Hire an AI business idea market reviewer

Everything it can hand back

Your task sets the actual outputs. The specialist picks the methods that cover them.

• The belief your idea rests on, and whether it is new or a copy
• Your share of the market a buyer really compares you in
• The gap to your closest substitute, after switching costs
• How much of your value lies past year five, and what could end your edge
• A score on seven questions, a go, fix or stop call, and the first thing to fix

How it does the job well

• Start from the user problem and the evidence for it, then the solution.
• Write decisions down with the reason and the options you rejected.
• Keep scope small enough to ship and learn. Name what is out of scope.
• Define how success will be measured before building.

Mistakes it avoids

• Treating opinions or one loud request as proven demand.
• Specs that skip edge cases, error states or dependencies.
• Roadmaps with dates but no owners or confidence levels.

What a good result looks like

An example, not your task: You have a business idea and want to know if it can win a market for good before you put years into it.

• Step 1: The belief. The one belief your idea rests on, whether it is new or a copy, and a first market.
• Step 2: The market. Your share of the market a buyer really compares you in, and a call on whether you own it.
• Step 3: The gap. How far you are ahead of the closest substitute after the buyer's cost of switching.
• Step 4: Ten years out. How much value lies past year five, who can copy you, and what could end your edge.
• Step 5: Seven questions. A score on seven questions, a go, fix or stop call, and the weakest question as your first fix.
• HAND-BACK SUMMARY. Each step's file, any step not run and why, and every MISSING line in one list.

How the work is checked

• Each step passed its own checks, or the run stopped at the step that failed and says why.
• The steps ran in order, and each one used the result of the one before.
• Nothing was invented to fill a gap. Every gap is a MISSING: line.
• Nothing was sent, published or paid for without a clear yes.
• States which checks passed, failed or could not run, and names missing inputs.

These checks have not been run against a model yet. Your AI uses them to check its own work.

A second opinion

Before it hands back, your AI reviews the draft the way Peter Thiel and Rob Fitzpatrick would. This is a way of reviewing the work. It does not mean they wrote or endorse it.

Capabilities

• Finds the belief. Writes the one belief your idea rests on, checks it is true and not only unusual, and says if the idea is new or a copy.
• Sizes the market. Describes your market narrowly and widely, works out your share of each, and finds the one buyers compare you in.
• Tests for a ten-times edge. Measures you against the closest substitute on the one thing the buyer cares about, minus the cost of switching.
• Checks ten years out. Shows how much value lies past year five, who can copy you and how fast, and what could end the edge.
• Scores seven questions. Engineering, timing, monopoly, people, distribution, durability and secret, each with a pass line, then a go, fix or stop call.

How the role works

1. Checks your task, context and available tools.
2. Picks the methods needed and prepares a work plan.
3. Carries out supported tasks, with each method's limits and review gates.
4. Checks the real deliverables and corrects supported faults.
5. Hands back files, evidence and unresolved gaps.

Your specialist's working setup

Download the base specialist without a task form or account. README.md and SETUP.md explain how to use the folder. SOUL.md defines its scope. INTAKE.md asks missing questions inside your AI. PLAYBOOK.md, SKILLS.md, BEST_PRACTICES.md, CHECKS.md and HANDOFF.md guide the work and its checked deliverables.

Complete associated skills, supporting files and licences are included. Choose only the methods needed for the actual task. Keep context, working files and accepted feedback in your AI project.

Use this specialist through MCP or the API

Call prepare_specialist with role_id idea-market-test only. No task is required to load it. Your AI asks what job you need done, what you want back and which relevant context it can use.

For task-led hiring, call find_specialist, explain the suggested specialists and let the user accept or change the team.

Complete ZIP: Download base specialist. API: GET /api/v1/specialists/idea-market-test/pack. The host AI supplies its own model, tools and execution; a pack does not connect accounts or run a task.

Inputs and helpful context

The specialist starts from the task brief. Only active methods require their inputs.

For the primary method, when used

• Your idea in a few sentences, and who it is for
• Any numbers you have on customers, sales or costs (optional)
• Who is on the team and how long you have worked together (optional)

Helpful context (optional)

• Customer, sales and cost numbers
• Notes on why recent buyers said no
• Team history and who works full time

Tools and access

• Claude: Holds five checks, their sums and your plan in one run.
• Any good chat AI: Testing a belief against reasons and evidence is text work that any strong chat AI does with this skill.
• Any good chat AI: Sums over a few lists of buyers and a verdict are text work that any strong chat AI does with this skill.
• Any good chat AI: A comparison with a short sum is text work that any strong chat AI does with this skill.
• Any good chat AI: Discounting a few numbers and reasoning about rivals is text work that any strong chat AI does with this skill.
• Any good chat AI: Scoring against fixed rules and flagging gaps is text work that any strong chat AI does with this skill.

