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We tested mcp-builder, Anthropic's official skill for building MCP servers: one for a small shop in 99 seconds for 0.25 USD, plus two version bugs to avoid.

We tested webapp-testing, Anthropic's official skill that tests your local web app with Playwright: setup, with_server.py, two real pitfalls and what it costs.

video-shotcraft is an Apache-2.0 skill with 150 shots that lets Claude Code build your product's promo video in Remotion. How it works and what it costs.

Bang Motion is an MIT skill that builds openers, promos and explainers as one GSAP index.html: how it works, how to install it and what it really costs.

A tour of the 19 skills in the anthropics/skills repo: what each one does, how to install them in Claude Code, which license they use and what they cost.

Impeccable gives your coding agent 24 design commands and a 62-rule detector for “AI slop”. We tested it on a real landing page: cost, limits and risks.

Anthropic's harness to find vulnerabilities with Claude Code: /vuln-scan, /triage and /patch skills, a gVisor-sandboxed pipeline and our real test.

We review OpenMontage, the open source system that turns Claude Code or Codex into a video studio: pipelines, cost per video, AGPL license and limits.

Chain copywriting, frontend-design, schema and seo-audit in Claude Code to ship a landing page ready to publish. Real test, costs and the 5 errors we hit.

Build a WhatsApp AI agent with wa-agent-starter (MIT): setup with Claude Code, Coolify deploy, its 4 prompt injection defenses, our test results and 3 fixes.

What prompt injection is, how it gets into an AI agent and how to prevent it: lethal trifecta, layered defenses, security skills and a real test.

We review editonny 1.1.0, the MIT skill for Claude Code and Codex that cuts pauses, adds captions and motion scenes to your videos without leaving your machine.

Install claude-code-owasp, the MIT skill that reviews code with OWASP Top 10:2025, ASVS 5.0 and the 2026 LLM and agentic risks. Real test with and without it.

What prompts.chat (formerly Awesome ChatGPT Prompts) is: 2,744 CC0 prompts, a Claude Code plugin, an MCP server, a CLI and how to self-host it with Docker.

What Archify is: the Claude Code, Codex and Cursor skill that draws architecture, sequence and ERD diagrams as interactive HTML. Install, prompts and license.

What ODD (Organic Driven Development) is, how it differs from SDD, Spec Kit and Kiro, when to use each one and how to apply it in Claude Code.

Call.md transcribes your calls live, suggests what to say, queries your MCP tools and saves the summary as Markdown. How it works, requirements and license.

We tested OpenMuse, CopilotKit's MIT personal agent with a browser, terminal and files: what it does, how to install it, what works without an account.

How to use NVIDIA's SkillSpector with find-skills to discover Claude Code skills and catch malicious code before installing them. Real tests and screenshots.

Install and use security-audit, Cloudflare's MIT skill that audits your code with agents: its modes, project setup and a real audit walked through step by step.

We tested Superpowers 7.0, the MIT skills plugin for Claude Code, Codex and Cursor: what each skill does, how to install it and how it changes your agent.

How to use Vercel Labs' find-skills so Claude Code finds, compares and installs the right skill for each task. A real test with screenshots.

A practical guide to Claude Code skills: what a SKILL.md is, where skills live, npx skills add, invoking them with /name and sharing them with your team.

What the 17 social-media-skills for Claude and Codex really do, how to install them, which order to use them in and what they need (Apify, Gemini).

Fish Speech 3.0 ships Drama 3 and S2-Pro: voice cloning and TTS you can run on your own GPU. Hardware, license and what it costs compared with ElevenLabs.

What Speridlabs' Idol is, how it turns one photo into a 3D Gaussian splat, how much GPU it needs, how to install it and which licenses to check first.

A code-level look at Concat 0.2.8, the free, local CapCut alternative: Whisper captions, no watermark, AGPL license and a built-in MCP server for AI agents.

What Dioramas is: an MIT framework for 3D landing pages in three.js, with a Nano Banana 2 + Meshy 7.1 asset pipeline, a post-processing engine and 20 examples.

We review VoiceStudio 0.5.7: voice cloning and design, video dubbing, dictation and MCP for Claude Code on your PC. AGPL license and which models you can use.

Filee converts images, PDF, Word, Excel, video and 266 formats when you drop a file on a ring menu at your cursor. Free, MIT, offline. What it does and setup.

Google Maps Scraper Kit turns local businesses into a CSV of names, phones, emails and websites, free and on your machine. Use cases, setup and the legal side.

System Design 101 collects 400 free visual guides from ByteByteGo on APIs, databases, caching and distributed systems: what is inside and its license.

Recordly records your screen and adds auto zoom, a smooth cursor, backgrounds and webcam on Windows, macOS and Linux. What it does, how it works, its license.

What OpenSEO is, the MIT Semrush and Ahrefs alternative: how it works, what it costs, how to self-host it with Docker and use it from Claude Code over MCP.

Solid Glass turns your shadcn/ui components into smoky glass with one stylesheet. Real examples, a comparison with Material UI and how to use it in Next.js.

BG0 removes photo backgrounds in your browser with WebGPU or WebAssembly: no upload, no account. How it works, which model it runs, its license and limits.

Two immersive websites made with HyperFrames 0.8.170, GSAP and Claude Code, for bikes and cars, with scroll-driven scenes: demos, timings, pros and limits.

We tested HyperFrames 0.8.170, HeyGen's Apache 2.0 framework that renders HTML to MP4: setup, local Kokoro voiceover, background music and real errors.

We review It's a Plan 1.5, the open source issue tracker with AI agents: what it does, how it works, pros and cons, and if it fits companies or freelancers.

We tested FigCraft 0.5.1, the open source Figma alternative written in Rust: features, install, its CLI and MCP server for AI agents, and what it still lacks.