human-skill is an open-source Claude skill (agent system prompt) that turns Claude from a Q&A assistant into a human-like product thinker: a visionary inventor, a pragmatic systems engineer, and a marketing strategist who understands consumer psychology. It runs every product idea through a 4-step protocol — Discovery → Invention → Engineering → Strategy — and ships answers as a compact "Invention Card".
Built and maintained by Holm Digital.
human-skill is a plug-and-play Claude Skill for Claude Code, Claude.ai Projects, and the Claude API. It gives the model a persistent professional identity with three fused roles:
- 🧠 Visionary Inventor — unlimited brainstorming, cross-domain concept fusion, "what if?" thinking
- ⚙️ Systems Engineer — feasibility verdicts, MVP scoping, technical risk analysis, red-flag detection for heavy operations
- 🎯 Marketing Strategist — positioning, storytelling, and a 12-principle consumer psychology toolkit (scarcity, anchoring, social proof, loss aversion, and more)
Use it for: app idea generation, product concept design, pain-point analysis, startup idea validation, feasibility checks, go-to-market strategy, ad storytelling, and behavioral-psychology-driven marketing plans.
Plain LLM answers list features; founders need decisions. human-skill forces a disciplined chain:
| Step | Question it answers | Output |
|---|---|---|
| 1 · Discovery | What does the user subconsciously want? | Need diagnosis + emotional persona |
| 2 · Invention | What has nobody built yet? | 3+ concepts, at least one cross-domain fusion |
| 3 · Engineering | Can it actually be built? | Green/Yellow/Red verdict + 3-feature MVP |
| 4 · Strategy | Why will people say "I must have this"? | Positioning + psychological trigger plan + launch hook |
Every idea is stress-tested against reality — including a mandatory "does this already exist in the app stores?" verification rule — before any marketing narrative is written.
git clone https://github.com/holm-digital-io/human-skill.git
mkdir -p ~/.claude/skills/human-skill
cp human-skill/SKILL.md ~/.claude/skills/human-skill/SKILL.mdThen type /human-skill in any Claude Code session, or just ask for product ideas, feasibility checks, or marketing strategy — the skill triggers automatically based on its description.
Copy the contents of SKILL.md into your Project instructions or the system prompt of your API call.
/human-skill I want a simple mobile app that makes money with micro in-app purchases
/human-skill Why would anyone pay for a digital gratitude journal? Analyze the psychology, then redesign it so they would.
/human-skill Run a feasibility and go-to-market pass on this idea: a lock-screen widget that visualizes doomscrolling as a growing dragon.
The answer always arrives as an Invention Card:
🧠 DIAGNOSIS : the subconscious need
💡 INVENTION : name + mechanics + the "what if…?" hook
⚙️ REALITY : feasibility verdict (Green/Yellow/Red) + 3-item MVP + critical risk
🎯 STRATEGY : positioning sentence + 2–3 psychological triggers + launch hook
📖 STORY : a 3-sentence scene with the user as protagonist
The Strategy step draws from 12 classic consumer-psychology principles — scarcity, anchoring, social proof, priming, reciprocity, rarity, reference points, the Baader-Meinhof effect, clustering, information gaps, the power of words, and loss aversion — each with a concrete application pattern. The principle set was compiled from Sabancı University EDU's "Marketing Psychology: A Journey into the Customer's Mind" and classic behavioral-economics literature.
Ethics built in: triggers may only be used when grounded in truth. Fake scarcity, fabricated social proof, and hidden subscription traps are dark patterns — the skill refuses to design them.
What is a Claude skill?
A markdown file (SKILL.md) with YAML frontmatter that Claude loads as specialized instructions for a task type. Skills work in Claude Code out of the box and can be pasted into any Claude system prompt.
Does it work with other LLMs (GPT, Gemini, Llama)?
Yes — the body of SKILL.md is a model-agnostic system prompt. Only the frontmatter is Claude-specific.
Is it free? Yes, MIT-licensed. Attribution appreciated.
Who is it for? Founders, indie hackers, product managers, growth marketers, and AI-agent builders who want idea generation with engineering discipline and psychology-driven go-to-market thinking in a single pass.
Claude skill · Claude Code skills · AI agent system prompt · product ideation AI · startup idea generator · app idea validation · feasibility analysis AI · marketing psychology AI · consumer behavior triggers · go-to-market strategy prompt · behavioral economics prompt · invention framework · MVP scoping · AI product strategist
MIT © 2026 Holm Digital
If this skill helps you ship something, star the repo — social proof is principle #3, after all.