Is the Precoil EMT skill free?

Yes. The skill itself is free from David-Precoil/testing-business-ideas-with-claude. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Precoil EMT SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install Precoil EMT?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Precoil EMT with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Precoil EMT

Runs Bland's Extract-Map-Test system to surface a business idea's riskiest assumptions

by David-Precoil · David-Precoil/testing-business-ideas-with-claude

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 39a87ae

Produces exactly 3 'I believe...' assumptions per Desirability/Viability/Feasibility category as clean markdown tables and then names the single sharpest tension between them — noticeably tighter and more actionable than a plain-chat pressure-test, though every Test-phase reply ends with a soft, disclosed pointer to the author's paid experiment library.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What Precoil EMT does

Guides a three-phase Extract -> Map -> Test workflow that turns a business idea into DVF (Desirability/Viability/Feasibility) assumption tables, critiques a 2x2 risk-map screenshot, and drafts an experiment brief for the riskiest assumption. Triggers on phrasing like 'test my idea', 'pressure test this plan', or 'run EMT on this'.

How to install Precoil EMT

git clone https://github.com/David-Precoil/testing-business-ideas-with-claude
cd testing-business-ideas-with-claude
mkdir -p ~/.claude/skills
cp -r . ~/.claude/skills/precoil-emt

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Precoil EMT

/precoil-emt Runs Bland's Extract-Map-Test system to surface a business idea's riskiest assumptions

It also activates on plain-language prompts like these:

Pressure test my subscription box business idea
What are the riskiest assumptions in this expansion plan?
Help me validate this idea before I pitch it to my board

Frequently asked questions

Is the Precoil EMT skill free?: Yes. The skill itself is free from David-Precoil/testing-business-ideas-with-claude. SkillProof publishes the install command and an independent test verdict at no cost.
Does Precoil EMT work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Produces exactly 3 'I believe...' assumptions per Desirability/Viability/Feasibility category as clean markdown tables and then names the single sharpest tension between them — noticeably tighter and more actionable than a plain-chat pressure-test, though every Test-phase reply ends with a soft, disclosed pointer to the author's paid experiment library.
What is the Precoil EMT SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install Precoil EMT?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Precoil EMT with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.