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Vinkius

Counterfactual-Variant Prover Connector for AI agents.

1 live capability

Solve complex logic puzzles without the AI falling back on memorized answers.

Live agent request Counterfactual-Variant Prover / Connector

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Why people use Counterfactual-Variant Prover

Counterfactual-Variant Prover for Logic Puzzle Decontamination

With this Connector, that cycle stops. Instead of letting the AI guess, you force it to perform a cognitive decontamination. The agent has to identify the classic template, map out exactly how your version is different, and then do the math from scratch using only the facts you provided. You get a verified logical proof that actually respects your specific constraints.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
  • Visual Studio Code
  • Windsurf

What Vinkius changes

That you get a logically sound answer that actually respects the specific constraints of your prompt.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 5,900+ Connectors

  1. Real-world use case 01

    Modified Monty Hall Problems

    A user asks a 5-door Monty Hall question.

  2. Real-world use case 02

    River Crossing Variations

    A developer tests an agent's ability to handle a 2-item boat capacity.

  3. Real-world use case 03

    Cognitive Debiasing Research

    A researcher uses the capability to see if an agent can ignore the Trolley Problem template when the tracks are rearranged in a non-standard way.

Complete set · 1capability

The complete Counterfactual-Variant Prover capability set.

These are the exact actions your AI can choose when you ask it to work with Counterfactual-Variant Prover.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through Counterfactual-Variant Prover.

  1. 01 Capability

    Validate counterfactual

    Forces the agent to identify classic patterns, isolate variables, map rule changes, and calculate the result from first principles.

Set up in minutes

One URL. Then ask Counterfactual-Variant Prover to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use Counterfactual-Variant Prover from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_DsoSPwZEWSeSBTBSQCX8U58BqAbjy82WIsWBk6Wg/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it Counterfactual-Variant Prover, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable Counterfactual-Variant Prover for the conversation.

Where the request belongs

Work Counterfactual-Variant Prover can move forward.

Built around the request

It's for researchers, logic hobbyists, and developers who need to stress-test AI reasoning. If you're tired of your agent hallucinating the standard answer to a non-standard problem, this is for you.

01

AI Safety Researcher

Testing how agents handle out-of-distribution logic and avoiding retrieval anchors.

02

Logic Puzzle Hobbyist

Solving complex variants of classic riddles without getting lazy answers from the agent.

03

Software Architect

Designing complex state machines where rules change frequently and need precise reasoning.

When one Connector is not enough

Combine Counterfactual-Variant Prover with the systems that finish the task.

View all recipes

Build the capability set

Each Connector adds new actions and data without changing how you work.

Browse Connectors
Critical Thinking Prover logo
01 2 capabilities

Critical Thinking Prover

AI agents accept premises without questioning, analyze from one perspective, cherry-pick evidence, ignore consequences, and present uncertainty as certainty. This capability forces rigor: surface assumptions, apply competing frameworks, weigh counterevidence, trace ripple effects, bound confidence.

View Connector
Marilyn vos Savant Probabilistic Clarity Prover logo
02 1 capability

Marilyn vos Savant Probabilistic Clarity Prover

Stop your AI from trusting its gut. force it to check intuition against actual probability before every conclusion.

View Connector
First Principles Prover logo
03 1 capability

First Principles Prover

LLMs reason by analogy, copying industry norms. This engine is a 6-pivot cognitive trap that forces the agent to discard jargon and derive original solutions exclusively from physical, mathematical, or logical axioms.

View Connector
Einstellung-Challenger Prover logo
04 1 capability

Einstellung-Challenger Prover

AI models default to complex, familiar heuristics even when simpler solutions exist. This capability breaks suboptimal cognitive sets: identify default heuristics, search for counterexamples, map alternative paths, benchmark complexity metrics, and choose the most elegant solution.

View Connector
Aristotle Logic Prover logo
05 1 capability

Aristotle Logic Prover

Your AI used a term without defining it. 'Platform,' 'scalable,' 'efficient'. what do these MEAN in your context? Aristotle defined every concept with genus + differentia: 'Man is a RATIONAL ANIMAL.' Category: animal. Distinguishing property: rational. This capability forces precise definition, essential vs. accidental categorization, valid syllogistic proof, teleological purpose analysis, and dialectical counterargument examination.

View Connector
Inversion Thinking Prover logo
06 1 capability

Inversion Thinking Prover

AI agents are sycophantic. They agree with your bad ideas. This engine forces a 6-pivot cognitive trap: agents must destroy their own hypotheses, define measurable kill criteria, and simulate post-mortem failures before executing code.

View Connector

Bring your own AI

Change the model, client or framework. Keep Counterfactual-Variant Prover connected.

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Before you connect

Questions about Counterfactual-Variant Prover.

The practical details behind the request, access and result.

What is the Counterfactual-Variant Prover?

It is a specialized capability that forces your AI agent to think from first principles. It prevents the AI from giving you 'canned' answers to famous logic puzzles by making it ignore its training data and focus only on your specific rules.

How does it stop the AI from giving memorized answers?

It works by forcing the agent to identify a classic puzzle template first, then explicitly map out every single difference between your prompt and that classic version before it's allowed to calculate the final answer.

Can I use the Counterfactual-Variant Prover for math problems?

Yes, it is excellent for math logic where the rules or constants are non-standard. It ensures the AI uses your specific numbers rather than assuming common values like gravity or standard unit weights.

Why is 'recitation bias' a problem for my AI agent?

Recitation bias happens when an AI recognizes a famous problem and just repeats the answer it saw on the internet. This leads to errors if you've changed even one small detail of the puzzle.

How do I use the Counterfactual-Variant Prover with Claude or Cursor?

You can connect it through the Vinkius catalog. Once connected, you simply tell your agent to use the capability whenever you give it a complex logic puzzle or a multi-step reasoning task.

Is this capability for every type of AI prompt?

No, it's specifically designed for logic puzzles, math problems, and complex rule-based reasoning. For general tasks like summarizing text or writing emails, you don't need to use it.

How does Counterfactual-Variant Prover stop recitation bias?

By introducing structural friction. When an agent is forced to fill a schema requiring explicit separation of variables, mapping of differences, and step-by-step logic, it cannot rely on automatic token generation. The capability rejects any attempt to skip these steps or leak classic parameters.

What happens if a puzzle has no classic equivalent?

If no classic signature is detected, the model sets recitationSignatureDetected to false, maps variables, and solves it. However, if the text contains keywords of known puzzles (e.g. Monty Hall, Cheryl), the engine enforces the full counterfactual check to avoid semantic traps.

Can it be used alongside other reasoning provers?

Yes. It works as an orthogonal check. While the Critical Thinking Prover checks overall cognitive quality, the Counterfactual-Variant Prover focuses specifically on variable isolation and preventing memorization loops in logic and mathematics.

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