prices.”
“Cheaper input tokens: Pay the model’s reduced cached-input rate for reused tokens, discounted up to 95%.”
“The Gemini Batch API is designed to process large volumes of requests asynchronously at 50% of the standard cost.”
“Prompt caching optimizes your API usage by allowing resuming from specific prefixes in your prompts. This significantly reduces processing time and costs for repetitive tasks or prompts with consistent elements.”
“Learn how to use OpenAI’s Batch API to send asynchronous groups of requests with 50% lower costs, a separate pool of significantly higher rate limits, and a clear 24-hour turnaround time.”
“We automatically pass on cost savings if your request hits caches. There is nothing you need to do in order to enable this.”
“The pricing discounts from prompt caching and Message Batches can stack, providing even greater cost savings when both features are used together.”
“Minimize tokens: Lower the number of input tokens and optimize for shorter model outputs.”
“To reduce cost or latency without truncating responses, lower thinking_level (low or medium) instead of setting a small max_output_tokens.”
“Token counting is free to use but subject to requests per minute rate limits based on your usage tier.”
“Select a smaller model: Use models that balance reduced costs and latency with maintained accuracy.”
“Compaction replaces the older turns of a conversation with a summary that Claude writes on the server, so you need no summarization code of your own.”
“Flex processing provides lower costs for Responses or Chat Completions requests in exchange for slower response times and occasional resource unavailability.”