Functions and deliverables

• Business idea market reviewer: Share an idea, buyer evidence and rival facts. Get a market-boundary check, advantage review, long-term risks and questions to test first.
  • The belief your idea rests on, and whether it is new or a copy
  • Your share of the market a buyer really compares you in
  • The gap to your closest substitute, after switching costs
  • How much of your value lies past year five, and what could end your edge
  • A score on seven questions, a go, fix or stop call, and the first thing to fix
• Contrarian belief tester: Paste your big idea and see if it rests on a belief few people share. Get a contrarian belief test, plus the smallest market you could win first.
  • Your idea as one belief that few agree with
  • A split between evidence and hope
  • The narrowest first market
  • A description of the idea that names no rival
• Market definition and share checker: Share your product, buyers and market figures. Get share comparisons and a check of which market buyers actually use.
  • The claim you make, broken into its parts
  • Your share at four sizes of market
  • The market a buyer compares you in
  • A call: own, reach, sliver or fiction, and what to change
• Product alternative comparison reviewer: Find out if your product is ten times better than what buyers use now. Get the gap after switching cost and a clear verdict.
  • The closest substitute
  • The one measure that matters and both numbers
  • The gap after switching cost
  • A verdict and what to do next
• Ten-year durability checker: Check if your business edge will last ten years. See how much value sits past year five, who could copy you, and what could end it.
  • Where the value sits, with sums
  • Copiers and how long they would need
  • Which traits make you harder to copy
  • What could end your edge, and a call
• Seven-question startup scorer: Score your startup idea on seven make-or-break questions. Paste your plan and get a go, fix or stop call and the first fix.
  • A score on each of seven questions
  • What is missing for each
  • A go, fix or stop call
  • The weakest question and the first task to fix it
• Product context file writer: Share product facts, audience and positioning. Get a reviewed context file that other marketing skills can reference.
  • A product marketing context file
  • A summary of what the file already holds
  • A change log of updates
  • Gaps you still need to fill
  Source: Corey Haines.
• Peter Thiel: Test a startup idea with Peter Thiel's public approach. Find your market, your real edge and the weakest of seven questions. Not for investment calls.
  • Your problem worked on the way Peter Thiel would: their questions, their method, their push-back
  • The answer or the work, in Peter Thiel's voice, using their ideas by name
  • Anything that goes beyond their public record, marked
  • One suggested next step
• Rob Fitzpatrick: Improve customer questions or review interview notes using Rob Fitzpatrick’s Mom Test approach. Ask about past behavior and separate facts from praise.
  • Your problem worked on the way Rob Fitzpatrick would: their questions, their method, their push-back
  • The answer or the work, in Rob Fitzpatrick's voice, using their ideas by name
  • Anything that goes beyond their public record, marked
  • One suggested next step

Tasks you can use it for

• You have a business idea and want to know if it can win a market for good before you put years into it.
• Your plan says you have no competitors, or that you only need a small share of a huge market.
• You are about to pitch backers or hire a team and want to know where the plan is weakest.

Limits to check before starting

• Your product already has proven sales and you want to improve them: use a pricing review or a sales review instead.
• You want to check how strong your edge is over rivals: use the Product alternative comparison reviewer.
• You want to test the guesses behind your plan: use the workflow Risky business assumption test planner.

Best way to use this role

Give it one clear outcome, the actual files and a definition of done. Keep the work in one AI project so it can reuse checked context and earlier files.

• Download the handoff pack. It holds HANDOFF.md plus one skill file for each step.
• Give the folder to Claude (in Claude Code, or as files in a Claude Project) and say "Follow HANDOFF.md".
• Describe your idea and paste any numbers, lost-deal notes and team facts you have. It works step by step and saves each result.
• If step 2 says sliver, the later steps work on the narrower market. If steps 3 and 4 disagree, you see both.
• Read the weakest question last, then do the first fix it names before you spend more.

Read it as data

Read the complete role setup as JSON. Connect your AI to the AI Blocks MCP library and read aiblocks://roles/idea-market-test for its role instructions and pinned sources.

This is a prepared AI role. No task has run. Your AI carries out authorized work using its available tools and reports the actual deliverables and checks.