startup-pressure-test
Skill991 starsChanged 6 months agoMITView on GitHub
Brutally evaluate and refine startup ideas with practical early-stage startup frameworks. Use when Codex is asked to pressure-test a startup idea, validate whether the problem is real, map competitors and current customer behavior, find the first 10 customers, define an MVP, create a 2-week launch plan, assess founder-market fit, or give a direct strong/weak/pivot verdict.
2 other projects use a version of this.
Adopted by
Most recently taken up by
- ElyzeSolutions/skillsword for word, first seen Aug 6, 2026
- mick-net/Skillsword for word, first seen May 14, 2026
Other versions2 projects use a version of this.
Word for word · 2
- ElyzeSolutions/skills★ 1100% same
- mick-net/Skills★ 1100% same
Edited · 0
None found.
Wrote their own version · 0
None found.
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
The file
Show its rules and text
We split this skill into the rules it gives an agent
13 rules. About 0 are common, 11 are distinctive, and 2 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈11
Distinctive · estimate
This author's own choices. Worth a look.
2
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 18
If the idea is missing, ask for it first.
- Distinctive: line 24
If the idea is already provided, start immediately.
- Very specific: line 37
Read references/playbooks.md for the detailed prompt templates and criteria for each mode.
- Distinctive: line 41
Default to compact output.
- Distinctive: line 99
Do not include outreach templates, discovery questions, or weekly plans unless the user asks for more detail.
- Distinctive: line 106
Treat current behavior as competition.
- Distinctive: line 107
Treat "we have no competition" as false by default.
- Distinctive: line 108
Test real behavior, not compliments or hypothetical intent.
- Distinctive: line 110
Prefer manual founder-led validation before automation.
- Distinctive: line 114
If the idea is weak, say so directly and explain the pivot path.
- Distinctive: line 115
Do not invent fake market data.
- Distinctive: line 119
Use scores only when useful:
- Very specific: line 134
If the user asks for deep, full report, brutal, be extremely honest, or give me more detail, expand each section with:
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Startup Pressure Test
Overview
Use this skill to pressure-test a startup idea before the user wastes time building the wrong thing. Be direct, specific, and practical. Use a Paul Graham-style early startup lens: real users, painful problems, current behavior, manual traction, and the smallest test that proves or kills the idea.
Language
Match the user's language. If the user writes in Italian, answer in Italian. If the user writes in English, answer in English. Keep common startup terms in English when clearer: ICP, MVP, PMF, early adopter, switching cost, wedge.
First Move
If the idea is missing, ask for it first. Keep the question short:
Send me the startup idea, target customer, and what you want them to do/pay for.If the idea is already provided, start immediately.
Modes
Choose the mode from the user request. If unclear, use full.
pressure-test: find fatal flaws and give a verdict.problem-validation: test whether the pain is real and urgent.competition-map: map current behavior, direct competitors, indirect competitors, and switching cost.first-10-customers: create a manual plan to find and convert the first 10 customers.mvp-plan: define the smallest MVP that tests the core assumption in 2 weeks.full: run a compact version of all modes.
Read references/playbooks.md for the detailed prompt templates and criteria for each mode.
Default Output
Default to compact output. Most users need a sharp diagnosis they can scan in 30 seconds, not a long essay. Include the score table by default.
Use this shape:
**Verdict**
Strong / Weak / Pivot required
2-3 direct sentences.
**Scorecard**
| Area | Score | Read |
|---|---:|---|
| Pain intensity | 3/5 | ... |
| Buyer clarity | 2/5 | ... |
| Urgency | 3/5 | ... |
| Differentiation | 2/5 | ... |
| Speed to validate | 4/5 | ... |
| Founder advantage | 3/5 | ... |
**Core Assumption**
One sentence.
**Fatal Flaws**
| Risk | Severity | Why It Matters | Fast Test |
|---|---|---|---|
| ... | High | ... | ... |
**Problem Reality**
- Pain: ...
- Early adopter: ...
- Vitamin or painkiller: ...
**Competition**
- Current behavior: ...
- Real enemy: ...
- Differentiation needed: ...
**First 10 Customers**
1. ...
2. ...
3. ...
**MVP**
- Build:
- Cut:
- 2-week test:Default limits:
- Scorecard: always include 6 rows.
- Verdict: max 3 sentences.
- Fatal flaws: max 3 rows.
- Problem reality: max 3 bullets.
- Competition: max 3 bullets.
- First 10 customers: max 3 actions.
- MVP: max 3 bullets.
- Do not include outreach templates, discovery questions, or weekly plans unless the user asks for more detail.
Rules
- Be specific to the idea; never give generic startup advice.
- Rank dangerous flaws first.
- Identify the core assumption that must be true for the business to work.
- Treat current behavior as competition.
- Treat "we have no competition" as false by default.
- Test real behavior, not compliments or hypothetical intent.
- Discovery questions must ask about past behavior.
- Prefer manual founder-led validation before automation.
- First customers must be found manually before ads, growth hacks, or scale.
- Cut features that do not test the riskiest assumption.
- MVP must test the single riskiest assumption, not become a mini-product.
- If the idea is weak, say so directly and explain the pivot path.
- Do not invent fake market data. If market facts matter and are current/uncertain, browse or state what must be verified.
Scoring
Use scores only when useful:
| Area | Score |
| Pain intensity | 1-5 |
| Buyer clarity | 1-5 |
| Urgency | 1-5 |
| Differentiation | 1-5 |
| Speed to validate | 1-5 |
| Founder advantage | 1-5 |
Scores must be tied to evidence from the idea, not vibes.
Deep Mode
If the user asks for deep, full report, brutal, be extremely honest, or give me more detail, expand each section with:
- assumptions to validate
- disconfirming evidence to look for
- customer discovery questions
- outreach messages
- 2-week milestones
- pivot options
Still keep the writing direct and structured.
Resources
references/playbooks.md: Mode-specific checklists and output details.
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

