By giulioco
Automate marketing and growth workflows with AI-powered skills for social media strategy, content creation, image generation, writing improvement, growth diagnostics, and sales coaching.
Generate or edit raster images (photos, illustrations, mockups, logos, product shots, game/UI assets, textures, infographics) using Codex's built-in image_gen tool — driven headlessly through `codex exec`. Billed via the user's ChatGPT/Codex login, so it needs NO OpenAI API key. Use whenever the user wants to create a brand-new image from a text prompt, edit an existing local image (background swap, lighting/weather change, object add/remove, restyle), or produce several image variants. Trigger on "generate an image", "make a picture/illustration/logo/mockup of X", "create a hero image", "edit this image", "change the background of X", "turn this photo into Y", "imagegen", "use codex to make an image". Do NOT use for vector/SVG icon systems, diagrams better built in code/HTML/CSS, or when the user explicitly wants the OpenAI Image API directly (that's the gpt-image CLI path).
Rewrite any piece of writing to be more engaging, punchy, and story-driven using Scott Galloway's (Prof G) storytelling playbook — the Wow Test, Data Elevation, the Hook, Assume Intimacy, More Drama, Zoom Out, and Anchored Provocation. Use this whenever the user wants writing to hit harder: newsletters, LinkedIn/X posts, build-in-public updates, pitch decks, cold emails, essays, landing-page copy, launch announcements, or any draft they call boring, flat, dry, corporate, forgettable, or "needs more punch." Trigger it when someone says "make this more engaging," "sharpen this," "add drama," "why is this boring," "hook the reader," "elevate this number," or shares a draft asking for feedback on how it reads. Also use it proactively when you notice a draft opening with throat-clearing, burying its best line, or stating big numbers raw.
Diagnose the real growth bottleneck and prescribe the next move, using the unified frameworks from Ryan Holiday's Growth Hacker Marketing, Sean Ellis & Morgan Brown's Hacking Growth, and Weinberg & Mares' Traction. Use whenever the user is thinking about how to grow a startup, increase signups, fix a leaky funnel, pick a marketing channel, run growth experiments, find product-market fit, increase activation, retain users, build virality, or hit a revenue milestone. Also trigger on "stuck at $X MRR", "should I run ads on Y", "my conversion is 0%", "how do I get my first 100 users", "marketing strategy", "go-to-market", "ICE score", "Bullseye", "aha moment", "PMF", "viral loop", "referral program", "retention curve", or any situation where a founder is choosing between growth tactics. Refuses to recommend a tactic before diagnosing the stage — founders picking the channel they're comfortable with, not the one their stage needs, is the
Generate a deep, book-grounded skill for any subject the user wants to master. Researches the canonical books on the topic, downloads them as PDFs (using the bundled `scripts/libgen.py` downloader), reads them in parallel via subagents, then synthesizes the books across each other into a concept-organized knowledge base — not a shelf of book summaries. Output is a tight `SKILL.md` plus per-concept `frameworks/` files (the working knowledge base, organized by idea) plus per-book `references/` deep-dives (the citation layer). Trigger whenever the user says they want to "learn X", "master X", "build a skill for X", "study X", "get smarter at X", "make me a skill on X", "I want to be good at X", "teach me X", "create a coach for X", or asks for help internalizing the canonical thinking on a craft, discipline, methodology, or domain. Don't trigger for "make a skill that does Y" (workflow automation — use /skill-creator). Trigger for "make a skill that helps me think like Y" (knowledge synthesis — that's this skill).
Craft highly effective prompts for Nano Banana Pro (Gemini image generation). Use when generating images with Nano Banana Pro for any purpose including photorealistic portraits, product photography, creative experiments, e-commerce mockups, social media content, editorial layouts, 3D renders, era-specific aesthetics (Y2K, 2000s, 1990s), miniature/diorama effects, or any advanced image generation task. Provides proven prompt patterns, technical specifications, JSON structuring, identity preservation techniques, and style-specific templates.
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A curated collection of Claude Code skills for developers, marketers, and founders. Install with a single command to extend Claude's capabilities with specialized knowledge and workflows.
Install all skills:
npx add-skill giulioco/skills
Install specific skills only:
npx add-skill giulioco/skills --skill social-growth-engineer
Master prompt engineering for Nano Banana Pro (Gemini) image generation.
What it does: Comprehensive guide for crafting highly effective prompts for Nano Banana Pro. Provides proven patterns, technical specifications, JSON structuring, and identity preservation techniques based on analyzing 60+ successful prompts.
Use when:
Knowledge includes:
Size: 38 KB (SKILL.md + 5 reference files)
Master viral app growth through organic social media marketing.
What it does: Teaches Claude everything about growing consumer apps virally through TikTok, Instagram Reels, and YouTube Shorts. Based on analyzing 100+ successful app launches generating billions of views and millions in monthly revenue.
Use when:
Knowledge includes:
Size: 91 KB (SKILL.md + 3 reference files)
Diagnose the real growth bottleneck and prescribe the next move, using the unified frameworks from three foundational growth books.
What it does: Synthesizes Ryan Holiday's Growth Hacker Marketing, Sean Ellis & Morgan Brown's Hacking Growth, and Weinberg & Mares' Traction into a single diagnostic + prescriptive system. Refuses to recommend tactics before diagnosing the stage — "founders pick the channel they're comfortable with, not the one their stage needs" is the #1 growth mistake.
Use when:
Knowledge includes:
Size: ~80 KB (SKILL.md + 9 reference files + 19 channel deep-dives)
Master sales coaching skill synthesizing six foundational books into a single working system.
What it does: Distills SPIN Selling (Rackham), Fanatical Prospecting (Blount), Gap Selling (Keenan), The Challenger Sale (Dixon & Adamson), Never Split the Difference (Voss), and How to Win Friends & Influence People (Carnegie) into a stage-aware sales coach. Diagnoses where you are in the journey first, then prescribes the right move from the right book — most sales failures come from using a small-sale tactic in a big-sale context, pitching before diagnosing, or arguing instead of asking.
npx claudepluginhub giulioco/skillsComprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
This skill should be used when users need to generate ideas, explore creative solutions, or systematically brainstorm approaches to problems. Use when users request help with ideation, content planning, product features, marketing campaigns, strategic planning, creative writing, or any task requiring structured idea generation. The skill provides 30+ research-validated prompt patterns across 14 categories with exact templates, success metrics, and domain-specific applications.
Develop, test, build, and deploy Godot 4.x games with Claude Code. Includes GdUnit4 testing, web/desktop exports, CI/CD pipelines, and deployment to Vercel/GitHub Pages/itch.io.
A growing collection of Claude-compatible academic workflow bundles. Covers scientific figures, manuscript writing and polishing, reviewer assessment, citation retrieval, data availability, paper reading, literature search, response letters, paper-to-PPTX conversion, and evidence-grounded Chinese invention patent drafting. Rules are organized as reusable skill folders with explicit workflows and quality checks.
Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.
Consult multiple AI coding agents (Gemini, OpenAI, Grok, Perplexity, plus codex, antigravity, and grok CLIs when installed) to get diverse perspectives on coding problems